76 lines
2.5 KiB
C++
76 lines
2.5 KiB
C++
#include <iostream>
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#include <string>
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#include <torch/torch.h>
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#include "ArffFiles.h"
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#include "Network.h"
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#include "CPPFImdlp.h"
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using namespace std;
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vector<mdlp::labels_t> discretize(vector<mdlp::samples_t>& X, mdlp::labels_t& y)
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{
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vector<mdlp::labels_t>Xd;
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auto fimdlp = mdlp::CPPFImdlp();
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for (int i = 0; i < X.size(); i++) {
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fimdlp.fit(X[i], y);
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mdlp::labels_t& xd = fimdlp.transform(X[i]);
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cout << "X[" << i << "]: ";
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auto mm = minmax_element(xd.begin(), xd.end());
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cout << *mm.first << " " << *mm.second << endl;
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Xd.push_back(xd);
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}
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return Xd;
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}
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int main()
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{
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auto handler = ArffFiles();
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handler.load("iris.arff");
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// Get Dataset X, y
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vector<mdlp::samples_t>& X = handler.getX();
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mdlp::labels_t& y = handler.getY();
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// Get className & Features
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auto className = handler.getClassName();
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vector<string> features;
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for (auto feature : handler.getAttributes()) {
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features.push_back(feature.first);
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}
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// Discretize Dataset
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vector<mdlp::labels_t> Xd = discretize(X, y);
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// Build Network
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auto network = bayesnet::Network();
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network.fit(Xd, y, features, className);
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cout << "Hello, Bayesian Networks!" << endl;
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cout << "Nodes:" << endl;
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for (auto [name, item] : network.getNodes()) {
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cout << "*" << item->getName() << " -> " << item->getNumStates() << endl;
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cout << "-Parents:" << endl;
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for (auto parent : item->getParents()) {
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cout << " " << parent->getName() << endl;
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}
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cout << "-Children:" << endl;
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for (auto child : item->getChildren()) {
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cout << " " << child->getName() << endl;
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}
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}
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cout << "Root: " << network.getRoot()->getName() << endl;
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network.setRoot(className);
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cout << "Now Root should be class: " << network.getRoot()->getName() << endl;
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cout << "CPDs:" << endl;
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auto nodes = network.getNodes();
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auto classNode = nodes[className];
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for (auto it = nodes.begin(); it != nodes.end(); it++) {
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cout << "* Name: " << it->first << " " << it->second->getName() << " -> " << it->second->getNumStates() << endl;
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cout << "Parents: ";
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for (auto parent : it->second->getParents()) {
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cout << parent->getName() << " -> " << parent->getNumStates() << ", ";
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}
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cout << endl;
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auto cpd = it->second->getCPT();
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cout << cpd << endl;
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}
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cout << "PyTorch version: " << TORCH_VERSION << endl;
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return 0;
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} |