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Behind the Scenes of an Ads Prediction System — Bunmi Akinremi
Explore how modern ads prediction systems work, from initial filtering to final selection, including key metrics, ethical considerations, and technical challenges in ad targeting.
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Ads prediction systems use multiple layers of filtering and models to narrow down relevant ads from thousands to a handful that match user context
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Key data tracked includes:
- User demographics (age, gender, location, language)
- Browsing history
- Ad-specific features (format, performance history)
- Contextual data
- Ad placement data
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System components include:
- Initial related ads selection (simple models)
- Complex models for relevance filtering
- Auction system for final ad selection
- Online training and continuous model updates
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Performance metrics tracked:
- Click-through rates
- Conversion rates
- Return on ad spend
- Engagement metrics
- Cost per acquisition
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Ethical considerations:
- Data privacy compliance
- Transparency in model decisions
- Avoiding user manipulation
- Country-specific regulatory requirements
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Technical challenges:
- Managing massive data volumes
- Balancing model training frequency
- Handling unbalanced datasets
- Maintaining efficiency and low latency
- Continuous monitoring and recalibration
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Models must adapt to:
- New ads without historical data
- Changing user behaviors
- Platform-specific requirements
- Different advertising goals