Monthly Archives: June 2014

Clustering by fast search and find of density peaks

This post is about a new cluster algorithm published by Alex Rodriguez and Alessandro Laio in the latest Science magazine. The method is short and efficient, I implemented it using about only 100 lines of cpp code. BASIC METHOD There are two leading criteria in this method: Local Density and Minimum Distance with higher density.  Rho above is the […]

Posted in Algorithm, Machine Learning | Tagged , | 64 Responses

Denoising Autoencoder

I chose “Dropped out auto-encoder” as my final project topic in the last semester deep learning course, it was simply dropping out units in regular sparse auto-encoder, and furthermore, in stacked sparse auto-encoder, both in visible layer and hidden layer. It does not work well on auto-encoders, except can be used in fine-tune process of stacked sparse […]

Posted in Algorithm, Machine Learning, OpenCV | Tagged , , , , , | 1 Response