2,682 research outputs found

    Enabling Adaptive Grid Scheduling and Resource Management

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    Wider adoption of the Grid concept has led to an increasing amount of federated computational, storage and visualisation resources being available to scientists and researchers. Distributed and heterogeneous nature of these resources renders most of the legacy cluster monitoring and management approaches inappropriate, and poses new challenges in workflow scheduling on such systems. Effective resource utilisation monitoring and highly granular yet adaptive measurements are prerequisites for a more efficient Grid scheduler. We present a suite of measurement applications able to monitor per-process resource utilisation, and a customisable tool for emulating observed utilisation models. We also outline our future work on a predictive and probabilistic Grid scheduler. The research is undertaken as part of UK e-Science EPSRC sponsored project SO-GRM (Self-Organising Grid Resource Management) in cooperation with BT

    Managing a portal of digital web resources by content syndication

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    As users become more accustomed to continuous Internet access, they will have less patience with the offering of disparate resources. A new generation of portals is being designed that aids users in navigating resource space and in processing the data they retrieved. Such portals offer added value by means of content syndication: the effort to have multiple, federated? resources co-operate in order to profit optimally from their synergy. A portal that offers these advantages, however, can only be of lasting value if it is sustainable. We sketch a way to set up and run an organisation that can manage a content syndication portal in a sustainable way.\ud \u

    Electronic health records

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    mSpace meets EPrints: a Case Study in Creating Dynamic Digital Collections

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    In this case study we look at issues involved in (a) generating dynamic digital libraries that are on a particular topic but span heterogeneous collections at distinct sites, (b) supplementing the artefacts in that collection with additional information available either from databases at the artefact's home or from the Web at large, and (c) providing an interaction paradigm that will support effective exploration of this new resource. We describe how we used two available frameworks, mSpace and EPrints to support this kind of collection building. The result of the study is a set of recommendations to improve the connectivity of remote resources both to one another and to related Web resources, and that will also reduce problems like co-referencing in order to enable the creation of new collections on demand

    Developing an open data portal for the ESA climate change initiative

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    We introduce the rationale for, and architecture of, the European Space Agency Climate Change Initiative (CCI) Open Data Portal (http://cci.esa.int/data/). The Open Data Portal hosts a set of richly diverse datasets – 13 “Essential Climate Variables” – from the CCI programme in a consistent and harmonised form and to provides a single point of access for the (>100 TB) data for broad dissemination to an international user community. These data have been produced by a range of different institutions and vary across both scientific and spatio-temporal characteristics. This heterogeneity of the data together with the range of services to be supported presented significant technical challenges. An iterative development methodology was key to tackling these challenges: the system developed exploits a workflow which takes data that conforms to the CCI data specification, ingests it into a managed archive and uses both manual and automatically generated metadata to support data discovery, browse, and delivery services. It utilises both Earth System Grid Federation (ESGF) data nodes and the Open Geospatial Consortium Catalogue Service for the Web (OGC-CSW) interface, serving data into both the ESGF and the Global Earth Observation System of Systems (GEOSS). A key part of the system is a new vocabulary server, populated with CCI specific terms and relationships which integrates OGC-CSW and ESGF search services together, developed as part of a dialogue between domain scientists and linked data specialists. These services have enabled the development of a unified user interface for graphical search and visualisation – the CCI Open Data Portal Web Presence

    Bringing research and researchers to light: current and emerging challenges for discipline-based knowledge resources

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    Australian literary studies have, in the past decade, been greatly assisted by AustLit: The Australian Literature Resource (www.austlit.edu.au), a multi-institutional collaboration between researchers, librarians and software designers from ten universities and the National Library of Australia. Under the leadership of The University of Queensland, this collaboration has produced a web-based research environment that supports a wide range of projects and publications across a diverse array of fields in Australian literary and narrative cultures while also becoming a key resource for teaching and general information. AustLit has consistently worked to integrate the research output of associated projects and is currently planning to expand its position in the community with a new open access and open contribution model. A major innovation in data management and maintenance, the AustLit Research Community[1] structure supports the study of Australian literary and story-making cultures by providing a web-based environment where segments of these cultures can be explored and presented as distinct topics within a larger knowledge framework. Scholars are able to build datasets, annotate, analyse and present that data in a range of ways, and publish scholarly interpretations of their findings in the form of peer reviewed articles. The incorporation of these research-rich datasets into AustLit contributes to an overarching goal of building a comprehensive database of information about Australian writers, writing and print culture more broadly. With a recent decision to move from the current access model as a subscription service, available to relatively few users, to an open access and open contributions model incorporating content produced by a network of volunteers, AustLit is now facing a significant new challenge. The Aus-e-Lit Project[2] has delivered innovative tools and services that will enable AustLit users to engage more directly with AustLit data and to contribute to a Research Commons with collaborative annotations and richly described collections of internet resources. This paper will report on the implications that these innovations bring to current and future research practices. It will consider the successes and challenges that AustLit faces with its aim to be the definitive virtual research environment and information resource for Australian literary, print, and narrative culture, not only for scholars in the field but for students of all levels and the general public

    Bringing research and researchers to light: current and emerging challenges for a discipline-based knowledge resource

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    Australian literary studies have, in the past decade, been greatly assisted by AustLit: The Australian Literature Resource (www.austlit.edu.au), a multi-institutional collaboration between researchers, librarians and software designers from ten universities and the National Library of Australia. Under the leadership of The University of Queensland, this collaboration has produced a web-based research environment that supports a wide range of projects and publications across a diverse array of fields in Australian literary and narrative cultures while also becoming a key resource for teaching and general information. AustLit has consistently worked to integrate the research output of associated projects and is currently planning to expand its position in the community with a new open access and open contribution model. A major innovation in data management and maintenance, the AustLit Research Community[1] structure supports the study of Australian literary and story-making cultures by providing a web-based environment where segments of these cultures can be explored and presented as distinct topics within a larger knowledge framework. Scholars are able to build datasets, annotate, analyse and present that data in a range of ways, and publish scholarly interpretations of their findings in the form of peer reviewed articles. The incorporation of these research-rich datasets into AustLit contributes to an overarching goal of building a comprehensive database of information about Australian writers, writing and print culture more broadly. With a recent decision to move from the current access model as a subscription service, available to relatively few users, to an open access and open contributions model incorporating content produced by a network of volunteers, AustLit is now facing a significant new challenge. The Aus-e-Lit Project[2] has delivered innovative tools and services that will enable AustLit users to engage more directly with AustLit data and to contribute to a Research Commons with collaborative annotations and richly described collections of internet resources. This paper will report on the implications that these innovations bring to current and future research practices. It will consider the successes and challenges that AustLit faces with its aim to be the definitive virtual research environment and information resource for Australian literary, print, and narrative culture, not only for scholars in the field but for students of all levels and the general public. [1] See www.austlit.edu.au/ResearchCommunities [2] The Aus-e-Lit project is funded from 2008 - 2011 by the National Collaborative Research Infrastructure Strategy (NCRIS) Platforms for Collaboration, through the National eResearch Architecture Taskforce (NeAT), and by the University of Queensland.PARADISEC (Pacific And Regional Archive for Digital Sources in Endangered Cultures), Australian Partnership for Sustainable Repositories, Ethnographic E-Research Project and Sydney Object Repositories for Research and Teaching
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