نتایج جستجو برای: fuzzy clustering algorithm fca and nero

تعداد نتایج: 16943298  

Journal: :journal of optimization in industrial engineering 2010
esmaeil mehdizadeh reza tavakkoli moghaddam

this paper presents a fuzzy decision-making approach to deal with a clustering supplier problem in a supply chain system. during recent years, determining suitable suppliers in the supply chain has become a key strategic consideration. however, the nature of these decisions is usually complex and unstructured. in general, many quantitative and qualitative factors, such as quality, price, and fl...

Journal: :IJSSMET 2015
Amira Aloui Amel Grissa-Touzi

Flexible queries have recently received increasing attention to better characterize the data retrieval. In this paper, a new flexible querying approach using ontological knowledge is proposed. This approach presents an FCA based methodology for building ontologies from scratch then interrogating them intelligently through the fusion of conceptual clustering, fuzzy logic, and FCA. The main contr...

2014
Dr. M. SENTHIL Dr. P. SIVAKUMAR T. C. INDHUMATHI

In order to achieve data information, the Sensor Node’s should form into small groups as clusters in wireless sensor network. In Multi-hop sensor network, the Base-Station (sink) is might not be considered. That is why, the hot-spot problem may occur in this network. In this paper, we analyze the sleep & wakeup approach, in order to avoid the hot spot (WLAN) problem, which aims to increase the ...

2008
Kyoung-Mo Yang Eung-Hee Kim Suk-Hyung Hwang Sung-Hee Choi

Data Mining(also known as Knowledge Discovery) is defined as the non-trivial extraction of implicit, previously unknown, and potentially useful information from data. It includes not only methods for extracting information from the given data, but also visualizing the information. Formal Concept Analysis(FCA) is one of Data mining research fields, and it has been applied to a number of areas su...

1999
R. Baumgartner L. Ryner W. Richter R. Summers M. Jarmasz R. Somorjai

Exploratory data-driven methods such as Fuzzy clustering analysis (FCA) and Principal component analysis (PCA) may be considered as hypothesis-generating procedures that are complementary to the hypothesis-led statistical inferential methods in functional magnetic resonance imaging (fMRI). Here, a comparison between FCA and PCA is presented in a systematic fMRI study, with MR data acquired unde...

Journal: :پژوهش های علوم و صنایع غذایی ایران 0
mahmoud sadeghi masoud yavarmanesh mostafa shahidi nojhabi

nowadays, it has demonstrated that viruses can be transmitted by water and foods. therefore, it causes the research to develop for detecting different viruses in water and foods. among foods, milk can transfer potentially pathogenic viruses. on the other hand, to achieve every method for recovery and extraction of viruses in raw milk it needs to know about impact of milk components on viruses. ...

ژورنال: علوم آب و خاک 2014
حسام, موسی , دهقانی, امیر احمد , دهقانی, نوید , عبدی دهکردی, مهری , مفتاح هلقی, مهدی , کاهه, مهدی ,

In many water resource projects such as dams, flood control, navigability, river aesthetics, environmental issues and the estimation of suspended load have great importance. The complexity of sediment behavior and mathematical and physical model inability in simulation of sedimentation processes have led to the development of new technologies such as fuzzy logic which has the ability to identif...

Journal: :iranian journal of fuzzy systems 2014
p. moallem n. razmjooy b. s. mousavi

potato image segmentation is an important part of image-based potato defect detection. this paper presents a robust potato color image segmentation through a combination of a fuzzy rule based system, an image thresholding based on genetic algorithm (ga) optimization and morphological operators. the proposed potato color image segmentation is robust against variation of background, distance and ...

Journal: :journal of advances in computer research 0
masoumeh pourhasan department of computer engineering, faculty of engineering, chalous branch, islamic azad university, chalous, mazandaran, iran abbas karimi department of computer engineering, faculty of engineering, arak branch, islamic azad university, arak, markazi, iran

some applications are critical and must designed fault tolerant system. usually voting algorithm is one of the principle elements of a fault tolerant system. two kinds of voting algorithm are used in most applications, they are majority voting algorithm and weighted average algorithm these algorithms have some problems. majority confronts with the problem of threshold limits and voter of weight...

Journal: :iranian journal of fuzzy systems 2008
e. mehdizadeh s. sadi-nezhad r. tavakkoli-moghaddam

this paper presents an efficient hybrid method, namely fuzzy particleswarm optimization (fpso) and fuzzy c-means (fcm) algorithms, to solve the fuzzyclustering problem, especially for large sizes. when the problem becomes large, thefcm algorithm may result in uneven distribution of data, making it difficult to findan optimal solution in reasonable amount of time. the pso algorithm does find ago...

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