Search (4032 results, page 3 of 202)

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Abstract

Presents an approach that integrates searching and browsing in a manner that improves both paradigms. When browsing is the primary task, it enables semantic content-based tailoring of Web maps in both the generation as well as the visualization phases. When search is the primary task, it enables contextualization of the results by augmenting them with the documents' neighbourhoods. This approach is embodied in WebCutter, a client-server system fully integrated with Web software. WebCutter consists of a map generator running off a standard Web server and a map visualization client implemented as a Java applet runalble from any standard Web browser and requiring no installation or external plug-in application. WebCutter is in beta stage and is in the process of being integrated into the Lotus Domino application product line

Date

1. 8.1996 22:08:06

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Abstract

QVIZ will research and create a framework for visualizing and querying archival resources by a time-space interface based on maps and emergent knowledge structures. The framework will also integrate social software, such as wikis, in order to utilize knowledge in existing and new communities of practice. QVIZ will lead to improved information sharing and knowledge creation, easier access to information in a user-adapted context and innovative ways of exploring and visualizing materials over time, between countries and other administrative units. The common European framework for sharing and accessing archival information provided by the QVIZ project will open a considerably larger commercial market based on archival materials as well as a richer understanding of European history.

Content

Vortrag anlässlich des Workshops: "Extending the multilingual capacity of The European Library in the EDL project Stockholm, Swedish National Library, 22-23 November 2007".

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Abstract

In unserer heutigen Informationsgesellschaft führen immer neue Technologien und Medien sowie die massiv zunehmende Datenmenge zu einem sehr hohen Stellenwert der Informations- und Medienkompetenz. Im vorliegenden Beitrag werden die Herausforderungen im Prozess der Vermittlung dieser Kompetenzen im Hochschulbereich thematisiert. Es wird ein Konzept vorgestellt, das einen integrativen Blended-Learning-Ansatz vorschlägt, in dessen Rahmen Schlüsselqualifikationen nach dem Ansatz des kontextuellen Lehrens vermittelt werden können. Es findet hierbei eine Fokussierung auf den Prozess der kollaborativen Konzeption und Erarbeitung von Wissensstrukturen statt, bei dem Studierende auf einem Themengebiet implizite Zusammenhänge erarbeiten und in Kooperation mit ihren Kommilitonen verschiedene Sichtweisen, Begrifflichkeiten und Verständnisse diskutieren sowie in Form von Topic Maps visualisieren. Die Vorgehensweise stützt sich auf neue Erkenntnisse der kognitiven Lernpsychologie, der Pädagogik und der Didaktik. Der Prozess der kollaborativen Ontologieentwicklung findet in einer über mehrere Jahre hinweg entwickelten und eingesetzten Lernumgebung statt, die explizit auf die Vermittlung von Schlüsselqualifikationen ausgerichtet ist.

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

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Abstract

We describe the latent semantic indexing subspace signature model (LSISSM) for semantic content representation of unstructured text. Grounded on singular value decomposition, the model represents terms and documents by the distribution signatures of their statistical contribution across the top-ranking latent concept dimensions. LSISSM matches term signatures with document signatures according to their mapping coherence between latent semantic indexing (LSI) term subspace and LSI document subspace. LSISSM does feature reduction and finds a low-rank approximation of scalable and sparse term-document matrices. Experiments demonstrate that this approach significantly improves the performance of major clustering algorithms such as standard K-means and self-organizing maps compared with the vector space model and the traditional LSI model. The unique contribution ranking mechanism in LSISSM also improves the initialization of standard K-means compared with random seeding procedure, which sometimes causes low efficiency and effectiveness of clustering. A two-stage initialization strategy based on LSISSM significantly reduces the running time of standard K-means procedures.

Date

23. 3.2013 13:22:36

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Abstract

This comprehensive annotated webliography describes online cataloging resources that are free to use, currently updated, and of high quality. The major aim of this webliography is to provide assistance for catalogers who are new to the profession, unfamiliar with cataloging specific formats, or unable to access costly print and subscription resources. The annotated resources include general websites and webpages, databases, workshop presentations, streaming media, and local documentation. The scope of the webliography is limited to resources reflecting traditional cataloging practices using the Anglo-American Cataloguing Rules, 2nd edition, RDA: Resource Description and Access, and MAchine Readable Cataloging (MARC) standards. Non-MARC metadata schemas like Dublin Core are not covered. Most components of cataloging are represented in this webliography, such as authority control, classification, subject headings, and genre terms. Guidance also is provided for cataloging miscellaneous formats including sound and videorecordings, streaming media, e-books, video games, graphic novels, kits, rare materials, maps, serials, realia, government documents, and music.

Date

10. 9.2000 17:38:22

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Abstract

Alon Friedman und Richard P. Smiraglia kündigen in ihrem aktuellen Artikel "Nodes and arcs: concept map, semiotics, and knowledge organization" an, eine "empirical demonstration of how the domain [of knowledge organisation] itself understands the meaning of a concept" durchzuführen. Die Klärung des Konzeptbegriffs ist ein begrüßenswertes Vorhaben, das die Autoren in einer empirischen Untersuchung von concept maps (also Konzeptdiagrammen) aus dem Bereich der Wissensorganisation nachvollziehen wollen. Beschränkte sich Friedman 2011 in seinem Artikel "Concept theory and semiotics in knowledge organization" [Fn 01] noch ausschließlich auf Sprache als Medium im Zeichenprozess, bezieht er sich nun auf Visualisierungen als Repräsentationsform und scheint somit seinen Ansatz um den Aspekt der Bildlichkeit zu erweitern. Zumindest erwartet man dies nach der Lektüre der Beschreibung des aktuellen Vorhabens von Friedman und Smiraglia, das - wie die Autoren verkünden - auf einer semiotischen Grundlage durchgeführt worden sei.

