نتایج جستجو برای: data model

تعداد نتایج: 3968676  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه مازندران 1387

چکیده ندارد.

Journal: :ژورنال بین المللی پژوهش عملیاتی 0
gh. tohidi h. taherzadeh

data envelopment analysis (dea) is a technique based on mathematical programming for evaluating the efficiency of homogeneous decision making units (dmus). in this technique, inefficient dmus are projected onto the frontier, which was constructed by the best performers. centralized resource allocation (cra) is a method in which all dmus are projected onto the efficient frontier through solving ...

Journal: :international journal of industrial engineering and productional research- 0
seyed omid hasanpour jesri amirkabir university of tehran, tehran, iran abbas ahmadi amirkabir university of tehran, tehran, iran behrooz karimi amirkabir university of tehran, tehran, iran mohsen akbarpour amirkabir university of tehran, tehran, iran

one of the most important issues in urban planning is developing sustainable public transportation. the basic condition for this purpose is analyzing current condition especially based on data. data mining is a set of new techniques that are beyond statistical data analyzing. clustering techniques is a subset of it that one of it’s techniques used for analyzing passengers’ trip. the result of t...

Journal: :مدیریت آب و آبیاری 0
سلمان شریف آذری مربی گروه مهندسی آب، دانشکدة آب و خاک، دانشگاه زابل، زابل - ایران شهاب عراقی نژاد استادیار گروه مهندسی آبیاری و آبادانی، پردیس کشاورزی و منابع طبیعی، دانشگاه تهران، کرج - ایران

one of the water resources modeling requirements is sufficient knowledge of long-term series of meteorological and hydrological parameters. in this study the nearest neighbor resampling method presented by lall and sharma was developed. in the developed model, the knn regression was used for time series forecasting instead of local polynomial used in the developed algorithm by prairie. in this ...

Journal: :مدیریت صنعتی 0
احمد رضا جعفریان مقدم دانشگاه علم و صنعت ایران کیوان قصیری دانشگاه علم و صنعت ایران

data envelopment analysis (dea) is a managerial powerful tool for assess the performance of decision making units (dmus). nowadays, multi-objective dea models are an attractive technique for evaluation quantity and quality aspects of performance analysis. but these models are in static. in this paper, we want to present a proposed fuzzy dynamic multi-objective dea model in which data are changi...

Journal: :iranian journal of public health 0
asma sabermahani dept. of health economics, school of health management and information sciences, tehran university of medical sciences, tehran, iran. mohsen barouni hesam seyedin aidin aryankhesal

human development index (hdi) is a composite indicator that can show the impact of economic strategies on human life standards. the index is calculated by three main factors of income, education and health. this research studies the status of hdi across the iranian provinces, its changes over time and the efficiency of provinces in using resources.the data for 2001 and 2009 was obtained from th...

A. Mahmoodi Rad, F. Hosseinzadeh Lotfi R. Dehghan

In this paper, we show that inverse Data Envelopment Analysis (DEA) models can be used to estimate output with fuzzy data for a Decision Making Unit (DMU) when some or all inputs are increased and deficiency level of the unit remains unchanged.

Background: In recent years, there has been an increase in the amount and variety of data generated in the field of healthcare, (e.g., data related to the prevalence of contagious diseases in the society). Various patterns of individuals’ relationships in the society make the analysis of the network a complex, highly important process in detecting and preventing the incidence of diseases....

Introduction: Lack of financial resources and liquidity are the main problems of hospitals. Pharmacies are one of the sectors that affect the turnover of hospitals and due to lack of forecast for the use and supply of medicines, at the end of the year, encounter over-inventory, large volumes of expired medicines, and sometimes shortage of medicines. Therefore, medicine prediction using availabl...

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