StackGenVis: Alignment of Data, Algorithms, and Models for Stacking Ensemble Learning Using Performance Metrics
https://doi.org/10.1109/TVCG.2020.3030352
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1440 lines
51 KiB
1440 lines
51 KiB
from flask import Flask, render_template, jsonify, request
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from flask_pymongo import PyMongo
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from flask_cors import CORS, cross_origin
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import json
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import collections
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import numpy as np
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import re
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from numpy import array
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from statistics import mode
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import pandas as pd
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import warnings
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import copy
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from joblib import Memory
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from itertools import chain
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import ast
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from sklearn.linear_model import LogisticRegression
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from sklearn.neighbors import KNeighborsClassifier
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from yellowbrick.regressor import CooksDistance
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from sklearn.naive_bayes import GaussianNB
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from sklearn.ensemble import RandomForestClassifier
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from sklearn.pipeline import make_pipeline
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from sklearn import model_selection
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from sklearn.manifold import MDS
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from sklearn.manifold import TSNE
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from sklearn.metrics import classification_report
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from sklearn.preprocessing import scale
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import eli5
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from eli5.sklearn import PermutationImportance
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from sklearn.feature_selection import SelectKBest
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from sklearn.feature_selection import chi2
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from sklearn.feature_selection import RFE
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from sklearn.decomposition import PCA
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from mlxtend.classifier import StackingCVClassifier
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from mlxtend.feature_selection import ColumnSelector
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from skdist.distribute.search import DistGridSearchCV
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from pyspark.sql import SparkSession
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from scipy.spatial import procrustes
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# This block of code is for the connection between the server, the database, and the client (plus routing).
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# Access MongoDB
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app = Flask(__name__)
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app.config["MONGO_URI"] = "mongodb://localhost:27017/mydb"
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mongo = PyMongo(app)
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cors = CORS(app, resources={r"/data/*": {"origins": "*"}})
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# Retrieve data from client
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@cross_origin(origin='localhost',headers=['Content-Type','Authorization'])
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@app.route('/data/Reset', methods=["GET", "POST"])
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def Reset():
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global DataRawLength
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global DataResultsRaw
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global RANDOM_SEED
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RANDOM_SEED = 42
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global factors
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factors = [1,1,1,1,1]
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global XData
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XData = []
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global yData
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yData = []
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global XDataStored
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XDataStored = []
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global yDataStored
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yDataStored = []
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global detailsParams
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detailsParams = []
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global algorithmList
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algorithmList = []
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global ClassifierIDsList
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ClassifierIDsList = ''
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# Initializing models
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global resultsList
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resultsList = []
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global RetrieveModelsList
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RetrieveModelsList = []
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global allParametersPerformancePerModel
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allParametersPerformancePerModel = []
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global all_classifiers
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all_classifiers = []
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global crossValidation
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crossValidation = 3
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global scoring
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#scoring = {'accuracy': 'accuracy', 'f1_macro': 'f1_weighted', 'precision': 'precision_weighted', 'recall': 'recall_weighted', 'jaccard': 'jaccard_weighted', 'neg_log_loss': 'neg_log_loss', 'r2': 'r2', 'neg_mean_absolute_error': 'neg_mean_absolute_error', 'neg_mean_absolute_error': 'neg_mean_absolute_error'}
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scoring = {'accuracy': 'accuracy', 'f1_macro': 'f1_weighted', 'precision': 'precision_weighted', 'recall': 'recall_weighted', 'jaccard': 'jaccard_weighted'}
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global loopFeatures
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loopFeatures = 2
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global results
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results = []
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global resultsMetrics
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resultsMetrics = []
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global parametersSelData
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parametersSelData = []
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global target_names
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target_names = []
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return 'The reset was done!'
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# Retrieve data from client and select the correct data set
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@cross_origin(origin='localhost',headers=['Content-Type','Authorization'])
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@app.route('/data/ServerRequest', methods=["GET", "POST"])
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def RetrieveFileName():
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fileName = request.get_data().decode('utf8').replace("'", '"')
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#global featureSelection
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#featureSelection = request.get_data().decode('utf8').replace("'", '"')
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#featureSelection = json.loads(featureSelection)
