LangChain 介绍

In recent times, you would probably have heard of many AI applications, one of them being chatpdf.com.

在最近，你可能听说过很多的AI应用，chatpdf.com就是其中的一个。

On this website, you can upload your own PDF. After uploading, you can have a conversation by asking questions about your PDF, and the site will provide you with the answers.

在这个网站中，你可以上传自己的PDF文档。在上传之后，你可以对你的PDF文档进行提问，网站会提供你相应的答案。

So, for example, if I upload the US Consitution to this website and it processes it, I can ask questions like, “What is the purpose of the Consitution of the United States?” or “How is the House of Representatives composed and elected?”

比如，我上传了 US Consitution到这个网站，我就可以提问 “What is the purpose of the Consitution of the United States?” 或者 “How is the House of Representatives composed and elected?”。

I might also pose my own questions, such as, “What is the minimum age to be a senator?”

我也可能有我自己的问题，比如，“What is the minimum age to be a senator?”

If I click a feature to “scroll to page three”, it will show the part of the text from which the answer was derived.

Now, if you want to develop an application like this, how should you go about it? Many developers choose to use a technology called “LangChain”. In this course, we will introduce LangChain and demonstrate how to integrate it with large language models, like OpenAI GPT, to develop these amazing apps.

现在，如果我们想要开发一个类似这样的应用，我们应该如何实现呢？许多开发者选择Langchain。在这个课程中，我们会介绍Langchain如何与大语言模型交互，比如ChatGPT，用于开发这些令人赞叹的应用程序。