Sciweavers

3319 search results - page 34 / 664
» Type Theoretical Databases
Sort
View
93
Voted
PODS
2010
ACM
249views Database» more  PODS 2010»
15 years 2 months ago
Semantic query optimization in the presence of types
Both semantic and type-based query optimization rely on the idea that queries often exhibit non-trivial rewritings if the state space of the database is restricted. Despite their ...
Michael Meier 0002, Michael Schmidt, Fang Wei, Geo...
151
Voted
SIGMOD
2007
ACM
165views Database» more  SIGMOD 2007»
15 years 9 months ago
Statistical analysis of sketch estimators
Sketching techniques can provide approximate answers to aggregate queries either for data-streaming or distributed computation. Small space summaries that have linearity propertie...
Florin Rusu, Alin Dobra
ICSE
2005
IEEE-ACM
15 years 9 months ago
Safe query objects: statically typed objects as remotely executable queries
When building scalable systems that involve general-purpose computation and persistent data, object-oriented languages and relational databases are often essential components. Yet...
William R. Cook, Siddhartha Rai
177
Voted
ICDE
1995
IEEE
164views Database» more  ICDE 1995»
15 years 11 months ago
Efficient Processing of Nested Fuzzy SQL Queries
?In a fuzzy relational database where a relation is a fuzzy set of tuples and ill-known data are represented by possibility distributions, nested fuzzy queries can be expressed in ...
Qi Yang, Chengwen Liu, Jing Wu, Clement T. Yu, Son...
GI
2009
Springer
15 years 2 months ago
Reasoning about Contextual Equivalence: From Untyped to Polymorphically Typed Calculi
: This paper describes a syntactical method for contextual equivalence in polymorphically typed lambda-calculi. Our specific calculus has letrec as cyclic let, data constructors, ...
David Sabel, Manfred Schmidt-Schauß, Frederi...