204 search results - page 23 / 41 » Containment of Conjunctive Queries with Negation: Algorithms... |
ICDE
2010
IEEE
14 years 8 months ago
2010
IEEE
Uncertain data are inherent in many applications such as environmental surveillance and quantitative economics research. As an important problem in many applications, KNN query has...
IAW
2003
IEEE
14 years 2 months ago
2003
IEEE
Abstract— This paper describes the generation of fuzzy signatures to detect some cyber attacks. This approach is an enhancement to our previous work, which was based on the princ...
SE
2008
13 years 10 months ago
2008
Existing software systems contain a significant amount of duplicated code. Such redundancy can negatively impact program correctness, since inconsistent updates to duplicated code ...
CIKM
2007
Springer
14 years 3 months ago
2007
Springer
Opinion retrieval is a document retrieval process, which requires documents to be retrieved and ranked according to their opinions about a query topic. A relevant document must sa...
EDBT
2009
ACM
14 years 3 months ago
2009
ACM
Given a set Q of keywords, conventional keyword search (KS) returns a set of tuples, each of which (i) is obtained from a single relation, or by joining multiple relations, and (i...