Search (38 results, page 1 of 2)

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Abstract

Die seit ca. 1996 rasche Entwicklung des Internet bzw. des World Wide Web (WWW) hat die Praxis der Veröffentlichung, Verbreitung und Nutzung wissenschaftlicher Informationen grundlegend verändert. Um diese Informationen suchbar und retrievalfähig zu gestalten, ist in den letzten Jahren international viel diskutiert worden. Ein vielversprechender Ansatz, diesen neuen Herausforderungen zu begegnen, liegt in der Entwicklung von Metadatenprofilen. Da durch das Internet verschiedene Datenbestände, die von unterschiedlichen Bereichen wie Museen, Bibliotheken, Archiven etc. vorgehalten werden, unter einer Oberfläche durchsucht werden können, können Metadaten auch in diesem Bereich dazu beitragen, ein einheitliches Konzept zur Beschreibung und zum Retrieval von Online-Ressourcen zu entwickeln. Um die verteilt liegenden Dokumente unter einer Oberfläche für eine qualitativ hochwertige Recherche ("Cross-Search`) anbieten zu können, ist die Verständigung auf ein Core-Set an Metadaten und daran anschließend verschiedene Mappingprozesse ("Cross-walk`) von den lokalen Metadatenformaten zu dem Format des Core-Set an Metadaten notwendig. Ziel des Artikels' ist es, die einzelnen Schritte, die für die Entwicklung eines Metadatenprofils für die gemeinsame Suche über verteilte Metadatensammlungen notwendig sind, aufzuzeigen.

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Abstract

The success of the World Wide Web Shows that we can access, search, and retrieve information from globally distributed databases. lf a database, such as a library catalog, has some sort of Web-based front end, we can type its URL into a Web browser and use its HTML-based forms to search for items in that database. Depending an how well the query conforms to the database content, how the search engine interprets the query, and how the server formats the results into HTML, we might actually find something usable. While the first two issues depend an ourselves and the server, an the Web the latter falls to the mercy of HTML, which we all know as a great destroyer of information because it codes for display but not for content description. When looking at an HTML-formatted display, we must depend an our own interpretation to recognize such entities as author names, titles, and subject identifiers. The Web browser can do nothing but display the information. lf we want some other view of the result, such as sorting the records by date (provided it offers such an option to begin with), the server must do it. This makes poor use of the computing power we have at the desktop (or even laptop), which, unless it involves retrieving more records, could easily do the result Set manipulation that we currently send back to the server. Despite having personal computers wich immense computational power, as far as information retrieval goes, we still essentially use them as dumb terminals.

Date

22. 9.1997 19:16:05

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Date

22. 6.2002 19:42:22

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Abstract

From 4 to 6 June 2003 the 2nd European Library Seminar / 3rd Gabriel Workshop was held at the Biblioteca Nacional in Lisbon, Portugal. 62 librarians and webmasters from 20 countries participated in the workshop, mainly Gabriel contacts but also quite a number of librarians from Portugal. Since its foundation in 1995 Gabriel, the world wide web service of the European national libraries, has established itself as the official network service of the Conference of European National Librarians (CENL) and has undergone a continuous development. The Gabriel website has been redesigned and restructured, and it was relaunched in summer 2002. At present, 41 libraries from 39 European countries are represented in Gabriel. Gabriel offers access to varied information sources and numerous online-catalogues and Services of the European national libraries. Gabriel is the only trans-European library service.

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Abstract

Information subject gateways provide targeted discovery services for their users, giving access to Web resources selected according to quality and subject coverage criteria. Information gateways recognise that they must collaborate on a wide range of issues relating to content to ensure continued success. This report is informed by discussion of content activities at the 1999 Imesh Workshop. The author considers the implications for subject based gateways of co-operation regarding coverage policy, creation of metadata, and provision of searching and browsing across services. Other possibilities for co-operation include working more closely with information providers, and diclosure of information in joint metadata registries

Date

22. 6.2002 19:38:54

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Abstract

Federated search and distributed information retrieval systems provide a single user interface for searching multiple full-text search engines. They have been an active area of research for more than a decade, but in spite of their success as a research topic, they are still rare in operational environments. This article discusses a prototype federated search system developed for the U.S. government's FedStats Web portal, and the issues addressed in adapting research solutions to this operational environment. A series of experiments explore how well prior research results, parameter settings, and heuristics apply in the FedStats environment. The article concludes with a set of lessons learned from this technology transfer effort, including observations about search engine quality in the real world.

