Results 1  10
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63,668
An Extended Relational Algebra with Control over Duplicate Elimination
 In ACM PODS
, 1982
"... In the pure relational model, duplicate tuples are automatically eliminated. Some real world languages such as DAPLEX, however, give users control over duplicate elimination. This paper extends the relational model to include multiset relations, i.e., relations with duplicate tuples. It considers t ..."
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Cited by 35 (1 self)
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three formalisms for expressing queries in this model: extended relational algebra, tableaux, and DAPLEX. It shows that, as in the original algebra, the equivalence problem for conjunctive expressions in the extended algebra can be solved using tableaux, and is NPcomplete. Finally, it demonstrates
Builtin Predicates for Extended Relational Algebra Operations in a Logic Database Language
, 1994
"... Existing rulebased nested relational database query languages do not provide builtin predicates for extended relational algebra operations. As a result, these query languages lack these traditional operators and are thus less convenient for query specifiers who recognize the expressive advantage o ..."
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Cited by 1 (1 self)
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Existing rulebased nested relational database query languages do not provide builtin predicates for extended relational algebra operations. As a result, these query languages lack these traditional operators and are thus less convenient for query specifiers who recognize the expressive advantage
M.: Distancebased learning over extended relational algebra structures
 In: Proceedings of the 15th International Conference of Inductive Logic Programming. (2005
"... Abstract. In (Kalousis et al., 2005) we presented a novel unifying framework for relational distancebased learning where learning examples are stored in a relational database. This approach is based on concepts from relational algebra and exploits the notion of foreign keys associations to define a ..."
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Cited by 6 (1 self)
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a new attribute of type set. We defined several relational distances whose blocks are distances between tuples of relations and distances between sets. In this paper we extend this relational algebra representation language such that it allows for modeling of lists of complex objects (relational
Extending relational algebra to express onetomany data transformations
 In 20th Brasillian Symposium on Databases SBBD’05
, 2005
"... Abstract. Application scenarios such as legacydata migration, ETL processes, data cleaning and dataintegration require the transformation of input tuples into output tuples. Traditional approaches for implementing these data transformations enclose solutions as Persistent Stored Modules (PSM) exec ..."
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Cited by 1 (1 self)
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operator as an extension to the relational algebra to address this important class of data transformations. We demonstrate that relational algebra extended with the mapper operator is more expressive than standard relational algebra. Furthermore, we investigate several properties of the operator and supply
An Extended Set of Fortran Basic Linear Algebra Subprograms
 ACM TRANSACTIONS ON MATHEMATICAL SOFTWARE
, 1986
"... This paper describes an extension to the set of Basic Linear Algebra Subprograms. The extensions are targeted at matrixvector operations which should provide for efficient and portable implementations of algorithms for high performance computers. ..."
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Cited by 523 (68 self)
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This paper describes an extension to the set of Basic Linear Algebra Subprograms. The extensions are targeted at matrixvector operations which should provide for efficient and portable implementations of algorithms for high performance computers.
A MultiSet Extended Relational Algebra A Formal Approach to a Practical Issue
"... The relational data model is based on sets of tuples, i.e. it does not allow duplicate tuples in a relation. Many database languages and systems do require multiset semantics though, either becawe of functional requirements or because of the high costs of duplicate removal in database operations. ..."
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complete extended relational algebra with multiset semantics, having a clear formal background and a close connection to the standard relational algebra. It includes constructs that extend the algebra to a complete sequential database manipulation language that can either be used as a formal background
A MultiSet Extended Relational Algebra A Formal Approach to a Practical Issue
"... The relational data model is based on sets of tuples, i.e. it does not allow duplicate tuples in a relation. Many database languages and systems do require multiset semantics though, either because of functional requirements or because of the high costs of duplicate removal in database operations. ..."
Abstract
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complete extended relational algebra with multiset semantics, having a clear formal background and a close connection to the standard relational algebra. It includes constructs that extend the algebra to a complete sequential database manipulation language that can either be used as a formal background
Possessions and the Extended Self
 Journal of Consumer Research
, 1988
"... Our possessions are a major contributor to and reflection of our identities. A variety of evidence is presented supporting this simple and compelling premise. Related streans of research are identified and drawn upon in devetopJng this concept and implications are derived for consumer behavior. Beca ..."
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Cited by 652 (1 self)
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Our possessions are a major contributor to and reflection of our identities. A variety of evidence is presented supporting this simple and compelling premise. Related streans of research are identified and drawn upon in devetopJng this concept and implications are derived for consumer behavior
Representation Theory of Artin Algebras
 Studies in Advanced Mathematics
, 1994
"... The representation theory of artin algebras, as we understand it today, is a relatively new area of mathematics, as most of the main developments have occurred ..."
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Cited by 645 (10 self)
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The representation theory of artin algebras, as we understand it today, is a relatively new area of mathematics, as most of the main developments have occurred
An algebraic approach to network coding
 IEEE/ACM TRANSACTIONS ON NETWORKING
, 2003
"... We take a new look at the issue of network capacity. It is shown that network coding is an essential ingredient in achieving the capacity of a network. Building on recent work by Li et al., who examined the network capacity of multicast networks, we extend the network coding framework to arbitrary n ..."
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Cited by 858 (88 self)
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We take a new look at the issue of network capacity. It is shown that network coding is an essential ingredient in achieving the capacity of a network. Building on recent work by Li et al., who examined the network capacity of multicast networks, we extend the network coding framework to arbitrary
Results 1  10
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63,668