Esempio n. 1
0

if __name__ == '__main__':
    time_slice = 4
    train = 0.5
    # beijing = (39.433333, 41.05, 115.416667, 117.5)
    # haidian = (39.883333, 40.15, 116.05, 116.383333)
    # region = (39.88, 40.03, 116.05, 116.25)
    # region = (39.88, 40.05, 116.05, 116.26)
    region = (39.88, 40.05, 116.05, 116.26)
    cluster_radius = 0.00
    filter_count = 30
    order = 2
    top_k = 1

    length, height, top_left = get_length_height(region)
    print "区域(长度,宽度):", length, height

    x_values = []
    y_values1 = []
    y_values2 = []
    y_values3 = []
    y_values4 = []
    y_values5 = []
    while cluster_radius <= 4.0:
        temp_data, time_slice, train, cluster_radius = init_data(
            time_slice, train, region, cluster_radius, filter_count)

        axis_pois, axis_users, train_structure_data, poi_adjacent_list, recommends, unknow_poi_set = preprocess(
            temp_data, time_slice, train, cluster_radius, order)
        print "train_structure_data: ", train_structure_data
Esempio n. 2
0
# 2.Tersor Factorization(TF):基于用户-时间-地点的频数张量进行hosvd分解,没有用户的转移信息(地点对地点的评分)

if __name__ == '__main__':
    time_slice = 2
    train = 0.6
    # beijing = (39.433333, 41.05, 115.416667, 117.5)
    # haidian = (39.883333, 40.15, 116.05, 116.383333)
    # region = (39.88, 40.03, 116.05, 116.25)
    # region = (39.88, 40.05, 116.05, 116.26)
    region = (39.88, 40.05, 116.05, 116.26)
    cluster_radius = 1
    filter_count = 30
    order = 2
    top_k = 1

    length, height, top_left = get_length_height(region)
    print "区域(长度,宽度):", length, height

    # pmpt
    temp_data, time_slice, train, cluster_radius = init_data(time_slice, train, region, cluster_radius, filter_count)
    axis_pois, axis_users, train_structure_data, poi_adjacent_list, recommends, unknow_poi_set = preprocess(temp_data, time_slice, train, cluster_radius, order)
    tensor = trans(train_structure_data, poi_adjacent_list, order, len(axis_pois), len(axis_users), time_slice)
    U, S, D = HOSVD(numpy.array(tensor), 0.7)
    A = reconstruct(S, U)

    # factorized markov chain
    temp_data2, time_slice, train2 = init_data2(region, train, time_slice, filter_count)
    axis_pois2, axis_users2, train_structure_data2, recommends2, unknow_poi_set2 = preprocess2(temp_data2, time_slice, train2, order)
    A2 = trans2(train_structure_data2, order, len(axis_pois2), time_slice, 0.7)

    # tensor factorization