Wei Zhang

Email: weizh at cmu dot edu

Office: 5516 Gates and Hillman Building

I am a master's student of Language Technology Institute in School of Computer Science. I am from China. My research interest in general is Machine Learning and NLP. I used to work on statistical word sense disambiguation, supervised and unsupervised Information Extraction, Web IR and Recommender Systems in digital library. I am a member of ACL SIGLEX. Here's my CV

I am working with Dr. Judith Gelernter on Geo-Information Extraction on Twitter data. The project is on google code. This is a machine-learning based and rule-based named entity recognizer for twitter. It could handle English and Spanish tweets. We used over 3000 location-tagged tweets for Spanish, about 6000 English location-tagged tweets to train linear-chain CRF and Voted Perceptron Hidden Markov Model(VPHMM).