News

[11/2009]We release our parallel spectral clustering software, please check below.
[08/2009]I will be joining Yahoo! in Sunnyvale, CA.
[04/2009] I successfully defended my dissertation.


Biography

Wen-Yen Chen

I am currently a research engineer in Yahoo!, work on research, new initiatives and data mining/analysis. I received my Ph.D. in Computer Science from U.C. Santa Barbara (UCSB) in 2009. I obtained my B.S./M.S. in Computer Science from National Chiao Tung University (NCTU). Since January 2006 I have been working with the Multimedia Database Laboratory (MMDB) advised by Prof. Edward Y. Chang. I have interned at IBM (2005), NEC (2006), and Google Beijing Research (2007-2009).

I am interested in the areas of data mining, machine learning, parallel computing, and their applications to social networks. Specifically, we focus on the information recommendation tasks in social networks, including personalized community recommendations, image and community clustering, and automatic image annotations. To handle large scale data sets, we parallelize both memory use and computation on distributed computers.


Released Software
  • Spectral Clustering: A simple and easy-to-use MATLAB package for spectral clustering using sparse similarity matrix (nearest neighbor) and the Nystrom method. This package has received Top 20 downloads on MLOSS website.
  • Parallel Spectral Clustering: A parallel C++ implementation of Parallel Spectral Clustering. We are expecting to present a highly optimized parallel implemention of all the steps of spectral clustering. We use PARPACK as underlying eigenvalue decomposition package and F2C to compile fortran code.
  • Parallel LDA: A C++ implementation of fast Gibbs sampling of Latent Dirichlet Allocation (LDA). This package uses Message Passing Interface (MPI) for parallelization.
Conference Sites
  • 4/26-4/30, 2010          WWW 2010, Raleigh, NC, USA (deadline: Nov 2, 2008)
  • 7/25-7/28, 2010          KDD 2010, Washington, DC, USA (deadline: Feb 5, 2009, abstract: Feb 2, 2009)
  • 7/18-7/23, 2010          SIGIR 2010, Geneva, Switzerland (deadline: Jan 22, 2009, abstract: Jan 15, 2009)
Journal Submission Sites