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  • × theme_ss:"Information Gateway"
  1. Cristán, A.L.: SACO and subject gateways (2004) 0.05 
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    Abstract
    This presentation attempts to fit the subject contribution mechanism used in the Program for Cooperative Cataloging's SACO Program into the context of subject gateways. The discussion points to several subject gateways and concludes that there is no similarity between the two. Subject gateways are a mechanism for facilitating searching, while the SACO Program is a cooperative venture that provides a "gateway" for the development of LCSH (Library of Congress Subject Heading list) into an international authority file for subject headings.
  2. Arms, W.Y.; Blanchi, C.; Overly, E.A.: ¬An architecture for information in digital libraries (1997) 0.03 
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    Abstract
    Flexible organization of information is one of the key design challenges in any digital library. For the past year, we have been working with members of the National Digital Library Project (NDLP) at the Library of Congress to build an experimental system to organize and store library collections. This is a report on the work. In particular, we describe how a few technical building blocks are used to organize the material in collections, such as the NDLP's, and how these methods fit into a general distributed computing framework. The technical building blocks are part of a framework that evolved as part of the Computer Science Technical Reports Project (CSTR). This framework is described in the paper, "A Framework for Distributed Digital Object Services", by Robert Kahn and Robert Wilensky (1995). The main building blocks are: "digital objects", which are used to manage digital material in a networked environment; "handles", which identify digital objects and other network resources; and "repositories", in which digital objects are stored. These concepts are amplified in "Key Concepts in the Architecture of the Digital Library", by William Y. Arms (1995). In summer 1995, after earlier experimental development, work began on the implementation of a full digital library system based on this framework. In addition to Kahn/Wilensky and Arms, several working papers further elaborate on the design concepts. A paper by Carl Lagoze and David Ely, "Implementation Issues in an Open Architectural Framework for Digital Object Services", delves into some of the repository concepts. The initial repository implementation was based on a paper by Carl Lagoze, Robert McGrath, Ed Overly and Nancy Yeager, "A Design for Inter-Operable Secure Object Stores (ISOS)". Work on the handle system, which began in 1992, is described in a series of papers that can be found on the Handle Home Page. The National Digital Library Program (NDLP) at the Library of Congress is a large scale project to convert historic collections to digital form and make them widely available over the Internet. The program is described in two articles by Caroline R. Arms, "Historical Collections for the National Digital Library". The NDLP itself draws on experience gained through the earlier American Memory Program. Based on this work, we have built a pilot system that demonstrates how digital objects can be used to organize complex materials, such as those found in the NDLP. The pilot was demonstrated to members of the library in July 1996. The pilot system includes the handle system for identifying digital objects, a pilot repository to store them, and two user interfaces: one designed for librarians to manage digital objects in the repository, the other for library patrons to access the materials stored in the repository. Materials from the NDLP's Coolidge Consumerism compilation have been deposited into the pilot repository. They include a variety of photographs and texts, converted to digital form. The pilot demonstrates the use of handles for identifying such material, the use of meta-objects for managing sets of digital objects, and the choice of metadata. We are now implementing an enhanced prototype system for completion in early 1997.
  3. Shiri, A.: Digital library research : current developments and trends (2003) 0.03 
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    Abstract
    This column gives an overview of current trends in digital library research under the following headings: digital library architecture, systems, tools and technologies; digital content and collections; metadata; interoperability; standards; knowledge organisation systems; users and usability; legal, organisational, economic, and social issues in digital libraries.
    Source
    Library review. 52(2003) no.5, S.198-202
  4. Cervone, F.: Library portals and gateways (2009) 0.03 
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    Abstract
    Libraries have had web presences since the introduction of the World Wide Web. Providing access to information provided by the library has been attempted through various means throughout the years but no method has been as popular or pervasive as the uses of library gateways and portals. Development of gateways and portals in libraries has been affected by many factors many of which have been outside the direct control of libraries or librarians. Both the history of library practice in this area and these external factors have had a substantial impact on the state of library portal and gateway development today.