Date

22. 7.2006 16:02:07

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Content

Enthält die Beiträge: Devadason, F.J., N. Intaraksa u. P. Patamawongjariya u.a.: Faceted indexing application for organizing and accessing internet resources; Nicholson, D., S. Wake: HILT: subject retrieval in a distributed environment; Olson, T.: Integrating LCSH and MeSH in information systems; Kuhr, P.S.: Putting the world back together: mapping multiple vocabularies into a single thesaurus; Freyre, E., M. Naudi: MACS : subject access across languages and networks; McIlwaine, I.C.: The UDC and the World Wide Web; Garrison, W.A.: The Colorado Digitization Project: subject access issues; Vizine-Goetz, D., R. Thompson: Towards DDC-classified displays of Netfirst search results: subject access issues; Godby, C.J., J. Stuler: The Library of Congress Classification as a knowledge base for automatic subject categorization: subject access issues; O'Neill, E.T., E. Childress u. R. Dean u.a.: FAST: faceted application of subject terminology; Bean, C.A., R. Green: Improving subject retrieval with frame representation; Zeng, M.L., Y. Chen: Features of an integrated thesaurus management and search system for the networked environment; Hudon, M.: Subject access to Web resources in education; Qin, J., J. Chen: A multi-layered, multi-dimensional representation of digital educational resources; Riesthuis, G.J.A.: Information languages and multilingual subject access; Geisselmann, F.: Access methods in a database of e-journals; Beghtol, C.: The Iter Bibliography: International standard subject access to medieval and renaissance materials (400-1700); Slavic, A.: General library classification in learning material metadata: the application in IMS/LOM and CDMES metadata schemas; Cordeiro, M.I.: From library authority control to network authoritative metadata sources; Koch, T., H. Neuroth u. M. Day: Renardus: Cross-browsing European subject gateways via a common classification system (DDC); Olson, H.A., D.B. Ward: Mundane standards, everyday technologies, equitable access; Burke, M.A.: Personal Construct Theory as a research tool in Library and Information Science: case study: development of a user-driven classification of photographs

