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INFOCOM
2002
IEEE
15 years 4 months ago
Locality in Search Engine Queries and Its Implications for Caching
—Caching is a popular technique for reducing both server load and user response time in distributed systems. In this paper, we consider the question of whether caching might be e...
Yinglian Xie, David R. O'Hallaron
DPD
1998
117views more  DPD 1998»
14 years 11 months ago
Solving Local Cost Estimation Problem for Global Query Optimization in Multidatabase Systems
To meet users’ growing needs for accessing pre-existing heterogeneous databases, a multidatabase system (MDBS) integrating multiple databases has attracted many researchers recen...
Qiang Zhu, Per-Åke Larson
VLDB
2004
ACM
102views Database» more  VLDB 2004»
15 years 5 months ago
PIVOT and UNPIVOT: Optimization and Execution Strategies in an RDBMS
PIVOT and UNPIVOT, two operators on tabular data that exchange rows and columns, enable data transformations useful in data modeling, data analysis, and data presentation. They ca...
Conor Cunningham, Goetz Graefe, César A. Ga...
CIKM
2003
Springer
15 years 5 months ago
Categorizing web queries according to geographical locality
Web pages (and resources, in general) can be characterized according to their geographical locality. For example, a web page with general information about wildflowers could be c...
Luis Gravano, Vasileios Hatzivassiloglou, Richard ...
INTERSPEECH
2010
14 years 6 months ago
Towards a robust face recognition system using compressive sensing
An application of compressive sensing (CS) theory in imagebased robust face recognition is considered. Most contemporary face recognition systems suffer from limited abilities to ...
Allen Y. Yang, Zihan Zhou, Yi Ma, Shankar Sastry