龙星计划课程:信息检索__
Natural Language Processing for IR
ChengXiang Zhai (翟成祥)
Department of Computer Science
Graduate School of Library & Information Science
Institute for Genomic Biology, Statistics
University of Illinois, Urbana-Champaign
http://www-faculty.cs.uiuc.edu/~czhai, czhai@cs.uiuc.edu
Elements of Text Info Management Technologies
Search
Text

Filtering
Categorization
Summarization
Clustering
Natural Language Content Analysis
Extraction
Mining
Visualization
Retrieval
Applications
Mining
Applications
Information
Access
Knowledge
Acquisition
Information
Organization
Overview of NLP for IR
Most work has focused on improving the indexing unit
Syntactic phrases
Word sense disambiguation
Anaphora resolution
Dependency parsing
Sentiment retrieval
Improving the Indexing Unit
The following slides are taken/adapted from Jimmy Lin's presentation
http://umiacs.umd.edu/~resnik/ling647_sp2006/slides/jimmy_ir_lecture.ppt
The Central Problem in IR

下一页