我一直试图通过使用槌作为gensim中的库来保持主题建模输出的稳定性。但是,我发现木槌可以设置随机种子,但是在gensim中看不到任何参数可以设置它。
答案 0 :(得分:2)
这刚刚被添加到ldamallet.py包装器中
def __init__(self, mallet_path, corpus=None, num_topics=100, alpha=50, id2word=None, workers=4, prefix=None,
optimize_interval=0, iterations=1000, topic_threshold=0.0, random_seed=0):
"""
Parameters
----------
mallet_path : str
Path to the mallet binary, e.g. `/home/username/mallet-2.0.7/bin/mallet`.
corpus : iterable of iterable of (int, int), optional
Collection of texts in BoW format.
num_topics : int, optional
Number of topics.
alpha : int, optional
Alpha parameter of LDA.
id2word : :class:`~gensim.corpora.dictionary.Dictionary`, optional
Mapping between tokens ids and words from corpus, if not specified - will be inferred from `corpus`.
workers : int, optional
Number of threads that will be used for training.
prefix : str, optional
Prefix for produced temporary files.
optimize_interval : int, optional
Optimize hyperparameters every `optimize_interval` iterations
(sometimes leads to Java exception 0 to switch off hyperparameter optimization).
iterations : int, optional
Number of training iterations.
topic_threshold : float, optional
Threshold of the probability above which we consider a topic.
random_seed: int, optional
Random seed to ensure consistent results, if 0 - use system clock.
"""
答案 1 :(得分:0)
我遇到了同样的问题,但是要使用最新版本的gensim
,这有点棘手。正如 Chris 所说,新版本已实现,但运行起来对我来说很麻烦。请确保执行以下操作,因为您可能正在使用旧的包装器:
conda install -c conda-forge gensim
pip install --upgrade gensim
第二步完成工作,仅安装它不会更新gensim
,因为我对此有疑问。
以下链接针对您的问题提供了更多信息: