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CIKM
2006
Springer
15 years 3 months ago
Annotation propagation revisited for key preserving views
This paper revisits the analysis of annotation propagation from source databases to views defined in terms of conjunctive (SPJ) queries. Given a source database D, an SPJ query Q,...
Gao Cong, Wenfei Fan, Floris Geerts
EDBT
2010
ACM
188views Database» more  EDBT 2010»
15 years 3 months ago
DEDUCE: at the intersection of MapReduce and stream processing
MapReduce and stream processing are two emerging, but different, paradigms for analyzing, processing and making sense of large volumes of modern day data. While MapReduce offers t...
Vibhore Kumar, Henrique Andrade, Bugra Gedik, Kun-...
ICDE
2009
IEEE
188views Database» more  ICDE 2009»
16 years 1 months ago
GuruMine: A Pattern Mining System for Discovering Leaders and Tribes
In this demo we introduce GuruMine, a pattern mining system for the discovery of leaders, i.e., influential users in social networks, and their tribes, i.e., a set of users usually...
Amit Goyal 0002, Byung-Won On, Francesco Bonchi, L...
WWW
2007
ACM
16 years 15 days ago
XML design for relational storage
Design principles for XML schemas that eliminate redundancies and avoid update anomalies have been studied recently. Several normal forms, generalizing those for relational databa...
Solmaz Kolahi, Leonid Libkin
PODS
2009
ACM
130views Database» more  PODS 2009»
16 years 11 days ago
Secondary indexing in one dimension: beyond b-trees and bitmap indexes
Let be a finite, ordered alphabet, and consider a string x = x1x2 . . . xn n . A secondary index for x answers alphabet range queries of the form: Given a range [al, ar] , retu...
Rasmus Pagh, Srinivasa Rao Satti