    Date
    27. 8.2011 14:22:27
    Source
    Encyclopedia of library and information sciences. 3rd ed. Ed.: M.J. Bates
  5. Doerr, M.; Gradmann, S.; Hennicke, S.; Isaac, A.; Meghini, C.; Van de Sompel, H.: ¬The Europeana Data Model (EDM) (2010) 0.02 
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    Abstract
    The Europeana Data Model (EDM) is a new approach towards structuring and representing data delivered to Europeana by the various contributing cultural heritage institutions. The model aims at greater expressivity and flexibility in comparison to the current Europeana Semantic Elements (ESE), which it is destined to replace. The design principles underlying the EDM are based on the core principles and best practices of the Semantic Web and Linked Data efforts to which Europeana wants to contribute. The model itself builds upon established standards like RDF(S), OAI-ORE, SKOS, and Dublin Core. It acts as a common top-level ontology which retains original data models and information perspectives while at the same time enabling interoperability. The paper elaborates on the aforementioned aspects and the design principles which drove the development of the EDM.
    Content
    Vortrag im Rahmen der Session 93. Cataloguing der WORLD LIBRARY AND INFORMATION CONGRESS: 76TH IFLA GENERAL CONFERENCE AND ASSEMBLY, 10-15 August 2010, Gothenburg, Sweden - 149. Information Technology, Cataloguing, Classification and Indexing with Knowledge Management
  6. Goodchild, M.F.: ¬The Alexandria Digital Library Project : review, assessment, and prospects (2004) 0.02 
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    Abstract
    The Alexandria Digital Library (ADL) was established in the late 1990s as a response to several perceived problems of traditional map libraries, notably access and organization. By 1999 it had evolved into an operational digital library, offering a well-defined set of services to a broad user community, based on an extensive collection of georeferenced information objects. The vision of ADL continues to evolve, as technology makes new services possible, as its users become more sophisticated and demanding, and as the broader field of geographic information science (GIScience) identifies new avenues for research and application.
    Object
    Alexandria Digital Library Project
  7. MacLeod, R.: Promoting a subject gateway : a case study from EEVL (Edinburgh Engineering Virtual Library) (2000) 0.02 
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    Abstract
    Describes the development of EEVL and outlines the services offered. The potential market for EEVL is discussed, and a case study of promotional activities is presented
    Date
    22. 6.2002 19:40:22
  8. Neuroth, H.; Pianos, T.: VASCODA: a German scientific portal for cross-searching distributed digital resource collections (2003) 0.02 
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    Abstract
    The German information science community - with the support of the two main funding agencies in Germany - will develop a scientific portal, vascoda, for cross-searching distributed metadata collections. In platitudinous words, one of the services of vascoda is going to be a ldquoGooglerdquo-like search for the academic community, an easy to use, yet sophisticated search-engine to supply information on high-quality resources from different media and technical environments. Reaching this objective requires considerable standardisation activity amongst the main players to harmonise the already existing services (e.g. regarding metadata, protocols, etc.). The co-operation amongst the participants including both of the funding agencies is creating a unique team-work situation in Germany thus strengthening the information science community.
    Source
    Research and advanced technology for digital libraries : 7th European Conference, proceedings / ECDL 2003, Trondheim, Norway, August 17-22, 2003
  9. Stempfhuber, M.; Zapilko, B.: Modelling text-fact-integration in digital libraries (2009) 0.02 
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    Abstract
    Digital Libraries currently face the challenge of integrating many different types of research information (e.g. publications, primary data, expert's profiles, institutional profiles, project information etc.) according to their scientific users' needs. To date no general, integrated model for knowledge organization and retrieval in Digital Libraries exists. This causes the problem of structural and semantic heterogeneity due to the wide range of metadata standards, indexing vocabularies and indexing approaches used for different types of information. The research presented in this paper focuses on areas in which activities are being undertaken in the field of Digital Libraries in order to treat semantic interoperability problems. We present a model for the integrated retrieval of factual and textual data which combines multiple approaches to semantic interoperability und sets them into context. Embedded in the research cycle, traditional content indexing methods for publications meet the newer, but rarely used ontology-based approaches which seem to be better suited for representing complex information like the one contained in survey data. The benefits of our model are (1) easy re-use of available knowledge organisation systems and (2) reduced efforts for domain modelling with ontologies.