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global DataRawLength
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global DataResultsRaw
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global RANDOM_SEED
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RANDOM_SEED = 42
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global XData
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XData = []
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global yData
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yData = []
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global XDataStored
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XDataStored = []
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global yDataStored
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yDataStored = []
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global filterDataFinal
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filterDataFinal = 'mean'
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global ClassifierIDsList
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ClassifierIDsList = ''
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global algorithmList
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algorithmList = []
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global detailsParams
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detailsParams = []
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# Initializing models
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global RetrieveModelsList
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RetrieveModelsList = []
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global resultsList
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resultsList = []
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global allParametersPerformancePerModel
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allParametersPerformancePerModel = []
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global all_classifiers
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all_classifiers = []
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global crossValidation
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crossValidation = 3
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global scoring
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scoring = {'accuracy': 'accuracy', 'f1_macro': 'f1_weighted', 'precision': 'precision_weighted', 'recall': 'recall_weighted', 'jaccard': 'jaccard_weighted'}
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#scoring = {'accuracy': 'accuracy', 'f1_macro': 'f1_weighted', 'precision': 'precision_weighted', 'recall': 'recall_weighted', 'jaccard': 'jaccard_weighted', 'neg_log_loss': 'neg_log_loss', 'r2': 'r2', 'neg_mean_absolute_error': 'neg_mean_absolute_error', 'neg_mean_absolute_error': 'neg_mean_absolute_error'}
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global NumberofscoringMetrics
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NumberofscoringMetrics = len(scoring)
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global loopFeatures
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loopFeatures = 2
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global factors
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factors = [1,1,1,1,1]
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global results
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results = []
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global resultsMetrics
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resultsMetrics = []
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global parametersSelData
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parametersSelData = []
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global target_names
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target_names = []
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DataRawLength = -1
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data = json.loads(fileName)
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if data['fileName'] == 'BreastC':
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CollectionDB = mongo.db.BreastC.find()
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elif data['fileName'] == 'DiabetesC':
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CollectionDB = mongo.db.DiabetesC.find()
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else:
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CollectionDB = mongo.db.IrisC.find()
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DataResultsRaw = []
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for index, item in enumerate(CollectionDB):
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item['_id'] = str(item['_id'])
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item['InstanceID'] = index
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DataResultsRaw.append(item)
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DataRawLength = len(DataResultsRaw)
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DataSetSelection()
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return 'Everything is okay'
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# Sent data to client
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@app.route('/data/ClientRequest', methods=["GET", "POST"])
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def CollectionData():
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json.dumps(DataResultsRaw)
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response = {
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'Collection': DataResultsRaw
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}
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return jsonify(response)
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def DataSetSelection():
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DataResults = copy.deepcopy(DataResultsRaw)
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for dictionary in DataResultsRaw:
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for key in dictionary.keys():
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if (key.find('*') != -1):
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target = key
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continue
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continue
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DataResultsRaw.sort(key=lambda x: x[target], reverse=True)
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DataResults.sort(key=lambda x: x[target], reverse=True)
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for dictionary in DataResults:
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del dictionary['_id']
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del dictionary['InstanceID']
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del dictionary[target]
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global AllTargets
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global target_names
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AllTargets = [o[target] for o in DataResultsRaw]
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AllTargetsFloatValues = []
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previous = None
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Class = 0
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for i, value in enumerate(AllTargets):
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if (i == 0):
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previous = value
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target_names.append(value)
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if (value == previous):
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AllTargetsFloatValues.append(Class)
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else:
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Class = Class + 1
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target_names.append(value)
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AllTargetsFloatValues.append(Class)
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previous = value
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ArrayDataResults = pd.DataFrame.from_dict(DataResults)
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global XData, yData, RANDOM_SEED
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XData, yData = ArrayDataResults, AllTargetsFloatValues
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global XDataStored, yDataStored
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XDataStored = XData.copy()
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yDataStored = yData.copy()
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callPreResults()
