电影推荐系统，运用协同过滤算法，运行ex8_cofi进入主程序
资源文件列表
cross-filter/checkCostFunction.m , 1620
cross-filter/cofiCostFunc.m , 2471
cross-filter/computeNumericalGradient.m , 1095
cross-filter/ex8_cofi.m , 7093
cross-filter/ex8_movieParams.mat , 201196
cross-filter/ex8_movies.mat , 223396
cross-filter/fmincg.m , 8742
cross-filter/loadMovieList.m , 651
cross-filter/movie_ids.txt , 48444
cross-filter/normalizeRatings.m , 479
cross-filter/visualizeFit.m , 582