Search (4576 results, page 1 of 229)

  1. Tenopir, C.; Neufang, R.: Electronic reference options : how they stack up in research libraries (1992) 0.19 
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    Abstract
    Report of a survey 96 (out of 119) US and Canadian member libraries of the Association of Research Libraries (ARL) to determine their use of on-line and CD-ROM data bases, including OPACs. 4 catalogues were identified: on-line mediated searching (97%); CD-ROMs (96%); end-user on-line searching (45%); and locally mounted magnetic tapes (37,5%). The latter option is expected to be the most widely used option in the new future. Although CD-ROM caused some migration from on-line, most migration was from printed sources to CD-ROM. Tables show: on-line hosts most used for intermediary on-line searching; on-line data bases most after searched by intermediaries; end user on-line systems offered by most libraries; the 20 most popular CD-ROM data bases; and the 8 magnetic tape data bases accessible on OPACs
    Source
    Online. 16(1992) no.2, S.22-28
  2. Havener, W.M.: Answering ready reference questions : print versus online (1990) 0.16 
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    Abstract
    Reports the findings of an experiment designed to compare on-line data bases and equivalent printed versions in 1 area of reference services, the answering of ready reference questions. 68 reference librarians searched for answers to the same set of 12 questions using either print or on-line sources. Details of the questions are given. In the case of conceptual questions on-line proved faster than print, particularly for 2-concept questions, and the increased speed was not at the expense of accuracy. In the case of factual questions, print sources proved to be considerably faster than on-line. Suggests 2 guidelines: when bibliographic information is available in both print and on-line formats, on-line should be the tool of choice, particularly for multi-concept questions; simple factul questions can be answered more quickly using printed sources.
    Source
    Online. 14(1990) no.1, S.22-28
  3. Riesthuis, G.J.A.; Stuurman, P.: Tendenzen in de onderwerpsontsluiting : T.4: Onderwerpsontsluiting en on-line catalogi (1990) 0.16 
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    Source
    Open. 22(1990) no.10, S.326-330
  4. Duxbury, N.: ¬A university press enters cyberspace : developing an on-line catalogue (1994) 0.16 
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    Abstract
    Scholarly presses are pioneering the use of the Internet as a vehicle for promoting their publications, there are more than 30 university press catalogues accessible online. Describes the development of an online catalogue by the UBC Press, setting out its objects and procedures and detailing its design and features offered
  5. Wenyin, L.; Chen, Z.; Li, M.; Zhang, H.: ¬A media agent for automatically builiding a personalized semantic index of Web media objects (2001) 0.14 
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    Abstract
    A novel idea of media agent is briefly presented, which can automatically build a personalized semantic index of Web media objects for each particular user. Because the Web is a rich source of multimedia data and the text content on the Web pages is usually semantically related to those media objects on the same pages, the media agent can automatically collect the URLs and related text, and then build the index of the multimedia data, on behalf of the user whenever and wherever she accesses these multimedia data or their container Web pages. Moreover, the media agent can also use an off-line crawler to build the index for those multimedia objects that are relevant to the user's favorites but have not accessed by the user yet. When the user wants to find these multimedia data once again, the semantic index facilitates text-based search for her.
  6. Zimmer, D.E.: Neues Leben für die Dicke : die Encyclopaedia Britannica geht on line - für sie eine Frage des Überlebens (1995) 0.14 
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    Date
    10. 1.1996 20:27:22
  7. Hotho, A.; Bloehdorn, S.: Data Mining 2004 : Text classification by boosting weak learners based on terms and concepts (2004) 0.13 
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    Content
    Vgl.: http://www.google.de/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&cad=rja&ved=0CEAQFjAA&url=http%3A%2F%2Fciteseerx.ist.psu.edu%2Fviewdoc%2Fdownload%3Fdoi%3D10.1.1.91.4940%26rep%3Drep1%26type%3Dpdf&ei=dOXrUMeIDYHDtQahsIGACg&usg=AFQjCNHFWVh6gNPvnOrOS9R3rkrXCNVD-A&sig2=5I2F5evRfMnsttSgFF9g7Q&bvm=bv.1357316858,d.Yms.
