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» Querying Communities in Relational Databases
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CIKM
2006
Springer
15 years 3 months ago
Mining blog stories using community-based and temporal clustering
In recent years, weblogs, or blogs for short, have become an important form of online content. The personal nature of blogs, online interactions between bloggers, and the temporal...
Arun Qamra, Belle L. Tseng, Edward Y. Chang
VLDB
1987
ACM
108views Database» more  VLDB 1987»
15 years 2 months ago
Translating and Optimizing SQL Queries Having Aggregates
is at least ae powerful as SQL. Two well known relational query languages that have a sound theoretical foundation are relational algebra and relational calculus. As SQL is more cl...
Günter von Bültzingsloewen
ICDE
2009
IEEE
149views Database» more  ICDE 2009»
16 years 28 days ago
OPAQUE: Protecting Path Privacy in Directions Search
Directions search returns the shortest path from a source to a destination on a road network. However, the search interests of users may be exposed to the service providers, thus r...
Ken C. K. Lee, Wang-Chien Lee, Hong Va Leong, Baih...
TDM
2004
122views Database» more  TDM 2004»
15 years 18 days ago
Retrieval Using Structure for Question Answering
This paper examines the use of XML for modern extractionbased question answering (QA). We feel that the XML community has taken too narrow a view of structured retrieval, and that...
Paul Ogilvie
ICDT
2007
ACM
105views Database» more  ICDT 2007»
15 years 5 months ago
Optimization of Query Plans in the presence of Access Limitations
We consider the problem of querying data sources that have limited capabilities and can thus only be accessed by complying with certain binding patterns for their attributes. This ...
Andrea Calì, Diego Calvanese, Davide Martin...