4,481 research outputs found
Digital Preservation Services : State of the Art Analysis
Research report funded by the DC-NET project.An overview of the state of the art in service provision for digital preservation and curation. Its focus is on the areas where bridging the gaps is needed between e-Infrastructures and efficient and forward-looking digital preservation services. Based on a desktop study and a rapid analysis of some 190 currently available tools and services for digital preservation, the deliverable provides a high-level view on the range of instruments currently on offer to support various functions within a preservation system.European Commission, FP7peer-reviewe
Future Scenarios for the Pampulha Region: A Geodesign Workshop
The paper describes the processes, workflow and results of a Geodesign workshop held by
the authors in Belo Horizonte, Brazil in 2015. The participants were involved in the design of sustainable
future alternatives for the urban district of Pampulha â an area characterized by complex conflicting
interests concerning both development and landscape preservation. The scenarios were created on
the basis of set objectives and priorities by six stakeholder groups, and assessed on the basis of ten
evaluation systems. During the workshop, the use of a collaborative design support system (Geodesign
Hub) facilitated the creation of design proposals informed by geographic context operatively enabling
the application of the Steinitzâ Geodesign framework. The integration of information technologies in
the planning process enabled the collaboration between the various actors involved simplifying the
interactive scenario impact simulation and decision-making through real time performance analysis
and quick negotiation cycles. Overall the Geodesign framework application with the Geodesign Hub
platform proved to be a successful novel approach enabling to address some of the major traditional
planning issues such as collaboration and negotiation in design and decision-making
Pathways: Augmenting interoperability across scholarly repositories
In the emerging eScience environment, repositories of papers, datasets,
software, etc., should be the foundation of a global and natively-digital
scholarly communications system. The current infrastructure falls far short of
this goal. Cross-repository interoperability must be augmented to support the
many workflows and value-chains involved in scholarly communication. This will
not be achieved through the promotion of single repository architecture or
content representation, but instead requires an interoperability framework to
connect the many heterogeneous systems that will exist.
We present a simple data model and service architecture that augments
repository interoperability to enable scholarly value-chains to be implemented.
We describe an experiment that demonstrates how the proposed infrastructure can
be deployed to implement the workflow involved in the creation of an overlay
journal over several different repository systems (Fedora, aDORe, DSpace and
arXiv).Comment: 18 pages. Accepted for International Journal on Digital Libraries
special issue on Digital Libraries and eScienc
Towards the 3D Web with Open Simulator
Continuing advances and reduced costs in computational power, graphics processors and network bandwidth have led to 3D immersive multi-user virtual worlds becoming increasingly accessible while offering an improved and engaging Quality of Experience. At the same time the functionality of the World Wide Web continues to expand alongside the computing infrastructure it runs on and pages can now routinely accommodate many forms of interactive multimedia components as standard features - streaming video for example. Inevitably there is an emerging expectation that the Web will expand further to incorporate immersive 3D environments. This is exciting because humans are well adapted to operating in 3D environments and it is challenging because existing software and skill sets are focused around competencies in 2D Web applications. Open Simulator (OpenSim) is a freely available open source tool-kit that empowers users to create and deploy their own 3D environments in the same way that anyone can create and deploy a Web site. Its characteristics can be seen as a set of references as to how the 3D Web could be instantiated. This paper describes experiments carried out with OpenSim to better understand network and system issues, and presents experience in using OpenSim to develop and deliver applications for education and cultural heritage. Evaluation is based upon observations of these applications in use and measurements of systems both in the lab and in the wild.Postprin
Single-Board-Computer Clusters for Cloudlet Computing in Internet of Things
The number of connected sensors and devices is expected to increase to billions in the near
future. However, centralised cloud-computing data centres present various challenges to meet the
requirements inherent to Internet of Things (IoT) workloads, such as low latency, high throughput
and bandwidth constraints. Edge computing is becoming the standard computing paradigm for
latency-sensitive real-time IoT workloads, since it addresses the aforementioned limitations related
to centralised cloud-computing models. Such a paradigm relies on bringing computation close to
