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Full-Text Articles in Computer Sciences
Federated Critical Infrastructure Simulators: Towards Ontologies For Support Of Collaboration, Katarina Grolinger, Miriam Am Capretz, Adam Shypanski, Gagandeep S. Gill
Federated Critical Infrastructure Simulators: Towards Ontologies For Support Of Collaboration, Katarina Grolinger, Miriam Am Capretz, Adam Shypanski, Gagandeep S. Gill
Katarina Grolinger
Our society relies greatly on a variety of critical infrastructures (CI), such as power system networks, water distribution, oil and natural gas systems, telecommunication networks and others. Interdependency between those systems is high and may result in cascading failures spanning different infrastructures. Behavior of each CI can be observed and analyzed through the use of domain simulators, but this does not account for their interdependency. To explore CI interdependencies, domain simulators need to be integrated in a federation where they can collaborate. This paper explores three different simulators: the EPANET water distribution simulator, the PSCAD power system simulator and the …
From Glossaries To Ontologies: Disaster Management Domain, Katarina Grolinger, Kevin P. Brown, Miriam A.M. Capretz
From Glossaries To Ontologies: Disaster Management Domain, Katarina Grolinger, Kevin P. Brown, Miriam A.M. Capretz
Katarina Grolinger
Our society’s reliance on a variety of critical infrastructures (CI) presents significant challenges for disaster preparedness, response and recovery. Experts from different domains including police, paramedics, firefighters and various other CI teams are involved in the fast paced response to a disaster, increasing the risk of miscommunication. To ensure clear communication, as well as to facilitate CI software interoperability, a common disaster ontology is needed. We propose using the knowledge stored in domain glossaries, vocabularies and dictionaries for the creation of a lightweight disaster management domain ontology. Glossaries, vocabularies and dictionaries are semi structured representations of domain knowledge, where significant …
Ontology–Based Representation Of Simulation Models, Katarina Grolinger, Miriam A.M. Capretz, José R. Marti, Krishan D. Srivastava
Ontology–Based Representation Of Simulation Models, Katarina Grolinger, Miriam A.M. Capretz, José R. Marti, Krishan D. Srivastava
Katarina Grolinger
Ontologies have been used in a variety of domains for multiple purposes such as establishing common terminology, organizing domain knowledge and describing domain in a machine-readable form. Moreover, ontologies are the foundation of the Semantic Web and often semantic integration is achieved using ontology. Even though simulation demonstrates a number of similar characteristics to Semantic Web or semantic integration, including heterogeneity in the simulation domain, representation and semantics, the application of ontology in the simulation domain is still in its infancy. This paper proposes an ontology-based representation of simulation models. The goal of this research is to facilitate comparison among …
Ontology-Guided Extraction Of Structured Information From Unstructured Text: Identifying And Capturing Complex Relationships, Sushain Pandit
Ontology-Guided Extraction Of Structured Information From Unstructured Text: Identifying And Capturing Complex Relationships, Sushain Pandit
Sushain Pandit
Many applications call for methods to enable automatic extraction of structured information from unstructured natural language text. Due to the inherent challenges of natural language processing, most of the existing methods for information extraction from text tend to be domain specific. This thesis explores a modular ontology-based approach to information extraction that decouples domain-specific knowledge from the rules used for information extraction. Specifically, the thesis describes: 1. A framework for ontology-driven extraction of a subset of nested complex relationships (e.g., Joe reports that Jim is a reliable employee) from free text. The extracted relationships are semantically represented in the form …
The Representation Of Context In Computer Software, Hisham Assal, Kym Pohl, Jens G. Pohl
The Representation Of Context In Computer Software, Hisham Assal, Kym Pohl, Jens G. Pohl
Hisham Assal
Computers do not have the equivalent of a human cognitive system and therefore store data simply as the numbers and words that are entered into the computer. For a computer to interpret data it requires an information structure that provides at least some level of context. This can be accomplished utilizing an ontology of objects with characteristics, semantic behavior, and a rich set of relationships to create a virtual version of real world situations and provide the context within which intelligent logic (e.g., agents) can automatically operate. This paper discusses the process of developing ontologies that serve to provide context …
Describing Radio Hardware And Software Using Owl For Over-The-Air Software Download, Todor Cooklev, Stanchev, David Clendenen
Describing Radio Hardware And Software Using Owl For Over-The-Air Software Download, Todor Cooklev, Stanchev, David Clendenen
Todor Cooklev
Recently, several researchers have discovered the need for radios to use description techniques. Previous research describes information such as the current frequency band, waveform, and so on. However, this information is presented at a level that is not sufficient to determine software/hardware compatibility for over-the-air software download. For example, a device should not attempt to download a wideband waveform if its radio front-end is only narrowband, or if its baseband hardware cannot provide the required MIPS for the new waveform. Over-the-air software download is one of the most interesting features of software-defined radios. The compatibility between software and hardware prior …
Ontologies Of The Future And Interfaces For All: Archaeological Databases For The 21st Century, Angela Labrador
Ontologies Of The Future And Interfaces For All: Archaeological Databases For The 21st Century, Angela Labrador
Angela M Labrador
Archaeological database management systems serve the basic and important functions of ordering, archiving, and disseminating archaeological data. The increased availability of computers and data storage over the past two decades has enabled the exponential growth of archaeological databases and data models. Despite their importance and ubiquity, archaeological database systems are rarely the subject of theoretical analysis within the discipline due to their ‘‘black box’’ nature and the perceived objectivity of computerized systems. Inspired by H. Martin Wobst’s meditations on materiality and disciplinary ethics, in this paper I explore how archaeological database systems structure archaeological interpretation and disciplinary practice. In turn, …
Data, Information, And Knowledge In The Context Of Sils, Michael A. Zang, Jens G. Pohl
Data, Information, And Knowledge In The Context Of Sils, Michael A. Zang, Jens G. Pohl
Jens G. Pohl
Data, information, and knowledge are becoming increasingly common terms in the literature of the software industry. This terminology originated some time ago in the disciplines of cognitive science and artificial intelligence to reference three closely related but distinct concepts. Traditionally, mainstream software engineering has lumped all three concepts together as data and has only recently begun to distinguish between them. Unfortunately, the popular desire to distinguish between data, information, and knowledge within the mainstream has blurred the individual meanings of the words to the point where there is no longer a clear-cut distinction between them for most people. This problem …
Knowledge Management Enterprise Services (Kmes): Concepts And Implementation Principles, Jens G. Pohl
Knowledge Management Enterprise Services (Kmes): Concepts And Implementation Principles, Jens G. Pohl
Jens G. Pohl
The purpose of this paper is to present concepts and implementation principles related to the design and development of reusable software services that are capable of assisting users at the operational level. Knowledge Management Enterprise Services (KMES) are an implementation of the service-oriented architecture paradigm, with a focus on the exchange of data within the meaningful context of a particular application (i.e., knowledge) domain. This requires a KMES service to incorporate a high level representation of this knowledge domain in the form of an ontology that is shared among all collaborating services within the application environment and at the same …
Reflexive Autopoietic Systems Theory, Kent D. Palmer
Reflexive Autopoietic Systems Theory, Kent D. Palmer
Kent D. Palmer
Exploring the Meta-systems of Emergent Worlds