  10. Franco, A.: Gateways to the Internet : finding quality information on the Internet (2004) 0.02 
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    Abstract
    Librarians have long sought to select, evaluate, and organize information on the Internet. Efforts began with individual librarians sharing bookmark files of favorite sites and progressed to increasingly large, collaboratively produced general and subject/discipline-specific gateway Web sites or megasites. Megasites list major resources usually in a particular subject area or discipline. Library portals that review, evaluate, and sometimes rate and rank resources grew from some of these Web sites. Both megasites and portals serve as gateways to the Internet. Many portals have developed from relatively small static files into large, dynamically generated databases providing descriptive annotations of selected resources and are increasingly overseen as global projects with formal policies and procedures. Portals now provide increasingly complex and sophisticated browse and search capabilities with a multitude of access points, often including call numbers and subject headings. These are described and compared. Future trends such as increased collaboration among portals; automated location, selection, and cataloging of resources; integration of multiple resource types; and increased access to full-content and virtual library services are also discussed.
    Source
    Library trends. 52(2004) no.2, S.228-246
  11. Tudhope, D.; Binding, C.; Blocks, D.; Cunliffe, D.: Compound descriptors in context : a matching function for classifications and thesauri (2002) 0.02 
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    Abstract
    There are many advantages for Digital Libraries in indexing with classifications or thesauri, but some current disincentive in the lack of flexible retrieval tools that deal with compound descriptors. This paper discusses a matching function for compound descriptors, or multi-concept subject headings, that does not rely an exact matching but incorporates term expansion via thesaurus semantic relationships to produce ranked results that take account of missing and partially matching terms. The matching function is based an a measure of semantic closeness between terms, which has the potential to help with recall problems. The work reported is part of the ongoing FACET project in collaboration with the National Museum of Science and Industry and its collections database. The architecture of the prototype system and its Interface are outlined. The matching problem for compound descriptors is reviewed and the FACET implementation described. Results are discussed from scenarios using the faceted Getty Art and Architecture Thesaurus. We argue that automatic traversal of thesaurus relationships can augment the user's browsing possibilities. The techniques can be applied both to unstructured multi-concept subject headings and potentially to more syntactically structured strings. The notion of a focus term is used by the matching function to model AAT modified descriptors (noun phrases). The relevance of the approach to precoordinated indexing and matching faceted strings is discussed.
    Source
    Proceedings of the Second ACM/IEEE-CS Joint Conference on Digital Libraries : JCDL 2002 ; July 14 - 18, 2002, Portland, Oregon, USA. Ed. by Gary Marchionini
  12. Haslhofer, B.; Knezevié, P.: ¬The BRICKS digital library infrastructure (2009) 0.02 
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    Abstract
    Service-oriented architectures, and the wider acceptance of decentralized peer-to-peer architectures enable the transition from integrated, centrally controlled systems to federated and dynamic configurable systems. The benefits for the individual service providers and users are robustness of the system, independence of central authorities and flexibility in the usage of services. This chapter provides details of the European project BRICKS, which aims at enabling integrated access to distributed resources in the Cultural Heritage domain. The target audience is broad and heterogeneous and involves cultural heritage and educational institutions, the research community, industry, and the general public. The project idea is motivated by the fact that the amount of digital information and digitized content is continuously increasing but still much effort has to be expended to discover and access it. The reasons for such a situation are heterogeneous data formats, restricted access, proprietary access interfaces, etc. Typical usage scenarios are integrated queries among several knowledge resource, e.g. to discover all Italian artifacts from the Renaissance in European museums. Another example is to follow the life cycle of historic documents, whose physical copies are distributed all over Europe. A standard method for integrated access is to place all available content and metadata in a central place. Unfortunately, such a solution requires a quite powerful and costly infrastructure if the volume of data is large. Considerations of cost optimization are highly important for Cultural Heritage institutions, especially if they are funded from public money. Therefore, better usage of the existing resources, i.e. a decentralized/P2P approach promises to deliver a significantly less costly system,and does not mean sacrificing too much on the performance side.
