The paper presents a survey of the field of recommender systems anddescribes current recommendation methods that are usually classified into thefollowing three main categories: content-based, collaborative, and hybridrecommendation approaches. The paper also describes various limitations...

An approach to defining actionability as a measure ofinterestingness of patterns is proposed. This approachis based on the concept of an action hierarchy whichis defined as a tree of actions with patterns and patterntemplates (data mining queries) assigned to itsnodes. A method for discovering...

Initially popularized by Amazon.com, recommendation technologies have become widespread over the past several years. However, the types of recommendations available to the users in these recommender systems are typically determined by the vendor and therefore are not flexible. In this paper, we...