t-viSNE: Interactive Assessment and Interpretation of t-SNE Projections https://doi.org/10.1109/TVCG.2020.2986996
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t-viSNE/tsne_main.cpp

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#include <cfloat>
#include <cmath>
#include <cstdlib>
#include <cstdio>
#include <cstring>
#include <ctime>
#include "tsne.h"
// Function that runs the Barnes-Hut implementation of t-SNE
int main() {
// Define some variables
int origN, N, D, no_dims, max_iter;
double perplexity, theta, *data;
int rand_seed = -1;
// Read the parameters and the dataset
if(TSNE::load_data(&data, &origN, &D, &no_dims, &theta, &perplexity, &rand_seed, &max_iter)) {
// Make dummy landmarks
N = origN;
int* landmarks = (int*) malloc(N * sizeof(int));
if(landmarks == NULL) { printf("Memory allocation failed!\n"); exit(1); }
for(int n = 0; n < N; n++) landmarks[n] = n;
// Now fire up the SNE implementation
double* Y = (double*) malloc(N * no_dims * sizeof(double));
double* costs = (double*) calloc(N, sizeof(double));
if(Y == NULL || costs == NULL) { printf("Memory allocation failed!\n"); exit(1); }
TSNE::run(data, N, D, Y, no_dims, perplexity, theta, rand_seed, false, max_iter, 250, 250, 1);
// Save the results
TSNE::save_data(Y, landmarks, costs, N, no_dims);
// Clean up the memory
free(data); data = NULL;
free(Y); Y = NULL;
free(costs); costs = NULL;
free(landmarks); landmarks = NULL;
}
}