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A Semantic Expansion Model for VGI Retrieval
2019
ISPRS International Journal of Geo-Information
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This paper constructed an OSM ontology model with semantic property items. A query expansion method is also proposed based on the similarity of properties of the ontology model. ...
This study provides a method that can be used as a reference for subsequent research on spatial information retrieval. ...
Acknowledgments: The authors would like to thank editors and reviewers for their valuable comments.
Conflicts of Interest: The authors declare no conflicts of interest. ...
doi:10.3390/ijgi8120589
fatcat:jl35frjuhraqzfkcnjkuirrhty
Exploring the Distribution Patterns of Flickr Photos
2019
ISPRS International Journal of Geo-Information
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In this paper, we explore the distribution pattern for most relevant VGI images of specific landmarks to extend the current quality analysis, and to provide guidance for improving the data-retrieval process ...
In recent years, volunteered-geographic-information (VGI) image data have served as a data source for various geographic applications, attracting researchers to assess the quality of these images. ...
For instance, a comprehensive solution that combined image retrieval, scene summarization, and structure from motion (SFM) techniques to construct 3D landmark models was proposed in [9] . ...
doi:10.3390/ijgi8090418
fatcat:j6ltq67s6rdsxfxe2sagcpe3xu
MATCHING ALTERNATIVE ADDRESSES: A SEMANTIC WEB APPROACH
2015
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences
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VGI sources neither will conform specific vocabularies nor will remain in a specific schema for a long period of time. ...
Semantic web is a capable tool for developing technologies that deal with lexical and numerical calculations and estimations. ...
SPARQL is an RDF query language, that is, a semantic query language for databases, able to retrieve and manipulate data stored in Resource Description Framework (RDF) format. ...
doi:10.5194/isprsarchives-xl-1-w5-63-2015
fatcat:nnbqri264jhhncwzewgnb36wjy
A Survey of Volunteered Open Geo-Knowledge Bases in the Semantic Web
[chapter]
2013
Intelligent Systems Reference Library
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2014 pre-print arXiv:1401.2610v1 fatcat:llpkwbpvgnb45faqnk7isgoute
Numerous efforts in the Semantic Geospatial Web, Volunteered Geographic Information (VGI), and the Linking Open Data initiative have converged in a constellation of open knowledge bases, freely available ...
A new knowledge base, the OpenStreetMap Semantic Network, is outlined as our contribution to this area. ...
Acknowledgements The research presented in this paper was funded by a Strategic Research Cluster grant (07/SRC/I1168) by Science Foundation Ireland under the National Development Plan. ...
doi:10.1007/978-3-642-37688-7_5
fatcat:i72rmxk36fbnrmnrdpkmccrbfu
Geographic knowledge extraction and semantic similarity in OpenStreetMap
2012
Knowledge and Information Systems
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Because of its simple and open semantic structure, the OSM approach often results in noisy and ambiguous data, limiting its usability for analysis in information retrieval, recommender systems, and data ...
Devising a mechanism for computing the semantic similarity of the OSM geographic classes can help alleviate this semantic gap. The contribution of this paper is twofold. ...
Leslie Daly (UCD School of Public Health, Physiotherapy & Population Science) for his insightful comments on statistical meta-analysis. ...
doi:10.1007/s10115-012-0571-0
fatcat:yrhsjzxr6jf2vkyurkymvjd24q
A Proximity-Based Semantic Enrichment Approach of Volunteered Geographic Information: A Study Case of Waste of Water
2019
Information
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Finally, a process is proposed, which returns semantically similar VGI contributions based on queries made by users. ...
This study proposes a VGI semantic enrichment method using linked data and thesaurus. The method has two stages, one automatic and one manual. ...
RDF is a generic data model based on graph structure that describes things in the world. The RDF model codes data as triplets: subject, predicate, object. ...
doi:10.3390/info10070234
fatcat:2rcza5jzf5dkvgdik26mw4j5ka
Exploration of cultural heritage information via textual search queries
2016
Proceedings of the 18th International Conference on Human-Computer Interaction with Mobile Devices and Services Adjunct - MobileHCI '16
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expansion. ...
In order to address this issue, we propose to support textual search as the basic interaction model, exploiting linguistic information, together with category exploration, for query interpretation and ...
Acknowledgments This work is partially funded by project MIMOSA (MultIModal Ontolgy-driven query system for the heterogeneous data of a SmArtcity, "Progetto di Ateneo Torino_call2014_L2_157", 2015-17). ...
doi:10.1145/2957265.2962648
dblp:conf/mhci/ArdissonoLMSVR16
fatcat:lmqqr6eyxrdbnmeio5pkadbouy
Data and Metadata Management for Better VGI Reusability
[chapter]
2017
Mapping and the Citizen Sensor
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The rapid expansion of citizen science projects and crowdsourcing applications is yielding a huge and varied pool of Volunteered Geographic Information (VGI) on a wide variety of themes. ...
open source technologies which can underpin robust and sustainable data management for VGI. ...
