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PODS
2006
ACM
196views Database» more  PODS 2006»
16 years 6 months ago
The containment problem for REAL conjunctive queries with inequalities
Query containment is a fundamental algorithmic problem in database query processing and optimization. Under set semantics, the query-containment problem for conjunctive queries ha...
T. S. Jayram, Phokion G. Kolaitis, Erik Vee
EDBT
2006
ACM
105views Database» more  EDBT 2006»
16 years 6 months ago
HASE: A Hybrid Approach to Selectivity Estimation for Conjunctive Predicates
Current methods for selectivity estimation fall into two broad categories, synopsis-based and sampling-based. Synopsis-based methods, such as histograms, incur minimal overhead at ...
Xiaohui Yu, Nick Koudas, Calisto Zuzarte
ICSE
2005
IEEE-ACM
16 years 6 months ago
Tool support for just-in-time architecture reconstruction and evaluation: an experience report
The need for software architecture evaluation has drawn considerable attention in recent years. In practice, this is a challenging exercise for two main reasons. First, in deploye...
Ian Gorton, Liming Zhu
MOBISYS
2008
ACM
16 years 5 months ago
Micro-Blog: sharing and querying content through mobile phones and social participation
Recent years have witnessed the impacts of distributed content sharing (Wikipedia, Blogger), social networks (Facebook, MySpace), sensor networks, and pervasive computing. We beli...
Al Schmidt, Jack Li, Landon P. Cox, Romit Roy Chou...
MOBIHOC
2004
ACM
16 years 5 months ago
Frequency rolling: a cooperative frequency hopping for mutually interfering wpans
A Wireless Personal Area Network (WPAN) provides wireless links among proximate devices, usually carried by an individual. As WPAN gains momentum in ubiquitous usage, the interfer...
Petar Popovski, Hiroyuki Yomo, Sebastien Aprili