    Date
    8. 1.2013 10:22:32
  8. Malsburg, C. von der: ¬The correlation theory of brain function (1981) 0.13 
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    Abstract
    A summary of brain theory is given so far as it is contained within the framework of Localization Theory. Difficulties of this "conventional theory" are traced back to a specific deficiency: there is no way to express relations between active cells (as for instance their representing parts of the same object). A new theory is proposed to cure this deficiency. It introduces a new kind of dynamical control, termed synaptic modulation, according to which synapses switch between a conducting and a non- conducting state. The dynamics of this variable is controlled on a fast time scale by correlations in the temporal fine structure of cellular signals. Furthermore, conventional synaptic plasticity is replaced by a refined version. Synaptic modulation and plasticity form the basis for short-term and long-term memory, respectively. Signal correlations, shaped by the variable network, express structure and relationships within objects. In particular, the figure-ground problem may be solved in this way. Synaptic modulation introduces exibility into cerebral networks which is necessary to solve the invariance problem. Since momentarily useless connections are deactivated, interference between di erent memory traces can be reduced, and memory capacity increased, in comparison with conventional associative memory
    Source
    http%3A%2F%2Fcogprints.org%2F1380%2F1%2FvdM_correlation.pdf&usg=AOvVaw0g7DvZbQPb2U7dYb49b9v_
  9. Dick, S.J.: Astronomy's Three Kingdom System : a comprehensive classification system of celestial objects (2019) 0.13 
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    Abstract
    Although classification has been an important aspect of astronomy since stellar spectroscopy in the late nineteenth century, to date no comprehensive classification system has existed for all classes of objects in the universe. Here we present such a system, and lay out its foundational definitions and principles. The system consists of the "Three Kingdoms" of planets, stars and galaxies, eighteen families, and eighty-two classes of objects. Gravitation is the defining organizing principle for the families and classes, and the physical nature of the objects is the defining characteristic of the classes. The system should prove useful for both scientific and pedagogical purposes.
    Date
    21.11.2019 18:46:22
  10. Cherry, J.M.; Clinton, M.: ¬An experimental investigation of two types of instruction for OPAC users (1991) 0.12 
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    Abstract
    Reports an investigation into the feasibility of usinf tutorials to train students to use on-line public access catalogues (OPACs). The library developed instructional software which conveys a conceptual model of an on-line catalogue and how it works. Reports the results of an experiment conducted to compare the effectiveness of the computer tutorial and the standard introductory classroom lecture on using the OPAC at the University of Toronto
    Source
    Canadian journal of information science. 16(1991) no.4, S.2-22
  11. Townsel-Winston, M.: What's new in public services? (1992) 0.12 
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    Abstract
    OCLC has added 5 new databases to the FirstSearch catalogue and EPIC service: ContentsFirst, ArticleFirst, Social Sciences Index, General Science Index and Event-Line. DiscLit is available in a British literature version. DiscLit: British Authors is a CD-ROM tool for high school and college literature students. Announces winners of the OCLC on the Front Line Award and Database Magazine's Product of the year as Jane Bambrick and the Online Journal of Current Clinical Trials
    Source
    OCLC micro. 8(1992) no.6, S.21-22
  12. Vogt, F.; Wille, R.: TOSCANA - a graphical tool for analyzing and exploring data (1995) 0.12 
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    Abstract
    TOSCANA is a computer program which allows an online interaction with larger data bases to analyse and explore data conceptually. It uses labelled line diagrams of concept lattices to communicate knowledge coded in given data. The basic problem to create online presentations of concept lattices is solved by composing prepared diagrams to nested line diagrams. A larger number of applications in different areas have already shown that TOSCANA is a useful tool for many purposes
    Source
    Knowledge organization. 22(1995) no.2, S.78-81
  13. Nuttall, H.D.; McAbee, S.L.: Pathfinders on-line : adding pathfinders to a NOTIS on-line system (1997) 0.12 
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    Date
    27.11.1995 17:07:22
  14. Jackson, P.: ¬A thesaurus for enhanced geographic access (1991) 0.12 
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    Abstract
    Argues that geographic access in on-line catalogues could be improved by organising and structuring geographic data through the hierarchies of a thesaurus. The proposed thesaurus, based on geographic area codes and the DDC area tables, would incorporate geographic coordinate data, and would allow catalogue users to expand or refine a search by defined ares
    Source
    LASIE. 22(1991) no.3, S.49-60
  15. Verwer, K.: Freiheit und Verantwortung bei Hans Jonas (2011) 0.11 
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    Content
    Vgl.: http%3A%2F%2Fcreativechoice.org%2Fdoc%2FHansJonas.pdf&usg=AOvVaw1TM3teaYKgABL5H9yoIifA&opi=89978449.
