Search (733 results, page 1 of 37)

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Abstract

Considering the characteristics of hypertext systems and problems such as cognitive overload and the disorientation of users, this project studies subject hypertext documents that have undergone conceptual structuring using facets for content representation and improvement of information retrieval during navigation. The main objective was to assess the possibility of the application of topic map technology for automating the compatibilization process of these structures. For this purpose, two dissertations from the UFMG Information Science Post-Graduation Program were adopted as samples. Both dissertations had been duly analyzed and structured on the MHTX (Hypertextual Map) prototype database. The faceted structures of both dissertations, which had been represented in conceptual maps, were then converted into topic maps. It was then possible to use the merge property of the topic maps to promote the semantic interrelationship between the maps and, consequently, between the hypertextual information resources proper. The merge results were then analyzed in the light of theories dealing with the compatibilization of languages developed within the realm of information technology and librarianship from the 1960s on. The main goals accomplished were: (a) the detailed conceptualization of the merge process of the topic maps, considering the possible compatibilization levels and the applicability of this technology in the integration of faceted structures; and (b) the production of a detailed sequence of steps that may be used in the implementation of topic maps based on faceted structures.

Date

22. 2.2013 11:39:23

Object

Topic maps

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Abstract

Purpose - The purpose of the research reported here is to improve comprehension of the socially-negotiated identity of concepts in the domain of knowledge organization. Because knowledge organization as a domain has as its focus the order of concepts, both from a theoretical perspective and from an applied perspective, it is important to understand how the domain itself understands the meaning of a concept. Design/methodology/approach - The paper provides an empirical demonstration of how the domain itself understands the meaning of a concept. The paper employs content analysis to demonstrate the ways in which concepts are portrayed in KO concept maps as signs, and they are subjected to evaluative semiotic analysis as a way to understand their meaning. The frame was the entire population of formal proceedings in knowledge organization - all proceedings of the International Society for Knowledge Organization's international conferences (1990-2010) and those of the annual classification workshops of the Special Interest Group for Classification Research of the American Society for Information Science and Technology (SIG/CR). Findings - A total of 344 concept maps were analyzed. There was no discernible chronological pattern. Most concept maps were created by authors who were professors from the USA, Germany, France, or Canada. Roughly half were judged to contain semiotic content. Peirceian semiotics predominated, and tended to convey greater granularity and complexity in conceptual terminology. Nodes could be identified as anchors of conceptual clusters in the domain; the arcs were identifiable as verbal relationship indicators. Saussurian concept maps were more applied than theoretical; Peirceian concept maps had more theoretical content. Originality/value - The paper demonstrates important empirical evidence about the coherence of the domain of knowledge organization. Core values are conveyed across time through the concept maps in this population of conference papers.

Content

Vgl. auch den Beitrag: Treude, L.: Das Problem der Konzeptdefinition in der Wissensorganisation: über einen missglückten Versuch der Klärung. In: LIBREAS: Library ideas. no.22, 2013, S.xx-xx.

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Abstract

Cartographic maps have guided our explorations for centuries, allowing us to navigate the world. Science maps have the potential to guide our search for knowledge in the same way, helping us navigate, understand, and communicate the dynamic and changing structure of science and technology. Allowing us to visualize scientific results, science maps help us make sense of the avalanche of data generated by scientific research today. Atlas of Science, features more than thirty full-page science maps, fifty data charts, a timeline of science-mapping milestones, and 500 color images; it serves as a sumptuous visual index to the evolution of modern science and as an introduction to "the science of science"--charting the trajectory from scientific concept to published results. Atlas of Science, based on the popular exhibit "Places & Spaces: Mapping Science," describes and displays successful mapping techniques. The heart of the book is a visual feast: Claudius Ptolemy's Cosmographia World Map from 1482; a guide to a PhD thesis that resembles a subway map; "the structure of science" as revealed in a map of citation relationships in papers published in 2002; a periodic table; a history flow visualization of the Wikipedia article on abortion; a globe showing the worldwide distribution of patents; a forecast of earthquake risk; hands-on science maps for kids; and many more. Each entry includes the story behind the map and biographies of its makers. Not even the most brilliant minds can keep up with today's deluge of scientific results. Science maps show us the landscape of what we know. Exhibition Ongoing National Science Foundation, Washington, D.C. The Institute for Research Information and Quality Assurance, Bonn, Germany Storm Hall, San Diego State College

Date

22. 1.2017 17:12:16

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Abstract

Generally, Computer Science (CS) classifications are inconsistent in taxonomy strategies. t is necessary to develop CS taxonomy research to combine its historical perspective, its current knowledge and its predicted future trends - including all breakthroughs in information and communication technology. In this paper we have analyzed the ACM Computing Classification System (CCS) by means of visualization maps. The important achievement of current work is an effective visualization of classified documents from the ACM Digital Library. From the technical point of view, the innovation lies in the parallel use of analysis units: (sub)classes and keywords as well as a spherical 3D information surface. We have compared both the thematic and semantic maps of classified documents and results presented in Table 1. Furthermore, the proposed new method is used for content-related evaluation of the original scheme. Summing up: we improved an original ACM classification in the Computer Science domain by means of visualization.

Date

22. 7.2010 19:36:46

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Abstract

Indexing consists of both novel and more traditional techniques. Cutting-edge indexing techniques, such as automatic indexing, ontologies, and topic maps, were developed independently of older techniques such as thesauri, but it is now recognized that these older methods also hold expertise. Indexing describes various traditional and novel indexing techniques, giving information professionals and students of library and information sciences a broad and comprehensible introduction to indexing. This title consists of twelve chapters: an Introduction to subject readings and theasauri; Automatic indexing versus manual indexing; Techniques applied in automatic indexing of text material; Automatic indexing of images; The black art of indexing moving images; Automatic indexing of music; Taxonomies and ontologies; Metadata formats and indexing; Tagging; Topic maps; Indexing the web; and The Semantic Web.