Footnote

Rez. in: KO 31(2004) no.2, S.117-118 (D. Campbell): "This excellent volume offers 22 papers delivered at an IFLA Satellite meeting in Dublin Ohio in 2001. The conference gathered together information and computer scientists to discuss an important and difficult question: in what specific ways can the accumulated skills, theories and traditions of librarianship be mobilized to face the challenges of providing subject access to information in present and future networked information environments? The papers which grapple with this question are organized in a surprisingly deft and coherent way. Many conferences and proceedings have unhappy sessions that contain a hodge-podge of papers that didn't quite fit any other categories. As befits a good classificationist, editor I.C. McIlwaine has kept this problem to a minimum. The papers are organized into eight sessions, which split into two broad categories. The first five sessions deal with subject domains, and the last three deal with subject access tools. The five sessions and thirteen papers that discuss access in different domains appear in order of in creasing intension. The first papers deal with access in multilingual environments, followed by papers an access across multiple vocabularies and across sectors, ending up with studies of domain-specific retrieval (primarily education). Some of the papers offer predictably strong work by scholars engaged in ongoing, long-term research. Gerard Riesthuis offers a clear analysis of the complexities of negotiating non-identical thesauri, particularly in cases where hierarchical structure varies across different languages. Hope Olson and Dennis Ward use Olson's familiar and welcome method of using provocative and unconventional theory to generate meliorative approaches to blas in general subject access schemes. Many papers, an the other hand, deal with specific ongoing projects: Renardus, The High Level Thesaurus Project, The Colorado Digitization Project and The Iter Bibliography for medieval and Renaissance material. Most of these papers display a similar structure: an explanation of the theory and purpose of the project, an account of problems encountered in the implementation, and a discussion of the results, both promising and disappointing, thus far. Of these papers, the account of the Multilanguage Access to Subjects Project in Europe (MACS) deserves special mention. In describing how the project is founded an the principle of the equality of languages, with each subject heading language maintained in its own database, and with no single language used as a pivot for the others, Elisabeth Freyre and Max Naudi offer a particularly vivid example of the way the ethics of librarianship translate into pragmatic contexts and concrete procedures. The three sessions and nine papers devoted to subject access tools split into two kinds: papers that discuss the use of theory and research to generate new tools for a networked environment, and those that discuss the transformation of traditional subject access tools in this environment. In the new tool development area, Mary Burke provides a promising example of the bidirectional approach that is so often necessary: in her case study of user-driven classification of photographs, she user personal construct theory to clarify the practice of classification, while at the same time using practice to test the theory. Carol Bean and Rebecca Green offer an intriguing combination of librarianship and computer science, importing frame representation technique from artificial intelligence to standardize syntagmatic relationships to enhance recall and precision.
The papers discussing the transformation of traditional tools locate the point of transformation in different places. Some, like the papers an DDC, LCC and UDC, suggest that these schemes can be imported into the networked environment and used as a basis for improving access to networked resources, just as they improve access to physical resources. While many of these papers are intriguing, I suspect that convincing those outside the profession will be difficult. In particular, Edward O'Neill and his colleagues, while offering a fascinating suggestion for preserving the Library of Congress Subject Headings and their associated infrastructure by converting them into a faceted scheme, will have an uphill battle convincing the unconverted that LCSH has a place in the online networked environment. Two papers deserve mention for taking a different approach: both Francis Devadason and Maria Ines Cordeiro suggest that we import concepts and techniques rather than realized schemes. Devadason argues for the creation of a faceted pre-coordinate indexing scheme for Internet resources based an Deep Structure indexing, which originates in Bhattacharyya's Postulate-Based Permuted Subject Indexing and in Ranganathan's chain indexing techniques. Cordeiro takes up the vitally important role of authority control in Web environments, suggesting that the techniques of authority control be expanded to enhance user flexibility. By focusing her argument an the concepts rather than an the existing tools, and by making useful and important distinctions between library and non-library uses of authority control, Cordeiro suggests that librarianship's contribution to networked access has less to do with its tools and infrastructure, and more to do with concepts that need to be boldly reinvented. The excellence of this collection derives in part from the energy, insight and diversity of the papers. Credit also goes to the planning and forethought that went into the conference itself by OCLC, the IFLA Classification and Indexing Section, the IFLA Information Technology Section, and the Program Committee, headed by editor I.C. McIlwaine. This collection avoids many of the problems of conference proceedings, and instead offers the best of such proceedings: detail, diversity, and judicious mixtures of theory and practice. Some of the disadvantages that plague conference proceedings appear here. Busy scholars sometimes interpret the concept of "camera-ready copy" creatively, offering diagrams that could have used some streamlining, and label boxes that cut off the tops or bottoms of letters. The papers are necessarily short, and many of them raise issues that deserve more extensive treatment. The issue of subject access in networked environments is crying out for further synthesis at the conceptual and theoretical level. But no synthesis can afford to ignore the kind of energetic, imaginative and important work that the papers in these proceedings represent."

