International Conference on Knowledge Engineering and Ontology Development, 2010
Since its debut in 2001 Wikipedia has attracted the attention of many researchers in different fi... more Since its debut in 2001 Wikipedia has attracted the attention of many researchers in different fields. In recent years researchers in the area of ontology learning have realised the huge potential of Wikipedia as a source of semi-structured knowledge and several systems have used it as their main source of knowledge. However, the techniques used to extract semantic information vary greatly, as do the resulting ontologies. This paper introduces a framework to compare ontology learning systems that use Wikipedia as their main source of knowledge. Six prominent systems are compared and contrasted using the framework.
The Reference Model of Open Distributed Processing (RM-ODP) was a joint ef-fort by the internatio... more The Reference Model of Open Distributed Processing (RM-ODP) was a joint ef-fort by the international standards bodies ISO and ITU-T to develop a generic ar-chitecture for the standardisation of open distributed processing (ODP). The model describes a framework within which ...
This volume focuses on the design, implementation, deployment and evaluation of distributed syste... more This volume focuses on the design, implementation, deployment and evaluation of distributed systems platforms and architectures for future networked environments. Issues addresses in the text include: ORB architectures and engineering; event based systems; workflow environments; scalability in distributed systems platforms; availability and integrity; mobile objects; component architectures; type safety and security; web services; and application services. This book compiles the proceedings of Middleware '98, the IFIP International Conference on Distributed Systems Platforms and Open Distributed Processing. The conference was held in the Lake District, UK, in September 1998 and was sponsored by the International Federation for Information Processing (IFIP). This book represents an invaluable resource for researchers working on the state of the art in the field of distributed systems platforms and middleware.
Providing support for reversible transformations as a basis for round-trip engineering is a signi... more Providing support for reversible transformations as a basis for round-trip engineering is a significant challenge in model transformation research. While there are a number of current approaches, they require the underlying transformation to exhibit an injective behaviour when reversing changes. This however, does not serve all practical transformations well. In this paper, we present a novel approach to round-trip engineering that does not place restrictions on the nature of the underlying transformation. Based on abductive logic programming, it allows us to compute a set of legitimate source changes that equate to a given change to the target model. Encouraging results are derived from an initial prototype that supports most concepts of the Tefkat transformation language.
The Reference Model of Open Distributed Processing (RM-ODP) was a joint effort by the internation... more The Reference Model of Open Distributed Processing (RM-ODP) was a joint effort by the international standards bodies ISO and ITU-T to develop a coordinating framework for the standardisation of open distributed p~ocessing (ODP). The ~odel describes an architecture within which support of distribution, interworking, interoperability and portability can be integrated. The RM-ODP framework defines ODP concerns using five "viewpoints" (abstractions), namely enterprise, 'information, computational, engineering, and technology. This tutorial introduces the reference model, describing the viewpoints and some of the ODP functions and transparencies.
The use of general descriptive names, registered names, trademarks, etc. in this publication does... more The use of general descriptive names, registered names, trademarks, etc. in this publication does not imply, even in the absence of a specific statement, that such names are exempt from the relevant protective laws and regulations and therefore free for general use.
Abstract In this paper we propose a model of decentralized federation of traders. Each component ... more Abstract In this paper we propose a model of decentralized federation of traders. Each component trader manages its own set of federated traders. A feder- ation contract is used to document the agreement between two ...
