نتایج جستجو برای: fuzzy c

تعداد نتایج: 1140376  

The aim of this paper is to introduce $(L,M)$-fuzzy closurestructure where $L$ and $M$ are strictly two-sided, commutativequantales. Firstly, we define $(L,M)$-fuzzy closure spaces and getsome relations between $(L,M)$-double fuzzy topological spaces and$(L,M)$-fuzzy closure spaces. Then, we introduce initial$(L,M)$-fuzzy closure structures and we prove that the category$(L,M)$-{bf FC} of $(L,M...

Journal: :Fuzzy Sets and Systems 1998
Tai Wai Cheng Dmitry B. Goldgof Lawrence O. Hall

This paper presents a multistage random sampling fuzzy c-means based clustering algorithm, which signi cantly reduces the computation time required to partition a data set into c classes. A series of subsets of the full data set are used for classi cation in order to provide an approximation to the nal cluster centers. The quality of the nal partitions is equivalent to that of fuzzy c-means. Th...

2016
David C. Wyld Rehna Kalam Ciza Thomas Abdul Rahiman

Image processing is an important research area in computer vision. clustering is an unsupervised study. clustering can also be used for image segmentation. there exist so many methods for image segmentation. image segmentation plays an important role in image analysis.it is one of the first and the most important tasks in image analysis and computer vision. this proposed system presents a varia...

2012
P. Hari Krishnan

1106 | P a g e Abstract--Image processing plays an important role in medical field because of its capability. Particularly, image segmentation offer several guides in medical field for analyzing the captured image. Usually, the medical images are captured via different medical image acquisition techniques. The captured image may be affected by noise because of some faults in the capturing devis...

2010
S. Vidyavathi

Data mining technology has emerged as a means for identifying patterns and trends from large quantities of data. Clustering is a primary data description method in data mining which group’s most similar data. The data clustering is an important problem in a wide variety of fields. Including data mining, pattern recognition, and bioinformatics. It aims to organize a collection of data items into...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه قم - دانشکده فنی 1393

در این تحقیق به طراحی و پیاده سازی سیستم پایلوت فروش متقاطع در صنعت بیمه ایران پرداخته شده است. بدین منظور از مدل rfm برای تحلیل ارزش مشتریان یکی از شرکت های بیمه ای بزرگ استفاده شده است. مشتریان این شرکت براساس سه متغیر تازگی، تکرار و ارزش پولی بخش بندی شده اند. پس از محاسبه این متغیرها، با استفاده از الگوریتم¬های k-means و fuzzy c-mean مشتریان خوشه بندی شده¬اند. هم چنین وزن هریک از این متغیره...

2014
Samarjit Das Hemanta K. Baruah

In the recent past Kernelized Fuzzy C-Means clustering technique has earned popularity especially in the machine learning community. This technique has been derived from the conventional Fuzzy C-Means clustering technique of Bezdek by defining the vector norm with the Gaussian Radial Basic Function instead of a Euclidean distance. Subsequently the fuzzy cluster centroids and the partition matri...

Journal: :Computers & Mathematics with Applications 2009
Ahmed M. Zahran M. Azab Abd-Allah Kamal El-Saady Abd El-Nasser Ghareeb

Keywords: Double fuzzy topology Double neighborhood systems Double fuzzy preproximity Double fuzzy closure space a b s t r a c t In this paper, we introduce the notions of double neighborhood systems and double fuzzy preproximity in double fuzzy topological spaces. We used double neighborhoods to study the initial structure of double fuzzy topological spaces, and the joins between them and the ...

1975
Brian R. Gaines

It is shown that it is possible to regard stochastic and fuzzy logics as being derived from two different constraints on a probability logic: statistical independence (stochastic) and logical implication (fuzzy). To contrast the merits of the two logics, some published data on a fuzzylogic controller is reanalysed using stochastic logic and it is shown that no significant difference results in ...

2006
SHU-CHEN WANG PEI-HWA HUANG CHI-JUI WU

-This paper presents the application to the identification of coherent generators in a power system based on the fuzzy c-means clustering. In view of the conceptual appropriateness and computational simplicity, the fuzzy c-means give a fast and flexible method for clustering analysis. At first, the coherency measures are derived from the time-domain responses of generators to reveal the relatio...

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