Flavian Vasile

On the Value of Bandit Feedback for Offline Recommender System Evaluation

2019 · arXiv

In academic literature, recommender systems are often evaluated on the task of next-item prediction. The procedure aims to give an answer to the question: "Given the natural sequence of user-item interactions up to time t, …

Causal embeddings for recommendation

2018

Many current applications use recommendations in order to modify the natural user behavior, such as to increase the number of sales or the time spent on a website. This results in a gap between the …