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DGO
2004
110views Education» more  DGO 2004»
13 years 11 months ago
Question Answering Performance on Table Data
Question answering (QA) on table data is a challenging information retrieval task. This paper describes a QA system for tables created with both machine learning and heuristic tab...
Xing Wei, W. Bruce Croft, David Pinto
IJCAI
2007
13 years 11 months ago
A New Perspective on Stable Models
The definition of a stable model has provided a declarative semantics for Prolog programs with negation as failure and has led to the development of answer set programming. In th...
Paolo Ferraris, Joohyung Lee, Vladimir Lifschitz
APAL
2005
135views more  APAL 2005»
13 years 10 months ago
Safe beliefs for propositional theories
We propose an extension of answer sets, that we call safe beliefs, that can be used to study several properties and notions of answer sets and logic programming from a more genera...
Mauricio Osorio, Juan Antonio Navarro Pérez...
AI
2011
Springer
13 years 5 months ago
Stable models and circumscription
The concept of a stable model provided a declarative semantics for Prolog programs with negation as failure and became a starting point for the development of answer set programmi...
Paolo Ferraris, Joohyung Lee, Vladimir Lifschitz
ICDE
2012
IEEE
277views Database» more  ICDE 2012»
12 years 15 days ago
Aggregate Query Answering on Possibilistic Data with Cardinality Constraints
— Uncertainties in data arise for a number of reasons: when the data set is incomplete, contains conflicting information or has been deliberately perturbed or coarsened to remov...
Graham Cormode, Divesh Srivastava, Entong Shen, Ti...