9,379 Hits in 4.1 sec

An Analysis of Human-centered Geolocation [article]

Kaili Wang, Yu-Hui Huang, Jose Oramas, Luc Van Gool, Tinne Tuytelaars
2018 arXiv   pre-print
Further inspection of the trained models shows that human-centered characteristics, like clothing style, physical features, and accessories, are informative for the task at hand.  ...  We conduct a user study, as well as an evaluation of automatic methods based on convolutional neural networks.  ...  Image-bFP Human-bFP Finetuned 38.26 35.16 Deep-IM2GPS [24] 33.49 24.88 Publicly available at An-Analysis-of-Human-centered-Geolocation  ... 
arXiv:1707.02905v3 fatcat:bxnyn2htz5fzjajrfnz7cp2t7q

RescueAR: Augmented Reality Supported Collaboration for UAV Driven Emergency Response Systems [article]

Ankit Agrawal, Jane Cleland-Huang
2021 arXiv   pre-print
Traditional radio-based information exchange between humans during an emergency response suffers from a lack of visualization and often results in miscommunication.  ...  the exchange of geolocation information, and complement existing communication tools during the UAV-supported emergency response.  ...  According to our geolocation accuracy analysis discussed in Section 4.1, RescueAR is able to calculate the geolocation of the target objects in an aerial video stream within a range of 2 meters under ideal  ... 
arXiv:2110.00180v1 fatcat:uvleergf5zhaxfejzmc5r3mwpm

Experimental Simulation-Based Performance Evaluation of an SMS-Based Emergency Geolocation Notification System

Isibor Osebor, Sanjay Misra, Nicholas Omoregbe, Adewole Adewumi, Luis Fernandez-Sanz
2017 Journal of Healthcare Engineering  
This paper therefore implemented and evaluated the performance of an SMS-based emergency geolocation notification system with emphasis on its SMS delivery time and the system's geolocation and dispatch  ...  In an emergency, a prompt response can save the lives of victims. This statement generates an imperative issue in emergency medical services (EMS).  ...  The key areas analyzed were SMS delivery time analysis and system geolocation and dispatch time analysis.  ... 
doi:10.1155/2017/7695045 pmid:29065643 pmcid:PMC5603145 fatcat:mi7aaq6hgrawrolz5cz4zs3uvi

The Potential of Smartphone Apps in Informing Pro- and Anti-Tobacco Messaging Efforts Among Underserved Communities (Preprint)

Edmund W. J. Lee, Mesfin Awoke Bekalu, Rachel McCloud, Donna Vallone, Monisha Arya, Nathaniel Osgood, Xiaoyan Li, Sara Minsky, Kasisomayajula Viswanath
2019 Journal of Medical Internet Research  
We analyzed the data using spatial autocorrelation, optimized hot spot analysis, and fitted power-law distribution to identify the TROs that attracted the most human traffic using mobility data.  ...  In Massachusetts, clusters of TROs (Dorchester Center and Jamaica Plain) and reported smoking behaviors (Dorchester Center, Roxbury Crossing, Lawrence) were found in economically disadvantaged neighborhoods  ...  for Geographic Analysis at Harvard University.  ... 
doi:10.2196/17451 pmid:32673252 fatcat:3pv6cibranccnmv5f5ih7u2gbq

Forensic Microbiome Database: A Tool for Forensic Geolocation Meta-Analysis Using Publicly Available 16S rRNA Microbiome Sequencing

Harinder Singh, Thomas Clarke, Lauren Brinkac, Chris Greco, Karen E. Nelson
2021 Frontiers in Microbiology  
The human microbiome has been proposed as a tool to investigate different forensic questions, including for the identification of multiple personal information.  ...  However, the fragmented state of the publicly available data has retarded the development of analysis techniques and, therefore, the implementation of microbiomes as a forensic tool.  ...  on a polar graph with their similarity to the sample indicated by the distance to the center (B). 16S rRNA microbiomes obtained from stool samples of an individual residing in St.  ... 
doi:10.3389/fmicb.2021.644861 pmid:33833745 pmcid:PMC8022992 fatcat:rgq54n3ku5e3bc45qivteumcue

Web Video Geolocation by Geotagged Social Resources

Yi-Cheng Song, Yong-Dong Zhang, Juan Cao, Tian Xia, Wu Liu, Jin-Tao Li
2012 IEEE transactions on multimedia  
Index Terms-Geolocation by geotagged relevant videos, geolocation by relevant geotagged images, label propagation, V2L, video content analysis, web video geolocation.  ...  The experiments have demonstrated the effectiveness of both methods, with the geolocation accuracy much better than state-of-the-art approaches.  ...  Then, the center of image cluster is selected as the geolocation result of video .  ... 
doi:10.1109/tmm.2011.2172937 fatcat:6hgl2mtd5bgo3f6tstpruazluy

Recent Advances in Indoor Geolocation Techniques

Xinrong Li, Nayef Alsindi
2013 International Journal of Wireless Information Networks  
However, GPS provides limited coverage indoors and poor quality information in urban areas and near buildings which has motivated research in indoor geolocation in the last decade.  ...  The integration of location information with day-to-day applications will grow significantly over the next decade as the technology's accuracy evolves.  ...  Therefore, such models are not useful in the design and analysis of indoor geolocation techniques.  ... 
doi:10.1007/s10776-013-0235-3 fatcat:w422bwttifevdhhr7w457cctmm

Can poachers find animals from public camera trap images? [article]

