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	Author	Maria Salamo; Sergio Escalera; Petia Radeva
	Title	Quality Enhancement based on Reinforcement Learning and Feature Weighting for a Critiquing-Based Recommender			Type	Conference Article
	Year	2009	Publication	8th International Conference on Case-Based Reasoning	Abbreviated Journal
	Volume	5650	Issue		Pages	298–312
	Keywords
	Abstract	Personalizing the product recommendation task is a major focus of research in the area of conversational recommender systems. Conversational case-based recommender systems help users to navigate through product spaces, alternatively making product suggestions and eliciting users feedback. Critiquing is a common form of feedback and incremental critiquing-based recommender system has shown its efficiency to personalize products based primarily on a quality measure. This quality measure influences the recommendation process and it is obtained by the combination of compatibility and similarity scores. In this paper, we describe new compatibility strategies whose basis is on reinforcement learning and a new feature weighting technique which is based on the user’s history of critiques. Moreover, we show that our methodology can significantly improve recommendation efficiency in comparison with the state-of-the-art approaches.
	Address	Seattle, USA
	Corporate Author				Thesis
	Publisher	Springer Berlin Heidelberg	Place of Publication		Editor
	Language		Summary Language		Original Title
	Series Editor		Series Title		Abbreviated Series Title	LNCS
	Series Volume		Series Issue		Edition
	ISSN	0302-9743	ISBN	978-3-642-02998-1	Medium
	Area		Expedition		Conference	ICCBR
	Notes	HuPBA; MILAB			Approved	no
	Call Number	BCNPCL @ bcnpcl @ SER2009			Serial	1187
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