    Object
    BRICKS digital library
  13. Mitchell, S.; Mason, J.; Pender, L.: Enabling technologies and service designs for collaborative Internet collection building (2004) 0.02 
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    Abstract
    The following describes a number of technologies and exemplary service designs that foster better Internet finding tools in libraries and more cooperative and efficient effort in Internet resource collection building. Our library and partner institutions have been involved in this work for over a decade. The open source software and projects discussed represent appropriate technologies and sustainable strategies that will help Internet portals, digital libraries, virtual libraries and library catalogs-with-portal-like-capabilities (IPDVLCs) to scale better and to anticipate and meet the needs of scholarly and educational users.
    Source
    Library hi tech. 22(2004) no.3, S.295-306
  14. Peereboom, M.: DutchESS : Dutch Electronic Subject Service - a Dutch national collaborative effort (2000) 0.02 
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    Abstract
    This article gives an overview of the design and organisation of DutchESS, a Dutch information subject gateway created as a national collaborative effort of the National Library and a number of academic libraries. The combined centralised and distributed model of DutchESS is discussed, as well as its selection policy, its metadata format, classification scheme and retrieval options. Also some options for future collaboration on an international level are explored
    Date
    22. 6.2002 19:39:23
  15. Woldering, B.: Europeana - mehrsprachiger Zugang zu Europas digitalem Kulturerbe (2008) 0.02 
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    Abstract
    The Europeana, the European digital library web-service, is being developed in the framework of the EU-funded network EDLnet. The demo version of this webservice was shown at an international conference at the German National Library in Frankfurt on 1 February 2008, the prototype will be launched in November 2008. In November 2007 the EDL Foundation was established to provide cross-domain multilingual access to Europe's cultural heritage. It will facilitate formal agreement across museums, archives, audio-visual archives and libraries on how to cooperate in the delivery and sustainability of a joint portal and will provide a legal framework for use by the EU for funding purposes and as a springboard for future governance. The European Commission is supporting the process towards the Europeana with a set of projects centering on The European Library. This webservice created by the European national libraries is seen as one of the major building blocks of the Europeana.
    Date
    22. 2.2009 19:11:35
    Source
    New pespectives on subject indexing and classification: essays in honour of Magda Heiner-Freiling. Red.: K. Knull-Schlomann, u.a
  16. Altenhöner, R.: Data for the future : the German project "Co-operative development of a long-term digital information archive" (kopal) (2006) 0.02 
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    Abstract
    Purpose - One of the unresolved problems of the global information society is ensuring the long-term accessibility of digital documents. The project kopal tackles this problem head-on: in a three-year project kopal's objective is the practical testing and implementation of a cooperatively created and operated long-term archival system for digital resources. Design/methodology/approach - The system will be implemented in accordance with international standards for long-term archiving and metadata within the Open Archival Information System (OAIS) framework. The project partners, Die Deutsche Bibliothek (DDB), Göttingen State and University Library (SUB Göttingen), IBM Deutschland GmbH and the Gesellschaft für wissenschaftliche Datenverarbeitung mbH Göttingen (GWDG), will establish a cooperatively transferable solution for cultural heritage institutions, as well as for business and industry. Findings - Within the project, the project partners DDB and SUB Göttingen are developing software for the input and access of data, which will be released under an open-source license. Research limitations/implications - Long-term preservation methods and strategies will be discussed in general in the paper. Practical implications - The project will present a stable and reusable platform for additional partners and users, especially for cultural heritage organisations. Originality/value - The solution is based on Digital Information and Archiving System (DIAS), jointly devised by IBM and the National Library of The Netherlands in The Hague, and it will be adapted to the needs of the project with several extensions. Establishing a collaborative solution for long-term preservation is a milestone in the development of systems for the long-term availability of digital objects.
