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Real-time Tweets Sentiment Analysis and Emotion Detection

twitter python Jupyter Notebook scikit-learn

This project is an end-to-end pipeline that provides powerful insights about any topic or product through real-time tweets sentiment analysis and emotion detection.

This is a group project for the course Professional Personal Project at the National Institute of Applied Science and Technology, Tunisia.

Description

This project explores sentiment analysis and emotion detection along with text preprocessing and feature engineering methods.

We are exploring, through this project, different machine learning techniques to train classifier models and evaluate using a confusion matrix. We are also pulling real-time data from Twitter using Twitter API and tweepy package, and predict sentiment and emotions to generate insights. Finally, we generate a script for an automated reporting, which sends reports to a given set of e-mail addresses.

Files

The project consists of the following files:

  • auto.py: Contains functions for loading models, vectorizers, data, and performing predictions. These functions are combined to create an automated reporting process.

  • job.py: Implements a scheduler to run auto.py daily.

  • twitter_search.py: Contains functions related to data fetching through Tweepy and the Twitter API.

  • svm_model.pkl: A trained SVM model for sentiment analysis.

  • tfidf.pkl: A trained TF-IDF vectorizer for sentiment analysis.

  • requirements.txt: Lists all the packages required for the project.

  • Step-by-step-guide.ipynb: A Jupyter notebook that provides a step-by-step guide for the project. It includes the code and explanations.

  • eng_dataset.csv: A dataset containing 7.1k tweets in English, which is used for training the sentiment analysis model.

Getting Started

To run the project, follow the steps below:

  1. clone the repository by using the following command:

    git clone https://github.com/mrdaliselmi/Real-time-Tweets-Sentiment-Analysis-and-Emotion-Detection-Pipeline

  2. Install the required packages listed in requirements.txt using the following command:

    pip install -r requirements.txt

  3. Ensure that you have the necessary credentials and access to the Twitter API. If not, you can apply for a developer account here.

  4. Create a file credentials.py having an enum class with all the credentials

  5. Set up the necessary configurations in job.py to specify the schedule and other parameters for running the automated reporting process.

  6. Run job.py to start the automated reporting process. Alternatively, if you prefer to use a cron job, you can schedule it using the cron syntax. For example, to run the script every day at 8 AM, you can use the following command:

    0 8 * * * python3 /path/to/auto.py

Project overview: Methodology and Approach

Project Pipeline

The following flowchart illustrates the pipeline of the project:

flowchart

Data Pre-processing

The data pre-processing step includes the following steps:

  • Case Normalization: Convert all text to lowercase.
  • Data Cleaning: Remove special characters, and ponctuation.
  • Stopwords Removal: Remove stopwords from the text.
  • Correct Spelling: Correct spelling mistakes in the text.
  • Stemming: Reduce words to their root form.

Feature Engineering

The feature engineering step includes the following steps:

  • TF-IDF Vectorization: Convert text to a matrix of TF-IDF features.
  • Count Vectorization: Convert text to a matrix of token counts.

Model Training and Evaluation

The model training and evaluation step includes the following steps:

  • Train/Test Split: Split the data into training and testing sets.
  • Model Training: Train a classifier model using the training set.
  • Model Evaluation: Evaluate the model using the testing set.
  • Confusion Matrix: Generate a confusion matrix to evaluate the model's performance.
precision recall f1-score support
0 0.92 0.87 0.89 340
1 0.83 0.96 0.89 451
2 0.97 0.90 0.93 323
3 0.86 0.77 0.81 307
accuracy 0.88 1421
macro avg 0.89 0.87 0.88 1421
weighted avg 0.89 0.88 0.88 1421

Real-time Data Fetching

  • Twitter API: Use the Twitter API to fetch real-time tweets.
  • Tweepy: Use the tweepy package to fetch tweets from the Twitter API.
  • Data Pre-processing: Pre-process the fetched tweets using the same steps as well as the same vectorizer as the data pre-processing step.

Prediction and Reporting

  • Prediction: Predict the sentiment and emotions of the fetched tweets using TextBlob and the trained model.

  • Reporting: Generate a report containing the following information:

    • Emotion distribution pie Chart
    • Sentiment distribution pie Chart
    • Statistics about the number of tweets, the number of positive, negative, and neutral tweets, and the number of tweets for each emotion.
    • A stacked bar plot as a combination of the sentiment and emotion distributions.

Additional Notes

  • The project's code is provided in the Jupyter notebook step-by-step-guide.ipynb, which contains detailed explanations and code snippets for each step.

  • The project utilizes various Python packages such as pandas, NLTK, scikit-learn, Matplotlib, seaborn, and xgboost. Make sure to install these packages, as mentioned in the requirements.txt file.

Team Members

References