809 search results - page 147 / 162 » Web Query Characteristics and their Implications on Search E... |
101
Voted
EDBT
2012
ACM
12 years 12 months ago
2012
ACM
Query optimization in RDF Stores is a challenging problem as SPARQL queries typically contain many more joins than equivalent relational plans, and hence lead to a large join orde...
82
Voted
WEBI
2007
Springer
15 years 3 months ago
2007
Springer
There are information needs involving costly decisions that cannot be efficiently satisfied through conventional web search engines. Alternately, community centric search can prov...
IUI
2006
ACM
15 years 3 months ago
2006
ACM
Question answering (QA) systems take users’ natural language questions and retrieve relevant answers from large repositories of free texts. Despite recent progress in QA researc...
P2P
2006
IEEE
15 years 3 months ago
2006
IEEE
Large-scale distributed data management with P2P systems requires the existence of similarity operators for queries as we cannot assume that all users will agree on exactly the sa...
105
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SIGIR
2012
ACM
12 years 12 months ago
2012
ACM
Finding topic experts on microblogging sites with millions of users, such as Twitter, is a hard and challenging problem. In this paper, we propose and investigate a new methodolog...