  16. Fachsystematik Bremen nebst Schlüssel 1970 ff. (1970 ff) 0.11 
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    Content
    1. Agrarwissenschaften 1981. - 3. Allgemeine Geographie 2.1972. - 3a. Allgemeine Naturwissenschaften 1.1973. - 4. Allgemeine Sprachwissenschaft, Allgemeine Literaturwissenschaft 2.1971. - 6. Allgemeines. 5.1983. - 7. Anglistik 3.1976. - 8. Astronomie, Geodäsie 4.1977. - 12. bio Biologie, bcp Biochemie-Biophysik, bot Botanik, zoo Zoologie 1981. - 13. Bremensien 3.1983. - 13a. Buch- und Bibliothekswesen 3.1975. - 14. Chemie 4.1977. - 14a. Elektrotechnik 1974. - 15 Ethnologie 2.1976. - 16,1. Geowissenschaften. Sachteil 3.1977. - 16,2. Geowissenschaften. Regionaler Teil 3.1977. - 17. Germanistik 6.1984. - 17a,1. Geschichte. Teilsystematik hil. - 17a,2. Geschichte. Teilsystematik his Neuere Geschichte. - 17a,3. Geschichte. Teilsystematik hit Neueste Geschichte. - 18. Humanbiologie 2.1983. - 19. Ingenieurwissenschaften 1974. - 20. siehe 14a. - 21. klassische Philologie 3.1977. - 22. Klinische Medizin 1975. - 23. Kunstgeschichte 2.1971. - 24. Kybernetik. 2.1975. - 25. Mathematik 3.1974. - 26. Medizin 1976. - 26a. Militärwissenschaft 1985. - 27. Musikwissenschaft 1978. - 27a. Noten 2.1974. - 28. Ozeanographie 3.1977. -29. Pädagogik 8.1985. - 30. Philosphie 3.1974. - 31. Physik 3.1974. - 33. Politik, Politische Wissenschaft, Sozialwissenschaft. Soziologie. Länderschlüssel. Register 1981. - 34. Psychologie 2.1972. - 35. Publizistik und Kommunikationswissenschaft 1985. - 36. Rechtswissenschaften 1986. - 37. Regionale Geograpgie 3.1975. - 37a. Religionswissenschaft 1970. - 38. Romanistik 3.1976. - 39. Skandinavistik 4.1985. - 40. Slavistik 1977. - 40a. Sonstige Sprachen und Literaturen 1973. - 43. Sport 4.1983. - 44. Theaterwissenschaft 1985. - 45. Theologie 2.1976. - 45a. Ur- und Frühgeschichte, Archäologie 1970. - 47. Volkskunde 1976. - 47a. Wirtschaftswissenschaften 1971 // Schlüssel: 1. Länderschlüssel 1971. - 2. Formenschlüssel (Kurzform) 1974. - 3. Personenschlüssel Literatur 5. Fassung 1968
  17. Proffitt, M.: Pulling it all together : use of METS in RLG cultural materials service (2004) 0.11 
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    Abstract
    RLG has used METS for a particular application, that is as a wrapper for structural metadata. When RLG cultural materials was launched, there was no single way to deal with "complex digital objects". METS provides a standard means of encoding metadata regarding the digital objects represented in RCM, and METS has now been fully integrated into the workflow for this service.
    Source
    Library hi tech. 22(2004) no.1, S.65-68
  18. Johnson, E.H.: Using IODyne : Illustrations and examples (1998) 0.11 
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    Abstract
    IODyone is an Internet client program that allows one to retriev information from servers by dynamically combining information objects. Information objects are abstract representations of bibliographic data, typically titles (or title keywords), author names, subject and classification identifiers, and full-text search terms
    Date
    22. 9.1997 19:16:05
  19. Holetschek, J. et al.: Natural history in Europeana : accessing scientific collection objects via LOD (2016) 0.11 
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    Source
    Metadata and semantics research: 10th International Conference, MTSR 2016, Göttingen, Germany, November 22-25, 2016, Proceedings. Eds.: E. Garoufallou
  20. Harter, S.P.: Online information retrieval : concepts, principles, and techniques (1986) 0.10 
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    LCSH
    On / line bibliographic searching
    PRECIS
    On / line information retrieval / Techniques / Theories
    Subject
    On / line bibliographic searching
    On / line information retrieval / Techniques / Theories

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