5954 search results - page 45 / 1191 » Querying Bi-level Information |
IPM
2007
13 years 10 months ago
2007
Users of search engines express their needs as queries, typically consisting of a small number of terms. The resulting search engine query logs are valuable resources that can be ...
SIGMOD
2011
ACM
13 years 27 days ago
2011
ACM
Probabilistic database systems have successfully established themselves as a tool for managing uncertain data. However, much of the research in this area has focused on efficient...
ICDE
2005
IEEE
14 years 3 months ago
2005
IEEE
Current federated systems deploy cost-based query optimization mechanisms; i.e., the optimizer selects a global query plan with the lowest cost to execute. Thus, cost functions in...
ICTAI
2002
IEEE
14 years 3 months ago
2002
IEEE
It is observed that there is an important query requirement missing for search engines. With the wide variation of domain knowledge and user's interest, a user would like to ...
CICLING
2010
Springer
14 years 1 months ago
2010
Springer
In this paper, we address both standard and focused retrieval tasks based on comprehensible language models and interactive query expansion (IQE). Query topics are expanded using a...