Semantic Enrichment of Mobility Data: A Comprehensive Methodology and the MAT-BUILDER System
The widespread adoption of personal location devices, the Internet of Mobile Things, and Location Based Social Networks, enables the collection of vast amounts of movement data. This data often needs to be enriched with a variety of semantic dimensions, or aspects, that provide contextual and hetero...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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IEEE
2023-01-01
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| Series: | IEEE Access |
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| Online Access: | https://ieeexplore.ieee.org/document/10227262/ |
| _version_ | 1797692129613447168 |
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| author | Francesco Lettich Chiara Pugliese Chiara Renso Fabio Pinelli |
| author_facet | Francesco Lettich Chiara Pugliese Chiara Renso Fabio Pinelli |
| author_sort | Francesco Lettich |
| collection | DOAJ |
| description | The widespread adoption of personal location devices, the Internet of Mobile Things, and Location Based Social Networks, enables the collection of vast amounts of movement data. This data often needs to be enriched with a variety of semantic dimensions, or aspects, that provide contextual and heterogeneous information about the surrounding environment, resulting in the creation of multiple aspect trajectories (MATs). Common examples of aspects can be points of interest, user photos, transportation means, weather conditions, social media posts, and many more. However, the literature does not currently provide a consensus on how to semantically enrich mobility data with aspects, particularly in dynamic scenarios where semantic information is extracted from numerous and heterogeneous external data sources. In this work, we aim to address this issue by presenting a comprehensive methodology to facilitate end users in instantiating their semantic enrichment processes of movement data. The methodology is agnostic to semantic aspects and external semantic data sources. The vision behind our methodology rests on three pillars: (1) three design principles which we argue are necessary for designing systems capable of instantiating arbitrary semantic enrichment processes; (2) the MAT-Builder system, which embodies these principles; (3) the use of an RDF knowledge graph-based representation to store MATs datasets, thereby enabling uniform querying and analysis of enriched movement data. We qualitatively evaluate the methodology in two complementary example scenarios, where we show both the potential in generating interesting and useful semantically enriched mobility datasets, and the expressive power in querying the resulting RDF trajectories with SPARQL. |
| first_indexed | 2024-03-12T02:24:06Z |
| format | Article |
| id | doaj.art-71a19e26867141c1b366db953f77e3d0 |
| institution | Directory Open Access Journal |
| issn | 2169-3536 |
| language | English |
| last_indexed | 2024-03-12T02:24:06Z |
| publishDate | 2023-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Access |
| spelling | doaj.art-71a19e26867141c1b366db953f77e3d02023-09-05T23:01:17ZengIEEEIEEE Access2169-35362023-01-0111908579087510.1109/ACCESS.2023.330782410227262Semantic Enrichment of Mobility Data: A Comprehensive Methodology and the MAT-BUILDER SystemFrancesco Lettich0https://orcid.org/0000-0001-6914-2961Chiara Pugliese1https://orcid.org/0000-0001-7908-0418Chiara Renso2https://orcid.org/0000-0002-1763-2966Fabio Pinelli3https://orcid.org/0000-0003-1058-6917ISTI, Consiglio Nazionale delle Ricerche, Pisa, ItalyISTI, Consiglio Nazionale delle Ricerche, Pisa, ItalyISTI, Consiglio Nazionale delle Ricerche, Pisa, ItalySySMA Unit, IMT School for Advanced Studies, Lucca, ItalyThe widespread adoption of personal location devices, the Internet of Mobile Things, and Location Based Social Networks, enables the collection of vast amounts of movement data. This data often needs to be enriched with a variety of semantic dimensions, or aspects, that provide contextual and heterogeneous information about the surrounding environment, resulting in the creation of multiple aspect trajectories (MATs). Common examples of aspects can be points of interest, user photos, transportation means, weather conditions, social media posts, and many more. However, the literature does not currently provide a consensus on how to semantically enrich mobility data with aspects, particularly in dynamic scenarios where semantic information is extracted from numerous and heterogeneous external data sources. In this work, we aim to address this issue by presenting a comprehensive methodology to facilitate end users in instantiating their semantic enrichment processes of movement data. The methodology is agnostic to semantic aspects and external semantic data sources. The vision behind our methodology rests on three pillars: (1) three design principles which we argue are necessary for designing systems capable of instantiating arbitrary semantic enrichment processes; (2) the MAT-Builder system, which embodies these principles; (3) the use of an RDF knowledge graph-based representation to store MATs datasets, thereby enabling uniform querying and analysis of enriched movement data. We qualitatively evaluate the methodology in two complementary example scenarios, where we show both the potential in generating interesting and useful semantically enriched mobility datasets, and the expressive power in querying the resulting RDF trajectories with SPARQL.https://ieeexplore.ieee.org/document/10227262/Multiple aspect trajectorysemantic enrichmenttrajectory enrichmentsemantic enrichment processingknowledge graphresource description framework |
| spellingShingle | Francesco Lettich Chiara Pugliese Chiara Renso Fabio Pinelli Semantic Enrichment of Mobility Data: A Comprehensive Methodology and the MAT-BUILDER System IEEE Access Multiple aspect trajectory semantic enrichment trajectory enrichment semantic enrichment processing knowledge graph resource description framework |
| title | Semantic Enrichment of Mobility Data: A Comprehensive Methodology and the MAT-BUILDER System |
| title_full | Semantic Enrichment of Mobility Data: A Comprehensive Methodology and the MAT-BUILDER System |
| title_fullStr | Semantic Enrichment of Mobility Data: A Comprehensive Methodology and the MAT-BUILDER System |
| title_full_unstemmed | Semantic Enrichment of Mobility Data: A Comprehensive Methodology and the MAT-BUILDER System |
| title_short | Semantic Enrichment of Mobility Data: A Comprehensive Methodology and the MAT-BUILDER System |
| title_sort | semantic enrichment of mobility data a comprehensive methodology and the mat builder system |
| topic | Multiple aspect trajectory semantic enrichment trajectory enrichment semantic enrichment processing knowledge graph resource description framework |
| url | https://ieeexplore.ieee.org/document/10227262/ |
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