[Enhancement]: Chatbot Improvement Refinements

[baranwalayush]

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Issue Summary

Referenced Folder: Chatbot
While reviewing the codebase, I found some possible improvements that can make the chatbot model perform better. This proposal aims to enhance the chatbot's stability, generalization, and performance by standardizing the training and deployment processes.

1. NLP Standardization
   The project uses very simple and naive tokenizer and stemmer. We can surely make it better by using the standard ones.

   • Use nltk.word_tokenize for superior tokenization.
   • Use PorterStemmer for effective stemming.

2. Training Refinements (Efficiency & Monitoring)

   • Logging: Calculate and print the Average Epoch Loss (instead of just the final batch loss).
   • Performance: Set num_workers > 0 in the DataLoader for parallel data fetching.

If I find any more possible improvements, I will update the PR accordingly.

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