Sciweavers

38 search results - page 5 / 8
» Clean Answers over Dirty Databases: A Probabilistic Approach
Sort
View
ICDE
2012
IEEE
277views Database» more  ICDE 2012»
11 years 8 months 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...
EDBT
2009
ACM
113views Database» more  EDBT 2009»
14 years 17 days ago
Query ranking in probabilistic XML data
Twig queries have been extensively studied as a major fragment of XPATH queries to query XML data. In this paper, we study PXMLRANK query, (Q, k), which is to rank top-k probabili...
Lijun Chang, Jeffrey Xu Yu, Lu Qin
ICDE
2003
IEEE
145views Database» more  ICDE 2003»
14 years 7 months ago
PXML: A Probabilistic Semistructured Data Model and Algebra
Despite the recent proliferation of work on semistructured data models, there has been little work to date on supporting uncertainty in these models. In this paper, we propose a m...
Edward Hung, Lise Getoor, V. S. Subrahmanian
SIGMOD
2010
ACM
228views Database» more  SIGMOD 2010»
13 years 10 months ago
Probabilistic string similarity joins
Edit distance based string similarity join is a fundamental operator in string databases. Increasingly, many applications in data cleaning, data integration, and scientific compu...
Jeffrey Jestes, Feifei Li, Zhepeng Yan, Ke Yi
AAAI
1998
13 years 7 months ago
Probabilistic Frame-Based Systems
Two of the most important threads of work in knowledge representation today are frame-based representation systems (FRS's) and Bayesian networks (BNs). FRS's provide an ...
Daphne Koller, Avi Pfeffer