Results 11 to 20 of about 1,141,336 (343)

Fuzzy regression model using fuzzy partition

open access: yesJournal of Physics: Conference Series, 2019
In this paper, we introduce a novel method to estimate fuzzy regression model when the center and spread have different pattern. We combine the least absolute deviations estimation for the center with discriminant analysis for spread.
Hye-Young Jung   +2 more
openaire   +2 more sources

Partition Coefficient and Partition Entropy in Fuzzy C Means Clustering

open access: yesJournal of Scientific Research and Reports, 2023
This paper offers a comprehensive exploration of partition validation functions, specifically focusing on partition coefficient and partition entropy within the realm of fuzzy clustering—an influential approach in the field of clustering datasets.
Rohit Kumar Verma   +2 more
semanticscholar   +1 more source

Conditional semi‐fuzzy c‐means clustering for imbalanced dataset

open access: yesIET Image Processing, 2020
Fuzzy c‐means algorithms have been widely utilised in several areas such as image segmentation, pattern recognition and data mining. However, the related studies showed the limitations in facing imbalanced datasets. The maximum fuzzy boundary tends to be
Yunlong Gao   +4 more
doaj   +1 more source

A Definition for Hesitant fuzzy Partitions

open access: yesInternational Journal of Computational Intelligence Systems, 2016
In this paper, we define hesitant fuzzy partitions (H-fuzzy partitions) to consider the results of standard fuzzy clustering family (e.g. fuzzy c-means and intuitionistic fuzzy c-means).
Laya Aliahmadipour   +3 more
doaj   +1 more source

Fuzzy Divisive Hierarchical Associative-Clustering Applied to Different Varieties of White Wines According to Their Multi-Elemental Profiles

open access: yesMolecules, 2020
Wine data are usually characterized by high variability, in terms of compounds and concentration ranges. Chemometric methods can be efficiently used to extract and exploit the meaningful information contained in such data.
Ioana Feher   +4 more
doaj   +1 more source

Average-Based Fuzzy Time Series Markov Chain Based on Frequency Density Partitioning

open access: yesJournal of Applied Mathematics, 2023
Fuzzy time series (FTS) is one of the forecasting methods that has been developed until now. The fuzzy time series is a forecasting method that uses the concept of fuzzy logic, which Song and Chissom first introduced.
Susilo Hariyanto   +3 more
doaj   +1 more source

Bipolar Fuzzy Relations

open access: yesMathematics, 2019
We introduce the concepts of a bipolar fuzzy reflexive, symmetric, and transitive relation. We study bipolar fuzzy analogues of many results concerning relationships between ordinary reflexive, symmetric, and transitive relations.
Jeong-Gon Lee, Kul Hur
doaj   +1 more source

Triangular Fuzzy Time Series for Two Factors High-order based on Interval Variations

open access: yesJTAM (Jurnal Teori dan Aplikasi Matematika), 2022
Fuzzy time series (FTS) firstly introduced by Song and Chissom has been developed to forecast such as enrollment data, stock index, air pollution, etc. In forecasting FTS data several authors define universe of discourse using coefficient values with any
A. Nafis Haikal   +4 more
doaj   +1 more source

Possibilistic and fuzzy clustering methods for robust analysis of non-precise data [PDF]

open access: yes, 2017
This work focuses on robust clustering of data affected by imprecision. The imprecision is managed in terms of fuzzy sets. The clustering process is based on the fuzzy and possibilistic approaches.
Ferraro, MARIA BRIGIDA, Giordani, Paolo
core   +1 more source

A Modular Programmable CMOS Analog Fuzzy Controller Chip [PDF]

open access: yes, 1999
We present a highly modular fuzzy inference analog CMOS chip architecture with on-chip digital programmability. This chip consists of the interconnection of parameterized instances of two different kind of blocks, namely label blocks and rule blocks. The
Delgado Restituto, Manuel   +3 more
core   +5 more sources

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