Source

LIBREAS: Library ideas. no.22, 2013, S.xx-xx

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Abstract

Exploring collections by their subject matter is an important functionality for library users. We developed an online tool called SciGator in order to allow users to browse the Dewey Decimal Classification (DDC) classes used in different libraries at the University of Pavia and to perform different types of search in the OPAC. Besides navigation of DDC hierarchies, SciGator suggests "see-also" relationships with related classes and maps equivalent classes in local shelving schemes, thus allowing the expansion of search queries to include subjects contiguous to the initial one. We are developing new features, including the possibility to expand searches even more to national and international catalogues.

Content

Beitrag eines Special Issue: ISKO-Italy: 8' Incontro ISKO Italia, Università di Bologna, 22 maggio 2017, Bologna, Italia.

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Object

Topic maps

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Abstract

Suggests 3 reasons for the acquisition of digital maps in the map library: that they provide opportunities to create new maps, and to replace old ones; that they provide new and valuable ways of visualising and using spatial data; and that they will satisfy new kinfs of users. Discusses setting up the electronic map library and describes some available computer map packages. Considers the variety of map user needs and how electronic maps can match these needs

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Abstract

This article discusses areas of the bibliographic record where differences from cataloging monographs are commonly encountered in the descriptive cataloging of flat or folded sheet maps. Major fields in the bibliographic record are treated, such as title proper, main entry, and scale, pointing out common misunderstandings and errors which those unfamiliar with cataloging maps may experience. Hints, guidelines, illustrations, and examples for the resolution of these problems are given.

Footnote

Teil eines Themenheftes zu: "Maps and related cartographic materials: cataloging, classification, and bibliographic control"

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Abstract

Although maps have been used for thousands of years, they have not been maintained or organized as well as printed books until relatively recently. Maps were often treated as ephemeral material. Early attempts at map cataloging are much more scattered than book cataloging, and printed catalogs of early libraries often omitted the mention of maps. It was only after map use became commonplace and thematic maps increased in number that cataloging and classification attempts began in earnest. The classification and cataloging of maps started to come together in the early part of the twentieth century. This article will examine how maps were organized in early collections and some of the advice provided for catalogers of map collections from the end of the nineteenth century and the first half of the twentieth.

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Abstract

Although maps have been used for thousands of years, they have not been maintained or organized as well as printed books until relatively recently. Maps were often treated as ephemeral material. Early attempts at map cataloging are much more scattered than book cataloging, and printed catalogs of early libraries often omitted the mention of maps. It was only after map use became commonplace and thematic maps increased in number that cataloging and classification attempts began in earnest. The classification and cataloging of maps started to come together in the early part of the twentieth century. This article will examine how maps were organized in early collections and some of the advice provided for catalogers of map collections from the end of the nineteenth century and the first half of the twentieth.

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Abstract

This article comprises a literature review and conceptual analysis of Topic Maps-the ISO standard for representing information about the structure of information resources-according to the principles of Knowledge Organization (KO). Using the main principles from this discipline, the study shows how Topic Maps is proposed as an ontology model independent of technology. Topic Maps constitutes a 'bibliographic' meta-language able to represent, extend, and integrate almost all existing Knowledge Organization Systems (KOS) in a standards-based generic model applicable to digital content and to the Web. This report also presents an inventory of the current applications of Topic Maps in Libraries, Archives, and Museums (LAM), as well as in the Digital Humanities. Finally, some directions for further research are suggested, which relate Topic Maps to the main research trends in KO.

Object

Topic maps

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Abstract

Topic Maps auf der einen Seite und das Programm Concepto auf der anderen Seite werden beschrieben. Mt Topic Maps können Wortnetze und einfache Satzstrukturen dargestellt werden. Concepto dient zur Erfassung, Bearbeitung und Visualisierung von Wortschatz und Strukturen. Es unterstützt ein Wortmodell, bei dem die verschiedenen Lesarten eines Wortes erfasst und einfachen, formalsprachlichen Begriffen zugewiesen werden können. Die Funktionen beider Systeme werden verglichen. Es wird dargestellt, was an Topic Maps und an Concepto ergänzt werden müsste, wenn beide Systeme einen kompatiblen, wechselseitigen Datenaustausch zulassen sollen. Diese Erweiterungen würden die Anwendbarkeit der Systeme noch interessanter machen.

Object

Topic maps

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Abstract

Cartographic materials portray subject matter, focused on geographical area, with themes and cartographic forms as other facets of interest to users. Subject headings provide access to geographic areas and subject matter, both of which are significant to reference work and organization of map collections. This article focuses on the Library of Congress subject headings system, and its method of application for cartographic materials. Specific formats - including atlases, views, globes, charts and digital maps - and typical problem areas - such as geographic names, coastlines, boundary maps, ancillary maps, facsimiles, topographic quadrangles, and maps accompanying books - are discussed.

Footnote

Teil eines Themenheftes zu: "Maps and related cartographic materials: cataloging, classification, and bibliographic control"

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Date

22. 5.1998 20:02:22

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Date

22. 5.1998 20:02:22

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Date

22. 5.1998 20:02:22