@inproceedings{6b6d69aeef6240beb56a174ca248d139,
title = "A Localization System for GPS-free Navigation Scenarios",
abstract = "Localization is crucial to mobile navigation, which mainly depends on satellite navigation systems such as GPS. Unfortunately, sometimes GPS localization might be missing due to hardware failure or the urban canyon effect. Network localization is a promising way to improve localization experience for users under these conditions. However, there has not been any report on the large-scale applications of network localization methods to GPS-free outdoor scenarios. In this paper, we describe the challenges and build a novel navigation fingerprint based localization system, which fuses road network information and Wi-Fi signals scanned outdoors. With large amount of navigation trajectories as supervised information, we train a ranking model to obtain a reasonable metric for localization. The localization system has been deployed in Tencent Map, improving navigation accuracy in GPS-free outdoor scenarios for 1.6 million users.",
keywords = "Mobile navigation, Network localization, Road network",
author = "Jiazhi Ni and Xin Zhang and Beihong Jin and Fusang Zhang and Xin Li and Qiang Huang and Pengsen Wang and Xiang Li and Ning Xiao and Youchen Wang and Chang Liu",
note = "Publisher Copyright: {\textcopyright} 2022, The Author(s), under exclusive license to Springer Nature Switzerland AG.; 27th International Conference on Database Systems for Advanced Applications, DASFAA 2022 ; Conference date: 11-04-2022 Through 14-04-2022",
year = "2022",
doi = "10.1007/978-3-031-00123-9\_22",
language = "英语",
isbn = "9783031001222",
series = "Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)",
publisher = "Springer Science and Business Media Deutschland GmbH",
pages = "268--273",
editor = "Arnab Bhattacharya and \{Lee Mong Li\}, Janice and Divyakant Agrawal and Reddy, \{P. Krishna\} and Mukesh Mohania and Anirban Mondal and Vikram Goyal and \{Uday Kiran\}, Rage",
booktitle = "Database Systems for Advanced Applications - 27th International Conference, DASFAA 2022, Proceedings",
address = "德国",
}