RecSys’10: Multiverse Recommendation: N-dimensional Tensor Factorization for Context-aware Collaborative Filtering

Recommendation system paper challenge (3/50)

Why this paper?

The data?

The metric?

What problem they want to solve? Rating model with time (context) varying user preference

How others solve this problem?

Contributions?

What model do they propose? MULTIVERSE RECOMMENDATION

Benefits:

Loss Function:

Regularization

How to handle missing information?

Baseline model

Experiment

Result