Advanced Chatbots with Deep Learning and Python - Develop Vocabulary

The video tutorial explains how to aggregate test and train data into a single dataset called 'all_data'. It then guides the viewer through the process of creating a vocabulary set from story and question data, ensuring that all necessary words, including 'yes' and 'no', are included. The tutorial concludes by calculating the length of the vocabulary and previews the next video, which will cover the longest story and maximum question length.

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