the source of data, which presents serious operational challenges for large-scale cloud-computing
providers. In this work, we present an architecture composed of low-cost Single-Board-Computer
clusters near to data sources, and centralised cloud-computing data centres. The proposed
cost-efficient model may be employed as an alternative to fog computing to meet real-time IoT
workload requirements while keeping scalability. We include an extensive empirical analysis to
assess the suitability of single-board-computer clusters as cost-effective edge-computing micro data
centres. Additionally, we compare the proposed architecture with traditional cloudlet and cloud
architectures, and evaluate them through extensive simulation. We finally show that acquisition costs
can be drastically reduced while keeping performance levels in data-intensive IoT use cases.Ministerio de EconomĂa y Competitividad TIN2017-82113-C2-1-RMinisterio de EconomĂa y Competitividad RTI2018-098062-A-I00European Unionâs Horizon 2020 No. 754489Science Foundation Ireland grant 13/RC/209
Landscape perception as a basis for landscape strategies. Developments in Portugal
The perception of landscape and
its transformation underpins the
process of socio-ecological awareness
that is essential to a healthy
relationship between Humans and
Nature. One of the great challenges
to contemporary and future society
is the vital need to increase
knowledge and awareness of the
development model that has led
us to the global ecological crisis
that we face today. We know that
resources may become scarce if
we continue to consume them at
the current rate, especially if the
rise in atmospheric temperature exceeds
certain limits. The landscape
reflects this economic model and
the decisions that are taken on the
territory. Different expressions may
be used depending on the scale and
intensity of the transformation that
has occurred as the landscape is a
resource that is essential not only to
the development of economic activities
but also to the qualification
of the territory and the well-being
of the population (Cassatella and
Peano, 2011). In Portugal, the result of two critical
trends can be observed in the
landscape - the depopulation of
rural areas with the consequent
concentration of population in urban
settlements influenced by the coastline, and the inevitable simplification
of the agricultural and
forest cultural mosaics.info:eu-repo/semantics/publishedVersio
Building information modeling â A game changer for interoperability and a chance for digital preservation of architectural data?
Digital data associated with the architectural design-andconstruction
process is an essential resource alongside -and even
past- the lifecycle of the construction object it describes. Despite
this, digital architectural data remains to be largely neglected in
digital preservation research â and vice versa, digital preservation
is so far neglected in the design-and-construction process. In the
last 5 years, Building Information Modeling (BIM) has seen a
growing adoption in the architecture and construction domains,
marking a large step towards much needed interoperability. The
open standard IFC (Industry Foundation Classes) is one way in
which data is exchanged in BIM processes. This paper presents a
first digital preservation based look at BIM processes,
highlighting the history and adoption of the methods as well as
the open file format standard IFC (Industry Foundation Classes)
as one way to store and preserve BIM data
BlogForever: D3.1 Preservation Strategy Report
This report describes preservation planning approaches and strategies recommended by the BlogForever project as a core component of a weblog repository design. More specifically, we start by discussing why we would want to preserve weblogs in the first place and what it is exactly that we are trying to preserve. We further present a review of past and present work and highlight why current practices in web archiving do not address the needs of weblog preservation adequately. We make three distinctive contributions in this volume: a) we propose transferable practical workflows for applying a combination of established metadata and repository standards in developing a weblog repository, b) we provide an automated approach to identifying significant properties of weblog content that uses the notion of communities and how this affects previous strategies, c) we propose a sustainability plan that draws upon community knowledge through innovative repository design
Landscape architecture between politics and science : an integrative perspective on landscape planning and design in the network society
This thesis examines the typical nature of design thinking, which is compared and contrasted with scientific and political thinking. A theretical framework is formulated and applied to landscape planning and design. During the 20th century the established operational orientation in landscape architecture was accompanied by an emerging strategic design approach, referred to as 'research by design'. Two cases of large scale landscape planning and design in the netherlands are given in this publication: the restructuring of sandy soil areas programme and the Stork Plan for Rhine-Meuse floodplain in the central belt of the Netherland
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