نتایج جستجو برای: based clustering

تعداد نتایج: 2991625  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه علامه طباطبایی - دانشکده اقتصاد 1389

this thesis is a study on insurance fraud in iran automobile insurance industry and explores the usage of expert linkage between un-supervised clustering and analytical hierarchy process(ahp), and renders the findings from applying these algorithms for automobile insurance claim fraud detection. the expert linkage determination objective function plan provides us with a way to determine whi...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس - دانشکده فنی مهندسی 1387

the outcome of this research is a practical framework for “idea generation phase of new product development process based on customer knowledge”. in continue, the mentioned framework implemented in a part of iran n.a.b market and result in segmenting and profiling this market. also, the critical new product attributes and bases of communication message and promotion campaigns extracted. we have...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شیراز - دانشکده آموزشهای الکترونیکی 1391

در این پروژه، ابتدا سه پروتکل از پروتکل های مسیر یابی شبکه حسگر بی سیم با دو متریک طول عمر شبکه (life time) و میانگین مصرف انرژی با هم مقایسه می شوند و سپس یک پروتکل ارتباطی جدید با لحاظ کردن مصرف انرژی پایین برای شبکه های حسگر بی سیم ارائه می شود که بار انرژی یکنواختی را میان حسگر ها توزیع می کند . این پروتکل، از نوع پروتکل های مبتنی بر خوشه بندی (clustering-based) است که شبکه را به چند ناحیه ...

Journal: :iranian journal of public health 0
m farhadian h mahjub a moghimbeigi j poorolajal gh sadri

background: the two most frequently diagnosed cancers among women worldwide are breast and cervical cancers. the objective of the present study was to classify the different countries based on the death rates from sex specific cancers. methods : in this cross-sectional study, we used dataset regarding death rate from breast, cervical, uterine, and ovarian cancers in 190 countries worldwide repo...

In recent years, the tremendous and increasing growth of spatial trajectory data and the necessity of processing and extraction of useful information and meaningful patterns have led to the fact that many researchers have been attracted to the field of spatio-temporal trajectory clustering. The process and analysis of these trajectories have resulted in the extraction of useful information whic...

Journal: :مهندسی صنایع 0
بهروز مینائی دانشیار دانشکده مهندسی کامپیوتر- دانشگاه علم و صنعت ایران محمد فتحیان دانشیار دانشکده مهندسی صنایع- دانشگاه علم و صنعت ایران احمدرضا جعفریان مقدم دانشجوی دکترای دانشکده مهندسی صنایع دانشگاه علم و صنعت ایران و مدیر پروژه توسعه نرم افزار شرکت مهندسی شبکه پویش داده نوین مهدی نصیری دانشجوی دکترای مهندسی کامپیوتر دانشگاه علم و صنعت ایران

clustering technique is one of the most important techniques of data mining and is the branch of multivariate statistical analysis and a method for grouping similar data in to same clusters. with the databases getting bigger, the researchers try to find efficient and effective clustering methods so that they can make fast and real decisions. thus, in this paper, we proposed an improved ant syst...

The increasingly larger scale of available data and the more restrictive concerns on their privacy are some of the challenging aspects of data mining today. In this paper, Entropy-based Consensus on Cluster Centers (EC3) is introduced for clustering in distributed systems with a consideration for confidentiality of data; i.e. it is the negotiations among local cluster centers that are used in t...

Journal: :journal of advances in computer research 0
fozieh asghari paeenroodposhti department of computer engineering, sari branch, islamic azad university, sari, iran saber nourian department of electrical engineering, sari branch, islamic azad university, sari, iran muhammad yousefnezhad college of computer science and technology, nanjing university of aeronautics and astronautics, nanjing, china

the wisdom of crowds, an innovative theory described in social science, claims that the aggregate decisions made by a group will often be better than those of its individual members if the four fundamental criteria of this theory are satisfied. this theory used for in clustering problems. previous researches showed that this theory can significantly increase the stability and performance of lea...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه پیام نور - دانشگاه پیام نور استان همدان - دانشکده ادبیات و علوم انسانی 1390

abstract this study is an attempt to determine the effect of nano- technology education on science lesson for fifth grade in primary school in the city of kermanshah. this research is experimental and is conducted in the from of pre-test and post- test for the control group. an achievement test was administered to determine the rate of learning in the students. the research is an applied one. ...

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