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@MaartenGr MaartenGr released this 02 Mar 13:19
· 123 commits to master since this release
v0.14.1
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Learn about vigilant mode.

Features/Fixes

  • Use ChatGPT to create topic representations!
  • Added delay_in_seconds parameter to OpenAI and Cohere representation models for throttling the API
    • Setting this between 5 and 10 allows for trial users now to use more easily without hitting RateLimitErrors
  • Fixed missing title param to visualization methods
  • Fixed probabilities not correctly aligning (#1024)
  • Fix typo in textgenerator @dkopljar27 in #1002

ChatGPT

Within OpenAI's API, the ChatGPT models use a different API structure compared to the GPT-3 models.
In order to use ChatGPT with BERTopic, we need to define the model and make sure to set chat=True:

import openai
from bertopic import BERTopic
from bertopic.representation import OpenAI

# Create your representation model
openai.api_key = MY_API_KEY
representation_model = OpenAI(model="gpt-3.5-turbo", delay_in_seconds=10, chat=True)

# Use the representation model in BERTopic on top of the default pipeline
topic_model = BERTopic(representation_model=representation_model)

Prompting with ChatGPT is very satisfying and can be customized in BERTopic by using certain tags.
There are currently two tags, namely "[KEYWORDS]" and "[DOCUMENTS]".
These tags indicate where in the prompt they are to be replaced with a topics keywords and top 4 most representative documents respectively.
For example, if we have the following prompt:

prompt = """
I have topic that contains the following documents: \n[DOCUMENTS]
The topic is described by the following keywords: [KEYWORDS]

Based on the information above, extract a short topic label in the following format:
topic: <topic label>
"""

then that will be rendered as follows and passed to OpenAI's API:

"""
I have a topic that contains the following documents: 
- Our videos are also made possible by your support on patreon.co.
- If you want to help us make more videos, you can do so on patreon.com or get one of our posters from our shop.
- If you want to help us make more videos, you can do so there.
- And if you want to support us in our endeavor to survive in the world of online video, and make more videos, you can do so on patreon.com.

The topic is described by the following keywords: videos video you our support want this us channel patreon make on we if facebook to patreoncom can for and more watch 

Based on the information above, extract a short topic label in the following format:
topic: <topic label>
"""

Note
Whenever you create a custom prompt, it is important to add

Based on the information above, extract a short topic label in the following format:
topic: <topic label>

at the end of your prompt as BERTopic extracts everything that comes after topic: . Having
said that, if topic: is not in the output, then it will simply extract the entire response, so
feel free to experiment with the prompts.

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