modularDistFW.py 文件源码

def update_lam_z(self, main_rdd, cinfo,iStar,Gamma):
        ainv = cinfo
        def update(t, ainv):
            p=[]
            [tpl, gen] = t
            for ((tx,lam,z),index) in tpl:
                znew=0.0
                if gen.random()<self.ptr:
                    znew=-(np.matrix(tx)*ainv*np.matrix(tx).T)[0,0]
                else:
                    znew= 0.0
                zupdtd = (1.0-self.beta)*z + self.beta*znew
                if index != iStar:
                    lamupdt = (1-Gamma)*lam
                else:
                    lamupdt = (1-Gamma)*lam +lam
                p.append(((tx,lamupdt,zupdtd),index))
            out = [p,gen]
            return out

        main_rdd = main_rdd.mapValues(lambda t:update(t,ainv)).persist()
        return main_rdd