Results 31 to 40 of about 27,207,032 (271)

Impact of Galileo commercial service on location-based service providers: business model analysis and policy implications

, 2012
Today’s mobile location-based services largely depend on a free-of-charge, best effort positioning technology, called Global Positioning System (GPS) which is controlled by the US military.
Lohan, Elena-Simona, de Reuver, Mark, Skournetou, Danai   +2 more
core   +1 more source

Multi-factor Dummy Location Selection Algorithm in Location-based Service [PDF]

Jisuanji kexue
In view of the existing dummy location selection methods in LBS snapshot location privacy protection,the background knowledge attack caused by the time factor of the location itself is ignored,and the sensitive locations are treated equally.Based on this,
LI Yongjun, ZHU Yuefei, WU Wei, BAI Lifang
doaj   +1 more source

Markov and improved particle swarm optimization-based privacy preservation algorithm for user space geographical location

European Journal of Remote Sensing, 2020
With the development of location-based service, the problem of personal privacy information security is becoming more and more serious. Users’ personal privacy information is used without authorization, personal privacy information security is facing ...
Guobin Chen, Shijin Li
doaj   +1 more source

CSEP: Circular Shifting Encryption Protocols for Location Privacy Protection [PDF]

International Journal of Networked and Distributed Computing (IJNDC), 2017
Location Based Service (LBS) is gaining popularity. As one fundamental LBS service, range search returns all Point of Interests (POIs) within a user-specified range. However, people leave their location privacy at risks when using range search.
Chen Di, Zhao Binglin, Li Hao, Zhou Shilei   +3 more
doaj   +1 more source

Dummy location selection algorithm based on location semantics and query probability

Tongxin xuebao, 2020
Aiming at the problem of privacy leakage caused by attackers possessing background knowledge in traditional location privacy protection schemes,a dummy location selection algorithm based on location semantics and query probability was proposed.Under the ...
Jie WANG, Chunru WANG, Jianfeng MA, Hongtao LI   +3 more
doaj   +2 more sources

Precipitable Water Vapor from PPP Estimation with Multi-Analysis-Center Real-Time Products

Remote Sensing
Precipitable water vapor (PWV) is an important component of atmospheric spatial parameters and plays a vital role in meteorological studies. In this study, PWV retrieval by real-time precise point positioning (PPP) technique is validated by using global ...
Wei Li, Heng Gong, Bo Deng, Liangchun Hua, Fei Ye, Hongliang Lian, Lingzhi Cao   +6 more
doaj   +1 more source

Impact of Radiation Therapy on Physical and Psychosocial Health of Adolescents and Young Adults: A Joint Report From the Children's Oncology Group AYA and Radiation Oncology Committees

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Rates of cancer among adolescents and young adults (AYA), age 15–39 years, are increasing. Consequently, radiation oncologists are treating more AYAs who have diagnoses spanning both pediatric and adult practices. Compared to pediatric and older adult patients, AYAs face a unique set of challenges.
Hesham Elhalawani, Rachel K. Peterson, Avani D. Rao, Laurie J. McKenzie, Ahmed Magdy Elmotayam, Leslie Chang, Michael Roth, Susan L. McGovern   +7 more
wiley   +1 more source

Melaka Tourism Location Based Service [PDF]

, 2011
This paper presents a Location Based Service framework application deployed in Melaka urban area. The Melaka Tourism Location Base Service is delivered to support tourist activity to find any nearby venue around their current location.
Dr. Luqman Ibnu Purnomo
core  

Anti-Interference and Secure Communication for Distributed Power Line Inspection Networks Based on the BeiDou Short Message Service

Journal of Applied Science and Engineering
Distributed power line inspection networks in mountainous areas and post-disaster sites often suffer from link outages, high-power interference, queue congestion, and false alarms due to weak public-network coverage, making critical alarm delivery ...
Lianfei Zhao, Fulong Ji, Yongmao Zhao
doaj   +1 more source

An Efficient Dummy-Based Location Privacy-Preserving Scheme for Internet of Things Services

Information, 2019
With the rapid development of GPS-equipped smart mobile devices and mobile computing, location-based services (LBS) are increasing in popularity in the Internet of Things (IoT).
Yongwen Du, Gang Cai, Xuejun Zhang, Ting Liu, Jinghua Jiang   +4 more
doaj   +1 more source