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Footnote

Rez. in: JASIST 54(2003) no.12, S.1166-1167 (Brenda Chawner): "Kochtanek and Matthews have written a welcome addition to the small set of introductory texts an applications of information technology to library and information Services. The book has fourteen chapters grouped into four sections: "The Broader Context," "The Technologies," "Management Issues," and "Future Considerations." Two chapters provide the broad content, with the first giving a historical overview of the development and adoption of "library information systems." Kochtanek and Matthews define this as "a wide array of solutions that previously might have been considered separate industries with distinctly different marketplaces" (p. 3), referring specifically to integrated library systems (ILS, and offen called library management systems in this part of the world), and online databases, plus the more recent developments of Web-based resources, digital libraries, ebooks, and ejournals. They characterize technology adoption patterns in libraries as ranging from "bleeding edge" to "leading edge" to "in the wedge" to "trailing edge"-this is a catchy restatement of adopter categories from Rogers' diffusion of innovation theory, where they are more conventionally known as "early adopters," "early majority," "late majority," and "laggards." This chapter concludes with a look at more general technology trends that have affected library applications, including developments in hardware (moving from mainframes to minicomputers to personal Computers), changes in software development (from in-house to packages), and developments in communications technology (from dedicated host Computers to more open networks to the current distributed environment found with the Internet). This is followed by a chapter describing the ILS and online database industries in some detail. "The Technologies" begins with a chapter an the structure and functionality of integrated library systems, which also includes a brief discussion of precision versus recall, managing access to internal documents, indexing and searching, and catalogue maintenance. This is followed by a chapter an open systems, which concludes with a useful list of questions to consider to determine an organization's readiness to adopt open source solutions. As one world expect, this section also includes a detailed chapter an telecommunications and networking, which includes types of networks, transmission media, network topologies, switching techniques (ranging from dial up and leased lines to ISDN/DSL, frame relay, and ATM). It concludes with a chapter an the role and importance of standards, which covers the need for standards and standards organizations, and gives examples of different types of standards, such as MARC, Dublin Core, Z39.50, and markup standards such as SGML, HTML, and XML. Unicode is also covered but only briefly. This section world be strengthened by a chapter an hardware concepts-the authors assume that their reader is already familiar with these, which may not be true in all cases (for example, the phrase "client-Server" is first used an page 11, but only given a brief definition in the glossary). Burke's Library Technology Companion: A Basic Guide for Library Staff (New York: Neal-Schuman, 2001) might be useful to fill this gap at an introductory level, and Saffady's Introduction to Automation for Librarians, 4th ed. (Chicago: American Library Association, 1999) world be better for those interested in more detail. The final two sections, however, are the book's real strength, with a strong focus an management issues, and this content distinguishes it from other books an this topic such as Ferguson and Hebels Computers for Librarians: an Introduction to Systems and Applications (Waggawagga, NSW: Centre for Information Studies, Charles Sturt University, 1998). ...

