简介:Thepresentpaperemploystechniqueofgeographicalweightedregression(GWR)tomakeanempiricalstudyofChina'sR&Dknowledgespilloversatcitylevel.Conventionalregressionanalysiscanonlyproduce'aver-age'and'global'parameterestimatesratherthan'local'parameterestimateswhichvaryoverspaceinsomespatialsystems.Geographicallyweightedregression(GWR),ontheotherhand,isasimplebutusefulnewtechniquefortheanalysisofspatialnonstationarity.ResultsshowthatthereisasigniicantdifferencebetweenOLSandGWRinestimatingtheparametersofR&Dknowledgeproduction,andthattherelationshipsbetweenlevelofregionalinnovationactivitiesandvariousfactorsshowconsiderablespatialvariability.
简介:院针对当前《复变函数与积分变换》课程的教学现状,引入了基于CDIO教学法在教学中要以学生为主体,充分发挥教师的主导作用,运用MATLAB软件实施教学。
简介:文章给出了拉格朗日n次插值函数的具体做法,初步探讨了拉格朗日插值函数在求余式方面的应用。