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  • × theme_ss:"Information Gateway"
  1. Mensing, P.: Beispielhafter Vergleich und Analyse online verfügbarer digitaler Bilddatenbanken aus dem Bereich der Pomologie (2010) 0.01 
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    Abstract
    Im Jahr 2007 hat die GWLB gemeinsam mit der HAAB, der Universitätsbibliothek Johann Christian Senckenberg und mehreren Stiftungen die Königliche Gartenbibliothek Herrenhausen erworben. Neben den textuellen Materialien enthält die Bibliothek auch viele nicht-textuelle Materialien wie Herbarien, Zeichnungen und auch Gouachen mit Abbildungen von Obstsorten aus der ehemaligen Obstbaumplantage. Nachdem in einem ebenfalls hier abgedruckten Aufsatz technische und inhaltliche Aspekte, die bei der Planung und Durchführung von Digitalisierungsprojekten von nicht-textuellen Materialien zu beachten sind, erläutert wurden, sollen im Folgenden konkrete Beispiele unterschiedlicher Präsentationen digitaler Bildbestände besprochen werden. Das Canadian Heritage Information Network bietet als Grundlage für die Beurteilung von Bilddatenbanken eine 37 Seiten umfassende Word-Datei zu Abklärung aller möglichen Anforderungen (bspw. Inventarisierung, Ausleihe, verschiedene Suchoptionen, Urheberrecht, Langzeitarchivierung, Kostenrechnung für Druckaufträge usw.) an eine Bilddatenbank an . Diese Liste ist ursprünglich für den Museumsbereich zusammengestellt worden und darum für den Bibliotheksbereich nur teilweise übertragbar. Die folgenden Beispiele wurden daher nach eigenen Kriterien miteinander verglichen, um zu analysieren, welche Angebote bzw. Bestandteile dieser Angebote als Anregung für die Präsentation nicht-textueller Materialien wie den Gouachen der Königlichen Gartenbibliothek dienen könnten. Hierbei wurden die Punkte Erschließung, Sicherung, Digitalisierung, Metadaten und Präsentation betrachtet. Nach einer umfassenden Recherche wurden von der Fülle der unterschiedlichen Internetpräsentationen insgesamt 14 verschiedene Angebote ausgewählt. Zur Verbesserung der Übersichtlichkeit wurden die Datenbanken thematisch zusammengefasst (allgemeine Portale, pomologische und botanische Datenbanken, sowie andere Themenbereiche). Auf den folgenden Seiten werden einige der untersuchten Datenbanken kurz vorgestellt.
  2. Gardner, T.; Iannella, R.: Architecture and software solutions (2000) 0.01 
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    Date
    22. 6.2002 19:38:24
  3. Peereboom, M.: DutchESS : Dutch Electronic Subject Service - a Dutch national collaborative effort (2000) 0.01 
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    Date
    22. 6.2002 19:39:23
  4. Campbell, D.: Australian subject gateways : political and strategic issues (2000) 0.01 
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    22. 6.2002 19:41:16
  5. Kaizik, A.; Gödert, W.; Milanesi, C.: Erfahrungen und Ergebnisse aus der Evaluierung des EU-Projektes EULER im Rahmen des an der FH Köln angesiedelten Projektes EJECT (Evaluation von Subject Gateways des World Wide Web (2001) 0.01 
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    Date
    22. 6.2002 19:42:22
  6. Heery, R.: Information gateways : collaboration and content (2000) 0.01 
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    22. 6.2002 19:38:54
  7. Koch, T.: Quality-controlled subject gateways : definitions, typologies, empirical overview (2000) 0.01 
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    Date
    22. 6.2002 19:37:55
  8. Mitchell, S.; Mason, J.; Pender, L.: Enabling technologies and service designs for collaborative Internet collection building (2004) 0.01 
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    Source
    Library hi tech. 22(2004) no.3, S.295-306
  9. Schaer, P.: Integration von Open-Access-Repositorien in Fachportale (2010) 0.01 
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    Source
    Wissensspeicher in digitalen Räumen: Nachhaltigkeit - Verfügbarkeit - semantische Interoperabilität. Proceedings der 11. Tagung der Deutschen Sektion der Internationalen Gesellschaft für Wissensorganisation, Konstanz, 20. bis 22. Februar 2008. Hrsg.: J. Sieglerschmidt u. H.P.Ohly
  10. Cervone, F.: Library portals and gateways (2009) 0.01 
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    Date
    27. 8.2011 14:22:27
  11. Tudhope, D.; Binding, C.; Blocks, D.; Cunliffe, D.: FACET: thesaurus retrieval with semantic term expansion (2002) 0.01 
