Sciweavers

3101 search results - page 546 / 621
» Using Relational Databases in the Engineering Repository Sys...
Sort
View
ER
2007
Springer
129views Database» more  ER 2007»
15 years 11 months ago
A Methodology and Toolkit for Deploying Contract Documents as E-contracts
Recent research in e-contracts is concerned with the development of frameworks and tools to support contracts. EREC framework is one that enables modelling and deployment of e-con...
Anushree Khandekar, P. Radha Krishna, Kamalakar Ka...
SIGMOD
2002
ACM
112views Database» more  SIGMOD 2002»
16 years 4 months ago
Minimal probing: supporting expensive predicates for top-k queries
This paper addresses the problem of evaluating ranked top-? queries with expensive predicates. As major DBMSs now all support expensive user-defined predicates for Boolean queries...
Kevin Chen-Chuan Chang, Seung-won Hwang
PODS
2005
ACM
151views Database» more  PODS 2005»
16 years 4 months ago
Estimating arbitrary subset sums with few probes
Suppose we have a large table T of items i, each with a weight wi, e.g., people and their salary. In a general preprocessing step for estimating arbitrary subset sums, we assign e...
Noga Alon, Nick G. Duffield, Carsten Lund, Mikkel ...
EDBT
2010
ACM
208views Database» more  EDBT 2010»
15 years 11 months ago
Stream schema: providing and exploiting static metadata for data stream processing
Schemas, and more generally metadata specifying structural and semantic constraints, are invaluable in data management. They facilitate conceptual design and enable checking of da...
Peter M. Fischer, Kyumars Sheykh Esmaili, Ren&eacu...
SIGMOD
2009
ACM
172views Database» more  SIGMOD 2009»
15 years 11 months ago
Self-organizing tuple reconstruction in column-stores
Column-stores gained popularity as a promising physical design alternative. Each attribute of a relation is physically stored as a separate column allowing queries to load only th...
Stratos Idreos, Martin L. Kersten, Stefan Manegold