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warnings.simplefilter('ignore')
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return 'Everything is okay'
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# Sending each model's results to frontend
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@app.route('/data/requestDataSpaceResultsAfterDataManipulation', methods=["GET", "POST"])
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def SendDataSpaceResultsAfterDataSpaceManipul():
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callPreResults()
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global preResults
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response = {
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'DataResults': preResults,
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}
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return jsonify(response)
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def callPreResults():
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global XData
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global yData
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global target_names
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DataSpaceRes = FunTsne(XData)
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DataSpaceListRes = DataSpaceRes.tolist()
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XDataJSONEntireSetRes = XData.to_json(orient='records')
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global preResults
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preResults = []
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preResults.append(json.dumps(target_names)) # Position: 0
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preResults.append(json.dumps(DataSpaceListRes)) # Position: 1
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preResults.append(json.dumps(XDataJSONEntireSetRes)) # Position: 2
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preResults.append(json.dumps(yData)) # Position: 3
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preResults.append(json.dumps(AllTargets)) # Position: 4
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# Sending each model's results to frontend
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@app.route('/data/requestDataSpaceResults', methods=["GET", "POST"])
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def SendDataSpaceResults():
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global preResults
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response = {
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'preDataResults': preResults,
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}
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return jsonify(response)
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# Main function
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if __name__ == '__main__':
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app.run()
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# Debugging and mirroring client
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@app.route('/', defaults={'path': ''})
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@app.route('/<path:path>')
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def catch_all(path):
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if app.debug:
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return requests.get('http://localhost:8080/{}'.format(path)).text
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return render_template("index.html")
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# This block of code is for server computations
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def column_index(df, query_cols):
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cols = df.columns.values
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sidx = np.argsort(cols)
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return sidx[np.searchsorted(cols,query_cols,sorter=sidx)].tolist()
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def class_feature_importance(X, Y, feature_importances):
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N, M = X.shape
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X = scale(X)
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out = {}
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for c in set(Y):
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out[c] = dict(
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zip(range(N), np.mean(X[Y==c, :], axis=0)*feature_importances)
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)
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return out
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# Initialize every model for each algorithm
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@cross_origin(origin='localhost',headers=['Content-Type','Authorization'])
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@app.route('/data/ServerRequestSelParameters', methods=["GET", "POST"])
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def RetrieveModel():
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# get the models from the frontend
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RetrievedModel = request.get_data().decode('utf8').replace("'", '"')
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RetrievedModel = json.loads(RetrievedModel)
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global algorithms
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algorithms = RetrievedModel['Algorithms']
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global XData
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global yData
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# loop through the algorithms
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global allParametersPerformancePerModel
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for eachAlgor in algorithms:
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if (eachAlgor) == 'KNN':
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clf = KNeighborsClassifier()
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params = {'n_neighbors': list(range(1, 25)), 'weights': ['uniform', 'distance'], 'algorithm': ['brute', 'kd_tree', 'ball_tree'], 'metric': ['chebyshev', 'manhattan', 'euclidean', 'minkowski']}
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AlgorithmsIDsEnd = 0
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else:
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clf = RandomForestClassifier()
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params = {'n_estimators': list(range(40, 120)), 'criterion': ['gini', 'entropy']}
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AlgorithmsIDsEnd = 576
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allParametersPerformancePerModel = GridSearchForModels(XData, yData, clf, params, eachAlgor, factors, AlgorithmsIDsEnd)
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# call the function that sends the results to the frontend
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SendEachClassifiersPerformanceToVisualize()
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return 'Everything Okay'
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location = './cachedir'
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memory = Memory(location, verbose=0)
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# calculating for all algorithms and models the performance and other results
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@memory.cache
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def GridSearchForModels(XData, yData, clf, params, eachAlgor, factors, AlgorithmsIDsEnd):
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# instantiate spark session
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spark = (
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SparkSession
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.builder
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.getOrCreate()
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)
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sc = spark.sparkContext
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# this is the grid we use to train the models
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grid = DistGridSearchCV(
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estimator=clf, param_grid=params,
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sc=sc, cv=crossValidation, refit='accuracy', scoring=scoring,
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verbose=0, n_jobs=-1)
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# fit and extract the probabilities
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grid.fit(XData, yData)