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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 demonstration of a research prototype illustrates a matching function for compound descriptors, or multi-concept subject headings, that does not rely on 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 on a measure of semantic closeness between terms.The work is part of the EPSRC funded FACET project in collaboration with the UK National Museum of Science and Industry (NMSI) which includes the National Railway Museum. An export of NMSI's Collections Database is used as the dataset for the research. The J. Paul Getty Trust's Art and Architecture Thesaurus (AAT) is the main thesaurus in the project. The AAT is a widely used thesaurus (over 120,000 terms). Descriptors are organised in 7 facets representing separate conceptual classes of terms.The FACET application is a multi tiered architecture accessing a SQL Server database, with an OLE DB connection. The thesauri are stored as relational tables in the Server's database. However, a key component of the system is a parallel representation of the underlying semantic network as an in-memory structure of thesaurus concepts (corresponding to preferred terms). The structure models the hierarchical and associative interrelationships of thesaurus concepts via weighted poly-hierarchical links. Its primary purpose is real-time semantic expansion of query terms, achieved by a spreading activation semantic closeness algorithm. Queries with associated results are stored persistently using XML format data. A Visual Basic interface combines a thesaurus browser and an initial term search facility that takes into account equivalence relationships. Terms are dragged to a direct manipulation Query Builder which maintains the facet structure.
  12. Place, E.: Internationale Zusammenarbeit bei Internet Subject Gateways (1999) 0.01 
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    Date
    22. 6.2002 19:35:09
  13. Fischer, T.; Neuroth, H.: SSG-FI - special subject gateways to high quality Internet resources for scientific users (2000) 0.01 
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    Date
    22. 6.2002 19:40:42
  14. Neuroth, H.; Lepschy, P.: ¬Das EU-Projekt Renardus (2001) 0.01 
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    Date
    22. 6.2002 19:32:15
  15. Meiert, M.: Elektronische Publikationen an Hochschulen : Modellierung des elektronischen Publikationsprozesses am Beispiel der Universität Hildesheim (2006) 0.01 
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    1. 9.2006 13:22:15
  16. Neuroth, H.; Pianos, T.: VASCODA: a German scientific portal for cross-searching distributed digital resource collections (2003) 0.01 
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    Source
    Research and advanced technology for digital libraries : 7th European Conference, proceedings / ECDL 2003, Trondheim, Norway, August 17-22, 2003
  17. Chung, W.; Chen, H.: Browsing the underdeveloped Web : an experiment on the Arabic Medical Web Directory (2009) 0.01 
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    Date
    22. 3.2009 17:57:50
  18. Heery, R.; Carpenter, L.; Day, M.: Renardus project developments and the wider digital library context (2001) 0.01 
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    Abstract
    The Renardus project has brought together gateways that are 'large-scale national initiatives'. Within the European context this immediately introduces a diversity of organisations, as responsibility for national gateway initiatives is located differently, for example, in national libraries, national agencies with responsibility for educational technology infrastructure, and within universities or consortia of universities. Within the project, gateways are in some cases represented directly by their own personnel, in some cases by other departments or research centres, but not always by the people responsible for providing the gateway service. For example, the UK Resource Discovery Network (RDN) is represented in the project by UKOLN (formerly part of the Resource Discovery Network Centre) and the Institute of Learning and Research Technology (ILRT), University of Bristol -- an RDN 'hub' service provider -- who are primarily responsible for dissemination. Since the start of the project there have been changes within the organisational structures providing gateways and within the service ambitions of gateways themselves. Such lack of stability is inherent within the Internet service environment, and this presents challenges to Renardus activity that has to be planned for a three-year period. For example, within the gateway's funding environment there is now an exploration of 'subject portals' offering more extended services than gateways. There is also potential commercial interest for including gateways as a value-added component to existing commercial services, and new offerings from possible competitors such as Google's Web Directory and country based services. This short update on the Renardus project intends to inform the reader of progress within the project and to give some wider context to its main themes by locating the project