RFE BSU Data mining labs 1. Lab1 is a simple python functions include matrix & vectors preprocecing, vizulaze some data & file preprocecing. 2. Lab2 is a nonlinear least squares method. 3. Lab3 is a hand-made PCA and comparison this with sklearn PCA, t-sne & umap. 4. Lab4 is a hierarchical clustering tusk. 5. Lab5 is a k-means clustering tusk. 6. Lab6 is a Neural Networks (Kohonen Networks). Solve clustering task using Kohonen layer and Kohonen maps. 7. Lab7 is a simulated annealing method to solve the problem of finding the global extremum of a multimodal function.