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# process the results
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cv_results = []
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cv_results.append(grid.cv_results_)
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df_cv_results = pd.DataFrame.from_dict(cv_results)
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# number of models stored
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number_of_models = len(df_cv_results.iloc[0][0])
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# initialize results per row
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df_cv_results_per_row = []
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# loop through number of models
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modelsIDs = []
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for i in range(number_of_models):
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modelsIDs.append(AlgorithmsIDsEnd+i)
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# initialize results per item
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df_cv_results_per_item = []
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for column in df_cv_results.iloc[0]:
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df_cv_results_per_item.append(column[i])
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df_cv_results_per_row.append(df_cv_results_per_item)
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# store the results into a pandas dataframe
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df_cv_results_classifiers = pd.DataFrame(data = df_cv_results_per_row, columns= df_cv_results.columns)
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# copy and filter in order to get only the metrics
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metrics = df_cv_results_classifiers.copy()
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metrics = metrics.filter(['mean_test_accuracy','mean_test_f1_macro','mean_test_precision','mean_test_recall','mean_test_jaccard'])
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# control the factors
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sumperModel = []
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for index, row in metrics.iterrows():
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rowSum = 0
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lengthFactors = NumberofscoringMetrics
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for loop,elements in enumerate(row):
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lengthFactors = lengthFactors - 1 + factors[loop]
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rowSum = elements*factors[loop] + rowSum
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if lengthFactors is 0:
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sumperModel = 0
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else:
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sumperModel.append(rowSum/lengthFactors)
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# summarize all models metrics
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summarizedMetrics = pd.DataFrame(sumperModel)
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summarizedMetrics.rename(columns={0:'sum'})
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# concat parameters and performance
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parameters = pd.DataFrame(df_cv_results_classifiers['params'])
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parametersPerformancePerModel = pd.concat([summarizedMetrics, parameters], axis=1)
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parametersPerformancePerModel = parametersPerformancePerModel.to_json()
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parametersLocal = json.loads(parametersPerformancePerModel)['params'].copy()
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Models = []
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for index, items in enumerate(parametersLocal):
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Models.append(str(index))
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parametersLocalNew = [ parametersLocal[your_key] for your_key in Models ]
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permList = []
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PerFeatureAccuracy = []
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PerFeatureAccuracyAll = []
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PerClassMetric = []
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perModelProb = []
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for eachModelParameters in parametersLocalNew:
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clf.set_params(**eachModelParameters)
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perm = PermutationImportance(clf, cv = None, refit = True, n_iter = 25).fit(XData, yData)
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permList.append(perm.feature_importances_)
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n_feats = XData.shape[1]
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PerFeatureAccuracy = []
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for i in range(n_feats):
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scores = model_selection.cross_val_score(clf, XData.values[:, i].reshape(-1, 1), yData, cv=crossValidation)
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PerFeatureAccuracy.append(scores.mean())
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PerFeatureAccuracyAll.append(PerFeatureAccuracy)
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clf.fit(XData, yData)
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yPredict = clf.predict(XData)
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# retrieve target names (class names)
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PerClassMetric.append(classification_report(yData, yPredict, target_names=target_names, digits=2, output_dict=True))
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yPredictProb = clf.predict_proba(XData)
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perModelProb.append(yPredictProb.tolist())
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perModelProbPandas = pd.DataFrame(perModelProb)
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perModelProbPandas = perModelProbPandas.to_json()
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PerClassMetricPandas = pd.DataFrame(PerClassMetric)
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del PerClassMetricPandas['accuracy']
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del PerClassMetricPandas['macro avg']
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del PerClassMetricPandas['weighted avg']
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PerClassMetricPandas = PerClassMetricPandas.to_json()
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perm_imp_eli5PD = pd.DataFrame(permList)
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perm_imp_eli5PD = perm_imp_eli5PD.to_json()
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PerFeatureAccuracyPandas = pd.DataFrame(PerFeatureAccuracyAll)
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PerFeatureAccuracyPandas = PerFeatureAccuracyPandas.to_json()
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bestfeatures = SelectKBest(score_func=chi2, k='all')
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fit = bestfeatures.fit(XData,yData)
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dfscores = pd.DataFrame(fit.scores_)
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dfcolumns = pd.DataFrame(XData.columns)
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featureScores = pd.concat([dfcolumns,dfscores],axis=1)
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featureScores.columns = ['Specs','Score'] #naming the dataframe columns
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featureScores = featureScores.to_json()
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# gather the results and send them back
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results.append(modelsIDs) # Position: 0 and so on
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results.append(parametersPerformancePerModel) # Position: 1 and so on
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results.append(PerClassMetricPandas) # Position: 2 and so on
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results.append(PerFeatureAccuracyPandas) # Position: 3 and so on
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results.append(perm_imp_eli5PD) # Position: 4 and so on
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results.append(featureScores) # Position: 5 and so on
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metrics = metrics.to_json()
