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A Semantic Based Policy Management Framework for Cloud Computing Environments
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Takabi, Hassan – ProQuest LLC, 2013
Cloud computing paradigm has gained tremendous momentum and generated intensive interest. Although security issues are delaying its fast adoption, cloud computing is an unstoppable force and we need to provide security mechanisms to ensure its secure adoption. In this dissertation, we mainly focus on issues related to policy management and access…
Descriptors: Computer System Design, Semantics, Information Security, Information Policy
An Approach to Semantic Interoperability for Improved Capability Exchanges in Federations of Systems
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Moschoglou, Georgios – ProQuest LLC, 2013
This study seeks an affirmative answer to the question whether a knowledge-based approach to system of systems interoperation using semantic web standards and technologies can provide the centralized control of the capability for exchanging data and services lacking in a federation of systems. Given the need to collect and share real-time…
Descriptors: Semantics, Information Technology, Standards, Information Systems
An Effective Approach to Biomedical Information Extraction with Limited Training Data
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Jonnalagadda, Siddhartha – ProQuest LLC, 2011
In the current millennium, extensive use of computers and the internet caused an exponential increase in information. Few research areas are as important as information extraction, which primarily involves extracting concepts and the relations between them from free text. Limitations in the size of training data, lack of lexicons and lack of…
Descriptors: Sentences, Semantics, Biomedicine, Information Retrieval
Resolving Quasi-Synonym Relationships in Automatic Thesaurus Construction Using Fuzzy Rough Sets and an Inverse Term Frequency Similarity Function
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Davault, Julius M., III. – ProQuest LLC, 2009
One of the problems associated with automatic thesaurus construction is with determining the semantic relationship between word pairs. Quasi-synonyms provide a type of equivalence relationship: words are similar only for purposes of information retrieval. Determining such relationships in a thesaurus is hard to achieve automatically. The term…
Descriptors: Semantics, Information Retrieval, Computational Linguistics, Reference Materials
Enriched Video Semantic Metadata: Authorization, Integration, and Presentation.
Mu, Xiangming; Marchionini, Gary – Proceedings of the ASIST Annual Meeting, 2003
Presents an enriched video metadata framework including video authorization using the Video Annotation and Summarization Tool (VAST)-a video metadata authorization system that integrates both semantic and visual metadata-- metadata integration, and user level applications. Results demonstrated that the enriched metadata were seamlessly…
Descriptors: Computer System Design, Information Systems, Information Technology, Metadata
Semantic Overlays in Educational Content Networks--The hylOs Approach
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Engelhardt, Michael; Hildebrand, Arne; Lange, Dagmar; Schmidt, Thomas C. – Campus-Wide Information Systems, 2006
Purpose: The paper aims to introduce an educational content management system, Hypermedia Learning Objects System (hylOs), which is fully compliant to the IEEE LOM eLearning object metadata standard. Enabled through an advanced authoring toolset, hylOs allows the definition of instructional overlays of a given eLearning object mesh.…
Descriptors: Semantics, Hypermedia, Metadata, Standards