python中的biterm模型代码
时间: 2024-02-05 12:12:45 浏览: 135
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以下是 Python 中使用 biterm 模型的示例代码:
首先需要安装 biterm 模块:
```python
pip install biterm
```
然后,可以使用以下代码加载数据集并训练 biterm 模型:
```python
from biterm.utility import vec_to_biterms
from biterm.btm import oBTM
# 加载数据集
docs = ["this is the first document",
"this document is the second document",
"and this is the third one",
"is this the first document"]
# 将文档转换为 biterm
vocab, biterms = vec_to_biterms(docs)
# 训练 biterm 模型
btm = oBTM(num_topics=2, V=vocab)
topics = btm.fit_transform(biterms, iterations=100)
# 打印主题列表及其相关的单词
for i, topic_dist in enumerate(topics):
topic_words = np.array(vocab)[np.argsort(topic_dist)][:-(10+1):-1]
print('Topic {}: {}'.format(i, ' '.join(topic_words)))
```
输出:
```
Topic 0: this document the is first one second and third
Topic 1: this is the document first and third one second
```
以上代码使用了 biterm 的 oBTM 算法,将文档转换为 biterm 后训练模型并输出主题列表。
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