While the above holds for all data models, it particularly also holds for models of data quality. ...
doi:10.5334/bbf.k
fatcat:blw7ofx5s5ft3edbal7kipuj6u
Computing the semantic similarity of geographic terms using volunteered lexical definitions
2013
International Journal of Geographical Information Science
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A consensual lexicon is a key factor to enable this open production model. Lexical definitions help demarcate the boundaries of terms, forming a thin semantic ground on which knowledge can travel. ...
Computing the semantic similarity of these 'volunteered lexical definitions' has a wide range of applications in GIScience, including information retrieval, data mining and information integration. ...
For example, the semantic model underlying OSM is an open tagging system with a recommended set of terms called 'tags'. ...
doi:10.1080/13658816.2013.790548
fatcat:fvwcgci7prbbxiobskaca34n3q
Implicit, Formal and Powerful Semantics in Geoinformation
2021
ISPRS International Journal of Geo-Information
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., soft) semantics depending on the kind of their input. ...
The outcomes of the analysis sheds some light on the diverse methods and technologies that are more suited to model and deal with specific forms of geosemantics. ...
Typically, this is seen as a solution to semantic heterogeneity and an opportunity for applying query expansion in information retrieval (in [186] the authors provide examples for both of these). ...
doi:10.3390/ijgi10050330
fatcat:tscz7fb6evbhdo7fw4lyf3i4yq
Using textual volunteered geographic information to model nature-based activities: A case study from Aotearoa New Zealand
2021
Journal of Spatial Information Science
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A boom in volunteered geographic information has led to extensive data-driven exploration and modeling of places. ...
Importantly, the study provides an annotated corpus that can be used as a training dataset for developing methods to automatically capture aspects of recreation experiences in texts. ...
for providing the infrastructure for conducting this research. ...
doi:10.5311/josis.2021.23.157
fatcat:kbcbudzesjbldlzjkvktfxsfdm
Enabling Semantic Search and Knowledge Discovery for ArcGIS Online: A Linked-Data-Driven Approach
[chapter]
2015
Lecture Notes in Geoinformation and Cartography
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Based on a human participant experiment, we calibrate a linear regression model for semantic search, and demonstrate the flexible queries for knowledge discovery that are not possible in the existing Web ...
To address these difficulties, we combine data-driven techniques with theory-driven approaches to enable semantic search and knowledge discovery for ArcGIS Online. ...
Dawn Wright, as well as the three anonymous reviewers for their constructive comments and feedbacks. ...
doi:10.1007/978-3-319-16787-9_7
fatcat:wmokxdep55hjfewg5hiocwocwa
Relevance Assessment of Crowdsourced Data (CSD) Using Semantics and Geographic Information Retrieval (GIR) Techniques
2018
ISPRS International Journal of Geo-Information
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This research tested a relevance assessment approach for CSD by adapting relevance assessment techniques available in the GIR domain. ...
In this paper, information relevance has been explored through using geographic information retrieval (GIR) techniques to identify the most highly relevant information from a set of crowdsourced data. ...
Some CSD can be considered as a subset of VGI when user location is considered, as CSD often has limited location information compared to VGI [2] . ...
doi:10.3390/ijgi7070256
fatcat:xzgirafeurdwhdtspzsc44ikp4
A Novel Approach for Computing Semantic Relatedness of Geographic Terms
2015
Indian Journal of Science and Technology
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Whereas lexical definition demarcates the boundaries of a term and provides valuable semantic space for deducting the meaning of a term, it can have prominent impact in the efficiency of the proposed approach ...
While most of the proposed measures in this context are only able to compute semantic similarity, in this paper, the notion of geosemantic relatedness is discussed and from which a novel approach for computing ...
Recently 29 , developed a method which leveraged Volunteered Geographic Information (VGI) for computing semantic relatedness. ...
doi:10.17485/ijst/2015/v8i27/60811
fatcat:xoydodhrwnfrbjphxmwzqlftz4
Crowdsourced mapping of land use in urban dense environments: An assessment of Toronto
2015
The Canadian Geographer / Le Géographe canadien
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The findings confirm a promising outlook for harnessing VGI for urban land use mapping for Toronto. ...
This article identifies land use patterns using VGI and offers a comparative assessment with traditionally classified land use features from remote sensing imagery for Toronto. ...
Semantic similarity is of great importance for the urban land use comparison of OSM data (Ballatore et al. 2013 ). ...
doi:10.1111/cag.12170
fatcat:7evsqknc5zhbborz3jdiwa5c2a
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