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128
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VLDB
1989
ACM
150views Database» more  VLDB 1989»
15 years 7 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
138
Voted
SMC
2010
IEEE
124views Control Systems» more  SMC 2010»
15 years 2 months ago
SoftFacts: A top-k retrieval engine for ontology mediated access to relational databases
—We outline SoftFacts, an ontology mediated top-k information retrieval system over relational databases. An ontology layer is used to define (in terms of a OWL-QL like Semantic...
Umberto Straccia
165
Voted
SIGMOD
2007
ACM
105views Database» more  SIGMOD 2007»
16 years 3 months ago
Nulls, three-valued logic, and ambiguity in SQL: critiquing date's critique
Date's popular critique of SQL's three-valued logic [4, 3] purports to demonstrate that SQL queries can produce erroneous results when nulls are present in the database....
Claude Rubinson
118
Voted
CTRSA
2008
Springer
109views Cryptology» more  CTRSA 2008»
15 years 5 months ago
Super-Efficient Verification of Dynamic Outsourced Databases
We develop new algorithmic and cryptographic techniques for authenticating the results of queries over databases that are outsourced to an untrusted responder. We depart from previ...
Michael T. Goodrich, Roberto Tamassia, Nikos Trian...
133
Voted
DEXA
2008
Springer
85views Database» more  DEXA 2008»
15 years 5 months ago
Reordering of Location Identifiers for Indexing an RFID Tag Object Database
The query performance for tracing tags depends upon the distribution of tag trajectories in the data space. We examine a more efficient representation of tag trajectories by means ...
Sungwoo Ahn, Bonghee Hong