Semantic Grid

... 693 to develop custom Grid portal web applications. ... The File Browser Port-let also supports the ability to create new directories, delete files and directories, edit text files online, upload files to remote file systems and download files to a user's local host, so long as the files ...

Abstract. Grid computing allows sharing of services and resources accross institutions. However, current Grid security mechanisms for authentication and authorization are too rigid and they lack the ability to determine how “trustworthy” the result obtained from a specific provider is likely to be. This paper describes the different facets associated to Trust and identifies the need for Trust Management approaches in the context of Virtual Organizations lifecycle and resource access control in the Grid.

Grid computing allows sharing of services and resources accross institutions. However, current Grid security mechanisms for authentication and authorization are too rigid and they lack the ability to determine how ``trustworthy'' the result obtained from a specific provider is likely to be. This paper describes the different facets associated to Trust and identifies the need for Trust Management approaches in the context of Virtual Organizations lifecycle and resource access control in the Grid.

E-learning can be loosely defined as a wide set of applications and processes, which uses available electronic media (and tools) to deliver vocational education and training. With its increasing recognition as an ubiquitous mode of instruction and interaction in the academic as well as corporate world, the need for a scaleable and realistic model is becoming important. In this paper, we introduce SELF; a semantic grid-based e-learning framework. SELF aims to identify the key-enablers in a practical grid-based e-learning environment and to minimize technological reworking by proposing a well-defined interaction plan among currently available tools and technologies. We define a dichotomy with e-learning specific application layers on top and semantic grid-based support layers underneath. We also map the latest open and freeware technologies with various components in SELF.

This paper describes our efforts to provide a collaborative problem solving architecture driven by semantic-based worko w orchestration and con- straint problem solving. These technologies are based on shared ontologies that allows two systems of very different natures to communicate, perform specialised tasks and achieve common goals. We give an account of our approach for the worko w assisted collaboration

E-learning can be loosely defined as a wide set of applications and processes, which uses available electronic media (and tools) to deliver vocational education and training. With its increasing recognition as an ubiquitous mode of instruction and interaction in the academic as well as corporate world, the need for a scaleable and realistic model is becoming important. In this paper, we introduce SELF; a semantic grid-based e-learning framework. SELF aims to identify the key-enablers in a practical grid-based e-learning environment and to minimize technological reworking by proposing a well-defined interaction plan among currently available tools and technologies. We define a dichotomy with e-learning specific application layers on top and semantic grid-based support layers underneath. We also map the latest open and freeware technologies with various components in SELF.

Jeremy G. Frey 1 , David De Roure 2 , monica mc schraefel 2 , ... Hugo Mills 2 , Hongchen Fu 1 , Sam Peppe 1 , ... Gareth Hughes2, Graham Smith2, Terry R. Payne2 ... 1 School of Chemistry, University of Southampton, UK { jgfrey, h.fu, s.peppe}@soton.ac.uk 2 School of Electronics and Computer Science, University of Southampton, UK {dder, mc, hrm, gvh, gms, trp}@ecs.soton.ac.uk ... In this paper we discuss the information system requirements of an e-Science scenario, drawn from chemistry research, and describe our approach to a ...

The EU project InteliGrid (2004-2007) combined and extended the state-of-the-art research and technologies in the areas of semantic interoperability, virtual organisations and grid technology to provide diverse engineering industries with a collaboration platform for flexible, secure, robust, interoperable, pay-per-demand access to information, communication and processing infrastructure. This paper describes the system architecture and the technical aspects of the developed platform as well as the key components it ...

... Grid Registry is the central component of the grid, it performs three main operations: Registering / Publishing a Service, Discovering a Grid Service, and Subscribing for a Grid Service [4]. Security is an issue in Grid, where trust can deal with certain ... [6] Abdul Moiz Ishaq, Saman ...

This paper reports on a study aiming to develop a metadata model for e-learning coordination based on semantic web languages. A survey of e-learning modes are done initially in order to identify content such as phases, activities, data schema, rules and relations, etc. relevant for a coordination model. In this respect, the study looks into the mechanism of e-learning environment and the question of how e-learning can be classified in terms of activity coordination. A metadata model for coordination of e-learning is being sought which may be expressed using semantic web languages such as OWL + RDF. This is part of a project involving studies on several fronts regarding the application of semantic web initiative into e-learning; i.e. design and development of markup and annotation tools, relevant ontologies, intelligent agents, etc. The objective is eventually to build capability to semantically integrate and selectively retrieve e-content in implementing e-learning environments.

SUMMARY Life sciences research is based on individuals, often with diverse skills, assembled into research groups. These groups use their specialist expertise to address scientiflc problems. The in silico experiments undertaken by these research groups can be represented as work∞ows involving the co-ordinated use of analysis programs and information repositories that may be globally distributed. With regards to Grid computing,

Addressing the long term preservation issues associated with scientific data is a complex challenge compounded by: the scale and multidisciplinary nature of the problem the wide range of formats and data types involved and the often proprietary and transitory nature ofthe hardware ...

This paper introduces a version of KAoS Semantic Policy and Domain Services that has been developed to support Web Services-based (i.e., OGSA-compliant) Grid Computing Architectures. While initially oriented to the dynamic and complex requirements of software agent applications, KAoS services are now being extended to work equally well with both agent and non-agent clients on a variety of more general

A semantically driven Virtual Organisation (VO) model for predicting important events for coral reefs is presented-the Semantic Reef. The model is an application of a Semantic Grid that encapsulates services and resources to produce a complex higher-level knowledge base in order to predict coral bleaching on the Great Barrier Reef. The goal is to enable the synergistic interplay between different e-Research tools to produce a model that can evaluate complex hypotheses. Built on a Grid infrastructure and invoking an ontology ...

The goal of Long-term preservation (LTP) is to make the sustainability of archives lasting for a foreseeable enough time. The efforts are primarily hampered by challenges such as missing of standards, formal methodology and workflow model during archiving. This research is aiming to explore the LTP of various kinds of documents independently from the evolution of time and changes in techniques within digital environments. Basic requirements come from integration of storage management and information management, securing preservation of data, metadata, indexes, etc. This paper presents the evolutionary development of the LTP process for Governmental Archive Management and Knowledge Management. Effective search to resources and efficient storage/access on data, recovery drawing on co-location back-up, dynamic regulation on authentication and security management are tasks followed. Then, a pilot Semantic Data Grid and service matching mechanisms are described, where the ontologism play...