Title
DeepApp: Predicting Personalized Smartphone App Usage via Context-Aware Multi-Task Learning
Abstract
AbstractSmartphone mobile application (App) usage prediction, i.e., which Apps will be used next, is beneficial for user experience improvement. Through an in-depth analysis on a real-world dataset, we find that App usage is highly spatio-temporally correlated and personalized. Given the ability to model complex spatio-temporal contexts, we aim to apply deep learning to achieve high prediction accuracy. However, the personalization yields a problem: training one network for each individual suffers from data scarcity, yet training one deep neural network for all users often fails to uncover user preference. In this article, we propose a novel App usage prediction framework, named DeepApp, to achieve context-aware prediction via multi-task learning. To tackle the challenge of data scarcity, we train one general network for multiple users to share common patterns. To better utilize the spatio-temporal contexts, we supplement a location prediction task in the multi-task learning framework to learn spatio-temporal relations. As for the personalization, we add a user identification task to capture user preference. We evaluate DeepApp on the large-scale dataset by extensive experiments. Results demonstrate that DeepApp outperforms the start-of-the-art baseline by 6.44%.
Year
DOI
Venue
2020
10.1145/3408325
ACM Transactions on Intelligent Systems and Technology
Keywords
DocType
Volume
App usage prediction, multi-task learning, deep learning
Journal
11
Issue
ISSN
Citations 
6
2157-6904
1
PageRank 
References 
Authors
0.34
0
7
Name
Order
Citations
PageRank
Tong Xia110.34
Yong Li22972218.82
Jie Feng3827.13
Depeng Jin42177154.29
Qing Zhang572.12
Hengliang Luo693.50
QM746472.05