The task of guiding in adaptive recommender systems

Authors:
Félix Hernández del Olmo;Elena Gaudioso;Eduardo H. Martin
Affiliations:
UNED, Artificial Intelligence Department, C/Juan del Rosal, 16 28040 Madrid, Spain;UNED, Artificial Intelligence Department, C/Juan del Rosal, 16 28040 Madrid, Spain;UNED, Artificial Intelligence Department, C/Juan del Rosal, 16 28040 Madrid, Spain
Venue:
Expert Systems with Applications: An International Journal
Year:
2009

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Abstract

In this paper, we study the recommendation problem as formed by two tasks: (i) to filter useful/interesting items, (ii) to guide the user to good recommendations. The first task has been widely studied in the field of recommender systems. In fact, the most common characterization of these systems is based on the algorithms that select (filter) the items to be recommended (e.g. collaborative filtering, content-based, etc.). Through this paper, we will focus on the second task: the task of guiding the user. We claim that this task needs a closer attention. In this paper, we report an experiment to provide evidence for this fact. Actually, the experiment shows that machine learning algorithms commonly applied to the first task become useless when applied to the task of guiding.