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VLDB
1989
ACM
150views Database» more  VLDB 1989»
13 years 11 months ago
Aggregates in Possibilistic Databases
Fuzzy set theory represents a uniform framework for extending the relational database model to han-, dle imprecision of information found in the real world. None of the existing p...
Elke A. Rundensteiner, Lubomir Bic
SASO
2007
IEEE
14 years 1 months ago
Shruti: A Self-Tuning Hierarchical Aggregation System
Current aggregation systems either have a single inbuilt aggregation mechanism or require applications to specify an aggregation policy a priori. It is hard to predict the read an...
Praveen Yalagandula, Michael Dahlin
SASN
2004
ACM
14 years 27 days ago
Resilient aggregation in sensor networks
This paper studies security for data aggregation in sensor networks. Current aggregation schemes were designed without security in mind and there are easy attacks against them. We...
David Wagner
IAT
2008
IEEE
14 years 1 months ago
Extending a Defeasible Reasoner with Modal and Deontic Logic Operators
Defeasible logic is a non-monotonic formalism that deals with incomplete and conflicting information. Modal logic deals with necessity and possibility, exhibiting defeasibility; t...
Efstratios Kontopoulos, Nick Bassiliades, Guido Go...
PKDD
2004
Springer
135views Data Mining» more  PKDD 2004»
14 years 25 days ago
A Unified and Flexible Framework for Comparing Simple and Complex Patterns
One of the most important operations involving Data Mining patterns is computing their similarity. In this paper we present a general framework for comparing both simple and comple...
Ilaria Bartolini, Paolo Ciaccia, Irene Ntoutsi, Ma...