What are some good data science projects?

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Here are some good data science projects—suitable for learners and professionals alike—that cover key concepts like data cleaning, visualization, machine learning, and deployment:

1. Customer Churn Prediction
What it covers: Classification, feature engineering, model evaluation.

Use case: Predict which customers are likely to leave a service using historical data.

Tools: Python, scikit-learn, pandas, seaborn.

2. Sales Forecasting
What it covers: Time series analysis, regression, visualization.

Use case: Forecast future sales based on past trends.

Tools: Python, Prophet, ARIMA, Excel, Power BI.

3. Sentiment Analysis of Tweets or Reviews
What it covers: Natural Language Processing (NLP), text preprocessing, classification.

Use case: Analyze public sentiment about products, politics, or brands.

Tools: NLTK, TextBlob, spaCy, Python.

4. Movie Recommendation System
What it covers: Collaborative filtering, content-based filtering, matrix factorization.

Use case: Suggest movies to users based on past ratings or content.

Tools: Python, scikit-learn, Surprise library.

5. Credit Card Fraud Detection
What it covers: Anomaly detection, imbalanced datasets, precision-recall tradeoffs.

Use case: Identify fraudulent transactions from real ones.

Tools: Python, scikit-learn, XGBoost. Also Explore Data Science Interview Questions and Answers

6. Healthcare Analysis (e.g., Diabetes Prediction)
What it covers: Classification, medical datasets, ROC/AUC.

Use case: Predict whether a patient is at risk based on medical data.

Tools: Python, pandas, scikit-learn.

7. Resume Screening Automation
What it covers: NLP, topic modeling, classification.

Use case: Automate filtering resumes for relevant roles.

Tools: Python, spaCy, BERT.

8. Exploratory Data Analysis (EDA) on a Public Dataset
What it covers: Data cleaning, visualization, statistical summaries.

Use case: Draw insights from datasets like Titanic, Iris, or global development stats.

Tools: Python, matplotlib, seaborn, pandas.

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