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Use este identificador para citar ou linkar para este item: https://repositorio.ufba.br/handle/ri/13940
Tipo: Artigo de Periódico
Título: Data envelopment analysis of reservoir system performance
Título(s) alternativo(s): Computers & Operations Research
Autor(es): Medeiros, Yvonilde Dantas Pinto
Porto, Rubem La Laina
Srdjevic, Bojan
Autor(es): Medeiros, Yvonilde Dantas Pinto
Porto, Rubem La Laina
Srdjevic, Bojan
Abstract: In long-term performance analyses of water systems with surface reservoirs for different operating scenarios, the analyst (or decision maker) is faced with two connected problems: (1) how to handle the extensive output of the simulation model and derive information on the scenarios scores for a prescribed set of performance criteria, and (2) how to compare scenarios in a multi-criterial sense while identifying the most desired. The data sets may overburden the analyst, while an evaluating procedure may be subjective due to personal preferences, attitudes, knowledge and miscellaneous factors. The data envelopment analysis (DEA) approach proposed here seems to be reliable in treating these situations, and sufficiently objective in evaluating and ranking the scenarios. Certain performance indices are defined as evaluating criteria in a standard multi-criterial sense, and then virtually divided into scenarios' output and input measures. By considering scenarios as product units, the DEA optimizes the weights of inputs and outputs, computes productivity efficiency for each unit, and rank them appropriately. Omitting the analyst's personal judgment on the technical parameters that describe system's performance restricts, in this way, the influence of the decision maker. A case study application on the reservoir system in Brazil proved that a methodological connection for solving decision problems with discrete alternatives really exists between the DEA and standard multi-criteria methods.
Palavras-chave: Data envelopment analysis
Reservoir system
Performance
Simulation
Tipo de Acesso: Acesso Aberto
URI: http://repositorio.ufba.br/ri/handle/ri/13940
Data do documento: 2005
Aparece nas coleções:Artigo Publicado em Periódico (MEAU)

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