Date

24. 8.2016 14:03:22

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Abstract

This paper maps the concepts "space" and "dimensionality" in classifications, in particular in visualizations hereof, from a historical perspective. After a historical excursion in the domain of classification theory of what in mathematics is known as dimensionality reduction in representations of a single universe of knowledge, its potentiality will be explored for information retrieval and navigation in the multiverse of the World Wide Web.

Date

22. 2.2013 11:31:25

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Abstract

This paper explores relationships between different classification schemes. It suggests how these relationships could be considered part of the reception of a scheme, in particular as an aspect of its "Wirkung". Both intra-domain and inter-domain scheme relationships are examined, and are combined with pre-existing research on intra-scheme relationships. A model is posited which maps inter-scheme relationships, showing some of the complexities evoked in analysing the connections between classification schemes. Musical instrument (organology) classification is used as examples throughout the paper, to illustrate the ideas being discussed.

Source

Knowledge organization in the 21st century: between historical patterns and future prospects. Proceedings of the Thirteenth International ISKO Conference 19-22 May 2014, Kraków, Poland. Ed.: Wieslaw Babik

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Content

Vgl.: http%3A%2F%2Fcreativechoice.org%2Fdoc%2FHansJonas.pdf&usg=AOvVaw1TM3teaYKgABL5H9yoIifA&opi=89978449.

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Abstract

Knowledge organization is needed everywhere. Its importance is marked by its pervasiveness. This paper will show many areas, tasks, and functions where proper use of knowledge organization, construed as broadly as the term implies, provides support for learning and understanding, for sense making and meaning making, for inference, and for discovery by people and computer programs and thereby will make the world a better place. The paper focuses not on metadata but rather on structuring and representing the actual data or knowledge itself and argues for more communication between the largely separated KO, ontology, data modeling, and semantic web communities to address the many problems that need better solutions. In particular, the paper discusses the application of knowledge organization in knowledge bases for question answering and cognitive systems, knowledge bases for information extraction from text or multimedia, linked data, big data and data analytics, electronic health records as one example, influence diagrams (causal maps), dynamic system models, process diagrams, concept maps, and other node-link diagrams, information systems in organizations, knowledge organization for understanding and learning, and knowledge transfer between domains. The paper argues for moving beyond triples to a more powerful representation using entities and multi-way relationships but not attributes.

Date

27.11.2015 20:52:22

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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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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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Source

http://www.google.de/url?sa=t&rct=j&q=&esrc=s&source=web&cd=5&ved=0CDQQFjAE&url=http%3A%2F%2Fdigbib.ubka.uni-karlsruhe.de%2Fvolltexte%2Fdocuments%2F3131107&ei=HzFWVYvGMsiNsgGTyoFI&usg=AFQjCNE2FHUeR9oQTQlNC4TPedv4Mo3DaQ&sig2=Rlzpr7a3BLZZkqZCXXN_IA&bvm=bv.93564037,d.bGg&cad=rja

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Abstract

Concept mapping is a technique for representing knowledge in graphic form. It is often used in academic conference papers by professionals in the field of knowledge organization. By examining the entire run of conference proceedings from ISKO and ASIS SIG/CR, looking specifically at the nationality and professional occupation of the authors who used concept maps in their papers, this study analyzes how concept maps have been implemented. A total of 652 papers and 327 concept maps were examined, from nine volumes of ISKO conference proceedings and thirteen volumes of ASIS SIG/CR conference proceedings. In addition, I applied Dahlberg's classification in order to better understand the nature my findings. I found that Dahlberg's "object" category covers the majority of titles and concept maps found in the proceedings. Future studies need to address how concept maps used by researchers can be organized to support retrieval.

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Abstract

VOS is a new mapping technique that can serve as an alternative to the well-known technique of multidimensional scaling (MDS). We present an extensive comparison between the use of MDS and the use of VOS for constructing bibliometric maps. In our theoretical analysis, we show the mathematical relation between the two techniques. In our empirical analysis, we use the techniques for constructing maps of authors, journals, and keywords. Two commonly used approaches to bibliometric mapping, both based on MDS, turn out to produce maps that suffer from artifacts. Maps constructed using VOS turn out not to have this problem. We conclude that in general maps constructed using VOS provide a more satisfactory representation of a dataset than maps constructed using well-known MDS approaches.

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Abstract

Visualization of scientific results using networks has become popular in scientometric research. We provide base maps for Mendeley reader count data using the publication year 2012 from the Web of Science data. Example networks are shown and explained. The reader can use our base maps to visualize other results with the VOSViewer. The proposed overlay maps are able to show the impact of publications in terms of readership data. The advantage of using our base maps is that it is not necessary for the user to produce a network based on all data (e.g., from 1 year), but can collect the Mendeley data for a single institution (or journals, topics) and can match them with our already produced information. Generation of such large-scale networks is still a demanding task despite the available computer power and digital data availability. Therefore, it is very useful to have base maps and create the network with the overlay technique.

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Abstract

This study presents a qualitative examination of the applicability of several taxonomies of bibliographic relationships to sheet maps. Examples of relationships between sheet maps are identified and typed using the systems developed by Tillett and Smiraglia and the taxonomy of relationships described in the Functional Requirements for Bibliographic Records (FRBR) conceptual model and in Resource Description and Access (RDA). This process reveals that while many of the relationship categories in these systems apply well to sheet maps, some are not applicable at all while others may apply with some redefinition.