包装器的 Gensim 模块属性错误

Question

我要找到 LDA 的最佳主题数。为此，我使用 GENSIM 如下：

def compute_coherence_values(dictionary, corpus, texts, limit, start=2, step=3):
    coherence_values = []
    model_list = []
    for num_topics in range(start, limit, step):
        model = gensim.models.wrappers.LdaMallet(mallet_path, corpus=corpus, num_topics=num_topics, id2word=id2word)
        model_list.append(model)
        coherencemodel = CoherenceModel(model=model, texts=texts, dictionary=dictionary, coherence='c_v')
        coherence_values.append(coherencemodel.get_coherence())

    return model_list, coherence_values

但是我有一个属性错误：我使用了spyder。

AttributeError: module 'gensim.models' has no attribute 'wrappers'

Answer 1

最新的主要 Gensim 版本 4.0 删除了其他库算法的 wrappers。根据 "Migrating from Gensim 3.x to 4" wiki page:

15. Removed third party wrappers

These wrappers of 3rd party libraries required too much effort. There were no volunteers to maintain and support them properly in Gensim.

If your work depends on any of the modules below, feel free to copy it out of Gensim 3.8.3 (the last release where they appear), and extend & maintain the wrapper yourself.

The removed submodules are:
- gensim.models.wrappers.dtmmodel
- gensim.models.wrappers.ldamallet
- gensim.models.wrappers.ldavowpalwabbit
- gensim.models.wrappers.varembed
- gensim.models.wrappers.wordrank
- gensim.sklearn_api.atmodel
- gensim.sklearn_api.d2vmodel
- gensim.sklearn_api.ftmodel
- gensim.sklearn_api.hdp
- gensim.sklearn_api.ldamodel
- gensim.sklearn_api.ldaseqmodel
- gensim.sklearn_api.lsimodel
- gensim.sklearn_api.phrases
- gensim.sklearn_api.rpmodel
- gensim.sklearn_api.text2bow
- gensim.sklearn_api.tfidf
- gensim.sklearn_api.w2vmodel
- gensim.viz

如果您迫切需要旧版支持，也可以考虑安装和使用旧版 Gensim。（例如，通过 pip、pip install gensim==3.8.3。）但一般来说，最新版本将得到最好的支持。

包装器的 Gensim 模块属性错误

Genism Module attribute error for wrappers

python

gensim

lda

topic-modeling