Chatbots for Beginners: A Complete Guide to Build Chatbots - Project: Conversational Chatbot Development with Machine Le

The video tutorial explains the process of cleaning text data by removing unwanted elements such as digits and special characters. It demonstrates the use of regular expressions to substitute these elements with spaces, ensuring the text is ready for further processing like tokenization.

What is the purpose of the 're.sub' function as described in the text?

What will be developed in the later video according to the text?