نتایج جستجو برای: n4b4 cluster

تعداد نتایج: 201863  

Journal: :روش های عددی در مهندسی (استقلال) 0
سید تقی اخوان نیاکی و سید حسین ایران منش seyed h. iran-manesh and seyed t. a. niaki

in this paper an application of the cluster analysis technique in educational planning is demonstrated by means of a developed computer software with some characteristics of an expert system. the main idea is based on the knowledge-based systems which have been applied in group technology. the software is applied to weekly schedules of the courses and professors of the industrial engineering de...

Journal: :توسعه کارآفرینی 0
غلامحسین عبدالله زاده استادیار دانشگاه علوم کشاورزی و منابع طبیعی گرگان محمد شریف شریف زاده دانشیار دانشگاه علوم کشاورزی و منابع طبیعی گرگان ابوالقاسم عربیون استادیار دانشکدة کارآفرینی دانشگاه تهران

this paper aimed to identify and explain ethical components of agri-business based on perception cluster analysis of agri-business’ managers and owners. mixed method approach was employed. target population contains all the entrepreneurs, owners and mangers of agri-business in golestan province. in first phase, using qualitative semi-structured interview, the respondents’ perception about ethic...

Journal: :journal of computer and robotics 0
peyman rasouli faculty of computer and information technology engineering, qazvin branch, islamic azad university, qazvin, iran mohammad reza meybodi department of computer engineering, amirkabir university of technology, tehran, iran

image segmentation is an important task in image processing and computer vision which attract many researchers attention. there are a couple of information sets pixels in an image: statistical and structural information which refer to the feature value of pixel data and local correlation of pixel data, respectively. markov random field (mrf) is a tool for modeling statistical and structural inf...

Journal: :پژوهش های جغرافیای انسانی 0
ابوالفضل مشکینی استادیار گروه جغرافیا و برنامه ریزی شهری، دانشکدۀ علوم انسانی دانشگاه تربیت مدرس محمد علی خلیجی مربی گروه شهرسازی، دانشگاه آزاد اسلامی واحد تبریز

extended abstractintroductionhousing is more than a mere physical shelter and be included all public facilities and services necessary to live better human being and be sure to provide a relatively long tenure. in persian housing means place of peace and quiet. residential space in underlying a safe and healthy family environment. today, despite the development of technology and communication, ...

Journal: :پژوهش های کاربردی روانشناختی 0

procrastination is a widespread phenomenon that has been associated with the most of cognitive, emotional, and motivational factors, about which a clear and integrated picture is still lacking, though. the aim of this study was to use primary established psychological procrastination-related factors in the base of ellis cognitive emotional behavioral approach to examine whether reliable subgrou...

Journal: :تحقیقات نظام سلامت 0
امیر کاوسی دانشیار آمار، گروه علوم پایه، دانشکده سلامت، ایمنی و محیط زیست، دانشگاه علوم پزشکی شهید بهشتی، تهران، ایران یوسف بشیری دانشجوی کارشناسی ارشد، گروه آمار زیستی، دانشکده پیراپزشکی، دانشگاه علوم پزشکی شهید بهشتی، تهران، ایران یداله محرابی استاد آمار زیستی، گروه اپیدمیولوژی ، دانشکده بهداشت، دانشگاه علوم پزشکی شهید بهشتی، تهران، ایران کوروش اعتماد استادیار اپیدمیولوژی، گروه اپیدمیولوژی ، دانشکده بهداشت، دانشگاه علوم پزشکی شهید بهشتی، تهران، ایران

abstract background: in iran gastric cancer is the second most common cancer and the most cause of death cancer, the aim of this study is provide map geographical distribution of gastric cancer and detect high risk cluster with use of space-time scan statistic. methods: this was an applied study. the data is provided from reports published by center for disease control office in ministry of hea...

Journal: :Control and Cybernetics 2009
Eirini Ntoutsi Myra Spiliopoulou Yannis Theodoridis

Clustering algorithms detect groups of similar population members, like customers, news or genes. In many clustering applications the observed population evolves and changes, subject to internal and external factors. Detecting and understanding change is important for decision support. We extend our earlier framework MONIC for cluster transition modeling and detection, into MONIC for cluster-ty...

2001
Heiko Timm Christian Borgelt Christian Döring Rudolf Kruse

We explore an approach to possibilistic fuzzy c-means clustering that avoids a severe drawback of the conventional approach, namely that the objective function is truly minimized only if all cluster centers are identical. Our approach is based on the idea that this undesired property can be avoided if we introduce a mutual repulsion of the clusters, so that they are forced away from each other....

Journal: :تحقیقات جغرافیایی 0
مجید منتظری مجید منتظری مجید منتظری

the main objective of this study was to investigate how months cluster in any thermal regions based on temperature. for this purpose, the mean of daily temperature data have been provided using 620 synoptic and climatology stations. then, mean temperature was converted for any station, based on solar calendar, and maps of mean daily temperature have been interpolated using kriging method. spati...

Journal: :international journal of data envelopment analysis 2013
i. mansouri s. mamizadeh-chatghayeh v. abbasi p. barahimi a. r. tahmouresi

every country actively and initiatively takes all kinds of policy steps to improve the international competitiveness of its industries and therefore improve national integrated competitiveness for the purpose of gaining economic benefits under the context of economic globalization. therefore, studies of moreover, projects launched by the cluster had to be endorsed by the growers and one criteri...

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