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» On Query Algebras for Probabilistic Databases
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PODS
2005
ACM
211views Database» more  PODS 2005»
14 years 7 months ago
Join-distinct aggregate estimation over update streams
There is growing interest in algorithms for processing and querying continuous data streams (i.e., data that is seen only once in a fixed order) with limited memory resources. Pro...
Sumit Ganguly, Minos N. Garofalakis, Amit Kumar, R...
SIGMOD
2011
ACM
276views Database» more  SIGMOD 2011»
12 years 10 months ago
Schedule optimization for data processing flows on the cloud
Scheduling data processing workflows (dataflows) on the cloud is a very complex and challenging task. It is essentially an optimization problem, very similar to query optimizati...
Herald Kllapi, Eva Sitaridi, Manolis M. Tsangaris,...
CIDR
2003
138views Algorithms» more  CIDR 2003»
13 years 8 months ago
AIMS: An Immersidata Management System
We introduce a system to address the challenges involved in managing the multidimensional sensor data streams generated within immersive environments. We call this data type, imme...
Cyrus Shahabi
ICFP
2010
ACM
13 years 8 months ago
Bidirectionalizing graph transformations
Bidirectional transformations provide a novel mechanism for synchronizing and maintaining the consistency of information between input and output. Despite many promising results o...
Soichiro Hidaka, Zhenjiang Hu, Kazuhiro Inaba, Hir...
ECOI
2007
101views more  ECOI 2007»
13 years 7 months ago
Reasoning about taxonomies in first-order logic
Experts often disagree about the organization of biological taxa. The shifting definitions of taxonomic names complicate otherwise simple queries concerning these taxa. For examp...
David Thau, Bertram Ludäscher