    Source
    Library hi tech. 24(2006) no.4, S.574-582
  17. Digital libraries : policy, planning and practice (2004) 0.02 
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    Footnote
    Teil zwei bietet dann Fallbeispiele für Implementation und Aufbau verschiedener digitaler Bibliotheken, u.a. von städtischen, universitären digitalen Bibliotheken und von solchen, die per Netzwerk erstellt werden. Auch eine digitale Bibliothek, welche Musik beinhaltet und jene der Library of Congress werden vorgestellt. Im dritten Teil werden dann Aspekte der Zukunft digitaler Bibliotheken am Beispiel der Tilburg University Library vorgestellt. Entwicklungslinien und einige Sackgassen seit 1992 werden herausgearbeitet und die Zukunft als eine Implementation der digitalen Bibliothek in eLearning-Strategien der Trägerorganisation dargestellt. Ein Stichwortregister rundet den Band ab. Der Band, geschrieben von kompetenten, aus der Praxis kommenden Beiträgern, sollte Pflichtlektüre sein nicht nur für jene, welche Projekte im Bereich der Digitalisierung planen oder durchführen, sondern für alle, welche sich für die Weiterentwicklung des Bibliothekswesens interessieren. Insbesondere der Teil zu den einzelnen Handlungsfeldern bietet gute Zusammenfassungen von Problemstellungen, an denen sich früher oder später jede Bibliothek abmühen muss. Die Vielfalt der aufgeführten Praxisbeispiele ist ebenfalls sehr anregend. Lektüre empfohlen!"
  18. Summann, F.; Lossau, N.: Search engine technology and digital libraries : moving from theory to practice (2004) 0.02 
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    Abstract
    This article describes the journey from the conception of and vision for a modern search-engine-based search environment to its technological realisation. In doing so, it takes up the thread of an earlier article on this subject, this time from a technical viewpoint. As well as presenting the conceptual considerations of the initial stages, this article will principally elucidate the technological aspects of this journey. The starting point for the deliberations about development of an academic search engine was the experience we gained through the generally successful project "Digital Library NRW", in which from 1998 to 2000-with Bielefeld University Library in overall charge-we designed a system model for an Internet-based library portal with an improved academic search environment at its core. At the heart of this system was a metasearch with an availability function, to which we added a user interface integrating all relevant source material for study and research. The deficiencies of this approach were felt soon after the system was launched in June 2001. There were problems with the stability and performance of the database retrieval system, with the integration of full-text documents and Internet pages, and with acceptance by users, because users are increasingly performing the searches themselves using search engines rather than going to the library for help in doing searches. Since a long list of problems are also encountered using commercial search engines for academic use (in particular the retrieval of academic information and long-term availability), the idea was born for a search engine configured specifically for academic use. We also hoped that with one single access point founded on improved search engine technology, we could access the heterogeneous academic resources of subject-based bibliographic databases, catalogues, electronic newspapers, document servers and academic web pages.
  19. Gonçalves, M.A.; Moreira, B.L.; Fox, E.A.; Watson, L.T.: "What is a good digital library?" : a quality model for digital libraries (2007) 0.01 
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    Abstract
    In this article, we elaborate on the meaning of quality in digital libraries (DLs) by proposing a model that is deeply grounded in a formal framework for digital libraries: 5S (Streams, Structures, Spaces, Scenarios, and Societies). For each major DL concept in the framework we formally define a number of dimensions of quality and propose a set of numerical indicators for those quality dimensions. In particular, we consider key concepts of a minimal DL: catalog, collection, digital object, metadata specification, repository, and services. Regarding quality dimensions, we consider: accessibility, accuracy, completeness, composability, conformance, consistency, effectiveness, efficiency, extensibility, pertinence, preservability, relevance, reliability, reusability, significance, similarity, and timeliness. Regarding measurement, we consider characteristics like: response time (with regard to efficiency), cost of migration (with respect to preservability), and number of service failures (to assess reliability). For some key DL concepts, the (quality dimension, numerical indicator) pairs are illustrated through their application to a number of "real-world" digital libraries. We also discuss connections between the proposed dimensions of DL quality and an expanded version of a workshop's consensus view of the life cycle of information in digital libraries. Such connections can be used to determine when and where quality issues can be measured, assessed, and improved - as well as how possible quality problems can be prevented, detected, and eliminated.
