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Candidate Code Calculation of Derived Relation Based on Functional Dependencies [PDF]

open access: yesJisuanji gongcheng, 2016
Candidate code calculation based on the functional dependencies has important uses in many aspects,such as in the snapshot differential algorithms based on the strategy of compression,in the data consistency inspection,in the data inconsistency repairmen
LI Zhanghai,PAN Jiuhui
doaj   +1 more source

An approach for testing the primeness of attributes in relational schemas [PDF]

open access: yesComputer Science Journal of Moldova, 2009
In this paper there is proposed a method of partition the attributes of relation scheme in equivalence classes and in nonredundant equivalence classes. Several properties of these equivalence classes are proved. Their properties serve as the basis for an
Cotelea Vitalie
doaj  

Learning and generalizing non-adjacent dependencies in 18-month-olds: A mechanism for language acquisition? [PDF]

open access: yesPLoS ONE, 2018
The ability to track non-adjacent dependencies (the relationship between ai and bi in an aiXbi string) has been hypothesized to support detection of morpho-syntactic dependencies in natural languages ('The princess is reluctantly kissing the frog').
Ileana Grama, Frank Wijnen
doaj   +1 more source

Poisson's ratio in cryocrystals under pressure [PDF]

open access: yes, 2015
We present results of lattice dynamics calculations of Poisson's ratio (PR) for solid hydrogen and rare gas solids (He, Ne, Ar, Kr and Xe) under pressure.
Alexander F. Goncharov   +6 more
core   +2 more sources

Discovery and Ranking of Functional Dependencies

open access: yesIEEE International Conference on Data Engineering, 2019
Computing the functional dependencies that hold on a given data set is one of the most important problems in data profiling. Utilizing new data structures and original techniques for the dynamic computation of stripped partitions, we devise a new ...
Ziheng Wei, S. Link
semanticscholar   +1 more source

Embedded Functional Dependencies and Data-completeness Tailored Database Design

open access: yesProceedings of the VLDB Endowment, 2019
We establish a principled schema design framework for data with missing values. The framework is based on the new notion of an embedded functional dependency, which is independent of the interpretation of missing values, able to express completeness and ...
Ziheng Wei, S. Link
semanticscholar   +1 more source

Learning Models over Relational Data Using Sparse Tensors and Functional Dependencies [PDF]

open access: yesACM Transactions on Database Systems, 2017
Integrated solutions for analytics over relational databases are of great practical importance as they avoid the costly repeated loop data scientists have to deal with on a daily basis: select features from data residing in relational databases using ...
Mahmoud Abo Khamis   +4 more
semanticscholar   +1 more source

Arrayed CRISPR/Cas9 Screening for the Functional Validation of Cancer Genetic Dependencies

open access: yesBio-Protocol, 2022
CRISPR/Cas9 screening has revolutionized functional genomics in biomedical research and is a widely used approach for the identification of genetic dependencies in cancer cells. Here, we present an efficient and versatile protocol for the cloning of
Ludovica Proietti   +4 more
doaj   +1 more source

Computing Join Queries with Functional Dependencies [PDF]

open access: yesACM SIGACT-SIGMOD-SIGART Symposium on Principles of Database Systems, 2016
Recently, Gottlob, Lee, Valiant, and Valiant (GLVV) presented an output size bound for join queries with functional dependencies (FD), based on a linear program on polymatroids.
Mahmoud Abo Khamis, H. Ngo, Dan Suciu
semanticscholar   +1 more source

Determination of the normalization level of database schemas through equivalence classes of attributes [PDF]

open access: yesComputer Science Journal of Moldova, 2009
In this paper, based on equivalence classes of attributes there are formulated necessary and sufficient conditions that constraint a database schema to be in the second, third or Boyce-Codd normal forms. These conditions offer a polynomial complexity for
Cotelea Vitalie
doaj  

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