Behrakis Grand Hall North
Creese Student Center
3210 Chestnut Street
Philadelphia, PA 19104
Please join the Drexel University College of Computing & Informatics for the second event in its Distinguished Speaker Series:
"Enhance Human Perception via Intelligent Text Retrieval and Mining"
With ChengXiang Zhai, PhD
Professor of Computer Science and Willett Faculty Scholar,
University of Illinois at Urbana-Champaign
Light refreshments will be provided. This event is free and open to the public.
Recent years have seen a dramatic growth of natural language text data, including web pages, news articles, scientific literature, emails, enterprise documents and social media such as blog articles, forum posts, product reviews and tweets. Text data contain all kinds of knowledge about the world and human opinions and preferences, thus offering great opportunities for mining actionable knowledge from vast amounts of text data ("big text data") to support user tasks and optimize decision making in all application domains. However, computers cannot yet accurately understand unrestricted natural language; as such, how to analyze and mine big text data effectively and efficiently is a difficult challenge, and involving humans in a loop of interactive text mining is essential. In this talk, Zhai will present the vision of TextScope, an interactive software tool to enable users to perform intelligent information retrieval and text analysis in a unified task-support framework. Just as a microscope allows us to see things in the “micro world,” and a telescope allows us to see things far away, the envisioned TextScope would allow us to “see” useful hidden knowledge buried in large amounts of text data that would otherwise be unknown to us. As examples of techniques that can be used to build a TextScope, Zhai will present some general statistical text mining algorithms that he and fellow researchers have recently developed for joint analysis of text and non-text data to discover interesting patterns and knowledge. At the end, Zhai will discuss the major challenges in developing a TextScope and some important directions for future research.
About the Speaker:
ChengXiang Zhai is a Professor of Computer Science and Willett Faculty Scholar at the University of Illinois at Urbana-Champaign, where he also holds a joint appointment at the Carl R. Woese Institute for Genomic Biology, Department of Statistics, and the School of Information Sciences. He received a Ph.D. in Computer Science from Nanjing University in 1990, and a Ph.D. in Language and Information Technologies from Carnegie Mellon University in 2002. He worked at Clairvoyance Corp. as a Research Scientist and a Senior Research Scientist from 1997 to 2000. His research interests are in the general area of intelligent information systems, including specifically information retrieval, data mining, natural language processing, machine learning, and their applications in domains such as biomedical informatics, and intelligent education systems. He has published over 300 papers in these areas with a Google Scholar h-index of 73 and holds 5 patents.