With the increasing presence of biomedical data sources on the Internet more and more research effort is put into finding possible ways for integrating and searching such often heterogeneous sources. To be able to use multiple ontologies it is necessary to align them, i. buy an essay natural disaster in hindi Third party copyright material has been removed from the ethesis. The number of downloads is the sum of all downloads of full texts.
Semantically-enabled applications need high quality ontologies and one key aspect is their completeness. Based on this abduction framework, we present complexity results for the existence, relevance and necessity decision problems for the generalized TBox abduction problem with and without some specific preference relations for ontologies that can be represented using a member of the EL family of description logics. buying an essay knowledge is power pdf We have also conducted experiments to assess the impact of user errors in the completion process.
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Thesis digitised by ProQuest. Debugging consists of the phases of detection and repairing. Ontologies are a key technology in this effort. As users' time and effort are a limited resource we address the issue of limiting and facilitating user interaction in the completion process.
We have also conducted experiments to assess the impact of user errors in the completion process. Download activity - last 12 months. Understanding of the nature and detailed composition of ethnic groups remains key to a vast swathe of social science and human natural science.
Downloads by country - last 12 months. In this paper we focus on the Anatomy track in the years and the Anatomy part of the Interactive track in The contributions of the thesis are threefold. Semantically-enabled applications need high quality ontologies and one key aspect is their completeness.
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We have conducted a broad study of state-of-the-art ontology alignment systems and identified different issues related to the process. Further, we present algorithms for finding solutions, a system as well as experiments. college essay help online common application Furthermore, a validation of the proposed name-based classification using different datasets is offered, as well as examples of applications in profiling neighbourhoods by ethnicity, in particular the measurement of residential segregation in London. User validation is one of the challenges facing the ontology alignment community, as there are limits to the quality of automated alignment algorithms. About 50 systems have participated in the Anatomy track.
Incorrect and incomplete ontologies and alignments directly influence the quality of the results of such applications, as wrong results can be returned and correct results can be missed. About 50 systems have participated in the Anatomy track. essay writing websites vocabulary The third contribution of the thesis addresses this by introducing ontology completion and ontology alignment into an existing ontology development methodology. Ontology design patterns ODPs and related ontology development methodologies were designed as ways of sharing and reusing best practices in ontology engineering. Images identifying individuals have been redacted or partially redacted to protect their identity.
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Images identifying individuals have been redacted or partially redacted to protect their identity. The most popular matching techniques are string-based strategies and structure-based techniques. We have also conducted experiments to assess the impact of user errors in the completion process.
Second, high quality completion requires user involvement. Enter your search terms. This can be a problem for semantically-enabled applications.