2,050 Hits in 9.0 sec

User-Generated Content: A Promising Data Source for Urban Informatics [chapter]

Song Gao, Yu Liu, Yuhao Kang, Fan Zhang
2021 The Urban Book Series  
First, we use geotagged social media data, a type of single-sourced UGC, to extract citizen demographics, mobility patterns, and place semantics associated with various urban functional regions.  ...  The third application links multi-sourced UGC to uncover urban spatial structures and human dynamics. We suggest that UGC data contain rich information in diverse aspects.  ...  Acknowledgements Song Gao would like to thank the support of this research from the Office of the Vice Chancellor for Research and Graduate Education at the University of Wisconsin-Madison with funding  ... 
doi:10.1007/978-981-15-8983-6_28 fatcat:hhigrdxtkfbkpctappf237jy64

Semantic enrichment of spatio-temporal trajectories for worker safety on construction sites

Muhammad Arslan, Christophe Cruz, Dominique Ginhac
2019 Personal and Ubiquitous Computing  
To reduce such fatalities, a system is proposed to monitor worker movements on a construction site by collecting their raw spatio-temporal trajectory data and enriching it with the relevant semantic information  ...  After pre-processing this collected data, three semantic enrichment techniques are used to construct semantically enriched trajectories which are as follows: (1) enrichment with the semantic points which  ...  Publisher's note Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations. Pers Ubiquit Comput  ... 
doi:10.1007/s00779-018-01199-5 fatcat:5kzg5cdhbzavxnph7uumqzl2iu

Semantic management of moving objects: A vision towards smart mobility

Sergio Ilarri, Dragan Stojanovic, Cyril Ray
2015 Expert systems with applications  
We propose a distributed framework for the semantic enrichment and management of mobility data and analyze the potential deployment and exploitation of such a framework. ⇑  ...  We argue that exploiting semantic techniques in mobility data management can bring valuable benefits to many domains characterized by the mobility of users and moving objects in general, such as traffic  ...  The authors acknowledge the support of the European COST Action IC0903 MOVE, that fostered research collaboration in this field.  ... 
doi:10.1016/j.eswa.2014.08.057 fatcat:bip2g2qfrjhxdcog5ofc7zczxa

Extracting Emergent Semantics from Large-Scale User-Generated Content [chapter]

Ioannis Kompatsiaris, Sotiris Diplaris, Symeon Papadopoulos
2012 Advances in Intelligent and Soft Computing  
The relevant techniques are reviewed and categorised according to their capability for scaling, multi-modal analysis, social networks analysis, semantic representation, real-time and spatio-temporal processing  ...  A showcase of such an emergent semantics extraction application, namely ClustTour, is also presented, and open issues and future challenges in this new field are discussed.  ...  The fact that users annotate and comment on the content in the form of tags, ratings, preferences, etc. and that these are applied on a daily basis, gives this data source an extremely dynamic nature that  ... 
doi:10.1007/978-3-642-28664-3_3 dblp:conf/ictinnovations/KompatsiarisDP11 fatcat:ehsp5zztzfh4pcciwkvsxhc5au

Social Media Alert and Response to Threats to Citizens

Nabil Adam, Jayan Eledath, Sharad Mehrotra, Nalini Venkatasubramanian
2012 Proceedings of the 8th IEEE International Conference on Collaborative Computing: Networking, Applications and Worksharing  
These components include mechanisms to model event level semantic information, a platform for implementing multi-sensor fusion, mechanisms for estimating the veracity of information, data cleaning to reduce  ...  Social media, such as blogs, Twitter, and information portals, have emerged as the dominant communication mechanism of society.  ...  Their contributions to the concept, design, and architecture of Smart-C are gratefully acknowledged.  ... 
doi:10.4108/icst.collaboratecom.2012.250713 dblp:conf/colcom/AdamEMV12 fatcat:zhcioeeclrc63bhdu2lmwjvxuu

Semantic Annotation of Mobility Data using Social Media

Fei Wu, Zhenhui Li, Wang-Chien Lee, Hongjian Wang, Zhuojie Huang
2015 Proceedings of the 24th International Conference on World Wide Web - WWW '15  
Previous research on mobility data mining has been mainly focused on mining patterns using only the mobility data. In this paper, we study the problem of using social media to annotate mobility data.  ...  Combining the mobility data and surrounding social media data enables us to semantically understand why a person travels to a location at a particular time (e.g., attending a local event or visiting a  ...  Potential data sources include environment data, news data, and crime data. Figure 1 : 1 An example of semantic annotation on location history using social media.  ... 
doi:10.1145/2736277.2741675 dblp:conf/www/WuLLWH15 fatcat:frp7moiqxzcu5muv576hojd3y4

SPUD - Semantic Processing of Urban Data

Spyros Kotoulas, Vanessa Lopez, Raymond Lloyd, Marco Luca Sbodio, Freddy Lecue, Martin Stephenson, Elizabeth Daly, Veli Bicer, Aris Gkoulalas-Divanis, Giusy Di Lorenzo, Anika Schumann, Pol Mac Aonghusa
2014 Social Science Research Network  
datasets coming from distributed data sources and spanning multiple domains.  ...  We demonstrate our approach through a system operating on real data in Dublin and we show that semantic technologies can be used to obtain business results in an environment with hundreds of heterogenous  ...  and Consolidation of multi-faceted information, focusing on searching and visualizing heterogenous data from several sources, including social media, linked data and government data and aggregating this  ... 
doi:10.2139/ssrn.3199081 fatcat:zvu6gxtq4vg5bkxefzy67j6wf4

