Results 51 to 60 of about 26,653,868 (263)

Sky-GVINS: a sky-segmentation aided GNSS-Visual-Inertial system for robust navigation in urban canyons

Geo-spatial Information Science
Integrating Global Navigation Satellite Systems (GNSS) in Simultaneous Localization and Mapping (SLAM) systems draws increasing attention to a global and continuous localization solution.
Jie Yin, Tao Li, Hao Yin, Wenxian Yu, Danping Zou   +4 more
doaj   +1 more source

Location Based Services and Applications

Revista Cubana de Ingeniería, 2012
Location Based Services (LBS) continue to grow in popularity, effectiveness and reliability, to the extent that applications are designed and implemented taking into account the facilities of the user location information.
Elenis Gorrita Michel, Rónier Sierra Dávila, Samuel Montejo Sánchez   +2 more
doaj   +1 more source

Location Determination Using WiFi - Fingerprinting Versus WiFi - Trilateration

, 2007
Many applications in the area of location-based services and personal navigation require nowadays the location determination of a user not only in outdoor environment but also indoor.
Retscher, Günther, Mok, Esmond
core   +4 more sources

BIG: a framework integrating brain-inspired geometry cell for long-range exploration and navigation

Satellite Navigation
Recently, the brain-inspired mechanisms beneficial to efficient navigation in mammals have exhibited huge research potential. Specifically, the geometry cell model has shown significant insights into the ability of mammals, which is used to model the ...
Zhen Sun, Kehui Ma, Songpengcheng Xia, Qi Wu, Chaoran Xiong, Yan Xiang, Ling Pei   +6 more
doaj   +1 more source

Dual MIMU Pedestrian Navigation by Inequality Constraint Kalman Filtering

Sensors, 2017
The foot-mounted inertial navigation system is an important method of pedestrian navigation as it, in principle, does not rely any external assistance. A real-time range decomposition constraint method is proposed in this paper to combine the information
Wei Shi, Yang Wang, Yuanxin Wu
doaj   +1 more source

Global Efforts to Reduce Paediatric Cancer Care Disparities in Radiotherapy: A Decade Change

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background We present an update on the status, needs and challenges faced by paediatric imaging and radiotherapy (RT) programmes globally after a previous survey conducted by the International Atomic Energy Agency (IAEA) 10 years prior. Methods We developed and distributed a 121‐question survey to radiation oncologists, medical physicists and ...
Raymond B. Mailhot Vega, Daniel J. Indelicato, Jeanette Parkes, Natia Esiashvili, Josué Hernández Benítez, Miriam Mikhail‐Lette, Olivera Cirajc Bjelac, Daniel Berger, Eva Ciurana, Yavuz Anacak, Lisbeth Cordero‐Mendez   +10 more
wiley   +1 more source

Neuropsychological and Educational Outcomes in Shwachman–Diamond Syndrome—A Report From the North American Shwachman–Diamond Syndrome Registry

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Shwachman–Diamond syndrome (SDS) is a rare autosomal recessive ribosomopathy characterized by bone marrow failure and multisystem involvement, with emerging evidence of associated neurocognitive impairment. Methods We conducted a retrospective study of 240 individuals with biallelic Shwachman–Bodian–Diamond syndrome (SBDS) mutations
Jane Koo, Melissa Gerstle, Leah Cheng, Richard Cooper, Katherine Coyne, Claire Dusa, Naomi E. Joffe, Diana Schwarz, Sarah Steltz, Akiko Shimamura, Kasiani C. Myers, Thea Quinton   +11 more
wiley   +1 more source

Multiradar Collaborative Task Scheduling Algorithm Based on Graph Neural Networks with Model Knowledge Embedding

Leida xuebao
Modern radar systems face increasingly complex challenges in tasks such as detection, tracking, and identification. The diversity of task types, limited data resources, and strict execution time requirements make radar task scheduling a strongly NP-hard ...
Haoqing LI, Dian YU, Changchun PAN, Wenxian YU, Dongying LI   +4 more
doaj   +1 more source

Downlink Ergodic Rate Analysis for Virtual Cell Based Cloud Radio Access Networks

IEEE Access, 2017
Cloud Radio Access Network (CRAN) is a promising approach to cope with the challenges of next generation mobile communications. This paper studies the downlink ergodic rate of a (N, K) virtual cell-based CRAN, in which each mobile station (MS) selects ...
Ming Cheng, Jun-Bo Wang, Yongpeng Wu, Min Lin   +3 more
doaj   +1 more source

A Location Privacy Attack Based on the Location Sharing Mechanism with Erroneous Distance in Geosocial Networks

Sensors, 2020
Geographical social networks (GSN) is an emerging research area. For example, Foursquare, Yelp, and WeChat are all well-known service providers in this field. These applications are also known as location-based services (LBS).
Tu-Liang Lin, Hong-Yi Chang, Sheng-Lin Li   +2 more
doaj   +1 more source