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Date

8.10.2000 14:47:22

Source

New library world. 94(1993) no.1107, S.5-9

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Abstract

Die digitale Bibliothek, in der alles mit allem verlinkt ist, und man mit wenigen Klicks zur gewünschten Information gelangt, ist nach wie vor ein Traum vieler Bibliothekare und Benutzer. In der Realität aber existieren heterogene Informationssysteme nebeneinander: Online-Datenbanken, Aggregatordatenbanken, A&I-Datenbanken, Plattformen für E-Journals, OPACs. Zwischen diesen verschiedenen Systemen muss der Nutzer nun hin- und herschalten, um die gewünschte Information zu erhalten. Dass eine Verlinkung der verschiedenen elektronischen Ressourcen der Bibliothek ein Desiderat ist, hat inzwischen auch die Industrie erkannt. Es sind bereits erste Systeme auf dem Markt, die eine Navigation in heterogenen Informationsquellen ermöglichen. Zu nennen ist hier in erster Linie ExLibris SFX. Auch EBSCO hat mit LinkSource eine auf openURL basierte Lösung vorgelegt, um alle verfügbaren Quellen in eine Suchanfrage einzubinden. Diese Systeme sind prinzipiell sehr vielversprechend und von der Bibliothek sehr komfortabel zu managen, bewegen sich aber derzeit in einem preislichen Rahmen, der von den wenigsten Bibliotheken noch zusätzlich zu den ohnehin schon hohen Kosten für elektronische Ressourcen aufgebracht werden kann. An der UB Osnabrück und SuUB Bremen wurden daher Überlegungen angestellt, wie man ohne diese kostenpflichtigen Zusatzdienste die verschiedenen elektronischen Angebote der Bibliothek besser miteinander verknüpfen könnte. Konkret lautete die Fragestellung so: "Wie komme ich nach einer Recherche in einer bibliografischen Online-Datenbank zum Volltext?" Die meisten OnlineDatenbanken sind immer noch rein bibliografische Datenbanken, die allerhöchstens ein Abstract anbieten (A&I-Datenbanken). Erscheint ein Rechercheergebnis dem Benutzer so interessant, dass er gern den Volltext des betreffenden Artikels oder des Buches einsehen möchte, so hat er dazu mehrere Möglichkeiten: Die einfachste Möglichkeit liegt darin, den Volltext in elektronischer Form aufzurufen. Besteht diese Möglichkeit nicht, so muss er im OPAC recherchieren, ob der gesuchte Titel zumindest in gedruckter Version in der Bibliothek vorhanden ist. Ist dies nicht der Fall, so hat er die Möglichkeit, den Titel per Fernleihe oder document delivery zu bestellen. Diese drei Schritte - Aufrufen des Volltextes, Recherche im OPAC, Fernleihbestellung - sollten für den Benutzer dadurch vereinfacht werden, dass ent sprechende Links in die Online-Datenbanken integriert werden. So kann das aufwändige "kopieren und einfügen"- Verfahren entfallen. Die Einrichtung dieser verschiedenen Links brachte administrative, technische und lizenzrechtliche Probleme mit sich. Online-Datenbanken werden von verschiedenen Anbietern auf den Markt gebracht: von international agierenden Firmen bis hin zu kleinen Körperschaften. Es musste bei jedem Anbieter geklärt werden, welche Verlinkungen technisch und lizenzrechtlich möglich sind. Links zum elektronischen Volltext sind für den Nutzer sicherlich die ideale Lösung, denn so kann er vom Büro oder CIP-Pool aus den Artikel lesen bzw. ausdrucken, ohne in die Bibliothek gehen und dort nach der Print-Ausgabe suchen zu müssen. Bei Volltextlinks muss man zwischen zwei Arten von Links unterscheiden: Institutionsunabhängige Links sind zentral für alle Abonnenten der Online-Datenbank eingerichtet und werden immer angezeigt, unabhängig davon, ob die Bibliothek einen lizenzierten Volltextzugriff auf die betreffende elektronische Ressource hat. Institutionsabhängige Links sind nur für die elektronischen Ressourcen eingerichtet, für die die Bibliothek einen lizenzierten Zugang besitzt.
Im Falle von institutionsunabhängigen Links werden Volltextlinks angezeigt, die allerdings nur dann funktionieren, wenn die Bibliothek auch die entsprechenden Lizenzrechte besitzt. Beim Nutzer führen diese Links schnell zu Frustration, wenn der erhoffte Volltext nicht angezeigt wird, zumal es nicht ersichtlich ist, dass der Zugang zum elektronischen Volltext von der Institution nicht lizenziert worden ist. Dem Nutzer ist dann schwer zu vermitteln, dass diese Links immer auftauchten, es aber nicht immer möglich ist, auf den elektronischen Volltext zuzugreifen. Für die Bibliothek bedeuten institutionsunabhängige Links erhöhten Erklärungsbedarf: Die Nutzer müssen darüber informiert werden, bei welchen E-Journals sie an den Volltext gelangen können. Zusätzlich kompliziert wird diese Angelegenheit noch dadurch, dass Bibliotheken in aller Regel bei verschiedenen Verlagen verschiedene Zugriffsrechte haben: entweder auf gar keine Titel, oder auf die in Print abonnierten Titel oder (durch Konsortialverträge) einen cross access auch auf die Titel, die andere Bibliotheken abonniert haben. Zusätzlich sind auch noch zeitliche Beschränkungen zu bedenken: Elsevier beispielsweise gewährt für ScienceDirect Web-Editions nur Zugriff auf die Hefte der letzten 12 Monate.

