Results 21 to 30 of about 173,381 (281)

Study on intelligent analysis algorithm for achieving standard of polymer flooding well group [PDF]

open access: yesE3S Web of Conferences, 2022
In order to master the development effect of polymer flooding well group, it is necessary to accurately analyze the influence of different factors in the whole polymer flooding process on the development index.
Wang Hanqiang
doaj   +1 more source

An Optimization of Master S-N Curve Fitting Method Based on Improved Neighborhood Rough Set

open access: yesIEEE Access, 2021
In this paper, a novel master S-N curve fitting method based on improved neighborhood rough set is proposed. The neighborhood relationship is used to granulate the fatigue information system of aluminum alloy welded joints, and the neighborhood rough set
Li Zou   +3 more
doaj   +1 more source

A clustering particle swarm optimizer for dynamic optimization [PDF]

open access: yes, 2009
This article is posted here with permission of the IEEE - Copyright @ 2009 IEEEIn the real world, many applications are nonstationary optimization problems.
Li, C, Yang, S
core   +3 more sources

Incomplete neighbourhood multi-granulation decision-theoretic rough set in the hybrid-valued decision system

open access: yesThe Journal of Engineering, 2019
It is an important subject to mine valuable knowledge from complex and massive data in the era of big data. Rough set theory is a new mathematical tool for dealing with uncertain and inaccurate data, decision-theoretic rough set model (DTRS), as an ...
Jiajun Chen   +3 more
doaj   +1 more source

NMGRS: Neighborhood-based multigranulation rough sets

open access: yesInternational Journal of Approximate Reasoning, 2012
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Lin, Guoping, Qian, Yuhua, Li, Jinjin
openaire   +1 more source

Rough Set Model based on Union Neighborhood

open access: yesJOURNAL OF INTERNATIONAL ACADEMY OF PHYSICAL SCIENCES, 2023
The rough set idea was presented asan approach to deal with the ambiguity or uncertainty of the data in information systems. The neighborhood (nbd) system is an essential tool for reducing the boundary area and increasing the accuracy of the measurement. The main focus of the present paperis to introduce the new type of union nbds (briefly, ??
Alka Tripathi, Priti Madan
openaire   +1 more source

On Topological Properties of Generalized Rough Approximation Operators [PDF]

open access: yesJisuanji kexue, 2022
Rough set theory is a mathematical tool for dealing with uncertain information.The core notions of rough set theory is approximation operators of approximation spaces.Pawlak approximation operators are established by using equivalence relations on the ...
LI Yan-yan, QIN Ke-yun
doaj   +1 more source

Six-Set Approximation Theorem of neighborhood related rough sets

open access: yesInternational Journal of Approximate Reasoning, 2019
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Ma, Liwen, Lu, Hui
openaire   +2 more sources

Attribute Reduction of Boolean Matrix in Neighborhood Rough Set Model

open access: yesInternational Journal of Computational Intelligence Systems, 2020
Neighborhood rough set is a powerful tool to deal with continuous value information systems. Graphics processing unit (GPU) computing can efficiently accelerate the calculation of the attribute reduction and approximation sets based on matrix.
Yan Gao, Changwei Lv, Zhengjiang Wu
doaj   +1 more source

Ecological Invasion, Roughened Fronts, and a Competitor's Extreme Advance: Integrating Stochastic Spatial-Growth Models [PDF]

open access: yes, 2009
Both community ecology and conservation biology seek further understanding of factors governing the advance of an invasive species. We model biological invasion as an individual-based, stochastic process on a two-dimensional landscape.
A. Allstadt   +122 more
core   +1 more source

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