Matches in ScholarlyData for { ?s ?p ?o. }
- 11 creator yuzhong-qu.
- 11 type InProceedings.
- 11 label "How Matchable Are Four Thousand Ontologies on the Semantic Web".
- 11 sameAs 11.
- 11 abstract "A growing number of ontologies have been published on the Semantic Web by various parties, to be shared for describing things. Because of the decentralized nature of the Web, there often exist different but similar ontologies from overlapped domains, or even within the same domain. In this paper, we collect more than four thousand ontologies and perform a large-scale pairwise matching based on an ontology matching tool. We create about 3.1 million mappings between the concepts (classes and properties) from these ontologies, and build a complex concept mapping graph (CMG) with concepts as nodes and mappings as edges. We analyze the macroscopic properties of the CMG as well as the induced ontology mapping graph (OMG), which characterize the global ontology matchability in many aspects, including the degree distribution, connectivity and reachability. We further establish a pay-level-domain mapping graph (PMG) to understand the common interests between different ontology publishers. Besides, we publish these generated mappings online based on the R2R mapping language. These mappings and our observations are believed to be useful for the Linked Data community in ontology creation, integration and maintenance.".
- 11 hasAuthorList authorList.
- 11 isPartOf proceedings.
- 11 keyword "complex network".
- 11 keyword "mapping analysis".
- 11 keyword "ontology matching".
- 11 title "How Matchable Are Four Thousand Ontologies on the Semantic Web".
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- item-1 hasContent wei-hu.
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- item-2 hasContent jianfeng-chen.
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- item-3 hasContent hang-zhang.
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- item-4 hasContent yuzhong-qu.
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- 2 creator jens-wissmann.
- 2 creator stephan-grimm.
- 2 type InProceedings.
- 2 label "Elimination of Redundancy in Ontologies".
- 2 sameAs 2.
- 2 abstract "Ontologies may contain redundancy in terms of axioms that logically follow from other axioms and that could be removed for the sake of consolidation and conciseness without changing the overall meaning. In this paper, we investigate methods for removing such redundancy from ontologies. We define notions around redundancy and discuss typical cases of redundancy and their relation to ontology engineering and evolution. We provide methods to compute irredundant ontologies both indirectly by calculating justifications, and directly by utilising a hitting set tree algorithm and module extraction techniques for optimization. Moreover, we report on experimental results on removing redundancy from existing ontologies available on the Web.".
- 2 hasAuthorList authorList.
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- 2 keyword "OWL DL".
- 2 keyword "hitting set tree".
- 2 keyword "justifications".
- 2 keyword "ontolgy evolution".
- 2 title "Elimination of Redundancy in Ontologies".
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- item-1 hasContent stephan-grimm.
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- item-2 hasContent jens-wissmann.
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- 21 creator kouji-kozaki.
- 21 creator riichiro-mizoguchi.
- 21 creator takeru-hirota.
- 21 type InProceedings.
- 21 label "Understanding an Ontology through Divergent Exploration".
- 21 sameAs 21.
- 21 abstract "It is important that the ontology captures the essential conceptual structure of the target world as generally as possible. However, such ontologies are sometimes regarded as weak and shallow by domain experts because they often want to understand the target world from the domain-specific viewpoints in which they are interested. Therefore, it is highly desirable to have not only knowledge structuring from the general perspective but also from the domain-specific and multi-perspective so that concepts are structured for appropriate understanding from the multiple experts. On the basis of this observation, the authors propose a novel approach, called divergent exploration of an ontology, to bridge the gap between ontologies and domain experts. Based on the approach, we developed an ontology exploration tool which allows experts to explore an ontology and visualizes the result in a user-friendly form, i.e. a conceptual map, depending on the viewpoints that they specify. We evaluated the system through its application to an environmental domain and an experimental use by domain experts. As a result, we confirmed that the tool supports experts to obtain meaningful knowledge for them through the divergent exploration and it contributes to integrated understanding of the ontology and its target domain.".
- 21 hasAuthorList authorList.
- 21 isPartOf proceedings.
- 21 keyword "conceptual map".
- 21 keyword "divergent exploration".
- 21 keyword "ontology".
- 21 keyword "view point".
- 21 title "Understanding an Ontology through Divergent Exploration".
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- item-1 hasContent kouji-kozaki.
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- item-2 hasContent takeru-hirota.
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- item-3 hasContent riichiro-mizoguchi.
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- 23 creator c-maria-keet.
- 23 type InProceedings.
- 23 label "The use of foundational ontologies in ontology development: an empirical assessment".
- 23 sameAs 23.
- 23 abstract "There is an assumption that ontology developers will use a top-down approach by using a foundational ontology, because it purportedly speeds up ontology development and improves quality and interoperability of the domain ontology. Informal assessment of these assumption reveals ambiguous results that are not only open to different interpretations but also such that foundational ontology use is not included in several methodologies. Therefore, we investigated these assumptions in a controlled experiment. After a brief lecture about the contents of DOLCE, BFO, and part-whole relations, one-third chose to commence domain ontology development with an OWLized foundational ontology. Concerning new classes and class axioms, there is a trend in favour of those who commenced with a foundational ontology, but it is not statistically significant. The comprehensive results show that the `cost' incurred in spending time getting acquainted with a foundational ontology compared to starting from scratch was more than made up for in size, understandability, and interoperability already within the limited time frame of the experiment.".
- 23 hasAuthorList authorList.
- 23 isPartOf proceedings.
- 23 keyword "experimental vaildation".
- 23 keyword "foundational ontologies".
- 23 keyword "ontology reuse".
- 23 keyword "top-down ontology development".
- 23 title "The use of foundational ontologies in ontology development: an empirical assessment".
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