EntityEngine: answering entity-relationship queries using shallow semantics

We introduce EntityEngine, a system for answering entityrelationship queries over text. Such queries combine SQLlike structures with IR-style keyword constraints and therefore, can be expressive and flexible in querying about entities and their relationships. EntityEngine consists of various offline and online components, including a position-based ranking model for accurate ranking of query answers and a novel entity-centric index for efficient query evaluation. Categories and Subject Descriptors: H.3.3 Information Storage and Retrieval: Information Search and Retrieval General Terms: Algorithms, Design, Experimentation

• Type: Journal
• Year: 2010
• Where: CIKM
• Authors: Xiaonan Li, Chengkai Li, Cong Yu
• Keywords: CIKM 2010, Efficient Query Evaluation, Information Technology, IR-style Keyword Constraints, Retrieval General Terms