537 search results - page 58 / 108 » The Impact of Query Structure and Query Expansion on Retriev... |
LWA
2008
13 years 10 months ago
2008
We investigate the topical structure of the set of documents used to expand a query in pseudorelevance feedback (PRF). We propose a coherence score to measure the relative topical...
CIKM
2009
Springer
13 years 10 months ago
2009
Springer
Desktop search is an important part of personal information management (PIM). However, research in this area has been limited by the lack of shareable test collections, making cum...
WWW
2005
ACM
14 years 9 months ago
2005
ACM
Large web search engines have to answer thousands of queries per second with interactive response times. Due to the sizes of the data sets involved, often in the range of multiple...
NLPRS
2001
Springer
14 years 1 months ago
2001
Springer
This paper presents a sentence extraction method based on Concept Coupling Model, a language model for handling natural language sentence structures. Sentence extraction is perfor...
INFOSCALE
2007
ACM
13 years 10 months ago
2007
ACM
We present a query-driven algorithm for the distributed indexing of large document collections within structured P2P networks. To cope with bandwidth consumption that has been ide...