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results.append(metrics) # Position: 6 and so on
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results.append(perModelProbPandas) # Position: 7 and so on
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return results
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# Sending each model's results to frontend
|
|
@app.route('/data/PerformanceForEachModel', methods=["GET", "POST"])
|
|
def SendEachClassifiersPerformanceToVisualize():
|
|
response = {
|
|
'PerformancePerModel': allParametersPerformancePerModel,
|
|
}
|
|
return jsonify(response)
|
|
|
|
def Remove(duplicate):
|
|
final_list = []
|
|
for num in duplicate:
|
|
if num not in final_list:
|
|
if (isinstance(num, float)):
|
|
if np.isnan(num):
|
|
pass
|
|
else:
|
|
final_list.append(int(num))
|
|
else:
|
|
final_list.append(num)
|
|
return final_list
|
|
|
|
# Retrieve data from client
|
|
@cross_origin(origin='localhost',headers=['Content-Type','Authorization'])
|
|
@app.route('/data/SendBrushedParam', methods=["GET", "POST"])
|
|
def RetrieveModelsParam():
|
|
RetrieveModelsPar = request.get_data().decode('utf8').replace("'", '"')
|
|
RetrieveModelsPar = json.loads(RetrieveModelsPar)
|
|
|
|
counter1 = 0
|
|
counter2 = 0
|
|
global KNNModels
|
|
KNNModels = []
|
|
global RFModels
|
|
RFModels = []
|
|
global algorithmsList
|
|
algorithmsList = RetrieveModelsPar['algorithms']
|
|
|
|
for index, items in enumerate(algorithmsList):
|
|
if (items == 'KNN'):
|
|
counter1 = counter1 + 1
|
|
KNNModels.append(int(RetrieveModelsPar['models'][index]))
|
|
else:
|
|
counter2 = counter2 + 1
|
|
RFModels.append(int(RetrieveModelsPar['models'][index]))
|
|
|
|
return 'Everything Okay'
|
|
|
|
# Retrieve data from client
|
|
@cross_origin(origin='localhost',headers=['Content-Type','Authorization'])
|
|
@app.route('/data/factors', methods=["GET", "POST"])
|
|
def RetrieveFactors():
|
|
Factors = request.get_data().decode('utf8').replace("'", '"')
|
|
FactorsInt = json.loads(Factors)
|
|
factors = FactorsInt['Factors']
|
|
|
|
global sumPerClassifierSel
|
|
global ModelSpaceMDSNew
|
|
global ModelSpaceTSNENew
|
|
global metricsPerModel
|
|
sumPerClassifierSel = []
|
|
sumPerClassifierSel = preProcsumPerMetric(factors)
|
|
ModelSpaceMDSNew = []
|
|
ModelSpaceTSNENew = []
|
|
loopThroughMetrics = PreprocessingMetrics()
|
|
metricsPerModel = preProcMetricsAllAndSel()
|
|
flagLocal = 0
|
|
countRemovals = 0
|
|
for l,el in enumerate(factors):
|
|
if el is 0:
|
|
loopThroughMetrics.drop(loopThroughMetrics.columns[[l-countRemovals]], axis=1, inplace=True)
|
|
countRemovals = countRemovals + 1
|
|
flagLocal = 1
|
|
if flagLocal is 1:
|
|
ModelSpaceMDSNew = FunMDS(loopThroughMetrics)
|
|
ModelSpaceTSNENew = FunTsne(loopThroughMetrics)
|
|
ModelSpaceTSNENew = ModelSpaceTSNENew.tolist()
|
|
return 'Everything Okay'
|
|
|
|
@app.route('/data/UpdateOverv', methods=["GET", "POST"])
|
|
def UpdateOverview():
|
|
ResultsUpdateOverview = []
|
|
ResultsUpdateOverview.append(sumPerClassifierSel)
|
|
ResultsUpdateOverview.append(ModelSpaceMDSNew)
|
|
ResultsUpdateOverview.append(ModelSpaceTSNENew)
|
|
ResultsUpdateOverview.append(metricsPerModel)
|
|
response = {
|
|
'Results': ResultsUpdateOverview
|
|
}
|
|
return jsonify(response)
|
|
|
|
def PreprocessingMetrics():
|
|
dicKNN = json.loads(allParametersPerformancePerModel[6])
|
|
dicRF = json.loads(allParametersPerformancePerModel[14])
|
|
dfKNN = pd.DataFrame.from_dict(dicKNN)
|
|
dfKNN.index = dfKNN.index.astype(int)
|
|
dfKNNFiltered = dfKNN.loc[KNNModels, :]
|
|
dfRF = pd.DataFrame.from_dict(dicRF)
|
|
dfRF.index = dfRF.index.astype(int) + 576
|
|
dfRFFiltered = dfRF.loc[RFModels, :]
|
|
df_concatMetrics = pd.concat([dfKNNFiltered, dfRFFiltered])
|
|
return df_concatMetrics
|
|
|
|
def PreprocessingPred():
|
|
dicKNN = json.loads(allParametersPerformancePerModel[7])
|
|
dicRF = json.loads(allParametersPerformancePerModel[15])
|
|
dfKNN = pd.DataFrame.from_dict(dicKNN)
|
|
dfKNN.index = dfKNN.index.astype(int)
|
|
dfKNNFiltered = dfKNN.loc[KNNModels, :]
|
|
dfRF = pd.DataFrame.from_dict(dicRF)
|
|
dfRF.index = dfRF.index.astype(int) + 576
|
|
dfRFFiltered = dfRF.loc[RFModels, :]
|
|
df_concatProbs = pd.concat([dfKNNFiltered, dfRFFiltered])
|
|
predictions = []
|
|
for column, content in df_concatProbs.items():
|
|
el = [sum(x)/len(x) for x in zip(*content)]
|
|
predictions.append(el)
|
|
|
|
return predictions
|
|
|
|
def PreprocessingPredUpdate(Models):
|
|
Models = json.loads(Models)
|
|
ModelsList= []
|
|
for loop in Models['ClassifiersList']:
|
|
temp = [int(s) for s in re.findall(r'\b\d+\b', loop)]
|
|
ModelsList.append(temp[0])
|
|
dicKNN = json.loads(allParametersPerformancePerModel[7])
|
|
dicRF = json.loads(allParametersPerformancePerModel[15])
|
|
dfKNN = pd.DataFrame.from_dict(dicKNN)
|
|
dfKNN.index = dfKNN.index.astype(int)
|
|
dfKNNFiltered = dfKNN.loc[KNNModels, :]
|
|
dfRF = pd.DataFrame.from_dict(dicRF)
|
|
dfRF.index = dfRF.index.astype(int) + 576
|
|
dfRFFiltered = dfRF.loc[RFModels, :]
|
|
df_concatProbs = pd.concat([dfKNNFiltered, dfRFFiltered])
|
|
listProbs = df_concatProbs.index.values.tolist()
|
|
deletedElements = 0
|
|
for index, element in enumerate(listProbs):
|
|
if element in ModelsList:
|
|
index = index - deletedElements
|
|
df_concatProbs = df_concatProbs.drop(df_concatProbs.index[index])
|
|
deletedElements = deletedElements + 1
|
|
df_concatProbsCleared = df_concatProbs
|
|
listIDsRemaining = df_concatProbsCleared.index.values.tolist()
|
|
|
|
predictionsAll = PreprocessingPred()
|
|
PredictionSpaceAll = FunTsne(predictionsAll)
|
|
|
|
predictionsSel = []
|
|
for column, content in df_concatProbsCleared.items():
|
|
el = [sum(x)/len(x) for x in zip(*content)]
|
|
predictionsSel.append(el)
|
|
|
|
PredictionSpaceSel = FunTsne(predictionsSel)
|
|
|
|
#ModelSpaceMDSNewComb = [list(a) for a in zip(PredictionSpaceAll[0], ModelSpaceMDS[1])]
|
|
|
|
#ModelSpaceMDSNewSel = FunMDS(df_concatMetrics)
|
|
#ModelSpaceMDSNewSelComb = [list(a) for a in zip(ModelSpaceMDSNewSel[0], ModelSpaceMDSNewSel[1])]
|
|
|
|
mtx2PredFinal = []
|
|
mtx1Pred, mtx2Pred, disparity2 = procrustes(PredictionSpaceAll, PredictionSpaceSel)
|
|
|
|
a1, b1 = zip(*mtx2Pred)
|
|
mtx2PredFinal.append(a1)
|
|
mtx2PredFinal.append(b1)
|
|
return [mtx2PredFinal,listIDsRemaining]
|
|
|
|
def PreprocessingParam():
|
|
dicKNN = json.loads(allParametersPerformancePerModel[1])
|
|
dicRF = json.loads(allParametersPerformancePerModel[9])
|
|
dicKNN = dicKNN['params']
|
|
dicRF = dicRF['params']
|
|
dfKNN = pd.DataFrame.from_dict(dicKNN)
|
|
dfKNN = dfKNN.T
|
|
dfKNN.index = dfKNN.index.astype(int)
|
|
dfKNNFiltered = dfKNN.loc[KNNModels, :]
|
|
dfRF = pd.DataFrame.from_dict(dicRF)
|
|
dfRF = dfRF.T
|
|
dfRF.index = dfRF.index.astype(int) + 576
|
|
dfRFFiltered = dfRF.loc[RFModels, :]
|
|
df_params = pd.concat([dfKNNFiltered, dfRFFiltered])
|
|
return df_params
|
|
|
|
def PreprocessingParamSep():
|
|
dicKNN = json.loads(allParametersPerformancePerModel[1])
|
|
dicRF = json.loads(allParametersPerformancePerModel[9])
|
|
dicKNN = dicKNN['params']
|
|
dicRF = dicRF['params']
|
|
dfKNN = pd.DataFrame.from_dict(dicKNN)
|
|
dfKNN = dfKNN.T
|
|
dfKNN.index = dfKNN.index.astype(int)
|
|
dfKNNFiltered = dfKNN.loc[KNNModels, :]
|
|
dfRF = pd.DataFrame.from_dict(dicRF)
|
|
dfRF = dfRF.T
|
|
dfRF.index = dfRF.index.astype(int) + 576
|
|
dfRFFiltered = dfRF.loc[RFModels, :]
|
|
return [dfKNNFiltered,dfRFFiltered]
|
|
|
|
def preProcessPerClassM():
|
|
dicKNN = json.loads(allParametersPerformancePerModel[2])
|
|
dicRF = json.loads(allParametersPerformancePerModel[10])
|
|
dfKNN = pd.DataFrame.from_dict(dicKNN)
|
|
dfKNN.index = dfKNN.index.astype(int)
|
|
dfKNNFiltered = dfKNN.loc[KNNModels, :]
|
|
dfRF = pd.DataFrame.from_dict(dicRF)
|
|
dfRF.index = dfRF.index.astype(int) + 576
|
|
dfRFFiltered = dfRF.loc[RFModels, :]
|
|
df_concatParams = pd.concat([dfKNNFiltered, dfRFFiltered])
|
|
return df_concatParams
|
|
|
|
def preProcessFeatAcc():
|
|
dicKNN = json.loads(allParametersPerformancePerModel[3])
|
|
dicRF = json.loads(allParametersPerformancePerModel[11])
|
|
dfKNN = pd.DataFrame.from_dict(dicKNN)
|
|
dfKNN.index = dfKNN.index.astype(int)
|
|
dfKNNFiltered = dfKNN.loc[KNNModels, :]
|
|
dfRF = pd.DataFrame.from_dict(dicRF)
|
|
dfRF.index = dfRF.index.astype(int) + 576
|
|
dfRFFiltered = dfRF.loc[RFModels, :]
|
|
df_featAcc = pd.concat([dfKNNFiltered, dfRFFiltered])
|
|
return df_featAcc
|
|
|
|
def preProcessPerm():
|
|
dicKNN = json.loads(allParametersPerformancePerModel[4])
|
|
dicRF = json.loads(allParametersPerformancePerModel[12])
|
|
dfKNN = pd.DataFrame.from_dict(dicKNN)
|
|
dfKNN.index = dfKNN.index.astype(int)
|
|
dfKNNFiltered = dfKNN.loc[KNNModels, :]
|
|
dfRF = pd.DataFrame.from_dict(dicRF)
|
|
dfRF.index = dfRF.index.astype(int) + 576
|
|
dfRFFiltered = dfRF.loc[RFModels, :]
|
|
df_perm = pd.concat([dfKNNFiltered, dfRFFiltered])
|
|
return df_perm
|
|
|
|
def preProcessFeatSc():
|
|
dicKNN = json.loads(allParametersPerformancePerModel[5])
|
|
