Results 61 to 70 of about 4,690,775 (224)

A 3-D Near-Field Source Localization Approach Based on the Combination of a Phase Interferometer, the Centroid Algorithm and the Perpendicular Foot Algorithm

Sensors
In this study, several 3-dimensional (3-D) parameter estimation and localization algorithms for wireless near-field (NF) sources are proposed employing the uniform circular array (UCA) structure. In the single-base-station case, the algebraic relation is
Zhijun Qin, Tengfei Xie, Chen Xie, Ziwei Ma, Di He, Xin Chen, Wenxian Yu   +6 more
doaj   +1 more source

Noise-Resilient Acoustic Low Energy Beacon for Proximity-Based Indoor Positioning Systems

Sensors, 2021
Proximity-Based Indoor Positioning Systems (PIPSs) are a simple to install alternative in large facilities. Besides, these systems have a reduced computational cost on the mobile device of those users who do not continuously demand a high location ...
Teodoro Aguilera, Fernando J. Aranda, Felipe Parralejo, Juan D. Gutiérrez, José A. Moreno, Fernando J. Álvarez   +5 more
doaj   +1 more source

Three-Quarters of Smartphone Owners Use Location-Based Services [PDF]

, 2012
Presents survey findings about the use of real-time location-based information and geosocial services such as Foursquare by gender, age, race/ethnicity, income, education, and type of phone.
Kathryn Zickuhr
core  

28% of American Adults Use Mobile and Social Location-Based Services [PDF]

, 2011
Presents survey findings about uses of mobile or social location-based services to get directions or recommendations, check in to geosocial services, or use location-tagging on posts, by type of phone, gender, age, race/ethnicity, income, and ...
Aaron Smith, Kathryn Zickuhr
core  

Privacy and Protection for Location Based Services [PDF]

, 2016
An LBS (location based service) provides services such as finding the nearest location, favourite entertainment areas etc, to the users based on either their residing area or based on the input the give.
Lalitha, M. M. (Mrs), Sneha, G. (G)
core   +1 more source

Economic location-based services, privacy and the relationship to identity [PDF]

, 2005
Mobile telephony and mobile internet are driving a new application paradigm: location-based services (LBS). Based on a person’s location and context, personalized applications can be deployed.
Fritsch, Lothar
core  

Geo-Spotting: Mining Online Location-based Services for Optimal Retail Store Placement

, 2014
The problem of identifying the optimal location for a new retail store has been the focus of past research, especially in the field of land economy, due to its importance in the success of a business.
Karamshuk, Dmytro, Mascolo, Cecilia, Nicosia, Vincenzo, Noulas, Anastasios, Scellato, Salvatore   +4 more
core   +1 more source

A Novel Location Privacy-Preserving Approach Based on Blockchain

Sensors, 2020
Location-based services (LBS) bring convenience to people’s lives but are also accompanied with privacy leakages. To protect the privacy of LBS users, many location privacy protection algorithms were proposed.
Ying Qiu, Yi Liu, Xuan Li, Jiahui Chen
doaj   +1 more source

Implementing a map based simulator for the location API for J2ME [PDF]

, 2005
The Java Location API for J2METM integrates generic positioning and orientation data with persistent storage of landmark objects. It can be used to develop location based service applications for small mobile devices, and these applications can be ...
Parsons, D.
core  

Improving YOLOv8 with parallel frequency channel attention for taxi passengers

IET Image Processing
Detecting taxi passengers is crucial for assessing taxi driver behavior, which plays a significant role in regulating the taxi industry. Despite the advancements in deep learning, object detection algorithms have not been extensively applied to this ...
Qi Gao, Di He, Guilin Xu
doaj   +1 more source