期刊名称：Journal of Theoretical and Applied Information Technology
印刷版ISSN：1992-8645
电子版ISSN：1817-3195
出版年度：2013
卷号：49
期号：3
出版社：Journal of Theoretical and Applied
摘要：Along with the science research field is more and more wide, solve large-scale over determined system of linear equations has become an important problem , and the parallel processing technology also become the trend of the research. Firstly, this paper introduces the basic principle of the curve fitting least squares serial algorithm, based on the least square principle we found an parallel least squares curve and surface fitting method; Second, further reform the parallel least squares fitting method combined with parallel QR decomposition technique, which solved the problem of over determined linear equations and three dimensional space curved surface fitting. At the end of the paper we compared to scatter diagram and fitting chart with serial and parallel operation time which proves that the advantages and effectiveness of the method through the concrete example.
