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SPAA
2006
ACM
14 years 3 months ago
On space-stretch trade-offs: lower bounds
One of the fundamental trade-offs in compact routing schemes is between the space used to store the routing table on each node and the stretch factor of the routing scheme – th...
Ittai Abraham, Cyril Gavoille, Dahlia Malkhi
ISDA
2009
IEEE
14 years 3 months ago
A Combined Query Expansion Technique for Retrieving Opinions from Blogs
In this paper, we discuss the the role of the retrieval component in an TREC style opinion question answering system. Since blog retrieval differs from traditional ad-hoc document...
Saeedeh Momtazi, Stefan Kazalski, Dietrich Klakow
CIKM
2007
Springer
14 years 3 months ago
"I know what you did last summer": query logs and user privacy
We investigate the subtle cues to user identity that may be exploited in attacks on the privacy of users in web search query logs. We study the application of simple classifiers ...
Rosie Jones, Ravi Kumar, Bo Pang, Andrew Tomkins
WEBDB
2010
Springer
143views Database» more  WEBDB 2010»
14 years 2 months ago
Querying Wikipedia Documents and Relationships
Wikipedia has become an important source of information which is growing very rapidly. However, the existing infrastructure for querying this information is limited and often igno...
Huong Nguyen, Thanh Nguyen, Hoa Nguyen, Juliana Fr...
ICDT
1999
ACM
97views Database» more  ICDT 1999»
14 years 1 months ago
Optimizing Large Join Queries in Mediation Systems
In data integration systems, queries posed to a mediator need to be translated into a sequence of queries to the underlying data sources. In a heterogeneous environment, with sour...
Ramana Yerneni, Chen Li, Jeffrey D. Ullman, Hector...