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» Auditing Sum Queries
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SUM
2007
Springer
14 years 1 months ago
The Consistency Extractor System: Querying Inconsistent Databases Using Answer Set Programs
Abstract. We present the Consistency Extractor System (ConsEx) that uses answer set programming to compute consistent answers to first-order queries posed to relational databases ...
Mónica Caniupán Marileo, Leopoldo E....
SMA
2010
ACM
231views Solid Modeling» more  SMA 2010»
13 years 7 months ago
Fast and robust retrieval of Minkowski sums of rotating convex polyhedra in 3-space
We present a novel method for fast retrieval of exact Minkowski sums of pairs of convex polytopes in R3 , where one of the polytopes keeps rotating. The algorithm is based on pre-...
Naama Mayer, Efi Fogel, Dan Halperin
IPM
2007
131views more  IPM 2007»
13 years 7 months ago
Beyond SumBasic: Task-focused summarization with sentence simplification and lexical expansion
In recent years, there has been increased interest in topic-focused multi-document summarization. In this task, automatic summaries are produced in response to a specific informat...
Lucy Vanderwende, Hisami Suzuki, Chris Brockett, A...
CIKM
2008
Springer
13 years 9 months ago
Aggregate queries over ontologies
Answering queries over ontologies is an important issue for the Semantic Web. Aggregate queries were widely studied for relational databases but almost no results are known for ag...
Diego Calvanese, Evgeny Kharlamov, Werner Nutt, Ca...
EDBT
2009
ACM
160views Database» more  EDBT 2009»
13 years 12 months ago
Estimating aggregates in time-constrained approximate queries in Oracle
The concept of time-constrained SQL queries was introduced to address the problem of long-running SQL queries. A key approach adopted for supporting time-constrained SQL queries i...
Ying Hu, Seema Sundara, Jagannathan Srinivasan