dfKNN = pd.DataFrame.from_dict(dicKNN)
|
|
return dfKNN
|
|
|
|
def preProcsumPerMetric(factors):
|
|
sumPerClassifier = []
|
|
loopThroughMetrics = PreprocessingMetrics()
|
|
for row in loopThroughMetrics.iterrows():
|
|
rowSum = 0
|
|
lengthFactors = len(scoring)
|
|
name, values = row
|
|
for loop, elements in enumerate(values):
|
|
lengthFactors = lengthFactors - 1 + factors[loop]
|
|
rowSum = elements*factors[loop] + rowSum
|
|
if lengthFactors is 0:
|
|
sumPerClassifier = 0
|
|
else:
|
|
sumPerClassifier.append(rowSum/lengthFactors)
|
|
return sumPerClassifier
|
|
|
|
def preProcMetricsAllAndSel():
|
|
loopThroughMetrics = PreprocessingMetrics()
|
|
metricsPerModelColl = []
|
|
metricsPerModelColl.append(loopThroughMetrics['mean_test_accuracy'].sum()/loopThroughMetrics['mean_test_accuracy'].count())
|
|
metricsPerModelColl.append(loopThroughMetrics['mean_test_f1_macro'].sum()/loopThroughMetrics['mean_test_f1_macro'].count())
|
|
metricsPerModelColl.append(loopThroughMetrics['mean_test_precision'].sum()/loopThroughMetrics['mean_test_precision'].count())
|
|
metricsPerModelColl.append(loopThroughMetrics['mean_test_recall'].sum()/loopThroughMetrics['mean_test_recall'].count())
|
|
metricsPerModelColl.append(loopThroughMetrics['mean_test_jaccard'].sum()/loopThroughMetrics['mean_test_jaccard'].count())
|
|
for index, metric in enumerate(metricsPerModelColl):
|
|
metricsPerModelColl[index] = metric*factors[index]
|
|
return metricsPerModelColl
|
|
|
|
def preProceModels():
|
|
models = KNNModels + RFModels
|
|
return models
|
|
|
|
def FunMDS (data):
|
|
mds = MDS(n_components=2, random_state=RANDOM_SEED)
|
|
XTransformed = mds.fit_transform(data).T
|
|
XTransformed = XTransformed.tolist()
|
|
return XTransformed
|
|
|
|
def FunTsne (data):
|
|
tsne = TSNE(n_components=2, random_state=RANDOM_SEED).fit_transform(data)
|
|
tsne.shape
|
|
return tsne
|
|
|
|
def InitializeEnsemble():
|
|
XModels = PreprocessingMetrics()
|
|
DataSpace = FunTsne(XData)
|
|
DataSpaceList = DataSpace.tolist()
|
|
global ModelSpaceMDS
|
|
global ModelSpaceTSNE
|
|
|
|
ModelSpaceMDS = FunMDS(XModels)
|
|
ModelSpaceTSNE = FunTsne(XModels)
|
|
ModelSpaceTSNE = ModelSpaceTSNE.tolist()
|
|
|
|
PredictionProbSel = PreprocessingPred()
|
|
PredictionSpace = FunTsne(PredictionProbSel)
|
|
PredictionSpaceList = PredictionSpace.tolist()
|
|
|
|
ModelsIDs = preProceModels()
|
|
|
|
key = 0
|
|
EnsembleModel(ModelsIDs, key)
|
|
|
|
ReturnResults(ModelSpaceMDS,ModelSpaceTSNE,DataSpaceList,PredictionSpaceList)
|
|
|
|
def ReturnResults(ModelSpaceMDS,ModelSpaceTSNE,DataSpaceList,PredictionSpaceList):
|
|
|
|
global Results
|
|
global AllTargets
|
|
Results = []
|
|
|
|
parametersGen = PreprocessingParam()
|
|
PerClassMetrics = preProcessPerClassM()
|
|
FeatureAccuracy = preProcessFeatAcc()
|
|
perm_imp_eli5PDCon = preProcessPerm()
|
|
featureScoresCon = preProcessFeatSc()
|
|
metricsPerModel = preProcMetricsAllAndSel()
|
|
sumPerClassifier = preProcsumPerMetric(factors)
|
|
ModelsIDs = preProceModels()
|
|
|
|
parametersGenPD = parametersGen.to_json(orient='records')
|
|
PerClassMetrics = PerClassMetrics.to_json(orient='records')
|
|
FeatureAccuracy = FeatureAccuracy.to_json(orient='records')
|
|
perm_imp_eli5PDCon = perm_imp_eli5PDCon.to_json(orient='records')
|
|
featureScoresCon = featureScoresCon.to_json(orient='records')
|
|
XDataJSONEntireSet = XData.to_json(orient='records')
|
|
XDataJSON = XData.columns.tolist()
|
|
print(XData)
|
|
Results.append(json.dumps(sumPerClassifier)) # Position: 0
|
|
Results.append(json.dumps(ModelSpaceMDS)) # Position: 1
|
|
Results.append(json.dumps(parametersGenPD)) # Position: 2
|
|
Results.append(PerClassMetrics) # Position: 3
|
|
Results.append(json.dumps(target_names)) # Position: 4
|
|
Results.append(FeatureAccuracy) # Position: 5
|
|
Results.append(json.dumps(XDataJSON)) # Position: 6
|
|
Results.append(json.dumps(DataSpaceList)) # Position: 7
|
|
Results.append(json.dumps(PredictionSpaceList)) # Position: 8
|
|
Results.append(json.dumps(metricsPerModel)) # Position: 9
|
|
Results.append(perm_imp_eli5PDCon) # Position: 10
|
|
Results.append(featureScoresCon) # Position: 11
|
|
Results.append(json.dumps(ModelSpaceTSNE)) # Position: 12
|
|
Results.append(json.dumps(ModelsIDs)) # Position: 13
|
|
Results.append(json.dumps(XDataJSONEntireSet)) # Position: 14
|
|
Results.append(json.dumps(yData)) # Position: 15
|
|
Results.append(json.dumps(AllTargets)) # Position: 16
|
|
|
|
return Results
|
|
|
|
|
|
# Sending the overview classifiers' results to be visualized as a scatterplot
|
|
@app.route('/data/PlotClassifiers', methods=["GET", "POST"])
|
|
def SendToPlot():
|
|
while (len(DataResultsRaw) != DataRawLength):
|
|
pass
|
|
InitializeEnsemble()
|
|
response = {
|
|
'OverviewResults': Results
|
|
}
|
|
return jsonify(response)
|
|
|
|
|
|
# Retrieve data from client
|
|
@cross_origin(origin='localhost',headers=['Content-Type','Authorization'])
|
|
@app.route('/data/ServerRemoveFromStack', methods=["GET", "POST"])
|
|
def RetrieveSelClassifiersIDandRemoveFromStack():
|
|
ClassifierIDsList = request.get_data().decode('utf8').replace("'", '"')
|
|
|
|
PredictionProbSelUpdate = PreprocessingPredUpdate(ClassifierIDsList)
|
|
|
|
global resultsUpdatePredictionSpace
|
|
resultsUpdatePredictionSpace = []
|
|
resultsUpdatePredictionSpace.append(json.dumps(PredictionProbSelUpdate[0])) # Position: 0
|
|
resultsUpdatePredictionSpace.append(json.dumps(PredictionProbSelUpdate[1]))
|
|
|
|
key = 3
|
|
EnsembleModel(ClassifierIDsList, key)
|
|
|
|
return 'Everything Okay'
|
|
|
|
# Sending the overview classifiers' results to be visualized as a scatterplot
|
|
@app.route('/data/UpdatePredictionsSpace', methods=["GET", "POST"])
|
|
def SendPredBacktobeUpdated():
|
|
response = {
|
|
'UpdatePredictions': resultsUpdatePredictionSpace
|
|
}
|
|
return jsonify(response)
|
|
|
|
# Retrieve data from client
|
|
@cross_origin(origin='localhost',headers=['Content-Type','Authorization'])
|
|
@app.route('/data/ServerRequestSelPoin', methods=["GET", "POST"])
|
|
def RetrieveSelClassifiersID():
|
|
ClassifierIDsList = request.get_data().decode('utf8').replace("'", '"')
|
|
ComputeMetricsForSel(ClassifierIDsList)
|
|
|
|
key = 1
|
|
EnsembleModel(ClassifierIDsList, key)
|
|
return 'Everything Okay'
|
|
|
|
def ComputeMetricsForSel(Models):
|
|
Models = json.loads(Models)
|
|
MetricsAlltoSel = PreprocessingMetrics()
|
|
listofModels = []
|
|
for loop in Models['ClassifiersList']:
|
|
temp = [int(s) for s in re.findall(r'\b\d+\b', loop)]
|
|
listofModels.append(temp[0])
|
|
MetricsAlltoSel = MetricsAlltoSel.loc[listofModels,:]
|
|
|
|
global metricsPerModelCollSel
|
|
metricsPerModelCollSel = []
|
|
metricsPerModelCollSel.append(MetricsAlltoSel['mean_test_accuracy'].sum()/MetricsAlltoSel['mean_test_accuracy'].count())
|
|
metricsPerModelCollSel.append(MetricsAlltoSel['mean_test_f1_macro'].sum()/MetricsAlltoSel['mean_test_f1_macro'].count())
|
|
metricsPerModelCollSel.append(MetricsAlltoSel['mean_test_precision'].sum()/MetricsAlltoSel['mean_test_precision'].count())
|
|
metricsPerModelCollSel.append(MetricsAlltoSel['mean_test_recall'].sum()/MetricsAlltoSel['mean_test_recall'].count())
|
|
metricsPerModelCollSel.append(MetricsAlltoSel['mean_test_jaccard'].sum()/MetricsAlltoSel['mean_test_jaccard'].count())
|
|
for index, metric in enumerate(metricsPerModelCollSel):
|
|
metricsPerModelCollSel[index] = metric*factors[index]
|
|
|
|
return 'okay'
|
|
|
|
# Sending the overview classifiers' results to be visualized as a scatterplot
|
|
@app.route('/data/BarChartSelectedModels', methods=["GET", "POST"])
|
|
def SendToUpdateBarChart():
|
|
response = {
|
|
'SelectedMetricsForModels': metricsPerModelCollSel
|
|
}
|
|
return jsonify(response)
|
|
|
|
# Retrieve data from client
|
|
@cross_origin(origin='localhost',headers=['Content-Type','Authorization'])
|
|
@app.route('/data/ServerRequestDataPoint', methods=["GET", "POST"])
|
|
def RetrieveSelDataPoints():
|
|
|
|
DataPointsSel = request.get_data().decode('utf8').replace("'", '"')
|
|
DataPointsSelClear = json.loads(DataPointsSel)
|
|
listofDataPoints = []
|
|
for loop in DataPointsSelClear['DataPointsSel']:
|
|
temp = [int(s) for s in re.findall(r'\b\d+\b', loop)]
|
|
listofDataPoints.append(temp[0])
|
|
|
|
paramsListSepPD = []
|
|
paramsListSepPD = PreprocessingParamSep()
|
|
|
|
paramsListSeptoDicKNN = paramsListSepPD[0].to_dict(orient='list')
|
|
paramsListSeptoDicRF = paramsListSepPD[1].to_dict(orient='list')
|
|
|
|
RetrieveParamsCleared = {}
|
|
RetrieveParamsClearedListKNN = []
|
|
for key, value in paramsListSeptoDicKNN.items():
|
|
withoutDuplicates = Remove(value)
|
|
RetrieveParamsCleared[key] = withoutDuplicates
|
|
RetrieveParamsClearedListKNN.append(RetrieveParamsCleared)
|
|
|
|
RetrieveParamsCleared = {}
|
|
RetrieveParamsClearedListRF = []
|
|
for key, value in paramsListSeptoDicRF.items():
|
|
withoutDuplicates = Remove(value)
|
|
RetrieveParamsCleared[key] = withoutDuplicates
|
|
RetrieveParamsClearedListRF.append(RetrieveParamsCleared)