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Abstract

Die Virtuelle Fachbibliothek GEO-LEO ermöglicht seit diesem September Wissenschaftlern die gleichzeitige Recherche in über 50 Dokumentenservern im In- und Ausland'. Damit setzt GEO-LEO die Open-Access-Prinzipien für Geo- und Montanwissenschaftler vollständig um. Bereits seit Anfang des Jahres bietet die Virtuelle Fachbibliothek mit ihrer Publikationsplattform GEO-LEOe-docs Wissenschaftlern die Möglichkeit ihre Arbeitsergebnisse und Publikationen direkt im Internet zugänglich zu machen. Als sogenannter Data-Provider stellt GEO-LEO die Metadaten der aufgenommenen Dokumente anschließend über die standardisierte OAI-PMH-Schnittstelle zur Verfügung, um die weltweite Zugänglichkeit der Dokumente wesentlich zu verbessern.

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Abstract

In diesem Kapitel werden Anwendungsgebiete und Ansätze für die semantische Beschreibung von Web Services behandelt. Bestehende Web Service Technologien leisten einen entscheidenden Beitrag zur Entwicklung verteilter Anwendungen dadurch, dass weithin akzeptierte Standards vorliegen, die die Kommunikation zwischen Anwendungen bestimmen und womit deren Kombination zu komplexeren Einheiten ermöglicht wird. Automatisierte Mechanismen zum Auffinden geeigneter Web Services und deren Komposition dagegen werden von bestehenden Technologien in vergleichsweise geringem Maß unterstützt. Ähnlich wie bei der Annotation statischer Daten im "Semantic Web" setzen Forschung und Industrie große Hoffnungen in die semantische Beschreibung von Web Services zur weitgehenden Automatisierung dieser Aufgaben.

Source

Semantic Web: Wege zur vernetzten Wissensgesellschaft. Hrsg.: T. Pellegrini, u. A. Blumauer

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Abstract

Der Kooperative Bibliotheksverbund Berlin-Brandenburg (KOBV) betreibt mit dem KOBV-Portal (http://digibib.kobv.de) seit Weihnachten 2003 ein fächerübergreifendes Informationsportal im Internet. Das Portal basiert auf der MetaLib-Software der Firma Exlibris, die gemeinsam mit dem KOBV entwickelt wurde. Das KOBV-Portal strebt den Nachweis sämtlicher konventioneller und elektronischer Bibliotheksbestände der Bibliotheken in der Region BerlinBrandenburg an. Darüber hinaus sollen im KOBV-Portal fachwissenschaftlich relevante, frei über das Internet zugängliche Ressourcen nachgewiesen werden. Personalisierte Dienste ermöglichen den Nutzerinnen die Speicherung von Suchanfragen, Suchergebnissen, e-Zeitschriftenlisten sowie das Anlegen von Ressourcenlisten, die - bei Anmeldung im KOBV-Portal - auf dem Server gespeichert werden und somit für weitere Sitzungen im KOBV-Portal erneut zur Verfügung stehen. Darüber hinaus existieren mehrere Exportfunktionen, die eine Weiterverwendung der Recherche-Ergebnisse in eigenen wissenschaftlichen Arbeiten ermöglichen (Ausgabe von Literaturlisten in Endnote, Ausdruck von Ergebnislisten bzw. Zuschicken von Ergebnislisten als E-Mail).

