Entity-Relationship Queries over Wikipedia
Authors | Xiaonan Li Chengkai Li Cong Yu |
|---|---|
Publication date | 2010 |
DOI | 10.1145/1871985.1871991 |
Links | Original |
Entity-Relationship Queries over Wikipedia - scientific work related to Wikipedia quality published in 2010, written by Xiaonan Li, Chengkai Li and Cong Yu.
Overview
Wikipedia is the largest user-generated knowledge base. Authors propose a structured query mechanism, entity-relationship query , for searching entities in Wikipedia corpus by their properties and inter-relationships. An entity-relationship query consists of arbitrary number of predicates on desired entities. The semantics of each predicate is specified with keywords. Entity-relationship query searches entities directly over text rather than pre-extracted structured data stores. This characteristic brings two benefits: (1) Query semantics can be intuitively expressed by keywords; (2) It avoids information loss that happens during extraction. Authors present a ranking framework for general entity-relationship queries and a position-based Bounded Cumulative Model for accurate ranking of query answers. Experiments on INEX benchmark queries and own crafted queries show the effectiveness and accuracy of ranking method.
