نتایج جستجو برای: clustering

تعداد نتایج: 102936  

Nowadays, the Fuzzy C-Means method has become one of the most popular clustering methods based on minimization of a criterion function. However, the performance of this clustering algorithm may be significantly degraded in the presence of noise. This paper presents a robust clustering algorithm called Bilateral Weighted Fuzzy CMeans (BWFCM). We used a new objective function that uses some k...

Journal: :journal of advances in computer engineering and technology 0
farzaneh famoori department of computer engineering, islamic azad university, kerman branch. kerman, iran. vahid khatibi bardsiri department of computer engineering, islamic azad university, kerman branch shima javadi moghadam department of computer engineering, islamic azad university, kerman branch, krman, iran. fakhrosadat fanian department of computer engineering, islamic azad university, kerman branch, kerman iran.

one of the most important aspects of software project management is the estimation of cost and time required for running information system. therefore, software managers try to carry estimation based on behavior, properties, and project restrictions. software cost estimation refers to the process of development requirement prediction of software system. various kinds of effort estimation patter...

Journal: :journal of optimization in industrial engineering 2012
amin parvaneh hossein abbasimehr mohammad jafar tarokh

data mining techniques have been used widely in the area of customer relationship management (crm). in this study, we have applied data mining techniques to address a problem in business-to-business (b2b) setting. in a manufacturer-retailer-consumer chain, a manufacturer should improve its relationship with retailers to continue its business. segmentation is a useful tool for identifying groups...

Artificial immune system (AIS) is one of the most meta-heuristic algorithms to solve complex problems. With a large number of data, creating a rapid decision and stable results are the most challenging tasks due to the rapid variation in real world. Clustering technique is a possible solution for overcoming these problems. The goal of clustering analysis is to group similar objects. AIS algor...

Clustering techniques are used to extract the structure of software for understanding, maintaining, and refactoring. In the literature, most of the proposed approaches for software clustering are divided into hierarchical algorithms and search-based techniques. In the former, clustering is a process of merging (splitting) similar (non-similar) clusters. These techniques suffered from the drawba...

, J. Safarian-Dastjerdi and A. Saidi,

A higher bustle temperature in midrex direct reduction process is always desirable due to its positive effect on the productivity and DRI quality. The limit of the bustle temperature is related to the sticking or clustering behaviour of oxide pellets during the reduction in the reactor. It has been well estabilished that coating of oxide pellets by a refractory material decreases its&#10tendenc...

, J. Safarian-Dastjerdi and A. Saidi,

A higher bustle temperature in midrex direct reduction process is always desirable due to its positive effect on the productivity and DRI quality. The limit of the bustle temperature is related to the sticking or clustering behaviour of oxide pellets during the reduction in the reactor. It has been well estabilished that coating of oxide pellets by a refractory material decreases its tendency ...

Journal: :journal of plant molecular breeding 2015
farnaz goodarzi reza darvishzadeh abbas hassani

castor (ricinus communis l.) is one of the most ancient medicinal oil crops in the world. it has been vastly distributed in different parts of iran. in the present study, the inter simple sequence repeat (issr) markers were used to evaluate the molecular genetic diversity among and within 12 castor accessions collected from 7 regions of iran. totally, 16 issr primers amplified 166 loci, of whic...

Journal: :journal of paramedical sciences 0
hakimeh zali proteomics research center, faculty of paramedical sciences, shahid beheshti university of medical sciences, tehran mostafa rezaei tavirani proteomics research center, faculty of paramedical sciences, shahid beheshti university of medical sciences, tehran farid azizi jalilian dept of clinical microbiology, faculty of medicine, ilam university of medical sciences, ilam reza khodarahmi medical biology research center, kermanshah university of medical sciences, kermanshah

because of the huge amounts of proteomic data and demand for new methods of laboratory analysis results, proteins collective analysis, in addition to taking less time, biostatistician assist at identification of new patterns in the data set. in this study, rat hippocampus proteome in normal and alzheimer's disease (ad) were analyzed by using proteomic techniques and bioinformatics’ analysis. pr...

Journal: :journal of medical signals and sensors 0
abdoljalil addeh ata ebrahimzadeh

breast cancer is the second largest cause of cancer deaths among women. at the same time, it is also among the most curable cancer types if it can be diagnosed early. this paper presents a novel hybrid intelligent method for recognition of breast cancer tumors. the proposed method includes three main modules: the feature extraction module, the classifier module and the optimization module. in t...

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