Scikit-learn:在具有小edge_list的PageRank对象上调用fit_predict时出现异常

问题描述 投票:0回答:1
在使用来自边缘列表的数据对 PageRank 对象调用 fit_predict 方法时遇到奇怪的异常。

我收到“TypeError:输入矩阵必须采用 Scipy 稀疏格式或 Numpy ndarray 格式”异常,并显示以下跟踪:

Traceback (most recent call last): File "<stdin>", line 1, in <module> File "/Users/hkabla/Library/Python/3.9/lib/python/site-packages/sknetwork/ranking/base.py", line 37, in fit_predict self.fit(*args, **kwargs) File "/Users/hkabla/Library/Python/3.9/lib/python/site-packages/sknetwork/ranking/pagerank.py", line 99, in fit adjacency, values, self.bipartite = get_adjacency_values(input_matrix, force_bipartite=force_bipartite, File "/Users/hkabla/Library/Python/3.9/lib/python/site-packages/sknetwork/utils/format.py", line 203, in get_adjacency_values input_matrix = check_format(input_matrix) File "/Users/hkabla/Library/Python/3.9/lib/python/site-packages/sknetwork/utils/check.py", line 130, in check_format raise TypeError('The input matrix must be in Scipy sparse format or Numpy ndarray format.') TypeError: The input matrix must be in Scipy sparse format or Numpy ndarray format.
您能帮我找出为什么会出现此错误吗?

这是我的代码:

import sknetwork as skn from sknetwork.ranking import PageRank edges = [(0, 1), (0, 89), (0, 101), (0, 107), (0, 92), (0, 98), (0, 100), (0, 102), (0, 88), (0, 109), (0, 106), (0, 104), (0, 105), (0, 96), (0, 110), (0, 94), (0, 108), (0, 99), (0, 103), (1, 1), (1, 89), (1, 101), (1, 107), (1, 92), (1, 98), (1, 100), (1, 102), (1, 88), (1, 109), (1, 106), (1, 104), (1, 105), (1, 96), (1, 110), (1, 94), (1, 108), (1, 99), (1, 103), (2, 1), (2, 89), (2, 101), (2, 107), (2, 92), (2, 98), (2, 100), (2, 102), (2, 109), (2, 106), (2, 104), (2, 105), (2, 96), (2, 110), (2, 94), (2, 108), (2, 99), (2, 103), (2, 0), (2, 26), (2, 21), (2, 28), (2, 24), (2, 33), (2, 17), (2, 19), (2, 35), (2, 30), (2, 37), (2, 38), (3, 1), (3, 89), (3, 101), (3, 107), (3, 92), (3, 98), (3, 100), (3, 102), (3, 109), (3, 106), (3, 104), (3, 105), (3, 96), (3, 110), (3, 94), (3, 108), (3, 99), (3, 103), (3, 0), (3, 5), (3, 6), (3, 2), (4, 1), (4, 89), (4, 101), (4, 107), (4, 92), (4, 98), (4, 100), (4, 102), (4, 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(107, 99), (107, 103), (107, 0), (108, 1), (108, 89), (108, 101), (108, 107), (108, 92), (108, 98), (108, 100), (108, 102), (108, 109), (108, 106), (108, 104), (108, 105), (108, 96), (108, 110), (108, 94), (108, 108), (108, 99), (108, 103), (108, 0), (109, 1), (109, 89), (109, 101), (109, 107), (109, 92), (109, 98), (109, 100), (109, 102), (109, 109), (109, 106), (109, 104), (109, 105), (109, 96), (109, 110), (109, 94), (109, 108), (109, 99), (109, 103), (109, 0), (110, 1), (110, 89), (110, 101), (110, 107), (110, 92), (110, 98), (110, 100), (110, 102), (110, 109), (110, 106), (110, 104), (110, 105), (110, 96), (110, 110), (110, 94), (110, 108), (110, 99), (110, 103), (110, 0), (110, 48)] adjacency = skn.data.from_edge_list(edges) pagerank = PageRank() pagerank.fit_predict(adjacency)
邻接对象似乎不是很大:

>>> adjacency {'names': array([ 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114]), 'adjacency': <109x109 sparse matrix of type '<class 'numpy.int64'>' with 4063 stored elements in Compressed Sparse Row format>}
    
scikit-learn sparse-matrix adjacency-matrix pagerank
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投票
添加matrix_only=True参数解决了问题

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