Filters








149 Hits in 2.9 sec

On the validity of geosocial mobility traces

Zengbin Zhang, Lin Zhou, Xiaohan Zhao, Gang Wang, Yu Su, Miriam Metzger, Haitao Zheng, Ben Y. Zhao
2013 Proceedings of the Twelfth ACM Workshop on Hot Topics in Networks - HotNets-XII  
Recently, researchers have begun to focus on geosocial mobility traces, e.g. Foursquare checkin traces, because of their availability and scale. But are we conceding correctness in our zeal for data?  ...  In this paper, we take initial steps towards quantifying the value of geosocial datasets using a large ground truth dataset gathered from a user study.  ...  To the best of our knowledge, our study is the first to quantitatively evaluate the accuracy and validity of geosocial mobility traces.  ... 
doi:10.1145/2535771.2535786 dblp:conf/hotnets/ZhangZZWSMZZ13 fatcat:omgc74jwkzctbnf7qkkipfzu2y

Personal Activity Centres and Geosocial Data Analysis: Combining Big Data with Small Data [chapter]

Colin Robertson, Rob Feick, Martin Sykora, Ketan Shankardass, Krystelle Shaughnessy
2017 Lecture Notes in Geoinformation and Cartography  
These findings indicate activity centres defined from Twitter do relate to general spatial activities, but the limited degree of spatial variability on an individual level limits the applications of geosocial  ...  Additionally, we find that the broader pattern of geosocial footprints indicated that 35 percent of users have only one activity centre, 30 percent have two activity centres, and 14 percent have three  ...  ACKNOWLEDGMENTS The authors gratefully acknowledge our study participants as well as the Social Sciences and Humanities Research Council of Canada for funding this research.  ... 
doi:10.1007/978-3-319-56759-4_9 fatcat:dck6iwralbazzf6zjcwvc3suya

Improving Prediction of Real-Time Loneliness and Companionship Type Using Geosocial Features of Personal Smartphone Data [article]

Congyu Wu, Amanda N. Barczyk, R. Cameron Craddock, Gabriella M. Harari, Edison Thomaz, Jason D. Shumake, Christopher G. Beevers, Samuel D. Gosling, David M. Schnyer
2020 arXiv   pre-print
experience and companionship type and (2) propose and validate novel geosocial features of smartphone-based Bluetooth and GPS data for predicting loneliness and companionship type in real time.  ...  We base our features on intuitions characterizing the quantity and spatiotemporal predictability of an individual's Bluetooth encounters and GPS location clusters to capture personal significance of social  ...  Acknowledgments This work was supported by Whole Communities-Whole Health, a research grand challenge at the University of Texas at Austin.  ... 
arXiv:2010.09807v1 fatcat:lzksalbql5fu3emdqazigfknjy

A Survey of Open Source User Activity Traces with Applications to User Mobility Characterization and Modeling [article]

Sinjoni Mukhopadhyay King, Faisal Nawab, Katia Obraczka
2021 arXiv   pre-print
The current state-of-the-art in user mobility research has extensively relied on open-source mobility traces captured from pedestrian and vehicular activity through a variety of communication technologies  ...  Second, once they have found the traces, they still need to figure out whether the traces are adequate to their needs. The purpose of this survey is three-fold.  ...  The unique style of geosocial mobility traces can provide insightful information for urban planning and retail real estate to property owners and operators.  ... 
arXiv:2110.06382v2 fatcat:w3ynh7djsngfjb7v6ns7on4nee

Privacy Threats and Protection Recommendations for the Use of Geosocial Network Data in Research

Ourania Kounadi, Bernd Resch, Andreas Petutschnig
2018 Social Sciences  
In this paper, we examine recent research efforts on the spectrum of privacy issues related to geosocial network data and identify the contributions and limitations of these research efforts.  ...  On the one hand, inference attack studies explore the types of personal information that can be revealed and the methods used to extract it.  ...  Shokri et al. (2011) , in their work on location privacy of mobile users, developed a quantifier (metric) for location privacy that is based on the incorrectness of the adversary in their inference attack  ... 
doi:10.3390/socsci7100191 fatcat:jp3adsuuvfeprppwt2yaxfl6yy

A Proactive and Practical COVID-19 Testing Strategy

Kuan Song, Shiqi Jiao, Qiang Zhu, Huitao Wu
2020 IEEE Engineering Management Review  
We observe that COVID-19 high-risk groups are located in the hubs and cliques of our geosocial network, formed by the close encounters of people during daily life.  ...  However, to protect privacy, we recommend constructing the geosocial network of anonymized cellphones, not named individuals.  ...  ACKNOWLEDGMENT The authors would like to thank L. Yu, C. Deng, C. Pei, W. Jiang, L. Xu, and K. Dong for many rounds of fruitful discussions.  ... 
doi:10.1109/emr.2020.3017648 fatcat:zss7rndpcvag3di6t5eb3bshvy

Understanding Public Opinions from Geosocial Media

Shanqi Zhang, Rob Feick
2016 ISPRS International Journal of Geo-Information  
The study suggests that geosocial media can help identify geographies of public perceptions concerning public facilities and services and have potential to complement other methods of gauging public sentiment  ...  related to the planning and construction of a new light rail transit line.  ...  Acknowledgments: The authors gratefully acknowledge funding provided by Canada's Social Sciences  ... 
doi:10.3390/ijgi5060074 fatcat:nohfb33gw5hbbnfjjykrxcdxne

Cultural investment and urban socio-economic development: a geosocial network approach