|
|
|
|
if (len(paramsListSeptoDicKNN['n_neighbors']) is 0):
|
|
RetrieveParamsClearedListKNN = []
|
|
|
|
if (len(paramsListSeptoDicRF['n_estimators']) is 0):
|
|
RetrieveParamsClearedListRF = []
|
|
|
|
for eachAlgor in algorithms:
|
|
if (eachAlgor) == 'KNN':
|
|
clf = KNeighborsClassifier()
|
|
#params = {'n_neighbors': list(range(1, 25)), 'weights': ['uniform', 'distance'], 'algorithm': ['brute', 'kd_tree', 'ball_tree'], 'metric': ['chebyshev', 'manhattan', 'euclidean', 'minkowski']}
|
|
params = RetrieveParamsClearedListKNN
|
|
AlgorithmsIDsEnd = 0
|
|
else:
|
|
clf = RandomForestClassifier()
|
|
#params = {'n_estimators': list(range(40, 120)), 'criterion': ['gini', 'entropy']}
|
|
params = RetrieveParamsClearedListRF
|
|
AlgorithmsIDsEnd = 576
|
|
metricsSelList = GridSearchSel(clf, params, factors, AlgorithmsIDsEnd, listofDataPoints)
|
|
if (len(metricsSelList[0]) != 0 and len(metricsSelList[1]) != 0):
|
|
|
|
dicKNN = json.loads(metricsSelList[0])
|
|
dfKNN = pd.DataFrame.from_dict(dicKNN)
|
|
parametersSelDataPD = parametersSelData[0].apply(pd.Series)
|
|
set_diff_df = pd.concat([parametersSelDataPD, paramsListSepPD[0], paramsListSepPD[0]]).drop_duplicates(keep=False)
|
|
set_diff_df = set_diff_df.index.tolist()
|
|
if (len(set_diff_df) == 0):
|
|
dfKNNCleared = dfKNN
|
|
else:
|
|
dfKNNCleared = dfKNN.drop(dfKNN.index[set_diff_df])
|
|
|
|
dicRF = json.loads(metricsSelList[1])
|
|
dfRF = pd.DataFrame.from_dict(dicRF)
|
|
parametersSelDataPD = parametersSelData[1].apply(pd.Series)
|
|
set_diff_df = pd.concat([parametersSelDataPD, paramsListSepPD[1], paramsListSepPD[1]]).drop_duplicates(keep=False)
|
|
set_diff_df = set_diff_df.index.tolist()
|
|
if (len(set_diff_df) == 0):
|
|
dfRFCleared = dfRF
|
|
else:
|
|
dfRFCleared = dfRF.drop(dfRF.index[set_diff_df])
|
|
|
|
df_concatMetrics = pd.concat([dfKNNCleared, dfRFCleared])
|
|
else:
|
|
if (len(metricsSelList[0]) != 0):
|
|
dicKNN = json.loads(metricsSelList[0])
|
|
dfKNN = pd.DataFrame.from_dict(dicKNN)
|
|
parametersSelDataPD = parametersSelData[0].apply(pd.Series)
|
|
set_diff_df = pd.concat([parametersSelDataPD, paramsListSepPD[0], paramsListSepPD[0]]).drop_duplicates(keep=False)
|
|
set_diff_df = set_diff_df.index.tolist()
|
|
if (len(set_diff_df) == 0):
|
|
dfKNNCleared = dfKNN
|
|
else:
|
|
dfKNNCleared = dfKNN.drop(dfKNN.index[set_diff_df])
|
|
df_concatMetrics = dfKNNCleared
|
|
else:
|
|
dicRF = json.loads(metricsSelList[1])
|
|
dfRF = pd.DataFrame.from_dict(dicRF)
|
|
parametersSelDataPD = parametersSelData[1].apply(pd.Series)
|
|
set_diff_df = pd.concat([parametersSelDataPD, paramsListSepPD[1], paramsListSepPD[1]]).drop_duplicates(keep=False)
|
|
set_diff_df = set_diff_df.index.tolist()
|
|
if (len(set_diff_df) == 0):
|
|
dfRFCleared = dfRF
|
|
else:
|
|
dfRFCleared = dfRF.drop(dfRF.index[set_diff_df])
|
|
df_concatMetrics = dfRFCleared
|
|
|
|
|
|
|
|
global sumPerClassifierSelUpdate
|
|
sumPerClassifierSelUpdate = []
|
|
sumPerClassifierSelUpdate = preProcsumPerMetricAccordingtoData(factors, df_concatMetrics)
|
|
|
|
ModelSpaceMDSNewComb = [list(a) for a in zip(ModelSpaceMDS[0], ModelSpaceMDS[1])]
|
|
|
|
ModelSpaceMDSNewSel = FunMDS(df_concatMetrics)
|
|
|
|
ModelSpaceMDSNewSelComb = [list(a) for a in zip(ModelSpaceMDSNewSel[0], ModelSpaceMDSNewSel[1])]
|
|
|
|
global mt2xFinal
|
|
mt2xFinal = []
|
|
mtx1, mtx2, disparity = procrustes(ModelSpaceMDSNewComb, ModelSpaceMDSNewSelComb)
|
|
a, b = zip(*mtx2)
|
|
mt2xFinal.append(a)
|
|
mt2xFinal.append(b)
|
|
|
|
return 'Everything Okay'
|
|
|
|
|
|
def GridSearchSel(clf, params, factors, AlgorithmsIDsEnd, DataPointsSel):
|
|
if (len(params) == 0):
|
|
resultsMetrics.append([]) # Position: 0 and so on
|
|
parametersSelData.append([])
|
|
else:
|
|
# instantiate spark session
|
|
spark = (
|
|
SparkSession
|
|
.builder
|
|
.getOrCreate()
|
|
)
|
|
sc = spark.sparkContext
|
|
|
|
XDatasubset = XData.loc[DataPointsSel,:]
|
|
yDataSubset = [yData[i] for i in DataPointsSel]
|
|
# this is the grid we use to train the models
|
|
grid = DistGridSearchCV(
|
|
estimator=clf, param_grid=params,
|
|
sc=sc, cv=crossValidation, refit='accuracy', scoring=scoring,
|
|
verbose=0, n_jobs=-1)
|
|
|
|
# fit and extract the probabilities
|
|
grid.fit(XDatasubset, yDataSubset)
|
|
|
|
# process the results
|
|
cv_results = []
|
|
cv_results.append(grid.cv_results_)
|
|
df_cv_results = pd.DataFrame.from_dict(cv_results)
|
|
|
|
# number of models stored
|
|
number_of_models = len(df_cv_results.iloc[0][0])
|
|
|
|
# initialize results per row
|
|
df_cv_results_per_row = []
|
|
|
|
# loop through number of models
|
|
modelsIDs = []
|
|
for i in range(number_of_models):
|
|
modelsIDs.append(AlgorithmsIDsEnd+i)
|
|
# initialize results per item
|
|
df_cv_results_per_item = []
|
|
for column in df_cv_results.iloc[0]:
|
|
df_cv_results_per_item.append(column[i])
|
|
df_cv_results_per_row.append(df_cv_results_per_item)
|
|
|
|
# store the results into a pandas dataframe
|
|
df_cv_results_classifiers = pd.DataFrame(data = df_cv_results_per_row, columns= df_cv_results.columns)
|
|
|
|
parametersSelData.append(df_cv_results_classifiers['params'])
|
|
|
|
# copy and filter in order to get only the metrics
|
|
metrics = df_cv_results_classifiers.copy()
|
|
metrics = metrics.filter(['mean_test_accuracy','mean_test_f1_macro','mean_test_precision','mean_test_recall','mean_test_jaccard'])
|
|
metrics = metrics.to_json()
|
|
|
|
resultsMetrics.append(metrics) # Position: 0 and so on
|
|
|
|
return resultsMetrics
|
|
|
|
|
|
def preProcsumPerMetricAccordingtoData(factors, loopThroughMetrics):
|
|
sumPerClassifier = []
|
|
for row in loopThroughMetrics.iterrows():
|
|
rowSum = 0
|
|
lengthFactors = len(scoring)
|
|
name, values = row
|
|
for loop, elements in enumerate(values):
|
|
lengthFactors = lengthFactors - 1 + factors[loop]
|
|
rowSum = elements*factors[loop] + rowSum
|
|
if lengthFactors is 0:
|
|
sumPerClassifier = 0
|
|
else:
|
|
sumPerClassifier.append(rowSum/lengthFactors)
|
|
return sumPerClassifier
|
|
|
|
# Sending the overview classifiers' results to be visualized as a scatterplot
|
|
@app.route('/data/ServerSentDataPointsModel', methods=["GET", "POST"])
|
|
def SendDataPointsModels():
|
|
ResultsUpdate = []
|
|
global sumPerClassifierSelUpdate
|
|
sumPerClassifierSelUpdateJSON = json.dumps(sumPerClassifierSelUpdate)
|
|
ResultsUpdate.append(sumPerClassifierSelUpdateJSON)
|
|
global mt2xFinal
|
|
mt2xFinalJSON = json.dumps(mt2xFinal)
|
|
ResultsUpdate.append(mt2xFinalJSON)
|
|
response = {
|
|
'DataPointsModels': ResultsUpdate
|
|
}
|
|
return jsonify(response)
|
|
|
|
# Retrieve data from client
|
|
@cross_origin(origin='localhost',headers=['Content-Type','Authorization'])
|
|
@app.route('/data/FeaturesSelection', methods=["GET", "POST"])
|
|
def FeatureSelPerModel():
|
|
global featureSelection
|
|
featureSelection = request.get_data().decode('utf8').replace("'", '"')
|
|
featureSelection = json.loads(featureSelection)
|
|
key = 2
|
|
ModelsIDs = preProceModels()
|
|
EnsembleModel(ModelsIDs, key)
|
|
return 'Everything Okay'
|
|
|
|
def EnsembleModel(Models, keyRetrieved):
|
|
global scores
|
|
scores = []
|
|
|
|
global all_classifiersSelection
|
|
all_classifiersSelection = []
|
|
|
|
global XData
|
|
global yData
|
|
|
|
lr = LogisticRegression()
|
|
|
|
if (keyRetrieved == 0):
|
|
global all_classifiers
|
|
all_classifiers = []
|
|
columnsInit = []
|
|
columnsInit = [XData.columns.get_loc(c) for c in XData.columns if c in XData]
|
|
|
|
temp = json.loads(allParametersPerformancePerModel[1])
|
|
dfParamKNN = pd.DataFrame.from_dict(temp)
|
|
dfParamKNNFilt = dfParamKNN.iloc[:,1]
|
|
|
|
for eachelem in KNNModels:
|
|
arg = dfParamKNNFilt[eachelem]
|
|
all_classifiers.append(make_pipeline(ColumnSelector(cols=columnsInit), KNeighborsClassifier().set_params(**arg)))
|
|
|
|
temp = json.loads(allParametersPerformancePerModel[9])
|
|
dfParamRF = pd.DataFrame.from_dict(temp)
|
|
dfParamRFFilt = dfParamRF.iloc[:,1]
|
|
for eachelem in RFModels:
|
|
arg = dfParamRFFilt[eachelem-576]
|
|
all_classifiers.append(make_pipeline(ColumnSelector(cols=columnsInit), RandomForestClassifier().set_params(**arg)))
|
|
|
|
global sclfStack
|
|
sclfStack = 0
|
|
|
|
global sclf
|
|
sclf = 0
|
|
sclf = StackingCVClassifier(classifiers=all_classifiers,
|
|
use_probas=True,
|
|
meta_classifier=lr,
|
|
random_state=RANDOM_SEED,
|
|
n_jobs = -1)
|
|
sclfStack = sclf
|
|
elif (keyRetrieved == 1):
|
|
Models = json.loads(Models)
|
|
ModelsAll = preProceModels()
|
|
for index, modHere in enumerate(ModelsAll):
|
|
flag = 0
|
|
for loop in Models['ClassifiersList']:
|
|
temp = [int(s) for s in re.findall(r'\b\d+\b', loop)]
|
|
if (int(temp[0]) == int(modHere)):
|
|
flag = 1
|
|
if (flag is 1):
|
|
all_classifiersSelection.append(all_classifiers[index])
|
|
|
|
sclf = StackingCVClassifier(classifiers=all_classifiersSelection,
|
|
use_probas=True,
|
|
meta_classifier=lr,
|
|
random_state=RANDOM_SEED,
|
|
n_jobs = -1)
|
|
elif (keyRetrieved == 2):
