Results 281 to 290 of about 39,182,227 (344)
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Modeling MongoDB with Relational Model
2013 Fourth International Conference on Emerging Intelligent Data and Web Technologies, 2013Relational databases have been prevailing for the last two decades, with features of clear semantics and ease of use with SQL supported by the underlying theory, relational algebra. Relational databases provide good support for structural data management.
Gansen Zhao +3 more
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Adapted Physical Activity Quarterly, 2019
This study aims to explore the perception of students with special needs on inclusion in physical education and identify the factors that facilitate or inhibit their inclusion.
Li-Juan Wang
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This study aims to explore the perception of students with special needs on inclusion in physical education and identify the factors that facilitate or inhibit their inclusion.
Li-Juan Wang
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Distribution Models Of Relations
Fifth International Conference on Very Large Data Bases, 1979., 1979We show how relations can be modelled in fast memory by a distribution of tuples in a multidimensional space. Given distributions for operand relations we derive distributions for the relations that result from applying the relational algebra. We apply the result for the natural join to optimize the evaluation of an expression involving two joins.
T. H. Merrett, Ekow J. Otoo
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The relational model with relation-valued attributes
Information Systems, 1986zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Hans-Jörg Schek, Marc H. Scholl
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Modelling capabilities of fuzzy relational models
The 12th IEEE International Conference on Fuzzy Systems, 2003. FUZZ '03., 2004The paper considers the types of non-linear dynamic systems that can be modeled ideally using a fuzzy relational model. It is shown that it is possible to find values of the rule confidences that guarantee there are no prediction errors at the centres or the input sets, if the behaviour of the non-linear dynamic system can be described by a Hammerstein
Yue Wu, Arthur Dexter
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Transformation of relational model to RDF model
2008 IEEE International Conference on Systems, Man and Cybernetics, 2008The vision of the semantic Web is to give data on the Web a well-defined meaning by representing it in RDF and linking it to commonly accepted ontologies. Today, most data are stored in relational databases. To be able to use these data on the semantic Web we need a flexible but easy to use mechanism to convert relational data to RDF data.
Yanhui Lv, Zongmin Ma 0001
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Relating models of polymorphism
Proceedings of the 16th ACM SIGPLAN-SIGACT symposium on Principles of programming languages - POPL '89, 1989A new general notion of model for the polymorphic lambda calculus based on the simple idea of a universe, is proposed. Although impossible in nonconstructive set theory, the notion is unproblematic for constructive sets, yields completeness and initiality theorems, and can be used to unify and relate many different notions of model that have been ...
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A straightforward formalization of the relational model
Information Systems, 1983There has been a lot of recent interest in the formalization of the relational data model (RDM). Many approaches may be characterized as ones oriented mainly towards declaring the components of the RDM and their interrelationships. Other approaches provide a tool for manipulating the components of RDM so that research topics on the model can be ...
Timo Niemi, Kalervo Järvelin
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Additive models: Extensions and related models [PDF]
, 2012 We give an overview over smooth back tting type estimators in additive models. Moreover we illustrate their wide applicability in models closely related to additive models such as nonparametric regression with dependent error variables where the errors can be transformed to white noise by a linear transformation, nonparametric regression with ...
Mammen, Enno +2 more
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