within the broader arena of digital library activity. There are twelve partners in the project from Denmark, Finland, France, Germany, the Netherlands and Sweden, as well as the UK. In particular we will focus on the specific activity in which UKOLN is involved: the architectural design, the specification of functional requirements, reaching consensus on a collaborative business model, etc. We will also consider issues of metadata management where all partners have interests. We will highlight implementation issues that connect to areas of debate elsewhere. In particular we see connections with activity related to establishing architectural models for digital library services, connections to the services that may emerge from metadata sharing using the Open Archives Initiative metadata sharing protocol, and links with work elsewhere on navigation of digital information spaces by means of controlled vocabularies.
  19. Arms, W.Y.; Blanchi, C.; Overly, E.A.: ¬An architecture for information in digital libraries (1997) 0.01 
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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.
  20. Borgman, C.L.: Multi-media, multi-cultural, and multi-lingual digital libraries : or how do we exchange data In 400 languages? (1997) 0.01 
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    Abstract
    The Internet would not be very useful if communication were limited to textual exchanges between speakers of English located in the United States. Rather, its value lies in its ability to enable people from multiple nations, speaking multiple languages, to employ multiple media in interacting with each other. While computer networks broke through national boundaries long ago, they remain much more effective for textual communication than for exchanges of sound, images, or mixed media -- and more effective for communication in English than for exchanges in most other languages, much less interactions involving multiple languages. Supporting searching and display in multiple languages is an increasingly important issue for all digital libraries accessible on the Internet. Even if a digital library contains materials in only one language, the content needs to be searchable and displayable on computers in countries speaking other languages. We need to exchange data between digital libraries, whether in a single language or in multiple languages. Data exchanges may be large batch updates or interactive hyperlinks. In any of these cases, character sets must be represented in a consistent manner if exchanges are to succeed. Issues of interoperability, portability, and data exchange related to multi-lingual character sets have received surprisingly little attention in the digital library community or in discussions of standards for information infrastructure, except in Europe. The landmark collection of papers on Standards Policy for Information Infrastructure, for example, contains no discussion of multi-lingual issues except for a passing reference to the Unicode standard. The goal of this short essay is to draw attention to the multi-lingual issues involved in designing digital libraries accessible on the Internet. Many of the multi-lingual design issues parallel those of multi-media digital libraries, a topic more familiar to most readers of D-Lib Magazine. This essay draws examples from multi-media DLs to illustrate some of the urgent design challenges in creating a globally distributed network serving people who speak many languages other than English. First we introduce some general issues of medium, culture, and language, then discuss the design challenges in the transition from local to global systems, lastly addressing technical matters. The technical issues involve the choice of character sets to represent languages, similar to the choices made in representing images or sound. However, the scale of the language problem is far greater. Standards for multi-media representation are being adopted fairly rapidly, in parallel with the availability of multi-media content in electronic form. By contrast, we have hundreds (and sometimes thousands) of years worth of textual materials in hundreds of languages, created long before data encoding standards existed. Textual content from past and present is being encoded in language and application-specific representations that are difficult to exchange without losing data -- if they exchange at all. We illustrate the multi-language DL challenge with examples drawn from the research library community, which typically handles collections of materials in 400 or so languages. These are problems faced not only by developers of digital libraries, but by those who develop and manage any communication technology that crosses national or linguistic boundaries.

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