-
Koch, T.: Searching the Web : systematic overview over indexes (1995)
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- Date
- 2. 2.1996 15:59:23
- Pages
- S.29-61
- Source
- Wissen in elektronischen Netzwerken: Strukturierung, Erschließung und Retrieval von Informationsressourcen im Internet. Eine Auswahl von Vorträgen der 19. Jahrestagung der Gesellschaft für Klassifikation, Basel 1995. Hrsg.: H.-C. Hobohm u. H.-J. Wätjen
-
Koch, T.; Ardö, A.; Falcoz, F.; Nielsen, M.; Dandfær, M.: Improving resource discovery and retrieval on the Internet : the Nordic WAIS/World Wide Web Project and the classification of WAIS databases (1995)
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- Date
- 2. 2.1996 15:59:23
- Source
- Wissen in elektronischen Netzwerken: Strukturierung, Erschließung und Retrieval von Informationsressourcen im Internet. Eine Auswahl von Vorträgen der 19. Jahrestagung der Gesellschaft für Klassifikation, Basel 1995. Hrsg.: H.-C. Hobohm u. H.-J. Wätjen
-
Koch, T.; Ardö, A.: Automatic classification of full-text HTML-documents from one specific subject area : DESIRE II D3.6a, Working Paper 2 (2000)
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- Content
- 1 Introduction / 2 Method overview / 3 Ei thesaurus preprocessing / 4 Automatic classification process: 4.1 Matching -- 4.2 Weighting -- 4.3 Preparation for display / 5 Results of the classification process / 6 Evaluations / 7 Software / 8 Other applications / 9 Experiments with universal classification systems / References / Appendix A: Ei classification service: Software / Appendix B: Use of the classification software as subject filter in a WWW harvester.
-
Koch, T.; Ardö, A.; Brümmer, A.: ¬The building and maintenance of robot based internet search services : A review of current indexing and data collection methods. Prepared to meet the requirements of Work Package 3 of EU Telematics for Research, project DESIRE. Version D3.11v0.3 (Draft version 3) (1996)
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- Abstract
- After a short outline of problems, possibilities and difficulties of systematic information retrieval on the Internet and a description of efforts for development in this area, a specification of the terminology for this report is required. Although the process of retrieval is generally seen as an iterative process of browsing and information retrieval and several important services on the net have taken this fact into consideration, the emphasis of this report lays on the general retrieval tools for the whole of Internet. In order to be able to evaluate the differences, possibilities and restrictions of the different services it is necessary to begin with organizing the existing varieties in a typological/ taxonomical survey. The possibilities and weaknesses will be briefly compared and described for the most important services in the categories robot-based WWW-catalogues of different types, list- or form-based catalogues and simultaneous or collected search services respectively. It will however for different reasons not be possible to rank them in order of "best" services. Still more important are the weaknesses and problems common for all attempts of indexing the Internet. The problems of the quality of the input, the technical performance and the general problem of indexing virtual hypertext are shown to be at least as difficult as the different aspects of harvesting, indexing and information retrieval. Some of the attempts made in the area of further development of retrieval services will be mentioned in relation to descriptions of the contents of documents and standardization efforts. Internet harvesting and indexing technology and retrieval software is thoroughly reviewed. Details about all services and software are listed in analytical forms in Annex 1-3.
-
Koch, T.; Knorz, G.: ¬Die Rolle der Bibliothek im Zeitalter des Internet : Provokation und Nachdenken (1995)
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-
Koch, T.; Oßwald, A.: Medienwechsel: Gedrucktes zur Orientierung in der elektronischen Vielfalt : einführende Veröffentlichungen zum Thema 'Internet' (1993)
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- Abstract
- Immer häufiger werden das System 'Internet', die dort genutzten Programmfunktionen und Werkzeuge sowie die damit zugänglichen Informationsangebote in Fachdiskussionen und -veröffentlichungen vorgestellt. Als einführende Hilfsmittel und Ratgeber zur Information über dieses Netzwerk sowie zur eigentlichen Nutzung von Internet sind (neben in elektronischer Form vorliegenden Publikationen) mittlerweile mehrere einführende Printveröffentlichungen in englischer Sprache auf dem Markt. Drei dieser Publikationen werden im vorliegenden Artikel ausführlicher vorgestellt und bewertet. Zum besseren Verständnis des sachlichen Zusammenhangs ist der Rezension ein knapp gefaßter Überblick über die unter dem Begriff 'Internet' zusammengefaßten Funktionen und Informationsangebote vorangestellt.
