@MastersThesis{CostaRamo:1977:UtTéPr,
               author = "Costa, Jos{\'e} Carlos de Paula Magalh{\~a}es and Ramos, Welton 
                         Carlos",
                title = "Utiliza{\c{c}}{\~a}o das t{\'e}cnicas de 
                         programa{\c{c}}{\~a}o n{\~a}o-linear em problemas de grande 
                         dimens{\~a}o",
               school = "Instituto Nacional de Pesquisas Espaciais (INPE)",
                 year = "1977",
              address = "S{\~a}o Jos{\'e} dos Campos",
                month = "1977-04-15",
             keywords = "computa{\c{c}}{\~a}o aplicada, algoritmos, 
                         programa{\c{c}}{\~a}o n{\~a}o-linear, sistemas de 
                         pot{\^e}ncia, geod{\'e}sia, economia.",
             abstract = "OBS.: Est{\~a}o faltando as p{\'a}ginas 114 e 115 no PDF. Este 
                         trabalho apresenta aplica{\c{c}}{\~o}es de m{\'e}todos, de 
                         otimiza{\c{c}}{\~a}o em problemas importantes e de grandes 
                         dimens{\~o}es pertencentes a tr{\^e}s {\'a}reas distintas: 
                         Sistemas de Pot{\^e}ncia; Economia e Geod{\'e}sia. Utilizamos 
                         para a solu{\c{c}}{\~a}o dos problemas restritos pertencentes 
                         {\'a}s duas primeiras {\'a}reas, m{\'e}todos de 
                         transforma{\c{c}}{\~a}o combinados com m{\'e}todos de 
                         gradientes conjugados e, para o problema irrestrito referente 
                         {\`a} terceira {\'a}rea, apenas m{\'e}todos de gradientes 
                         conjugados. Procuramos ressaltar a potencialidade dos m{\'e}todos 
                         de transforma{\c{c}}{\~a}o devido a simplicidade de 
                         implementa{\c{c}}{\~a}o e, particularmente em um problema da 
                         terceira {\'a}rea, a efici{\^e}ncia computacional do m{\'e}todo 
                         de Fletcher-Reeves para otimiza{\c{c}}{\~a}o de 
                         fun{\c{c}}{\~o}es quadr{\'a}ticas com matriz esparsa, qm que 
                         s{\~a}o utilizados esquemas especiais de armazenamento. Para o 
                         problema da segunda {\'a}rea, {\'e} apresentada uma 
                         compara{\c{c}}{\~a}o com os resultados obtidos usando o 
                         m{\'e}todo de Beale. ABSTRACT: This work presents of optimization 
                         methods in important problems of large dimension. These problems 
                         belong to three areas: Power Systems, Economics and Geodsy. For 
                         the solution of the constrained problems belonging to the first 
                         two areas, transformation methods together with conjugated 
                         gradient methods were used. For the unconstrained problem of the 
                         third area, only conjugsted gradient method were used. The broad 
                         applications of the transformation methods, were emphasized due to 
                         easiness of implementation. Particularly in a problem of the third 
                         area, the computational eficiency of the Fletcher-Reeves method 
                         for optimization of quadratic function with sparse matriz was 
                         emphasized. In this problem special storage schemes were used. A 
                         comparison with an existing code of Beale's Method was also 
                         performed, in the problem on the second area.",
            committee = "Dias, Luiz Alberto Vieira (presidente) and Rechtschaffen, Edgar E. 
                         M. (orientador) and Pacca, Marcos Jos{\'e} de Aquino Pinto and 
                         Silva, Jo{\~a}o Mello da and Delfino, Wilson Carlos Duarte and 
                         Gielow, Ralf",
           copyholder = "SID/SCD",
         englishtitle = "x",
             language = "pt",
                pages = "262",
                  ibi = "8JMKD3MGP8W/35LP6RE",
                  url = "http://urlib.net/ibi/8JMKD3MGP8W/35LP6RE",
           targetfile = "publicacao.pdf",
        urlaccessdate = "29 abr. 2024"
}