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Recommender systems · Module 4

Computing & Generating
Recommendations.

From raw score to visible suggestion: how to turn latent vectors into highly relevant personalised recommendations. Discover the mechanics of scoring, ranking and real-time generation.

SVD
Matrix
Factorization
Top-K
Ranking
Algorithms
80ms
Real time
Production
— Demonstration

Real-time engine

Interactive

Generating personalised recommendations

Simulate the recommendation engine for Marie after training the SVD + Neural Collaborative Filtering model

Marie liked Inception (5⭐), Interstellar (4⭐), Dune (4.5⭐). The system predicts she will love Blade Runner 2049, with a 91% probability of rating it ≥ 4.

— Recommendations generated for Marie (top 5)
1. Interstellar 4.72/5

Based on: high similarity with Inception + 2001: A Space Odyssey (via SVD + user-based CF)

2. Dune: Part Two 4.61/5

Hybrid score: content (epic science fiction) + collaborative filtering

3. Blade Runner 2049 4.48/5

Strong latent correlation with her ratings of Nolan & Villeneuve films

4. Arrival 4.39/5

Neural CF + item cosine similarity — a very good thematic match

5. The Matrix Resurrections 4.21/5

Exploratory recommendation (diversity) with medium confidence