publication . Conference object . Article . 2017

Personalised Diversification Using Intent-Aware Portfolio

Wasilewski, Jacek; Hurley, Neil J.;
Open Access
  • Published: 06 Jun 2017
  • Publisher: ACM
  • Country: Ireland
Abstract
UMAP '17 Adjunct Publication of The 25th Conference on User Modeling, Adaptation and Personalization, Bratislava, Slovakia The intent-aware diversification framework considers a set of aspects associated with items to be recommended. A baseline recommendation is greedily re-ranked using an objective that promotes diversity across the aspects. In this paper the framework is analysed and a new intent-aware objective is derived that considers the minimum variance criterion, connecting the framework directly to portfolio diversification from finance. We derive an aspect model that supports the goal of minimum variance and that is faithful to the underlying baseline ...
Subjects
free text keywords: Recommender Systems, Data mining, computer.software_genre, computer, Modern portfolio theory, Recommender system, Minimum-variance unbiased estimator, Diversification (marketing strategy), MovieLens, Diversification (finance), Portfolio, Computer science, Econometrics
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