Sciweavers

826 search results - page 26 / 166
» Query Performance Prediction: Evaluation Contrasted with Eff...
Sort
View
WWW
2007
ACM
16 years 5 months ago
A large-scale evaluation and analysis of personalized search strategies
Although personalized search has been proposed for many years and many personalization strategies have been investigated, it is still unclear whether personalization is consistent...
Zhicheng Dou, Ruihua Song, Ji-Rong Wen
ICDE
2009
IEEE
165views Database» more  ICDE 2009»
16 years 6 months ago
Spatial Range Querying for Gaussian-Based Imprecise Query Objects
Abstract-- In sensor environments and moving robot applications, the position of an object is often known imprecisely because of measurement error and/or movement of the object. In...
Yoshiharu Ishikawa, Yuichi Iijima, Jeffrey Xu Yu
VLDB
2007
ACM
166views Database» more  VLDB 2007»
15 years 10 months ago
To Share or Not To Share?
Intuitively, aggressive work sharing among concurrent queries in a database system should always improve performance by eliminating redundant computation or data accesses. We show...
Ryan Johnson, Nikos Hardavellas, Ippokratis Pandis...
SIGIR
2004
ACM
15 years 10 months ago
Learning effective ranking functions for newsgroup search
Web communities are web virtual broadcasting spaces where people can freely discuss anything. While such communities function as discussion boards, they have even greater value as...
Wensi Xi, Jesper Lind, Eric Brill
ECIR
2007
Springer
15 years 5 months ago
A Decision-Theoretic Model for Decentralised Query Routing in Hierarchical Peer-to-Peer Networks
Abstract. Efficient and effective routing of content-based queries is an emerging problem in peer-to-peer networks, and can be seen as an extension of the traditional “resource ...
Henrik Nottelmann, Norbert Fuhr