|
|
# fix this part!
|
|
if (len(all_classifiersSelection) == 0):
|
|
all_classifiers = []
|
|
columnsInit = []
|
|
|
|
temp = json.loads(allParametersPerformancePerModel[1])
|
|
dfParamKNN = pd.DataFrame.from_dict(temp)
|
|
dfParamKNNFilt = dfParamKNN.iloc[:,1]
|
|
flag = 0
|
|
for index, eachelem in enumerate(KNNModels):
|
|
arg = dfParamKNNFilt[eachelem]
|
|
all_classifiers.append(make_pipeline(ColumnSelector(cols=featureSelection['featureSelection'][index]), KNeighborsClassifier().set_params(**arg)))
|
|
store = index
|
|
flag = 1
|
|
|
|
temp = json.loads(allParametersPerformancePerModel[9])
|
|
dfParamRF = pd.DataFrame.from_dict(temp)
|
|
dfParamRFFilt = dfParamRF.iloc[:,1]
|
|
if (flag == 0):
|
|
store = 0
|
|
else:
|
|
store = store + 1
|
|
for index, eachelem in enumerate(RFModels):
|
|
arg = dfParamRFFilt[eachelem-576]
|
|
all_classifiers.append(make_pipeline(ColumnSelector(cols=featureSelection['featureSelection'][index+store]), RandomForestClassifier().set_params(**arg)))
|
|
|
|
sclf = StackingCVClassifier(classifiers=all_classifiers,
|
|
use_probas=True,
|
|
meta_classifier=lr,
|
|
random_state=RANDOM_SEED,
|
|
n_jobs = -1)
|
|
else:
|
|
Models = json.loads(Models)
|
|
ModelsAll = preProceModels()
|
|
for index, modHere in enumerate(ModelsAll):
|
|
flag = 0
|
|
for loop in Models['ClassifiersList']:
|
|
temp = [int(s) for s in re.findall(r'\b\d+\b', loop)]
|
|
if (int(temp[0]) == int(modHere)):
|
|
flag = 1
|
|
if (flag is 0):
|
|
all_classifiersSelection.append(all_classifiers[index])
|
|
|
|
sclfStack = StackingCVClassifier(classifiers=all_classifiersSelection,
|
|
use_probas=True,
|
|
meta_classifier=lr,
|
|
random_state=RANDOM_SEED,
|
|
n_jobs = -1)
|
|
|
|
#else:
|
|
# for index, eachelem in enumerate(algorithmsWithoutDuplicates):
|
|
# if (eachelem == 'KNN'):
|
|
# for j, each in enumerate(resultsList[index][1]):
|
|
# all_classifiersSelection.append(make_pipeline(ColumnSelector(cols=columnsReduce[j]), KNeighborsClassifier().set_params(**each)))
|
|
# del columnsReduce[0:len(resultsList[index][1])]
|
|
# else:
|
|
# for j, each in enumerate(resultsList[index][1]):
|
|
# all_classifiersSelection.append(make_pipeline(ColumnSelector(cols=columnsReduce[j]), RandomForestClassifier().set_params(**each)))
|
|
# del columnsReduce[0:len(resultsList[index][1])]
|
|
# sclf = StackingCVClassifier(classifiers=all_classifiersSelection,
|
|
# use_probas=True,
|
|
# meta_classifier=lr,
|
|
# random_state=RANDOM_SEED,
|
|
# n_jobs = -1)
|
|
|
|
# parallelize all that
|
|
temp = model_selection.cross_val_score(sclf, XData, yData, cv=crossValidation, scoring='accuracy', n_jobs=-1)
|
|
scores.append(temp.mean())
|
|
scores.append(temp.std())
|
|
|
|
# influence calculation for all the instances
|
|
#DataHeatmap = []
|
|
|
|
#for indexValue, row in XData.iterrows():
|
|
# XDataRemove = XData.copy()
|
|
# XDataRemove.drop(indexValue, inplace=True)
|
|
# yDataRemove = yData.copy()
|
|
# del yDataRemove[indexValue]
|
|
# tempRemove = model_selection.cross_val_score(sclf, XDataRemove, yDataRemove, cv=crossValidation, scoring='accuracy', n_jobs=-1)
|
|
# DataHeatmap.append(abs((tempRemove.mean()+tempRemove.std())-(temp.mean()+temp.std())))
|
|
|
|
#print(DataHeatmap)
|
|
|
|
#averageValueData = sum(DataHeatmap) / len(DataHeatmap)
|
|
|
|
#print(averageValueData)
|
|
|
|
temp = model_selection.cross_val_score(sclf, XData, yData, cv=crossValidation, scoring='precision_weighted', n_jobs=-1)
|
|
scores.append(temp.mean())
|
|
scores.append(temp.std())
|
|
temp = model_selection.cross_val_score(sclf, XData, yData, cv=crossValidation, scoring='recall_weighted', n_jobs=-1)
|
|
scores.append(temp.mean())
|
|
scores.append(temp.std())
|
|
temp = model_selection.cross_val_score(sclfStack, XData, yData, cv=crossValidation, scoring='accuracy', n_jobs=-1)
|
|
scores.append(temp.mean())
|
|
scores.append(temp.std())
|
|
temp = model_selection.cross_val_score(sclfStack, XData, yData, cv=crossValidation, scoring='precision_weighted', n_jobs=-1)
|
|
scores.append(temp.mean())
|
|
scores.append(temp.std())
|
|
temp = model_selection.cross_val_score(sclfStack, XData, yData, cv=crossValidation, scoring='recall_weighted', n_jobs=-1)
|
|
scores.append(temp.mean())
|
|
scores.append(temp.std())
|
|
|
|
return 'Okay'
|
|
|
|
# Sending the final results to be visualized as a line plot
|
|
@app.route('/data/SendFinalResultsBacktoVisualize', methods=["GET", "POST"])
|
|
def SendToPlotFinalResults():
|
|
response = {
|
|
'FinalResults': scores
|
|
}
|
|
return jsonify(response)
|
|
|
|
# Retrieve data from client
|
|
@cross_origin(origin='localhost',headers=['Content-Type','Authorization'])
|
|
@app.route('/data/UpdateFilter', methods=["GET", "POST"])
|
|
def RetrieveFilter():
|
|
filterData = request.get_data().decode('utf8').replace("'", '"')
|
|
filterDataCleared = json.loads(filterData)
|
|
global filterDataFinal
|
|
filterDataFinal = filterDataCleared['filter']
|
|
return 'Done'
|
|
|
|
# Retrieve data from client
|
|
@cross_origin(origin='localhost',headers=['Content-Type','Authorization'])
|
|
@app.route('/data/SendDataSpacPoints', methods=["GET", "POST"])
|
|
def RetrieveDataSpacePoints():
|
|
dataSpacePoints = request.get_data().decode('utf8').replace("'", '"')
|
|
dataSpacePointsCleared = json.loads(dataSpacePoints)
|
|
global dataSpacePointsIDs
|
|
dataSpacePointsIDs = dataSpacePointsCleared['points']
|
|
return 'Done'
|
|
|
|
# Retrieve data from client
|
|
@cross_origin(origin='localhost',headers=['Content-Type','Authorization'])
|
|
@app.route('/data/UpdateAction', methods=["GET", "POST"])
|
|
def RetrieveAction():
|
|
filterAction = request.get_data().decode('utf8').replace("'", '"')
|
|
filterActionCleared = json.loads(filterAction)
|
|
|
|
global filterActionFinal
|
|
global dataSpacePointsIDs
|
|
global filterDataFinal
|
|
global XData
|
|
global yData
|
|
|
|
filterActionFinal = filterActionCleared['action']
|
|
|
|
if (filterActionFinal == 'merge'): # fix merge
|
|
if (filterDataFinal == 'mean' or filterDataFinal == ''):
|
|
mean = XData.iloc[dataSpacePointsIDs, :].mean()
|
|
XData.loc[len(XData)]= mean
|
|
else:
|
|
median = XData.iloc[dataSpacePointsIDs, :].median()
|
|
XData.loc[len(XData)]= median
|
|
yDataSelected = [yData[i] for i in dataSpacePointsIDs]
|
|
storeMode = mode(yDataSelected)
|
|
yData.append(storeMode)
|
|
XData = XData.drop(dataSpacePointsIDs)
|
|
yData = [i for j, i in enumerate(yData) if j not in dataSpacePointsIDs]
|
|
XData.reset_index(drop=True, inplace=True)
|
|
elif (filterActionFinal == 'compose'):
|
|
if (filterDataFinal == 'mean' or filterDataFinal == ''):
|
|
mean = XData.iloc[dataSpacePointsIDs, :].mean()
|
|
XData.loc[len(XData)]= mean
|
|
else:
|
|
median = XData.iloc[dataSpacePointsIDs, :].median()
|
|
XData.loc[len(XData)]= median
|
|
yDataSelected = [yData[i] for i in dataSpacePointsIDs]
|
|
storeMode = mode(yDataSelected)
|
|
yData.append(storeMode)
|
|
else:
|
|
XData = XData.drop(dataSpacePointsIDs)
|
|
yData = [i for j, i in enumerate(yData) if j not in dataSpacePointsIDs]
|
|
|
|
return 'Done'
|
|
|
|
# Retrieve data from client
|
|
@cross_origin(origin='localhost',headers=['Content-Type','Authorization'])
|
|
@app.route('/data/UpdateProvenanceState', methods=["GET", "POST"])
|
|
def RetrieveProvenance():
|
|
filterProvenance = request.get_data().decode('utf8').replace("'", '"')
|
|
filterProvenanceCleared = json.loads(filterProvenance)
|
|
global filterProvenanceFinal
|
|
filterProvenanceFinal = filterProvenanceCleared['provenance']
|
|
|
|
global XDataStored
|
|
global XData
|
|
global yDataStored
|
|
global yData
|
|
|
|
# save and restore
|
|
if (filterProvenanceFinal == 'save'):
|
|
XDataStored = XData
|
|
yDataStored = yData
|
|
else:
|
|
XData = XDataStored.copy()
|
|
yData = yDataStored.copy()
|
|
|
|
return 'Done' |