623 search results - page 9 / 125 » An Empirical Study of Query Specificity |
CCR
2008
13 years 7 months ago
2008
In the last few years, several studies have analyzed the performance of flooding and random walks as querying mechanisms for unstructured wireless sensor networks. However, most o...
EDBT
2008
ACM
14 years 7 months ago
2008
ACM
A form-based query interface is usually the preferred means to provide an unsophisticated user access to a database. Not only is such an interface easy to use, requiring no techni...
ESORICS
2006
Springer
13 years 11 months ago
2006
Springer
Data confidentiality is a major concern in database systems. Encryption is a useful tool for protecting the confidentiality of sensitive data. However, when data is encrypted, perf...
ISJ
2002
13 years 7 months ago
2002
In recent years, an increasing amount of attention has been paid to information systems (IS) outsourcing by practitioners as well as academics. However, our understanding of the fa...
CIKM
2009
Springer
14 years 9 days ago
2009
Springer
We systematically compare five representative state-of-theart methods for estimating query language models with pseudo feedback in ad hoc information retrieval, including two var...