-1

我正在使用 gensim 包在 python 中进行主题建模。

我正在尝试使用 gensim 训练主题模型。下面是 train.py 模块：

class Corpus(object):
    def __init__(self, cursor, reviews_dictionary, corpus_path):
        self.cursor = cursor
        self.reviews_dictionary = reviews_dictionary
        self.corpus_path = corpus_path

    def __iter__(self):
        self.cursor.rewind()
        for review in self.cursor:
            yield self.reviews_dictionary.doc2bow(review["words"])

    def serialize(self):
        BleiCorpus.serialize(self.corpus_path, self, id2word=self.reviews_dictionary)

        return self


class Dictionary(object):
    def __init__(self, cursor, dictionary_path):
        self.cursor = cursor
        self.dictionary_path = dictionary_path

    def build(self):
        self.cursor.rewind()
        dictionary = corpora.Dictionary(review["words"] for review in self.cursor)
        dictionary.filter_extremes(keep_n=10000)
        dictionary.compactify()
        corpora.Dictionary.save(dictionary, self.dictionary_path)

        return dictionary


class Train:
    def __init__(self):
        pass

    @staticmethod
    def run(lda_model_path, corpus_path, num_topics, id2word):
        corpus = corpora.BleiCorpus(corpus_path)
        lda = gensim.models.LdaModel(corpus, num_topics=num_topics, id2word=id2word)
        lda.save(lda_model_path)

        return lda

运行此模块时出现以下错误：

> Traceback (most recent call last):


    File "train.py", line 74, in <module>
    main()

    File "train.py", line 68, in main
    dictionary = Dictionary(reviews_cursor, dictionary_path).build()
    File "train.py", line 38, in build
    corpora.Dictionary.save(dictionary, self.dictionary_path)
    File "/usr/local/lib/python2.7/dist-packages/gensim/utils.py", line 288, in save
    pickle(self, fname)
    File "/usr/local/lib/python2.7/dist-packages/gensim/utils.py", line 666, in pickle
    with smart_open(fname, 'wb') as fout: # 'b' for binary, needed on Windows
    File "/usr/local/lib/python2.7/dist-packages/gensim/utils.py", line 661, in smart_open
    return open(fname, mode)
    IOError: [Errno 2] No such file or directory: 'models/dictionary.dict'

谁能帮我解决这个问题？

4

1 回答 1

3

当保存操作中出现“No such file or directory”时，通常表示您指定为输出文件容器的目录路径不存在。在这种情况下，您已经清楚地给出 self.dictionary_path = "models/dictionary.dict"了相对路径。保存到此路径的错误可能意味着文件无法保存在“模型”中，因为目录“模型”相对于当前工作目录不存在。

要找出当前的工作目录，您可以使用os.getcwd. 要测试目录是否存在，您可以使用os.path.isdir. 要创建目录，您可以使用os.mkdir.

于 2014-10-09T19:22:09.300 回答