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EDBT
2010
ACM
135views Database» more  EDBT 2010»
15 years 2 months ago
Querying spatial patterns
Spatial data are common in many scientific and commercial domains such as geographical information systems and gene/protein expression profiles. Querying for distribution patterns...
Vishwakarma Singh, Arnab Bhattacharya, Ambuj K. Si...
KDD
2002
ACM
140views Data Mining» more  KDD 2002»
16 years 5 months ago
Mining frequent item sets by opportunistic projection
In this paper, we present a novel algorithm OpportuneProject for mining complete set of frequent item sets by projecting databases to grow a frequent item set tree. Our algorithm ...
Junqiang Liu, Yunhe Pan, Ke Wang, Jiawei Han
GLOBECOM
2008
IEEE
15 years 11 months ago
High-Rate Space-Time Coded Large MIMO Systems: Low-Complexity Detection and Performance
— Large MIMO systems with tens of antennas in each communication terminal using full-rate non-orthogonal spacetime block codes (STBC) from Cyclic Division Algebras (CDA) can achi...
Saif K. Mohammed, Ananthanarayanan Chockalingam, B...
SIGIR
2009
ACM
15 years 11 months ago
What queries are likely to recur in web search?
We study the recurrence dynamics of queries in Web search by analysing a large real-world query log dataset. We find that query frequency is more useful in predicting collective ...
Dell Zhang, Jinsong Lu
EUROSYS
2011
ACM
14 years 8 months ago
Finding complex concurrency bugs in large multi-threaded applications
Parallel software is increasingly necessary to take advantage of multi-core architectures, but it is also prone to concurrency bugs which are particularly hard to avoid, find, an...
Pedro Fonseca, Cheng Li, Rodrigo Rodrigues