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Content

"Die Nationalbibliotheken von Dänemark, Estland und Lettland haben mit Jahresbeginn den Teilnehmerkreis von »The European Library« (www.europeanlibrary.com) erweitert. Mit der Weiterentwicklung der Portalsoftware ist das Angebot schneller und zuverlässiger geworden. Die unter dem Namen "The Europcan Library," (TEL) im Spätherbst vergangenen Jahres gestartete Europäische Digitale Bibliothek wächst weiter. Bis Ende 2006 werden die Onlinekataloge und mehr als 200 Sammlungen von 2,3 europäischen Nationalbibliotheken über dieses Internetportal recherchierbar sein. Das Angebot wird sich damit innerhalb eines Jahres nahezu verdoppeln. The European library ermöglicht integrierte Suchanfragen über institutionelle und geografische Grenzen hinweg. Das in den umfangreichen Datenbeständen der Bibliotheken repräntierte kuIturelle Erbe Europas wird damit vom Schreibtisch aus zugänglich. Urheberrechtsfreie digitale Dokumente können direkt abgerufen werden. Teilnehmende Bibliotheken passen ihre Kataloge an die Metadaten- und Suchstandards der Europäischen Digitalen Bibliothek an und ermöglichen damit die katalog- und sammlurngsübergreifende Recherche. Für The European Library wurde eine neue Webtechnologie verwendet, mit der Portalfunktionen einfach und preiswert realisiert werden können. Die Software "Portal-in-the-Browser" (www.dlib.org/dlib/february04/vanveen/02vanveen.html) steht Interessenten frei zur Verfügung. Die Entwickler erhoffen eine Anwendung in weiteren kulturellen Bereichen und damit die mögliche Verknüpfung der verschiedenen Sektoren. Für das kommende Frühjahr ist eine Benutzerbefragung zur weiteren Verbesserung von The European library geplant."

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Abstract

User demands to have access to complete and actual information about research may require integration of data from different CRISs. CRISs are rarely homogenous systems and problems of CRISs integration must be addressed from technological point of view. Implementation of CRIS providing access to heterogeneous data distributed among a number of CRISs is described. A few technologies - distributed databases, web services, semantic web are used for distributed CRIS to address different user requirements. Distributed databases serve to implement very efficient integration of homogenous systems, web services - to provide open access to research information, semantic web - to solve problems of integration semantically and structurally heterogeneous data sources and provide intelligent data retrieval interfaces. The problems of data completeness in distributed systems are addressed and CRIS-adequate solution for data completeness is suggested.

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Abstract

Integration der Navigation und Suche in lizenzierten Journalen und gleichzeitig in freien digitalen Dokumenten unter einer einheitlichen konsistenten Nutzeroberflache ist eines der ungelösten F&E-Probleme der Fachinformation. Hierbei müssen Elemente des Invisible Web und des Visible Web unter Berücksichtigung offener Standards nahtlos miteinander verbunden werden. Der Artikel beschreibt Ausgangspunkt und Entwicklungsgeschichte eines kooperativen Vorhabens "Verteilter Zeitschriftenserver", das sich auf dem Wege über eine Generalisierung zum "Verteilten Dokumentenserver" zur Basis der Kooperation von vascoda und AGVerbund mit dem Ziel der Realisierung einer Offenen Digitalen Bibliothek der Wissenschaften entwickelte.

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Abstract

The HILT High Level Thesaurus Project aims to study and report an the problern of cross-searching and browsing by subject across a range of communities, services, and service or resource types in the UK given the wide range of subject schemes and associated practices in place in the communities in question (Libraries, Museums, Archives, and Internet Services) and taking the international context into consideration. The paper reports an progess to date, focusing particularly an the inter-community consensus reached at a recent Stakeholder Workshop.

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Abstract

Purpose - Biodiversity resources are inevitably digital and stored in a wide variety of formats by researchers or stakeholders. In Malaysia, although digitizing biodiversity data has long been stressed, the interoperability of the biodiversity data is still an issue that requires attention. This is because, when data are shared, the question of copyright occurs, creating a setback among researchers wanting to promote or share data through online presentations. To solve this, the aim is to present an approach to integrate data through wrapping of datasets stored in relational databases located on networked platforms. Design/methodology/approach - The approach uses tools such as XML, PHP, ASP and HTML to integrate distributed databases in heterogeneous formats. Five current database integration systems were reviewed and all of them have common attributes such as query-oriented, using a mediator-based approach and integrating a structured data model. These common attributes were also adopted in the proposed solution. Distributed Generic Information Retrieval (DiGIR) was used as a model in designing the proposed solution. Findings - A new database integration system was developed, which is user-friendly and simple with common attributes found in current integration systems.