Sara Beery, Elizabeth Bondi
2021 arXiv   pre-print
To protect the location of camera trap data containing sensitive, high-target species, many ecologists randomly obfuscate the latitude and longitude of the camera when publishing their data.  ...  For example, they may publish a random location within a 1km radius of the true camera location for each camera in their network.  ...  the authors and do not necessarily reflect the views of these organizations.  ... 
arXiv:2106.11236v1 fatcat:wcrppmc65rba3iphhf5mqnz3ne

Visualization, Spatiotemporal Patterns, and Directional Analysis of Urban Activities Using Geolocation Data Extracted from LBSN

Muhammad Rizwan, Wanggen Wan, Luc Gwiazdzinski
2020 ISPRS International Journal of Geo-Information  
In a LBSN, users socialize by sharing their location (also referred to as "geolocation") in the form of a tweet (also referred to as a "check-in"), which contains information in the form of, but is not  ...  The results of the directional analysis at the district level reflect the change in the trajectory and spatiotemporal dynamics of activities.  ...  We only focused on an analysis of the spatiotemporal dynamics patterns of human activities using LBSN data.  ... 
doi:10.3390/ijgi9020137 fatcat:spatuhhtvfhwta24ebe3q73hqa

Mapping social activities and concepts with social media (Twitter) and web search engines (Yahoo and Bing): a case study in 2012 US Presidential Election

Ming-Hsiang Tsou, Jiue-An Yang, Daniel Lusher, Su Han, Brian Spitzberg, Jean Mark Gawron, Dipak Gupta, Li An
2013 Cartography and Geographic Information Science  
engine (Twitter API), IP geolocation methods, and GIS functions (e.g., kernel density and raster-based map algebra methods).  ...  We hope that this new approach may provide a new research direction for studying human thought, web content, and social activities.  ...  Global Diffusion of Ideas and the Semantic Web".  ... 
doi:10.1080/15230406.2013.799738 fatcat:ijvvuftsdvadzn3j6nnejd34eq

Using Social Media To Increase HIV Testing Among Men Who Have Sex with Men — Beijing, China, 2013–2017

Liming Wang, Dylan Podson, Zihuang Chen, Hongyan Lu, Vania Wang, Colin Shepard, John K. Williams, Guodong Mi
2019 Morbidity and Mortality Weekly Report (MMWR)  
The prevalence of human immunodeficiency virus (HIV) infection in China is low overall (0.06%) (1); however, it is substantially higher (8.0%) among men who have sex with men (MSM) (2), and the stigmatization  ...  To assess trends in use of HIV testing services, Blued and CDC's China HIV program examined testing at six Blued-operated Beijing HIV testing centers from 2 years before the campaign launch in 2015 through  ...  Acknowledgments Human immunodeficiency virus program staff members at Blued; CDC China, Beijing; and other Chinese government counterparts.  ... 
doi:10.15585/mmwr.mm6821a3 pmid:31145721 pmcid:PMC6542479 fatcat:bj2isgzuczda5jhcuzv6fcm65u

GPS-Based Geolocation of Consumer IP Addresses [article]

James Saxon, Nick Feamster
2021 arXiv   pre-print
Datasets that ge olocate IP addresses based on GPS offer superlative accuracy and precision for IP geolocation and thus provide an unprecedented opportunity to understand both the accuracy of existing  ...  Finally, we evaluate the suitability of existing IP geolocation databases for understanding Internet access and performance in human populations within specific geographies and demographics.  ...  In addition to work on IP address locations, our data also shed light on the persistence of dynamically assigned IP addresses, itself an active area of analysis.  ... 
arXiv:2105.13389v2 fatcat:uhjl42u5wffvfec7765n6dcys4

A Statistical Approach for Studying the Spatio-Temporal Distribution of Geolocated Tweets in Urban Environments

Fernando Santa, Roberto Henriques, Joaquín Torres-Sospedra, Edzer Pebesma
2019 Sustainability  
Our proposal considers a negative binomial regression analysis for the time series of counts of tweets as a first step.  ...  An in-depth descriptive approach to the dynamics of the urban population is fundamental as a first step towards promoting effective planning and designing processes in cities.  ...  Our approach demonstrates that spatio-temporal statistical analysis provides valuable tools to analyze a significant amount of geolocated human-generated data and provides insights into how human activities  ... 
doi:10.3390/su11030595 fatcat:t27wvbvvondhpaqhtu5chrwzki

CIME: Context-aware geolocation of emergency-related posts

Gabriele Scalia, Chiara Francalanci, Barbara Pernici
2021 Geoinformatica  
The algorithm was evaluated on a recent major emergency event demonstrating better performance with respect to the state of the art in terms of total number of geolocated posts, geolocation accuracy and  ...  This paper presents an algorithm, called CIME, that aims to identify and geolocate emergency-related posts that are relevant for mapping purposes.  ...  and Bernard Allenbach from the University of Strasbourg for his comments on a previous draft of this paper.  ... 
doi:10.1007/s10707-021-00446-x fatcat:xovyjlcwhbhopkj7roheuh6hgi

AsonMaps: A platform for aggregation visualization and analysis of disaster related human sensor network observations

Oleg Aulov, Adam Price, Milton Halem
2014 International Conference on Information Systems for Crisis Response and Management  
In this paper, we describe AsonMaps, a platform for collection, aggregation, visualization and analysis of near real-time, geolocated quantifiable information from a variety of heterogeneous social media  ...  Hurricane Sandy disaster is examined as a use-case scenario discussing the different types of quantifiable information that can be extracted from Instagram and Twitter.  ...  Many of the users share their geolocation and as a result we can observe a stream of near real-time geolocated human sensor observations.  ... 
dblp:conf/iscram/AulovPH14 fatcat:f5lt7pl7fnfmhc4eloizguggiy
« Previous Showing results 1 — 15 out of 9,379 results