David M. Andrzejewski

Applied machine learning and (un)natural language processing.

Technical Blogging

My blog
Mostly machine learning.
Sumo Logic Blog
Posts I've written at work about log management, distributed systems, The Cloud, Scala, etc.

Technical Talks

Research Papers

PhD Thesis

Incorporating Domain Knowledge in Latent Topic Models
Advised by Mark Craven and Xiaojin (Jerry) Zhu.
Computer Sciences, University of Wisconsin-Madison (2010)
(pdf, slides)

Patents and Applications

System and method of drug identification through radio frequency identification (RFID)
United States Patent Application (11/465993)
Ronald Makin, Kyle Jansson, Silas Zirn, David Andrzejewski, Timothy Flink.
Visualization Tool For System Tracing Infrastructure Events
United States Patent (US8464221)
Alice X. Zheng, Trishul A. Chilimbi, Shuo-Hsien Hsiao, Danyel A. Fisher, David M. Andrzejewski

Misc Technical Notes

Contrastive Divergence learning for binary Restricted Boltzmann Machines (RBM) (pdf)
Expectation-Maximization (EM) algorithm (pdf)
Online optimization algorithms (pdf)