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» On the Decidability of Consistent Query Answering
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ICDE
2008
IEEE
563views Database» more  ICDE 2008»
15 years 8 months ago
Probabilistic Verifiers: Evaluating Constrained Nearest-Neighbor Queries over Uncertain Data
In applications like location-based services, sensor monitoring and biological databases, the values of the database items are inherently uncertain in nature. An important query fo...
Reynold Cheng, Jinchuan Chen, Mohamed F. Mokbel, C...
GLOBE
2008
Springer
13 years 9 months ago
Query Propagation in a P2P Data Integration System in the Presence of Schema Constraints
This paper addresses the problem of data integration in a P2P environment, where each peer stores schema of its local data, mappings between the schemas, and some schema constraint...
Tadeusz Pankowski
ISAAC
2007
Springer
118views Algorithms» more  ISAAC 2007»
14 years 2 months ago
Dynamic Structures for Top- k Queries on Uncertain Data
In an uncertain data set S = (S, p, f) where S is the ground set consisting of n elements, p : S → [0, 1] a probability function, and f : S → R a score function, each element i...
Jiang Chen, Ke Yi
SEMCO
2007
IEEE
14 years 2 months ago
Corpus-based Pattern Induction for a Knowledge-based Question Answering Approach
In this paper, we present an approach which, given a knowledge base and an appropriate text corpus, automatically induces patterns which can be used to query the knowledge base. W...
Philipp Cimiano, Michael Erdmann, Günter Ladw...
DEXAW
2007
IEEE
138views Database» more  DEXAW 2007»
14 years 2 months ago
Machine Learning for Question Answering from Tabular Data
Question Answering (QA) systems automatically answer natural language questions in a human-like manner. One of the practical approaches to open domain QA consists in extracting fa...
Mahboob Alam Khalid, Valentin Jijkoun, Maarten de ...