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» Aggregates in Possibilistic Databases
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SIGMOD
2011
ACM
201views Database» more  SIGMOD 2011»
14 years 4 months ago
Apache hadoop goes realtime at Facebook
Facebook recently deployed Facebook Messages, its first ever user-facing application built on the Apache Hadoop platform. Apache HBase is a database-like layer built on Hadoop des...
Dhruba Borthakur, Jonathan Gray, Joydeep Sen Sarma...
109
Voted
VLDB
2007
ACM
139views Database» more  VLDB 2007»
15 years 8 months ago
A Bayesian Method for Guessing the Extreme Values in a Data Set
For a large number of data management problems, it would be very useful to be able to obtain a few samples from a data set, and to use the samples to guess the largest (or smalles...
Mingxi Wu, Chris Jermaine
VLDB
2005
ACM
140views Database» more  VLDB 2005»
15 years 7 months ago
OLAP Over Uncertain and Imprecise Data
We extend the OLAP data model to represent data ambiguity, specifically imprecision and uncertainty, and introduce an allocation-based approach to the semantics of aggregation qu...
Douglas Burdick, Prasad Deshpande, T. S. Jayram, R...
DEXAW
2003
IEEE
70views Database» more  DEXAW 2003»
15 years 7 months ago
XenoTrust: Event-based distributed trust management
This paper describes XenoTrust, the trust management architecture used in the XenoServer Open Platform: a public infrastructure for wide-area computing, capable of hosting tasks t...
Boris Dragovic, Evangelos Kotsovinos, Steven Hand,...
DASFAA
1995
IEEE
118views Database» more  DASFAA 1995»
15 years 5 months ago
Combining Indexing Technique with Path Dictionary for Nested Object Queries
A path dictionary encodes the connections among objects in the aggregation hierarchy. It has been shown to be an efficient mechanism for supporting nested object queries [6]. In t...
Wang-Chien Lee, Dik Lun Lee