Search for dissertations about: "Ontology knowledge"

Showing result 1 - 5 of 76 swedish dissertations containing the words Ontology knowledge.

2. 1. Completion of Ontologies and Ontology Networks

   Author : Zlatan Dragisic; Patrick Lambrix; Nahid Shahmehri; Marco Kuhlmann; Fang Wei-Kleiner; Erhard Rahm; Linköpings universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; knowledge representation; ontology; ontology engineering; ontology debugging; ontology completion; ontology matching; description logics;

   Abstract : The World Wide Web contains large amounts of data, and in most cases this data has no explicit structure. The lack of structure makes it difficult for automated agents to understand and use such data. A step towards a more structured World Wide Web is the Semantic Web, which aims at introducing semantics to data on the World Wide Web. READ MORE

4. 2. Fostering User Involvement in Ontology Alignment and Alignment Evaluation

   Author : Valentina Ivanova; Patrick Lambrix; Nahid Shahmehri; Fabien Gandon; Linköpings universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; Knowledge representation; ontology; ontology engineering; ontology debugging; ontology matching; ontology matching evaluation; user interfaces; human-computer interaction; large and high-resolution displays;

   Abstract : The abundance of data at our disposal empowers data-driven applications and decision making. The knowledge captured in the data, however, has not been utilized to full potential, as it is only accessible to human interpretation and data are distributed in heterogeneous repositories. READ MORE

5. 3. Integration of Ontology Alignment and Ontology Debugging for Taxonomy Networks

   Author : Valentina Ivanova; Patrick Lambrix; Nahid Shahmehri; Eero Hyvönen; Linköpings universitet; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; ontology; ontology engineering; ontology alignment; ontology debugging;

   Abstract : Semantically-enabled applications, such as ontology-based search and data integration, take into account the semantics of the input data in their algorithms. Such applications often use ontologies, which model the application domains in question, as well as alignments, which provide information about the relationships between the terms in the different ontologies. READ MORE

6. 4. Context Knowledge Base for Ontology Integration

   Author : Dan Wu; Anne Håkansson; Carl-Gustaf Jansson; Jelena Zdravkovic; KTH; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; ontology integration; semantic and pragmatic integration; context; knowledge base; rules; SRA - ICT; SRA - Informations- och kommunikationsteknik;

   Abstract : Ontology integration is a process of matching and merging two ontologies for reasons such as for generating a new ontology, thus creating digital services and products. Current techniques for ontology integration, used for information and knowledge integration, are not powerful enough to handle the semantic and pragmatic heterogeneities. READ MORE

7. 5. Cross-language Ontology Learning : Incorporating and Exploiting Cross-language Data in the Ontology Learning Process

   Author : Hans Hjelm; Martin Volk; Joakim Nivre; Philipp Cimiano; Stockholms universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; Ontologies; Ontology learning; Distributional semantics; Knowledge acquisition; Text mining; Computational linguistics; Datorlingvistik; datorlingvistik; Computational Linguistics;

   Abstract : An ontology is a knowledge-representation structure, where words, terms or concepts are defined by their mutual hierarchical relations. Ontologies are becoming ever more prevalent in the world of natural language processing, where we currently see a tendency towards using semantics for solving a variety of tasks, particularly tasks related to information access. READ MORE