Dream big, Know how to have fun, Get job done personal website: www.cs.uic.edu/~lzhang3

Staff Data Mining Scientist @ From September 2015 to Present (4 months) Computer scientist @ Developed multilingual sentiment analysis system for social media data, which can analyze and measure people’s sentiments on various entities (e.g., organization, person, event) for business decision marking. Developed trending topic extraction system for social media data, which can monitor important events happening in social media channels in real time. Developed enterprise search algorithms for Adobe digital marketing platform. From December 2012 to September 2015 (2 years 10 months) Machine learning specialist & software development manager @ Developed query understanding algorithms to improve search relevancy for e-commerce websites: Sears.com and Kmart.com. Developed spelling correction, autocompletion and related queries identification algorithms for product search query *Sears Holdings is the 7th largest online retailer in revenues and 2nd to Amazon among broadline online retailers in US. From May 2011 to December 2012 (1 year 8 months) Research assistant @ Did research and development on algorithms for opinion mining applications, including product name recognition/extraction, product feature/attribute extraction and sentiment analysis for opinion documents. Did research on analyzing customer’s satisfaction and buying intention from social media channel (e.g. Facebook, Twitter, blogs, forum discussions and reviews). Did research on diagnostic data mining algorithms to find interestingness from large data set and worked with Motorola Labs for developing a large diagnostic data mining system for about two years From August 2007 to May 2011 (3 years 10 months) Research associate (Intern) @ Developed a prototype system for sentiment analysis on Twitter data. From May 2010 to August 2010 (4 months) Research assistant (Intern) @ Developed new functions for the system “Opportunity Map”. Migrated “Opportunity Map” to cloud computing environment (Hadoop) for large scale data analysis From May 2009 to August 2009 (4 months) Research assistant (Intern) @ Built a large diagnostic data mining system called “Opportunity Map” for analyzing large data sets for entirely different applications, which has been deployed and in daily use in Motorola. From May 2007 to August 2007 (4 months) Teaching assistant @ From August 2006 to May 2007 (10 months) Software engineer @ Developed Firstlink secure videoconferencing system, which is the first commercial secure videoconferencing system in China market at that time. From July 2005 to July 2006 (1 year 1 month) Research assistant @ Developed core software for radiographic welding seam inspection system. The system has been installed in many big boiler and steel tube manufacturing companies in China. Developed software for video gateway system of videoconferencing system From February 2004 to July 2005 (1 year 6 months)

Ph.D, Opinion Mining / Sentiment Analysis, NLP, Text Mining, Data Mining @ University of Illinois at Chicago From 2006 to 2011 Master of Science (M.S.), Image and Video Processing @ Wuhan UniversityBachelor of Science (B.S.), Computer Science @ Wuhan University Lei Zhang is skilled in: Machine Learning, Natural Language Processing, Data Mining, Hadoop, Java, Algorithms, Information Retrieval, Text Mining, Python, Cloud Computing, Big Data, JSP, Sentiment Analysis, Text Analytics, C++