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Cross-Platform App Recommendation by Jointly Modeling Ratings and Texts

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Published:11 July 2017Publication History
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Abstract

Over the last decade, the renaissance of Web technologies has transformed the online world into an application (App) driven society. While the abundant Apps have provided great convenience, their sheer number also leads to severe information overload, making it difficult for users to identify desired Apps. To alleviate the information overloading issue, recommender systems have been proposed and deployed for the App domain. However, existing work on App recommendation has largely focused on one single platform (e.g., smartphones), while it ignores the rich data of other relevant platforms (e.g., tablets and computers).

In this article, we tackle the problem of cross-platform App recommendation, aiming at leveraging users’ and Apps’ data on multiple platforms to enhance the recommendation accuracy. The key advantage of our proposal is that by leveraging multiplatform data, the perpetual issues in personalized recommender systems—data sparsity and cold-start—can be largely alleviated. To this end, we propose a hybrid solution, STAR (short for “croSs-plaTform App Recommendation”) that integrates both numerical ratings and textual content from multiple platforms. In STAR, we innovatively represent an App as an aggregation of common features across platforms (e.g., App’s functionalities) and specific features that are dependent on the resided platform. In light of this, STAR can discriminate a user’s preference on an App by separating the user’s interest into two parts (either in the App’s inherent factors or platform-aware features). To evaluate our proposal, we construct two real-world datasets that are crawled from the App stores of iPhone, iPad, and iMac. Through extensive experiments, we show that our STAR method consistently outperforms highly competitive recommendation methods, justifying the rationality of our cross-platform App recommendation proposal and the effectiveness of our solution.

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        cover image ACM Transactions on Information Systems
        ACM Transactions on Information Systems  Volume 35, Issue 4
        Special issue: Search, Mining and their Applications on Mobile Devices
        October 2017
        461 pages
        ISSN:1046-8188
        EISSN:1558-2868
        DOI:10.1145/3112649
        Issue’s Table of Contents

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        Publication History

        • Published: 11 July 2017
        • Accepted: 1 November 2016
        • Revised: 1 October 2016
        • Received: 1 June 2016
        Published in tois Volume 35, Issue 4

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