Results 61 to 70 of about 4,802 (220)

Intelligent decision support system based on rough set and fuzzy logic approach for efficacious precipitation forecast [PDF]

open access: yesDecision Science Letters, 2017
Weather forecasting is essential and demanding scientific task of meteorological services across the world. It is a complex procedure that includes many specific technological field of study. The prediction is intricate process in meteorology because all
M. Sudha
doaj   +1 more source

Maximal subgroups of free projection‐ and idempotent‐generated semigroups with applications to partition monoids

open access: yesProceedings of the London Mathematical Society, Volume 133, Issue 2, August 2026.
Abstract This paper investigates the maximal subgroups of a free projection‐generated regular ∗$*$‐semigroup PG(P)${{\textsf {PG}}}(P)$ over a projection algebra P$P$, and their relationship to the maximal subgroups of the free idempotent‐generated semigroup IG(E)${{\textsf {IG}}}(E)$ over the corresponding biordered set E=E(P)$E = {{\textsf {E}}}(P)$.
James East   +3 more
wiley   +1 more source

Metric Based Attribute Reduction Method in Dynamic Decision Tables

open access: yesCybernetics and Information Technologies, 2016
Feature selection is a vital problem which needs to be effectively solved in knowledge discovery in databases and pattern recognition due to two basic reasons: minimizing costs and accurately classifying data.
Janos Demetrovics   +3 more
doaj   +1 more source

Neighborhood Attribute Reduction: A Multicriterion Strategy Based on Sample Selection

open access: yesInformation, 2018
In the rough-set field, the objective of attribute reduction is to regulate the variations of measures by reducing redundant data attributes. However, most of the previous concepts of attribute reductions were designed by one and only one measure, which ...
Yuan Gao   +3 more
doaj   +1 more source

Definability of complex functions in o‐minimal structures

open access: yesJournal of the London Mathematical Society, Volume 114, Issue 1, July 2026.
Abstract We prove that holomorphic continuations of functions in the classes an∗$\mathbf {an}^*$ and G$\mathcal {G}$ are definable in the o‐minimal structures Ran∗$\mathbb {R}_{\operatorname{an}^*}$ and RG$\mathbb {R}_{\mathcal {G}}$, respectively. More specifically, we give complex domains on which the holomorphic continuations are definable and show ...
Adele Padgett, Patrick Speissegger
wiley   +1 more source

Solver fast prototyping for reduct-based ELP semantics [PDF]

open access: yes
Over time, various semantic frameworks have emerged for Epistemic Logic Programs (ELPs), which extend Answer Set Programming (ASP) by incorporating epistemic operators.
Costantini S., Formisano A.
core   +2 more sources

A New Method for Decision Making Problems with Redundant and Incomplete Information Based on Incomplete Soft Sets: From Crisp to Fuzzy

open access: yesInternational Journal of Applied Mathematics and Computer Science, 2022
This research is focused on decision-making problems with redundant and incomplete information under a fuzzy environment. Firstly, we present the definition of incomplete fuzzy soft sets and analyze their data structures.
Xia Sisi   +3 more
doaj   +1 more source

Ground‐Motion Characterization for the 2025 U.S. National Seismic Hazard Model for Puerto Rico and the U.S. Virgin Islands

open access: yesEarthquake Spectra, Volume 42, Issue 2, May 2026.
We develop the ground‐motion characterization (GMC) for the 2025 U.S. National Seismic Hazard Model for Puerto Rico and the U.S. Virgin Islands (NSHM‐PRVI) for earthquakes in active crustal, subduction interface, and subduction intraslab regimes. Using ground‐motion models (GMMs) from the Next‐Generation Attenuation (NGA)‐West2 and NGA‐Subduction ...
Morgan P. Moschetti   +9 more
wiley   +1 more source

Filter-wrapper incremental algorithms for finding reduct in incomplete decision systems when adding and deleting an attribute set

open access: yes, 2021
The tolerance rough set model is an effective tool to solve attribute reduction problem directly on incomplete decision systems without pre-processing missing values.
Ngan T.T.   +5 more
core   +1 more source

Does Farm Diversification Enhance Food and Livelihood Security? Evidence From Smallholder Cocoa Farmers in Ghana

open access: yesFood and Energy Security, Volume 15, Issue 3, May/June 2026.
ABSTRACT Farm diversification provides alternative sources of income and helps mitigate risks associated with relying solely on one crop. This study investigated the impact of diversification on the welfare of Ghanaian cocoa farmers. Primary data were collected from 403 smallholder cocoa farmers using a multi‐stage sampling technique and analyzed using
Camillus Abawiera Wongnaa   +3 more
wiley   +1 more source

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