-
Ardö, A.; Godby, J.; Houghton, A.; Koch, T.; Reighart, R.; Thompson, R.; Vizine-Goetz, D.: Browsing engineering resources on the Web : a general knowledge organization scheme (Dewey) vs. a special scheme (EI) (2000)
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- Abstract
- Under the auspices of the Desire II project, researchers at NetLab and OCLC are providing searching and browsing of a test collection of engineering documents on the Web. The goal of the project is to explore simple methods of automatic classification to provide subject browsing of a robot-generated engineering index. At NetLab the documents are automatically classified and organized using an engineering-specific scheme, the Engineering Index (Ei) Thesaurus and Classification; at OCLC the Dewey Decimal Classification (DDC), a general knowledge organization scheme, is being used
- Object
- Engineering Index
-
Koch, T.; Seiffert, F.; Wätjen, H.-J.: Informationen im Web anbieten und wiederfinden (1998)
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- Content
- Enthält die einzelnen Beiträge: KOCH, T.: Übersicht über die verschiedenen Typen von Suchdiensten; SEIFFERT, F.: Hilfsmittel zur Wahl passender Suchdienste für bestimmte Zwecke; KOCH, T.: Konzeptsuche / Erweiterung der Suchanfrage; KOCH, T.: Kontrolliertes Vokabular; SEIFFERT, F.: Ranking; WÄTJEN, H.-J.: Integration von Searching und Browsing; KOCH, T.: Metadaten und Suchdienste
- Source
- Weiter auf dem Weg zur virtuellen Bibliothek! Kundenservice zwischen Quantität und Qualität. 3. INETBIB-Tagung vom 4.-6. März 1998 in Köln. 2., erw. Aufl. Hrsg.: B. Jedwabski u. J. Nowak
-
Koch, T.; Vizine-Goetz, D.: Automatic classification and content navigation support for Web services : DESIRE II cooperates with OCLC (1998)
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- Abstract
- Emerging standards in knowledge representation and organization are preparing the way for distributed vocabulary support in Internet search services. NetLab researchers are exploring several innovative solutions for searching and browsing in the subject-based Internet gateway, Electronic Engineering Library, Sweden (EELS). The implementation of the EELS service is described, specifically, the generation of the robot-gathered database 'All' engineering and the automated application of the Ei thesaurus and classification scheme. NetLab and OCLC researchers are collaborating to investigate advanced solutions to automated classification in the DESIRE II context. A plan for furthering the development of distributed vocabulary support in Internet search services is offered.
-
Koch, T.: Quality-controlled subject gateways : definitions, typologies, empirical overview (2000)
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- Content
- Mit einem Anhang, der in fachlicher Ordnung vorhandene Subject gateways auflistet; vgl. unter: http://www.lub.lu.se/tk/SBIGs.html
- Date
- 22. 6.2002 19:37:55
-
Koch, T.; Ardö, A.; Noodén, L.: ¬The construction of a robot-generated subject index : DESIRE II D3.6a, Working Paper 1 (1999)
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- Abstract
- This working paper describes the creation of a test database to carry out the automatic classification tasks of the DESIRE II work package D3.6a on. It is an improved version of NetLab's existing "All" Engineering database created after a comparative study of the outcome of two different approaches to collecting the documents. These two methods were selected from seven different general methodologies to build robot-generated subject indices, presented in this paper. We found a surprisingly low overlap between the Engineering link collections we used as seed pages for the robot and subsequently an even more surprisingly low overlap between the resources collected by the two different approaches. That inspite of using basically the same services to start the harvesting process from. A intellectual evaluation of the contents of both databases showed almost exactly the same percentage of relevant documents (77%), indicating that the main difference between those aproaches was the coverage of the resulting database.
-
Oßwald, A.; Koch, T.: Internet und Bibliotheken : ein einführender Überblick (1994)
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- Source
- Zeitschrift für Bibliothekswesen und Bibliographie. 41(1994) H.1, S.1-31
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Koch, T.: Suchmaschinen im Internet (1996)
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- Abstract
- Darstellung zu den verschiedenen Möglichkeiten der inhaltlichen Suche im Internet
- Footnote
- Vortrag, gehalten auf der INETBIB-Tagung in Dortmund am 11.3.1996
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Koch, T.: Suchmaschinen im Internet (1996)
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- Abstract
- Darstellung der verschiedenen search engines zur sachlichen Suche im Internet
- Source
- Weiter auf dem Weg zur virtuellen Bibliothek! Bibliotheken nutzen das Internet. Erste INETBIB-Tagung in der Universitätsbibliothek Dortmund vom 11.-13. März 1996. 2., erw. Aufl
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Koch, T.: Browsing and searching Internet resources (1996)
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- Abstract
- Darstellung zu den verschiedenen Möglichkeiten der inhaltlichen Suche im Internet
-
Koch, T.: ¬Az internetforrasok toketesebb leirasahoz, szervezesehez es keresesehez alkalmas oszatlyozasi rendszerek hasznalata (2000)
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- Date
- 3. 3.1999 20:29:09
-
Ardö, A.; Koch, T.: Wide-area information server (WAIS) as the hub of an electronic library service at Lund University (1993)
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- Series
- Veröffentlichungen der Universitätsbibliothek Essen; 15
