Results 101 to 110 of about 4,802 (220)

Green's $\mathcal{D}$-relation for the multiplicative reduct of an idempotent semiring

open access: yes, 2000
summary:The idempotent semirings for which Green’s ${\cal D}$-relation on the multiplicative reduct is a congruence relation form a subvariety of the variety of all idempotent semirings.
Pastijn, F., Zhao, Xianzhong
core   +1 more source

Impuls kontrfaktyczny a pamięć kulturowa. Historie alternatywne jako narodowe imaginarium

open access: yesCreatio Fantastica, 2019
The aim of the article is to sketch the perspectives for studying alternate history genre in the context of memory studies, especially the category of cultural memory.
Magdalena Górecka
doaj   +1 more source

Regional differences in HIV prevalence among drug users in China: potential for future spread of HIV? [PDF]

open access: yes, 2008
Kretzschmar M, Zhang W, Mikolajczyk RT, et al. Regional differences in HIV prevalence among drug users in China: potential for future spread of HIV? BMC Infectious Diseases. 2008;8(1):108.Background: Drug use and in particular injecting drug use has been
Weidong Zhang   +20 more
core   +2 more sources

Design of exact reduct rough set hardware accelerator for early-stage diabetes risk prediction

open access: yesResults in Control and Optimization
Diabetes is a prevalent, chronic metabolic disorder worldwide. Detecting and predicting risks early are vital for timely intervention. In this paper, the design and implementation of an Exact Reduct Rough Set Hardware Accelerator is presented for early ...
Kanchan S. Tiwari   +6 more
doaj   +1 more source

A Granular Reduction Algorithm Based on Covering Rough Sets

open access: yesJournal of Applied Mathematics, 2012
The granular reduction is to delete dispensable elements from a covering. It is an efficient method to reduce granular structures and get rid of the redundant information from information systems.
Tian Yang, Zhaowen Li, Xiaoqing Yang
doaj   +1 more source

Positive Region Reduct Based on Relative Discernibility and Acceleration Strategy

open access: yes, 2018
Attribute reduction is one of key issues in rough set theory, and positive region reduct is a classical type of reducts. However, a lot of reduction algorithms have more high time expenses when dealing with high-volume and high-dimensional data sets. To
Longshu Li, Chuanjian Yang, Hao Ge
core   +1 more source

Decomposition-Based Checking and Local Certification for Propositional Circumscription via Minimal Reducts

open access: yesAxioms
Propositional circumscription selects models that are minimal with respect to designated atoms while permitting another set of atoms to vary. For a clause theory φ, minimized atoms P, varied atoms Z, and a candidate interpretation M, the minimal-reduct ...
Zhongtao Xie   +3 more
doaj   +1 more source

Revisiting Vacuous Reduct Semantics for Abstract Argumentation (Extended Version)

open access: yes
We consider the notion of a vacuous reduct semantics for abstract argumentation frameworks, which, given two abstract argumentation semantics σ and τ, refines σ (base condition) by accepting only those σ-extensions that have no non-empty τ-extension in ...
Thimm, Matthias, Blümel, Lydia
core  

基于粗糙集与神经网络的齿轮箱故障诊断

open access: yesJixie chuandong, 2013
A method of combining the rough sets and neural network based on the condition attributes discretization and reduct ion algorithm is proposed to fault diagnosis.
刘慧玲, 潘宏侠, 王爱玉
doaj  

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