  20. Rösch, H.: Academic libraries und cyberinfrastructure in den USA : das System wissenschaftlicher Kommunikation zu Beginn des 21. Jahrhunderts (2008) 0.01 
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    Footnote
    Spätestens im 19. Jahrhundert führte die wachsende Publikationsflut zur Erkenntnis, dass dies nicht leistbar ist; einzelne Bibliotheken gewannen nun die Funktion einer mehr oder minder anleitenden Instanz (stratifikatorisch differenziertes Bibliothekssystem), besonders in Frankreich, England und Preußen, wo die Königliche Bibliothek in Berlin mit dem Gesamtkatalog begann. An der Schwelle zum 20. Jahrhundert wandelte sich dieses System, das freilich im Verhältnis der Universitätsbibliothek zu den Institutsbibliotheken oft erst mit beträchtlicher Zeitverschiebung eingeführt wurde, zu einem funktional differenzierten Bibliothekssystem, das durch eine vernetzte und koordinierte Kooperation (zum Beispiel Leihverkehr, abgestimmte Erwerbung, Sondersammelgebietesplan) gekennzeichnet ist. Damit liefert Rösch nebenbei ein bisher von den Bibliothekshistorikern nicht beachtetes Erklärungsmodell. Dieses wendet Rösch auf das Bibliotheksystem und seine Rahmenbedingungen in den USA an, das er ausführlich, zielstrebig und besonders an aktuellen Entwicklungen interessiert analysiert (etwa die Rolle der Library of Congress, der Verbände oder des OCLC, einzelne Projekte, Organisationen und Initiativen wie Coalition for Networked Information, Educause, Digital Library Federation). Funktional differenziertes System Der Autor kommt zu dem Ergebnis, dass sich das US-amerikanische Bibliothekswesen teils aufgrund der föderalen Struktur und der Zurückhaltung der Bundesebene, teils aufgrund der gesplitteten Trägerschaft (privat - staatlich) bei in vielen Fällen außerordentlichen Etatmitteln überwiegend noch in der Phase eines stratifikatorisch differenzierten, teilweise noch eines segmentär differenzierten Systems befindet.
    Aber auch die Library of Congress, so zitiert Rösch, hat im Jahr 2000 dargelegt, dass heute keine einzelne Bibliothek mehr in der Lage ist, dass Wissenschaftssystem komplett mit der benötigten Information zu versorgen. Nur ein funktional differenziertes System kann dies leisten. Ansätze dazu sieht Rösch vor allem in Formen arbeitsteiliger Bibliothekskooperation wie Global Resources Network, JSTOR, Portico, CLOCKSS oder SPARC und bescheinigt den amerikanischen Verbänden, dass sie mit Energie und Erfolg den Wandel zum funktional differenzierten System befördern. Ausführlich beschreibt der Autor die Anforderungen, die seitens der Wissenschaft an ihre Informationslogistik gestellt werden. Hier behandelt er gründlich den »Atkins-Report« von 2003 und die nachfolgenden Studien zur Cyberinfrastructure wie den »Cultural Commonwealth Report«. Bemerkenswert ist, mit welcher Klarheit bei aller Knappheit der Autor diese Entwicklungen kennzeichnet und analytisch einordnet. Er hält folgende Merkmale dieses Umbruchs in der wissenschaftlichen Kommunikation fest: - Primat der Online-Quellen und Beschleunigung - Interdisziplinarität, Kollaboration, Internationalisierung - Mengenwachstum und Informationsüberflutung - wachsende Bedeutung informeller Kommunikationsformen und nachlassende Unterscheidbarkeit von institutionell formalisierten Kommunikationsformen (Strukturverlust der Kommunikation) - Nutzung von Datenbank- und Retrievaltechnologie - Data-Mining, Aufwertung und exponentielle Vermehrung wissenschaftlicher Primärdaten - Selbst-Archivierung und Open Access - Multimedialität. Wertvoll in diesem Zusammenhang ist, dass Rösch die Tatsache diskutiert, dass Open-Access-Publikationen bei Berufungen von Professoren teilweise einfach ignoriert werden und wie sie mittels informetrischer Ansätze und Web-2.0-Funktionalitäten in formalisierte Bewertungen eingehen können.

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