نتایج جستجو برای: algorithms

تعداد نتایج: 327528  

Journal: :international journal of electrical and electronics engineering 0
r. khanteymoori m. m. homayounpour m. b. menhaj

a new structure learning approach for bayesian networks (bns) based on asexual reproduction optimization (aro) is proposed in this letter. aro can be essentially considered as an evolutionary based algorithm that mathematically models the budding mechanism of asexual reproduction. in aro, a parent produces a bud through a reproduction operator; thereafter the parent and its bud compete to survi...

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 :دانشگاه آزاد اسلامی - دانشگاه آزاد اسلامی واحد تهران مرکزی - دانشکده برق و الکترونیک 1390

there are many approaches for solving variety combinatorial optimization problems (np-compelete) that devided to exact solutions and approximate solutions. exact methods can only be used for very small size instances due to their expontional search space. for real-world problems, we have to employ approximate methods such as evolutionary algorithms (eas) that find a near-optimal solution in a r...

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...

Journal: :the journal of tehran university heart center 0
effat soleimani tarbiat modares university, tehran, iran. manijhe mokhtari dizaji tarbiat modares university, tehran, iran. hajir saberi imam khomeini hospital, tehran university of medical sciences, tehran, iran.

background: radial movement of the arterial wall is a well-known indicator of the mechanical properties of arteries in arterial disease examinations. in the present study, two different motion estimation methods, based on the block-matching and maximum-gradient algorithms, were examined to extract the radial displacement of the carotid artery wall. methods: each program was separately implement...

Journal: :international journal of industrial engineering and productional research- 0
parviz fattahi hamedan bahman ismailnezhad hamedan

in this paper, a stochastic cell formation problem is studied using queuing theory framework and considering reliability. since cell formation problem is np-hard, two algorithms based on genetic and modified particle swarm optimization (mpso) algorithms are developed to solve the problem. for generating initial solutions in these algorithms, a new heuristic method is developed, which always cre...

Journal: :international journal of smart electrical engineering 2012
setareh shafaghi reza sabbaghi-nadooshan

nowadays network-on-chips is used instead of system-on-chips for better performance. this paper presents a new algorithm to find a shorter path, and shows that genetic algorithm is a potential technique for solving routing problem for mesh topology in on-chip-network.

Journal: :journal of optimization in industrial engineering 2010
hassan shavandi

in this paper, we develop a capacitated location-covering model considering interval values for demand and service parameters. we also consider flexibility on distance standard for covering demand nodes by the servers. we use the satisfaction degree to represent the constraint of service capacity. the proposed model belongs to the class of mixed integer programming models. our model can be redu...

Journal: :international journal of pediatrics 0
amir jamshidnezhad department of health information technology, faculty of allied health sciences, ahvaz jundishapur university of medical sciences, ahvaz, iran. ahmad azizi department of health information technology, faculty of allied health sciences, ahvaz jundishapur university of medical sciences, ahvaz, iran. saeed shirali department of laboratory sciences, faculty of allied health sciences, ahvaz jundishapur university of medical sciences, ahvaz, iran. sara rekabeslamizadeh department of health information technology, faculty of allied health sciences, ahvaz jundishapur university of medical sciences, ahvaz, iran. maryam haddadzadeh faculty of medicine, ahvaz jundishapur university of medical sciences, ahvaz, iran. yalda sabaghan ahvaz imam educational hospital, ahvaz, iran.

background: acute appendicitis is one of the common and urgent illnesses among children.  children usually are unable to help the physicians completely due to weakness in describing the medical history. moreover, acute appendicitis overlaps with conditions of other diseases in terms of symptoms and signs in the first hours of presentation. these conditions lead to unwanted biases as well as err...

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