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SIGMOD
1996
ACM
97views Database» more  SIGMOD 1996»
14 years 18 days ago
Bifocal Sampling for Skew-Resistant Join Size Estimation
This paper introduces bifocal sampling, a new technique for estimating the size of an equi-join of two relations. Bifocal sampling classi es tuples in each relation into two group...
Sumit Ganguly, Phillip B. Gibbons, Yossi Matias, A...
EDBT
2009
ACM
144views Database» more  EDBT 2009»
14 years 9 days ago
Efficient maintenance techniques for views over active documents
Many Web applications are based on dynamic interactions between Web components exchanging flows of information. Such a situation arises for instance in mashup systems or when moni...
Serge Abiteboul, Pierre Bourhis, Bogdan Marinoiu
ICCS
2000
Springer
14 years 1 days ago
Conceptual Knowledge Discovery and Data Analysis
In this paper, we discuss Conceptual Knowledge Discovery in Databases (CKDD) in its connection with Data Analysis. Our approach is based on Formal Concept Analysis, a mathematical ...
Joachim Hereth Correia, Gerd Stumme, Rudolf Wille,...
EDBT
2012
ACM
266views Database» more  EDBT 2012»
11 years 10 months ago
Stormy: an elastic and highly available streaming service in the cloud
In recent years, new highly scalable storage systems have significantly contributed to the success of Cloud Computing. Systems like Dynamo or Bigtable have underpinned their abil...
Simon Loesing, Martin Hentschel, Tim Kraska, Donal...
VLDB
2002
ACM
120views Database» more  VLDB 2002»
13 years 8 months ago
Improving Data Access of J2EE Applications by Exploiting Asynchronous Messaging and Caching Services
The J2EE platform provides a variety of options for making business data persistent using DBMS technology. However, the integration with existing backend database systems has prov...
Samuel Kounev, Alejandro P. Buchmann