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SIGMOD
1995
ACM
116views Database» more  SIGMOD 1995»
14 years 2 days ago
Incremental Maintenance of Views with Duplicates
We study the problem of e cient maintenance of materialized views that may contain duplicates. This problem is particularly important when queries against such views involve aggre...
Timothy Griffin, Leonid Libkin
RSCTC
1993
Springer
96views Fuzzy Logic» more  RSCTC 1993»
14 years 19 days ago
Trusting an Information Agent
: While the common kinds of uncertainties in databases (e.g., null values, disjunction, corrupt/missing data, domain mismatch, etc.) have been extensively studied, a relatively une...
Hasan M. Jamil, Fereidoon Sadri
KBSE
2000
IEEE
14 years 4 days ago
Simultaneous Checking of Completeness and Ground Confluence
c specifications provide a powerful method for the specification of abstract data types in programming languages and software systems. Completeness and ground confluence are fundam...
Adel Bouhoula
POPL
2003
ACM
14 years 8 months ago
Pure patterns type systems
We introduce a new framework of algebraic pure type systems in which we consider rewrite rules as lambda terms with patterns and rewrite rule application as abstraction applicatio...
Gilles Barthe, Horatiu Cirstea, Claude Kirchner, L...
APWEB
2003
Springer
14 years 1 months ago
A Framework for Decentralized Ranking in Web Information Retrieval
Search engines are among the most important applications or services on the web. Most existing successful search engines use global ranking algorithms to generate the ranking of do...
Karl Aberer, Jie Wu