Bingquan Liu Ming Liu Gang Hu Harbin Institute

Bingquan Liu, Ming Liu, Gang Hu Harbin Institute of Technology CLASSIFICATION OF WEB QUERY INTENT USING ENCYCLOPEDIA 基于百科知识的查询意图获取

OUTLINE � Meaning � Seed term extraction � Intent category � Experiments results

MEANING � Improve performance of retrieve system by searching user’s intent � Classical category methods need adequate training corpus, whereas, it’s unavailable in retrieve situation. � Classical category methods mostly focus on long-text, contrastingly, query is quite shorttext.

SEED TERM EXTRACTION � Semantic similarity calculation between words based on How. Net. � Lexical construction to indicate text’s topic. � Markoff Random Walk to extend seed term set.

INTENT CATEGORY � Training corpus formed by Baidu Zhidao daily log. � Intent category based on SVM classification.