A planetary nervous system for social mining and collective awareness

F. Giannotti, D. Pedreschi, A. Pentland, P. Lukowicz, D. Kossmann, J. Crowley, D. Helbing
2012 The European Physical Journal Special Topics  
personal data, so that users may allow access and use of their data for their own good and the common good.  ...  level.Social mining is the problem of discovering patterns and models of human behaviour from the sensed data across the various social dimensions by data mining, machine learning and social network analysis  ...  The authors are indebted with many people for inspiring discussions, contributions, comments and criticisms, and remarkably: Andrzej Nowak, John Shawe- Taylor  ... 
doi:10.1140/epjst/e2012-01688-9 fatcat:4bjj4ukpzvhd5fhpt2xnf45eli

Social media in public health

T. A. Kass-Hout, H. Alhinnawi
2013 British Medical Bulletin  
data and information' using mobile phones.  ...  This social network and news platform provides geographic and semantic visualizations based on multiple coordinated view interface.  ... 
doi:10.1093/bmb/ldt028 pmid:24103335 fatcat:wbgxhuxqzba3dktxpo6mz3bd2e

Volunteered Geographic Information: Interpretation, Visualisation and Social Computing (VGIscience)

Dirk Burghardt, Wolfgang Nejdl, Jochen Schiewe, Monika Sester
2018 Proceedings of the ICA  
The interpretation, visualisation and usage of such multi-source data is challenging because of the large heterogeneity, the differences in quality, the high update frequencies, the varying spatial-temporal  ...  during crisis mapping as well as the passive collection of data via the user's location-enabled mobile devices.  ...  Acknowledgements This work was supported by the German Research Foundation as part of the priority programme "Volunteered Geographic Information: Interpretation, Visualisation and Social Computing" (VGIscience  ... 
doi:10.5194/ica-proc-1-15-2018 fatcat:fyba6yvkyvaibforvw5vgov7mm

Introducing Social Semantic Journalism

Bahareh Rahmanzadeh Heravi, Jarred McGinnis
2015 Journal of Media Innovations  
In the event of breaking news, a wealth of crowd-sourced data, in the form of text, video and image, becomes available on the Social Web.  ...  This paper describes a framework of technologies that can be employed by journalists and editors to realise Social Semantic Journalism.  ...  Content Discovery Content Discovery is the ingestion the raw content from social media and enriching it with semantic metadata, which can be made use of by the other phases.  ... 
doi:10.5617/jmi.v2i1.868 fatcat:yzazeoik75ga5ps2ygx7jfidmi

A Survey on Visual Analytics of Social Media Data

Yingcai Wu, Nan Cao, David Gotz, Yap-Peng Tan, Daniel A. Keim
2016 IEEE transactions on multimedia  
The unprecedented availability of social media data offers substantial opportunities for data owners, system operators, solution providers and end users to explore and understand social dynamics.  ...  However, the exponential growth in the volume, velocity, and variability of social media data prevents people from fully utilizing such data.  ...  : Geo-tagged social media data have been used to uncover user mobility patterns.  ... 
doi:10.1109/tmm.2016.2614220 fatcat:o4nc5eutpfhrplo4joa45dxbnq

The CitySPIN Platform: A CPSS Environment for City-Wide Infrastructures

Amr Azzam, Peb Ruswono Aryan, Alessio Cecconi, Claudio Di Ciccio, Fajar J. Ekaputra, Javier D. Fernández, Sotiris Karampatakis, Elmar Kiesling, Angelika Musil, Marta Sabou, Pujan Shadlau, Thomas Thurner
2019 International Conference on the Internet of Things  
unstructured sources, including open data and social data.  ...  To that end, we develop methods and techniques based on Semantic Web and Linked Data technologies for the acquisition and integration of heterogeneous data from disparate structured, semi-structured and  ...  legacy data, streaming data, social media data, open data).  ... 
dblp:conf/iot/AzzamACCEFKKMSS19 fatcat:t6vgvhqx3zehndpwrmqajluj64

Semantic Trajectory Analytics and Recommender Systems in Cultural Spaces

Sotiris Angelis, Konstantinos Kotis, Dimitris Spiliotopoulos
2021 Big Data and Cognitive Computing  
This paper focuses on the investigation of open issues and challenges at the intersection of these two topics, emphasising semantic technologies and machine learning techniques.  ...  The paper presents a system architecture design for the recognition of semantic trajectory patterns and for the inferencing of possible synthesis of visitor trajectories in cultural spaces, such as museums  ...  Conflicts of Interest: The authors declare no conflict of interest.  ... 
doi:10.3390/bdcc5040080 fatcat:kjdlbtlxmzatjp7iiq23uiff4e

Cloud Mobile Media: Reflections and Outlook

Yonggang Wen, Xiaoqing Zhu, Joel J. P. C. Rodrigues, Chang Wen Chen
2014 IEEE transactions on multimedia  
This paper surveys the emerging paradigm of cloud mobile media. We start with two alternative perspectives for cloud mobile media networks: an end-to-end view and a layered view.  ...  Finally, this paper concludes with an outlook of open research problems for realizing the vision of cloud-based mobile media.  ...  ACKNOWLEDGMENT The authors would like to thank the anonymous reviewers for their insightful comments to improve the quality of this paper.  ... 
doi:10.1109/tmm.2014.2315596 fatcat:h4ef3oedqrdd3obktmczbgq2la
« Previous Showing results 1 — 15 out of 2,050 results