Welcome to Middleware'98 and to one of England's most beautiful regions. In recent years ... more Welcome to Middleware'98 and to one of England's most beautiful regions. In recent years the distributed systems community has witnessed a growth in the number of conferences, leading to difficulties in tracking the literature and a consequent loss of awareness of work done by others in this important field. The aim of Middleware'98 is to synthesise many of the smaller workshops and conferences in this area, bringing together research communities which were becoming fragmented. The conference has been designed to maximise the experience for attendees. This is reflected in the choice of a resort venue (rather than a big city) to ensure a strong focus on interaction with other distributed systems researchers. The programme format incorporates a question-and-answer panel in each session, enabling significant issues to be discussed in the context of related papers and presentations. The invited speakers and tutorials are intended to not only inform the attendees, but also to stimulate discussion and debate. The key to a good conference is a strong technical programme and this can only be achieved by having a significant number of submissions and a diligent programme committee. Since the composition of the programme committee also influences the submission rate, the role of these individuals is doubly important. In assembling the programme committee, we brought together researchers well-known for their expertise, experience, and leadership in distributed systems research. Our dedicated committee was vital to the creation of a successful programme for Middleware'98, as the conference attracted over 150 technical submissions including 135 full paper submissions. Each was reviewed at least 3 times, resulting in over 500 reviews. The final acceptance ratio for Middleware technical papers was a little over 1 in 5. The programme presented here reflects the state of the art in middleware research, addressing issues such as ORB architectures, engineering of large-scale systems, and multimedia. The traditional role of middleware as a point of integration and service provision has remained intact, but there is a clear emphasis on emerging "must-have" features such as extensibility, mobility, and quality of service.
The Object Management Group (OMG) is pursuing its new Model-Driven Architecture (MDA) strategy. T... more The Object Management Group (OMG) is pursuing its new Model-Driven Architecture (MDA) strategy. The Meta-Object Facility (MOF) is an important technology to support the MDA, both as a general modelling technique but also specifically to support the definition of other modelling systems. The OMG has standardised the generation of repositories based on MOF models. Anti-Yacc is a tool that can be used to extract the contents of MOF-based repository in textual form. The Anti-Yacc tool takes as input the specification of grammar rules, lexical rules, and MOF-extraction rules, from which a Java program is generated to extract the contents of a MOF-based repository on demand. Anti-Yacc can be used for code generation, interfacing with legacy syntaxes, and general report writing.
The AIJ' (the "J'" is silent in speech) model provides the basis for development of distributed a... more The AIJ' (the "J'" is silent in speech) model provides the basis for development of distributed applications and distributed infrastructure within the CRC for Distributed Systems Technology. The model has been developed to overcome some of the deficiencies in the RM-ODP standard, in particular, to address the diverse requirements of participants in the CRC. This paper introduces the major concepts of the AIJ' model, and discusses both its relationship with RM-ODP and how it overcomes deficiencies identified in RM-ODP.
International Conference on Knowledge Engineering and Ontology Development, 2010
Since its debut in 2001 Wikipedia has attracted the attention of many researchers in different fi... more Since its debut in 2001 Wikipedia has attracted the attention of many researchers in different fields. In recent years researchers in the area of ontology learning have realised the huge potential of Wikipedia as a source of semi-structured knowledge and several systems have used it as their main source of knowledge. However, the techniques used to extract semantic information vary greatly, as do the resulting ontologies. This paper introduces a framework to compare ontology learning systems that use Wikipedia as their main source of knowledge. Six prominent systems are compared and contrasted using the framework.
The Reference Model of Open Distributed Processing (RM-ODP) was a joint ef-fort by the internatio... more The Reference Model of Open Distributed Processing (RM-ODP) was a joint ef-fort by the international standards bodies ISO and ITU-T to develop a generic ar-chitecture for the standardisation of open distributed processing (ODP). The model describes a framework within which ...
This volume focuses on the design, implementation, deployment and evaluation of distributed syste... more This volume focuses on the design, implementation, deployment and evaluation of distributed systems platforms and architectures for future networked environments. Issues addresses in the text include: ORB architectures and engineering; event based systems; workflow environments; scalability in distributed systems platforms; availability and integrity; mobile objects; component architectures; type safety and security; web services; and application services. This book compiles the proceedings of Middleware '98, the IFIP International Conference on Distributed Systems Platforms and Open Distributed Processing. The conference was held in the Lake District, UK, in September 1998 and was sponsored by the International Federation for Information Processing (IFIP). This book represents an invaluable resource for researchers working on the state of the art in the field of distributed systems platforms and middleware.
Providing support for reversible transformations as a basis for round-trip engineering is a signi... more Providing support for reversible transformations as a basis for round-trip engineering is a significant challenge in model transformation research. While there are a number of current approaches, they require the underlying transformation to exhibit an injective behaviour when reversing changes. This however, does not serve all practical transformations well. In this paper, we present a novel approach to round-trip engineering that does not place restrictions on the nature of the underlying transformation. Based on abductive logic programming, it allows us to compute a set of legitimate source changes that equate to a given change to the target model. Encouraging results are derived from an initial prototype that supports most concepts of the Tefkat transformation language.
