Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 22 for “"domain ontology"”.
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A medical ultrasound reporting system based on domain ontology
… a medical ultrasound reporting system that uses domain ontology as its knowledge base to support the generation of standardised reports as well as Rhetorical Structure Theory (RST) to transform free text reports to the preferred structured and standardised format. The domain ontology will …
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Ontology alignment in the presence of a domain ontology : finding protein homology
… large ontologies has brought forth the need for ontology management strategies. Ontology alignment and merging techniques are standard operations for ontology management. Accurate ontology alignment methods are typically semi-automatic, meaning they require periodic user input. This becomes …
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From text mining to knowledge mining: An integrated framework of concept extraction and categorization for domain ontology
Organizations are struggling with the challenges coming from the regulatory, social and economic environment which are complex and changing continuously. They cause increase demand for the management of organizational knowledge, like how to provide employees, the necessary job-specific knowledge in …
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Ontology Aware Software Service Agents: Meeting Ordinary User Needs on the Semantic Web
… ontologies as foundational knowledge. A task ontology consists of a domain ontology and a process ontology. The domain ontology encodes domain information such as possible constraints and instances in terms of object sets, relationship sets among these object sets, and operations over values …
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A SEMANTIC APPROACH FOR CONSTRUCTING KNOWLEDGE GRAPHS EXTRACTED FROM TABLES
… of the table content in terms of a domain ontology and the generation of the KG are still open research problems because of the heterogeneity of the table contents, the eventual presence of mistakes, and the lack of standardization. The goal of this thesis is the development of an …
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Concept graphs: Applications to biomedical text categorization and concept extraction
… and semantic relationships of common domain concepts. Consequently, automating learning tasks could be reinforced with those knowledge bases through constructing human-like representations of knowledge. This allows developing algorithms that simulate the human reasoning tasks of …
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Organizational knowledge extraction from business process models = Szervezeti tudás kinyerése üzleti folyamatmodellekből
… the links between the process models and the domain ontology. The novelty of the solution is based on the connection between process model and corporate knowledge, where the process structure will be extended with the annotation for knowledge structure. The resulting process and domain …
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Intelligent personalized approaches for semantic search and query expansion
… as well as the semantic knowledge of a domain ontology, aiming to improve the quality of the search results. However, it is not easy to acquire personalized web search results, hence one of the problems that is encountered in this approach is how to get a precise representation of the …
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Defining Safe Training Datasets for Machine Learning Models Using Ontologies
… popularity in recent years in a wide variety of domains, including safety-critical domains. While ML models have shown high accuracy in their predictions, they are still considered black boxes, meaning that developers and users do not know how the models make their decisions. While this is simply …
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Improving clinical decisions using correspondences within and across electronic health records
… of clinical concepts encoded in an existing domain ontology. We use these correspondences to enable the transfer of machine learning models across different or evolving EHR systems. Second, we introduce a method to learn correspondences between structured health record data and topic …
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Managing the consistency of distributed documents
… glossaries, use cases, organisation charts, and domain ontology models; service providers and retailers produce catalogues, customer data, purchase orders, invoices and web pages. What these examples have in common is that the content of documents is often semantically related: source code should …
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Investigating ontology based query expansion using a probabilistic retrieval model
… hierarchies within a given ontology. Specifically, we examine the use of ontology based query expansion for defining query context. Query expansion can be done in many ways and in this work we consider the use of relevance feedback and pseudo-relevance feedback for query …
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Método bi-fase para la conceptualización de ontologías basado en meta-modelos
… en los últimos años. Sin embargo, salvo METHONTOLOGY, ninguna de ellas propone y describe una etapa de conceptualización. Esta situación en el plano metodológico se proyecta en el plano tecnológico. Los entornos de desarrollo de ontologías están pensados para codificar las ontologías …
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Information extraction from text for deep domain knowledge graph population. Extracting pre-clinical outcomes in the domain of spinal cord injury
… we focus on automatically populating a deep domain knowledge graph with information from pre-clinical studies that describe experimental results in the area of spinal cord injury. An important challenge is that a single study contains multiple outcomes described by a total of up to 7,816 …
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An empirical investigation of expertise matching within academia
… both keyword form and concept form based on the domain ontology; this combined profile integrates the advantages of both keyword search and concept search. A prototype system, which aims to help PhD applicants locate their potential supervisors, has been designed and implemented to test the …
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Utilising structured information for the representation and elicitation of user preferences
… assist with the personalisation process. In some domains it may be difficult for people to express their preferences in terms of the domain attributes. Searching for items in these terms may either require some knowledge about the domain or require some technical familiarity with the items in the …
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Discrete event calculus using Semantic Web technologies
… aims to provide an accurate and reusable DEC ontology using the languages defined in Semantic Web Standards. To this end, an ontology describing the DEC entities and axioms is defined in OWL and SWRL; this represents the core elements of the DEC formalism, namely its set of logical types and …
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An ontological framework for assisting people with disabilities in organisations
… Organisation, Buildings, and OntoCarerLink-Ontology. The Framework is also compatible with the WHO ICF classifications. The OntoCarer-Link-Ontology is an ontology of properties used to link the assisted actions with the assister actions, and so create an assistive social network for an …
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Semantic Web Based Relational Database Access With Conflict Resolution
… approach is built on top of Ontop framework for Ontology Based Data Access. It extracts both Ontop mappings and an equivalent OWL ontology from an existing database schema. The end users can then access the underlying data source through SPARQL queries. The proposed approach takes into …
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Integrating Ontology-Based Information Extraction Systems and Spatial Modeling for Land Use Analysis and Simulation
… set of concepts, relevant to a specific domain of knowledge, ignoring irrelevant information. IE converts unstructured text into structured data and extracts the required information. IE is to some extent domain-specific. In IE, the information to be extracted must be specified a priori. …
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