Xiao Zhou, Desislava Hristova, Anastasios Noulas, Cecilia Mascolo, Max Sklar
2017 Royal Society Open Science  
However, due to the lack of large-scale data with a fine spatio-temporal resolution, there have been limitations in terms of how planners can track the impact and measure the effectiveness of cultural  ...  Being able to assess the impact of government-led investment onto socio-economic indicators in cities has long been an important target of urban planning.  ...  We thank Foursquare for supporting this research by providing the dataset employed in the analysis. References  ... 
doi:10.1098/rsos.170413 pmid:28989752 pmcid:PMC5627092 fatcat:m4igbfkhmrh5rmm4tuc2cwhamu

Planet-scale human mobility measurement

Pan Hui, Richard Mortier, Michal Piórkowski, Tristan Henderson, Jon Crowcroft
2010 Proceedings of the 2nd ACM International Workshop on Hot Topics in Planet-scale Measurement - HotPlanet '10  
For example, through understanding large-scale human mobility, we can track and model and contain the spread of epidemics of various kinds.  ...  Research into, and design and construction of mobile systems and algorithms requires access to large-scale mobility data. Unfortunately, the research community lacks such data.  ...  Even if we extrapolate large-scale mobility traces from small-scale traces, the problem of validating the extrapolation remains.  ... 
doi:10.1145/1834616.1834618 dblp:conf/mobisys/HuiMPHC10 fatcat:dptztqzrozgjffz4qnw26o43xa

To Enhance Recommendation by Providing Location Privacy in GeoSocial Application
english

Charushila Kapde, Priyanka Kumbhar
2015 International Journal of Innovative Research in Computer and Communication Engineering  
User stores encrypted data on the server by using transformations. When user allows recommender then they can access the users location and data. LocX provides more privacy for today's mobile devices.  ...  Now a days there are many geo social applications which are based on large extent, so people are more concern about the security of location and respective data stored at that location.  ...  Using evaluation, based on both synthetic and real-world LBSA traces, LocX adds little computational and communication overhead to existing systems. LocX prototype runs efficiently on mobile phones.  ... 
doi:10.15680/ijircce.2015.0305023 fatcat:m3j6x44iejazfgpjo64ebdllri

Nonvisual, Distal Tracking of Mobile Remote Agents in Geosocial Interaction [chapter]

Steven Strachan, Roderick Murray-Smith
2009 Lecture Notes in Computer Science  
With the recent introduction of mass-market mobile phones with location, bearing and acceleration sensing, we are on the cusp of significant progress in location-based interaction, and highly interactive  ...  In order to examine the feasibility of such a system we describe an experiment with an eyes-free, mobile implementation which allows users to find a target user, engage with them by pointing and tilting  ...  We are grateful for support from: SFI grant 00/RFP06/CMS052, EPSRC project EP/E042740/1, Multimodal, Negotiated Interaction in Mobile Scenarios, IST Programme of the European Commission, under PASCAL Network  ... 
doi:10.1007/978-3-642-01721-6_6 fatcat:t7zqvlgtgnbfvfp3oia7lwk63e

Toward Addressing Location Privacy Issues: New Affiliations with Social and Location Attributes

Vgena, Kitsiou, Kalloniatis, Kavroudakis, Gritzalis
2019 Future Internet  
This paper, after a systematic review on previous social and privacy location research, explores the overlapping of these fields in identifying users' social attributes through examining location attributes  ...  Users on their side are willing to disclose this kind of information in order to represent themselves in a socially acceptable online way.  ...  Conflicts of Interest: The authors declare no conflict of interest.  ... 
doi:10.3390/fi11110234 fatcat:dmgjhkuwdrg5dmhrhamqmi5t7y

Defining Local Experts: Geographical Expertise as a Basis for Geographic Information Quality

Colin Robertson, Rob Feick, Marc Herbstritt
2017 Conference On Spatial Information Theory  
As more data are produced by location sensors, mobile devices, and online participatory processes, the field of GIScience has grappled with issues of information quality, context, and appropriate analytical  ...  For contributed geographic information, quality is typically derived from a data user's trust in and/or perception of the reputation of the data producer.  ...  The authors would like to thank the participants that contributed to both case studies presented in this research.  ... 
doi:10.4230/lipics.cosit.2017.22 dblp:conf/cosit/RobertsonF17 fatcat:bqc22xuiyvenbk7yiju6mutldu

Preserving Location Privacy in Geosocial Applications

Krishna P.N. Puttaswamy, Shiyuan Wang, Troy Steinbauer, Divyakant Agrawal, Amr El Abbadi, Christopher Kruegel, Ben Y. Zhao
2014 IEEE Transactions on Mobile Computing  
Using geosocial applications, such as FourSquare, millions of people interact with their surroundings through their friends and their recommendations.  ...  The friends of a user share this user's secrets so they can apply the same transformation.  ...  Efficiency in terms of computation, bandwidth, and latency, to operate on mobile devices.  ... 
doi:10.1109/tmc.2012.247 fatcat:pwt5jsx4f5havlapwnauqslg5e

Socio-Geography of Human Mobility: A Study Using Longitudinal Mobile Phone Data

Santi Phithakkitnukoon, Zbigniew Smoreda, Patrick Olivier, Yamir Moreno
2012 PLoS ONE  
A relationship between people's mobility and their social networks is presented based on an analysis of calling and mobility traces for one year of anonymized call detail records of over one million mobile  ...  Citation: Phithakkitnukoon S, Smoreda Z, Olivier P (2012) Socio-Geography of Human Mobility: A Study Using Longitudinal Mobile Phone Data. PLoS ONE 7(6): e39253.  ...  This study sheds new light on the socio-geography of human mobility and we hope that our findings suggest new ways to use mobile phone data to investigate the interplay between people's mobility and their  ... 
doi:10.1371/journal.pone.0039253 pmid:22761748 pmcid:PMC3386290 fatcat:nzeafjziuzhothlsmcdfrpmohe
« Previous Showing results 1 — 15 out of 149 results