User-Item Interaction Matrix
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A User-Item Interaction Matrix is a matrix dataset that represents a user-item interaction dataset.
- Context:
- It can (typically) be a Large Sparse Dataset.
- See: Clickthrough Matrix.
References
2014
- (Shi et al., 2014) ⇒ Yue Shi, Martha Larson, and Alan Hanjalic. (2014). “Collaborative Filtering Beyond the User-Item Matrix: A Survey of the State of the Art and Future Challenges.” In: ACM Computing Surveys (CSUR) Journal, 47(1). doi:10.1145/2556270
- QUOTE: ... The resulting research progress has established the importance of the user-item (U-I) matrix, which encodes the individual preferences of users for items in a collection, for recommender systems. The U-I matrix provides the basis for collaborative filtering (CF) techniques, the dominant framework for recommender systems. Currently, new recommendation scenarios are emerging that offer promising new information that goes beyond the U-I matrix.