Results 21 to 30 of about 3,498,542 (196)

Interpretation and reduction of attribute grammars [PDF]

open access: yesActa Informatica, 1983
An attribute grammar (AG) is in reduced form if in all its derivation trees every attribute contributes to the translation. We prove that, eventhough AG are generally not in reduced form, they can be reduced, i.e., put into reduced form, without modifying their translations. This is shown first for noncircular AG and then for arbitrary AG.
openaire   +2 more sources

Local Indiscernibility Relation Reduction for Information Tables

open access: yesIEEE Access, 2022
Attribute reduction comes from machine learning and is an important component of rough set theory. Research on attribute reduction has produced many important achievements.
Xu Li, Jianguo Tang, Jiyong Tang
doaj   +1 more source

Reduction of attributes in averaged similarities [PDF]

open access: yesInformation Sciences, 2018
Peer ...
Boixader Ibáñez, Dionís   +1 more
openaire   +5 more sources

A Parallel Attribute Reduction Method Based on Classification

open access: yesComplexity, 2021
Parallel processing as a method to improve computer performance has become a development trend. Based on rough set theory and divide-and-conquer idea of knowledge reduction, this paper proposes a classification method that supports parallel attribute ...
Deguang Li, Zhanyou Cui
doaj   +1 more source

Attribute Reduction and Information Granularity [PDF]

open access: yesJournal of Systemics, Cybernetics and Informatics, 2003
In the view of granularity, this paper analyzes the influence of three attribute reducts on an information system, finding that the possible reduct and m - decision reduct will make the granule view coarser, while discernible reduct will not change the ...
Li-hong Wang, Geng-feng Wu
doaj  

Attribute Reduction in Intuitionistic Fuzzy Concept Lattices

open access: yesAbstract and Applied Analysis, 2013
As an effective tool for knowledge discovery, concept lattice has been successfully applied to various fields. And one of the key problems of knowledge discovery is attribute reduction.
Jinzhong Pang, Xiaoyan Zhang, Weihua Xu
doaj   +1 more source

Assessing brand image through communalitites and asymmetries brand-to-attribute and attribute-to-brand associations. [PDF]

open access: yes, 2005
Brand image is a key component of customer-based brand equity, and refers to the associations a consumer holds in memory. Such associations are often directional; one should distinguish between brand-to-attribute and attribute-to-brand associations ...
Torres, Anna   +3 more
core   +1 more source

Research on Attribute Reduction Algorithm in Aquatic Product Safety Assessment System [PDF]

open access: yesJisuanji gongcheng, 2016
Aiming at the complexity and redundancy of the evaluation index in the aquatic product safety assessment system,a new attribute reduction algorithm based on attribute unimportance is proposed.The algorithm uses the method of fusing the positive region ...
E Xu,TAN Yan,LI Jianrong,MAO Meijing,YANG Mingjing
doaj   +1 more source

Neighborhood conditional mutual information entropy attribute reduction algorithm for hybrid data

open access: yes大数据, 2022
Attribute reduction is an important research content of the rough set theory.Its main purpose is to eliminate irrelevant attributes in information systems, reduce data dimensions and improve data knowledge discovery performance.However, most of the ...
Haibo LAN
doaj  

Attribute Reduction in an Incomplete Interval-Valued Decision Information System

open access: yesIEEE Access, 2021
An incomplete interval-valued decision information system (IIVDIS) is a significant type of data decision table, which is ubiquitous in real life. Interval value is a form of knowledge representation, and it seems to be an embodiment of the uncertainty ...
Yiying Chen, Zhaowen Li, Gangqiang Zhang
doaj   +1 more source

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