Sciweavers

536 search results - page 42 / 108
» Retrieval Using Structure for Question Answering
Sort
View
CIKM
2006
Springer
14 years 12 days ago
Information retrieval from relational databases using semantic queries
Relational databases are widely used today as a mechanism for providing access to structured data. They, however, are not suitable for typical information finding tasks of end use...
Anand Ranganathan, Zhen Liu
ICDE
2007
IEEE
92views Database» more  ICDE 2007»
14 years 10 months ago
STAR: A System for Tuple and Attribute Ranking of Query Answers
In recent years there has been a great deal of interest in developing effective techniques for ad-hoc search and retrieval in structured repositories such as relational databases ...
Nishant Kapoor, Gautam Das, Vagelis Hristidis, S. ...
ICTAI
2003
IEEE
14 years 1 months ago
Query Expansion and Query Reduction in Document Retrieval
We investigate two seemingly incompatible approaches for improving document retrieval performance in the context of question answering: query expansion and query reduction. Querie...
Ingrid Zukerman, Bhavani Raskutti, Yingying Wen
ECIR
2011
Springer
13 years 6 days ago
Exploiting Thread Structures to Improve Smoothing of Language Models for Forum Post Retrieval
Due to many unique characteristics of forum data, forum post retrieval is different from traditional document retrieval and web search, raising interesting research questions abou...
Huizhong Duan, Chengxiang Zhai
CLEF
2008
Springer
13 years 10 months ago
Assessing the Impact of Thesaurus-Based Expansion Techniques in QA-Centric IR
In this paper, we assess the impact of using thesaurus-based query expansion methods, at the Information Retrieval (IR) stage of a Question Answering (QA) system. We focus on expan...
Luís Sarmento, Jorge Teixeira, Eugén...