W. Fan

Publications
Influence

A cost-based model and effective heuristic for repairing constraints by value modification

Philip Bohannon, M. Flaster, W. Fan, R. Rastogi
Computer Science
SIGMOD '05
14 June 2005

We define a database repair as a set of value modifications. Expand

W. Fan, C. Chan, M. Garofalakis
Computer Science
SIGMOD '04
13 June 2004

The prevalent use of XML highlights the need for a generic, flexible access-control mechanism for XML documents that supports efficient and secure query access, without revealing sensitive information unauthorized users. Expand

Conditional Functional Dependencies for Data Cleaning

Philip Bohannon, W. Fan, Floris Geerts, X. Jia, Anastasios Kementsietsidis
Computer Science
IEEE 23rd International Conference on Data…
15 April 2007

We propose a class of constraints, referred to as conditional functional dependencies (CFDs), and study their applications in data cleaning. Expand

Improving Data Quality: Consistency and Accuracy

G. Cong, W. Fan, Floris Geerts, X. Jia, S. Ma
Computer Science
VLDB
23 September 2007

We propose two algorithms for automatically computing a repair D' that satisfies a given set of CFDs. Expand

Conditional functional dependencies for capturing data inconsistencies

W. Fan, Floris Geerts, X. Jia, Anastasios Kementsietsidis
Computer Science
TODS
1 June 2008

We propose a class of integrity constraints for relational databases, referred to as conditional functional dependencies (CFDs), and study their applications in data cleaning. Expand

XPath satisfiability in the presence of DTDs

M. Benedikt, W. Fan, Floris Geerts
Computer Science, Mathematics
PODS '05
13 June 2005

We study the satisfiability problem associated with XPath in the presence of DTDs. Expand

Graph pattern matching

W. Fan, J. Li, S. Ma, Nan Tang, Y. Wu, Yunpeng Wu
Computer Science
Proc. VLDB Endow.
1 September 2010

We propose a revision of graph pattern matching, based on a class of graph patterns, in which an edge denotes the connectivity in a data graph within a predefined number of hops. Expand

Reasoning about Record Matching Rules

W. Fan, X. Jia, J. Li, S. Ma
Computer Science
Proc. VLDB Endow.
1 August 2009

We introduce a class of matching dependencies (MDs) for specifying the semantics of data in unreliable relations, defined in terms of similarity metrics and a dynamic semantics. Expand

Keys for XML

P. Buneman, S. Davidson, W. Fan, C. Hara, W. Tan
Computer Science
Comput. Networks
5 August 2002

We discuss the definition of keys for XML documents, paying particular attention to the concept of a relative key , which is commonly used in hierarchically structured documents. Expand

Towards certain fixes with editing rules and master data

W. Fan, J. Li, S. Ma, Nan Tang, Wenyuan Yu
Computer Science
The VLDB Journal
2011

We propose a method for finding certain fixes, based on master data, a notion of certain regions, and a class of editing rules. Expand

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