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ECSQARU
2001
Springer
14 years 1 days ago
Supporting Changes in Structure in Causal Model Construction
The term “changes in structure,” originating from work in econometrics, refers to structural modifications invoked by actions on a causal model. In this paper we formalize the...
Tsai-Ching Lu, Marek J. Druzdzel
PODS
2009
ACM
86views Database» more  PODS 2009»
14 years 8 months ago
Reverse data exchange: coping with nulls
An inverse of a schema mapping M is intended to "undo" what M does, thus providing a way to perform "reverse" data exchange. In recent years, three different f...
Ronald Fagin, Phokion G. Kolaitis, Lucian Popa, Wa...
CSMR
2005
IEEE
14 years 1 months ago
Maintenance and Analysis of Visual Programs -- An Industrial Case
A domain-specific visual language, Function Block Language (FBL), is used in Metso Automation for writing automation control programs. The same engineering environment is used for...
Mika Karaila, Tarja Systä
ADBIS
2007
Springer
119views Database» more  ADBIS 2007»
14 years 1 months ago
Combining Efficient XML Compression with Query Processing
This paper describes a new XML compression scheme that offers both high compression ratios and short query response time. Its core is a fully reversible transform featuring substit...
Przemyslaw Skibinski, Jakub Swacha
VLDB
2009
ACM
381views Database» more  VLDB 2009»
14 years 7 months ago
Lazy Updates: An Efficient Technique to Continuously Monitoring Reverse kNN
In this paper, we study the problem of continuous monitoring of reverse k nearest neighbor queries. Existing continuous reverse nearest neighbor monitoring techniques are sensitive...
Muhammad Aamir Cheema, Xuemin Lin, Ying Zhang, Wei...