The Reference Model of Open Distributed Processing (RM-ODP) was a joint effort by the internation... more The Reference Model of Open Distributed Processing (RM-ODP) was a joint effort by the international standards bodies ISO and ITU-T to develop a coordinating framework for the standardisation of open distributed p~ocessing (ODP). The ~odel describes an architecture within which support of distribution, interworking, interoperability and portability can be integrated. The RM-ODP framework defines ODP concerns using five "viewpoints" (abstractions), namely enterprise, 'information, computational, engineering, and technology. This tutorial introduces the reference model, describing the viewpoints and some of the ODP functions and transparencies.
The use of general descriptive names, registered names, trademarks, etc. in this publication does... more The use of general descriptive names, registered names, trademarks, etc. in this publication does not imply, even in the absence of a specific statement, that such names are exempt from the relevant protective laws and regulations and therefore free for general use.
Abstract In this paper we propose a model of decentralized federation of traders. Each component ... more Abstract In this paper we propose a model of decentralized federation of traders. Each component trader manages its own set of federated traders. A feder- ation contract is used to document the agreement between two ...
Welcome to Middleware'98 and to one of England's most beautiful regions. In recent years ... more Welcome to Middleware'98 and to one of England's most beautiful regions. In recent years the distributed systems community has witnessed a growth in the number of conferences, leading to difficulties in tracking the literature and a consequent loss of awareness of work done by others in this important field. The aim of Middleware'98 is to synthesise many of the smaller workshops and conferences in this area, bringing together research communities which were becoming fragmented. The conference has been designed to maximise the experience for attendees. This is reflected in the choice of a resort venue (rather than a big city) to ensure a strong focus on interaction with other distributed systems researchers. The programme format incorporates a question-and-answer panel in each session, enabling significant issues to be discussed in the context of related papers and presentations. The invited speakers and tutorials are intended to not only inform the attendees, but also to stimulate discussion and debate. The key to a good conference is a strong technical programme and this can only be achieved by having a significant number of submissions and a diligent programme committee. Since the composition of the programme committee also influences the submission rate, the role of these individuals is doubly important. In assembling the programme committee, we brought together researchers well-known for their expertise, experience, and leadership in distributed systems research. Our dedicated committee was vital to the creation of a successful programme for Middleware'98, as the conference attracted over 150 technical submissions including 135 full paper submissions. Each was reviewed at least 3 times, resulting in over 500 reviews. The final acceptance ratio for Middleware technical papers was a little over 1 in 5. The programme presented here reflects the state of the art in middleware research, addressing issues such as ORB architectures, engineering of large-scale systems, and multimedia. The traditional role of middleware as a point of integration and service provision has remained intact, but there is a clear emphasis on emerging "must-have" features such as extensibility, mobility, and quality of service.
The Object Management Group (OMG) is pursuing its new Model-Driven Architecture (MDA) strategy. T... more The Object Management Group (OMG) is pursuing its new Model-Driven Architecture (MDA) strategy. The Meta-Object Facility (MOF) is an important technology to support the MDA, both as a general modelling technique but also specifically to support the definition of other modelling systems. The OMG has standardised the generation of repositories based on MOF models. Anti-Yacc is a tool that can be used to extract the contents of MOF-based repository in textual form. The Anti-Yacc tool takes as input the specification of grammar rules, lexical rules, and MOF-extraction rules, from which a Java program is generated to extract the contents of a MOF-based repository on demand. Anti-Yacc can be used for code generation, interfacing with legacy syntaxes, and general report writing.
The AIJ' (the "J'" is silent in speech) model provides the basis for development of distributed a... more The AIJ' (the "J'" is silent in speech) model provides the basis for development of distributed applications and distributed infrastructure within the CRC for Distributed Systems Technology. The model has been developed to overcome some of the deficiencies in the RM-ODP standard, in particular, to address the diverse requirements of participants in the CRC. This paper introduces the major concepts of the AIJ' model, and discusses both its relationship with RM-ODP and how it overcomes deficiencies identified in RM-ODP.
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