6,432 research outputs found
Report of the Stanford Linked Data Workshop
The Stanford University Libraries and Academic Information Resources (SULAIR) with the Council on Library and Information Resources (CLIR) conducted at week-long workshop on the prospects for a large scale, multi-national, multi-institutional prototype of a Linked Data environment for discovery of and navigation among the rapidly, chaotically expanding array of academic information resources. As preparation for the workshop, CLIR sponsored a survey by Jerry Persons, Chief Information Architect emeritus of SULAIR that was published originally for workshop participants as background to the workshop and is now publicly available. The original intention of the workshop was to devise a plan for such a prototype. However, such was the diversity of knowledge, experience, and views of the potential of Linked Data approaches that the workshop participants turned to two more fundamental goals: building common understanding and enthusiasm on the one hand and identifying opportunities and challenges to be confronted in the preparation of the intended prototype and its operation on the other. In pursuit of those objectives, the workshop participants produced:1. a value statement addressing the question of why a Linked Data approach is worth prototyping;2. a manifesto for Linked Libraries (and Museums and Archives and …);3. an outline of the phases in a life cycle of Linked Data approaches;4. a prioritized list of known issues in generating, harvesting & using Linked Data;5. a workflow with notes for converting library bibliographic records and other academic metadata to URIs;6. examples of potential “killer apps” using Linked Data: and7. a list of next steps and potential projects.This report includes a summary of the workshop agenda, a chart showing the use of Linked Data in cultural heritage venues, and short biographies and statements from each of the participants
Trusty URIs: Verifiable, Immutable, and Permanent Digital Artifacts for Linked Data
To make digital resources on the web verifiable, immutable, and permanent, we
propose a technique to include cryptographic hash values in URIs. We call them
trusty URIs and we show how they can be used for approaches like
nanopublications to make not only specific resources but their entire reference
trees verifiable. Digital artifacts can be identified not only on the byte
level but on more abstract levels such as RDF graphs, which means that
resources keep their hash values even when presented in a different format. Our
approach sticks to the core principles of the web, namely openness and
decentralized architecture, is fully compatible with existing standards and
protocols, and can therefore be used right away. Evaluation of our reference
implementations shows that these desired properties are indeed accomplished by
our approach, and that it remains practical even for very large files.Comment: Small error corrected in the text (table data was correct) on page
13: "All average values are below 0.8s (0.03s for batch mode). Using Java in
batch mode even requires only 1ms per file.
LORE: A Compound Object Authoring and Publishing Tool for Literary Scholars based on the FRBR
4th International Conference on Open RepositoriesThis presentation was part of the session : Conference PresentationsDate: 2009-06-04 10:30 AM – 12:00 PMThis paper presents LORE (Literature Object Re-use and Exchange), a light-weight tool designed to enable scholars and teachers of literature to author, edit and publish OAI-ORE-compliant compound information objects that encapsulate related digital resources and bibliographic records. LORE provides a graphical user interface for creating, labelling and visualizing typed relationships between individual objects using terms from a bibliographic ontology based on the IFLA FRBR. After creating a compound object, users can attach metadata and publish it to a Fedora repository (as an RDF graph) where it can be searched, retrieved, edited and re-used by others. LORE has been developed in the context of the Australian Literature Resource project (AustLit) and hence focuses on compound objects for teaching and research within the Australian literature studies community.NCRIS National eResearch Architecture Taskforce (NeAT
GeomRDF: A Geodata Converter with a Fine-Grained Structured Representation of Geometry in the Web
In recent years, with the advent of the web of data, a growing number of
national mapping agencies tend to publish their geospatial data as Linked Data.
However, differences between traditional GIS data models and Linked Data model
can make the publication process more complicated. Besides, it may require, to
be done, the setting of several parameters and some expertise in the semantic
web technologies. In addition, the use of standards like GeoSPARQL (or ad hoc
predicates) is mandatory to perform spatial queries on published geospatial
data. In this paper, we present GeomRDF, a tool that helps users to convert
spatial data from traditional GIS formats to RDF model easily. It generates
geometries represented as GeoSPARQL WKT literal but also as structured
geometries that can be exploited by using only the RDF query language, SPARQL.
GeomRDF was implemented as a module in the RDF publication platform Datalift. A
validation of GeomRDF has been realized against the French administrative units
dataset (provided by IGN France).Comment: 12 pages, 2 figures, the 1st International Workshop on Geospatial
Linked Data (GeoLD 2014) - SEMANTiCS 201
Organisational challenges of the semantic web in digital libraries: A Norwegian case study
This is the post-print version of the Article. The official published version can be accessed from the link below - Copyright @ 2009 Emerald Group Publishing LimitedPurpose – The purpose of this paper is to examine from a socio-technical point of view the impact of semantic web technology on the strategic, organisational and technological levels. The semantic web initiative holds great promise for the future for digital libraries. There is, however, a considerable gap in semantic web research between the contributions in the technological field and research in the organisational field. Design/methodology/approach – A comprehensive case study of the National Library of Norway (NL) is conducted, building on two major sources of information: the documentation of the digitising project of the NL; and interviews with nine different stakeholders at three levels of NL's organisation during June to August 2007. Top managers are interviewed on strategy, middle managers and librarians are interviewed regarding organisational issues and ICT professionals are interviewed on technology issues. Findings – The findings indicate that the highest impact will be at the organisational level. This is mainly because inter-organisational and cross-organisational structures have to be established to address the problems of ontology engineering, and a development framework for ontology engineering in digital libraries must be examined. Originality/value – ICT professionals and library practitioners should be more mindful of organisational issues when planning and executing semantic web projects in digital libraries. In particular, practitioners should be aware that the ontology engineering process and the semantic meta-data production will affect the entire organisation. For public digital libraries this probably will also call for a more open policy towards user groups to properly manage the process of ontology engineering
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