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Data Interview Question

Streaming Service Viewer Prediction

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Answer

Problem Understanding

To tackle this problem, the primary objective is to develop a predictive model that can distinguish between viewers who are likely taking a temporary break from watching a TV series and those who have lost interest in the show altogether. This prediction can help streaming services enhance user engagement, tailor recommendations, and improve content retention strategies.

Data Collection

  1. User Interaction Data:

    • Viewing Sessions: Capture start and stop times, total duration per session, and frequency of watching.
    • Pause Events: Timestamp and duration of pauses.
    • Search and Navigation: User searches and browsing history around the time of watching.
    • Feedback: Ratings, reviews, and explicit feedback (e.g., "Add to Watchlist" or "Remove from Watchlist").
  2. Content Metadata:

    • Show Characteristics: Genre, episode length, release date, and number of seasons.
    • Popularity Metrics: Ratings, viewer count, and social media mentions.
  3. User Profile Data:

    • Demographics: Age, location, gender, and device used.
    • Viewing Preferences: Preferred genres, actors, and directors.
  4. Temporal and Contextual Data:

    • Time of Day and Week: Viewing patterns based on time and day.
    • External Events: Competing shows or events that may distract viewers.

Feature Engineering

  • Session Features: Average session duration, time since last session, and binge-watching patterns.
  • Engagement Metrics: Episode completion rate, frequency of interactions, and sentiment analysis of reviews.
  • Content Features: Genre similarity with previously watched shows, episode pacing, and cliffhanger episodes.

Model Selection

  1. Classification Models:

    • Logistic Regression: For a baseline understanding of feature importance.
    • Random Forest/Gradient Boosting: To capture non-linear relationships and handle feature interactions.
    • Neural Networks: For complex patterns and large datasets.
  2. Sequential Models:

    • LSTM/GRU: To account for the sequential nature of viewing behavior.
  3. Survival Analysis:

    • Cox Proportional Hazards Model: To predict the time until a user stops watching a show.

Evaluation Metrics

  • Accuracy, Precision, Recall: For classification tasks.
  • ROC-AUC: To evaluate the model's discriminative ability.
  • Mean Time to Failure: For survival analysis models.

Experimentation and Deployment

  • A/B Testing: To assess the model's impact on user engagement and retention.
  • Real-Time Integration: Deploy the model to make predictions as new data streams in.
  • Feedback Loop: Continuously refine the model using user feedback and new data.

Ethical Considerations

  • Privacy: Ensure transparent data usage and respect user privacy.
  • Bias Mitigation: Regularly audit the model for potential biases and ensure diverse content recommendations.

By following this structured approach, a streaming service can effectively predict viewer behavior, enhancing user satisfaction and optimizing content delivery strategies.