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ICDE
2003
IEEE
161views Database» more  ICDE 2003»
14 years 9 months ago
Structural Join Order Selection for XML Query Optimization
Structural join operations are central to evaluating queries against XML data, and are typically responsible for consuming a lion's share of the query processing time. Thus, ...
Yuqing Wu, Jignesh M. Patel, H. V. Jagadish
WWW
2006
ACM
14 years 8 months ago
Optimizing scoring functions and indexes for proximity search in type-annotated corpora
We introduce a new, powerful class of text proximity queries: find an instance of a given "answer type" (person, place, distance) near "selector" tokens matchi...
Soumen Chakrabarti, Kriti Puniyani, Sujatha Das
WWW
2004
ACM
14 years 8 months ago
Through different eyes: assessing multiple conceptual views for querying web services
We present enhancements for UDDI / DAML-S registries allowing cooperative discovery and selection of Web services with a focus on personalization. To find the most useful service ...
Wolf-Tilo Balke, Matthias Wagner
TCC
2009
Springer
158views Cryptology» more  TCC 2009»
14 years 8 months ago
On the (Im)Possibility of Arthur-Merlin Witness Hiding Protocols
The concept of witness-hiding suggested by Feige and Shamir is a natural relaxation of zero-knowledge. In this paper we identify languages and distributions for which many known co...
Iftach Haitner, Alon Rosen, Ronen Shaltiel
KDD
2009
ACM
173views Data Mining» more  KDD 2009»
14 years 8 months ago
Constant-factor approximation algorithms for identifying dynamic communities
We propose two approximation algorithms for identifying communities in dynamic social networks. Communities are intuitively characterized as "unusually densely knit" sub...
Chayant Tantipathananandh, Tanya Y. Berger-Wolf