Search (1422 results, page 1 of 72)

  • × year_i:[2000 TO 2010}
  1. Subramanian, S.; Shafer, K.E.: Clustering (2001) 0.10 
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    Date
    5. 5.2003 14:17:22
    Footnote
    Teil eines Themenheftes: OCLC and the Internet: An Historical Overview of Research Activities, 1990-1999 - Part II
  2. Lavoie, B.F.; O'Neill, E.T.: How "World Wide" Is the Web? : Trends in the Internationalization of Web Sites (2001) 0.08 
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    Date
    7.10.2002 9:22:14
    Footnote
    Teil eines Themenheftes: OCLC and the Internet: An Historical Overview of Research Activities, 1990-1999 - Part II
  3. Hotho, A.; Bloehdorn, S.: Data Mining 2004 : Text classification by boosting weak learners based on terms and concepts (2004) 0.07 
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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
  4. Arntz, R.; Picht, H.; Mayer, F.: Einführung in die Terminologiearbeit (2004) 0.06 
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    Classification
    GN 9999 Germanistik. Niederlandistik. Skandinavistik / Deutsche Literatur / Moderne II: 1946 - 1990 / Literaturgeschichte / Einzelne Autoren / Sonstige
    Date
    22. 4.2007 12:13:14
    RVK
    GN 9999 Germanistik. Niederlandistik. Skandinavistik / Deutsche Literatur / Moderne II: 1946 - 1990 / Literaturgeschichte / Einzelne Autoren / Sonstige
  5. Mingers, J.; Burrell, Q.L.: Modeling citation behavior in Management Science journals (2006) 0.05 
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    Abstract
    Citation rates are becoming increasingly important in judging the research quality of journals, institutions and departments, and individual faculty. This paper looks at the pattern of citations across different management science journals and over time. A stochastic model is proposed which views the generating mechanism of citations as a gamma mixture of Poisson processes generating overall a negative binomial distribution. This is tested empirically with a large sample of papers published in 1990 from six management science journals and found to fit well. The model is extended to include obsolescence, i.e., that the citation rate for a paper varies over its cited lifetime. This leads to the additional citations distribution which shows that future citations are a linear function of past citations with a time-dependent and decreasing slope. This is also verified empirically in a way that allows different obsolescence functions to be fitted to the data. Conclusions concerning the predictability of future citations, and future research in this area are discussed.
    Date
    26.12.2007 19:22:05
  6. Fugmann, R.: Obstacles to progress in mechanized subject access and the necessity of a paradigm change (2000) 0.04 
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    Abstract
    Contemporary information systems, both the private and the commercially available ones, have often been blamed for their low effectiveness in terms of precision and recall, especially when they have reached considerable size with respect to file volume and use frequency (see, for example, Belkin, 1980; Blair, 1996, p.19; Desai, 1997; Drabenstott, 1996; Knorz, 1998). Saracevic (1989), after having reviewed the contemporary design of online subject access, calls "for radically different design principles and implementation" (p. 107). Van Rijsbergen (1990) writes: "The keywords approach with statistical techniques has reached its theoretical limit and further attempts for improvement are considered a waste of time" (p. 111). Lancaster (1992) deplores that very little really significant literature an subject indexing has been published in the last thirty or so years. In her preface to the Proceedings of the Sixth International Study Conference an Classification Research in 1997, Mcllwaine (1997) writes, "many were surprised to find that the problems with which they wrestle today are not greatly different from those that have been occupying the minds of specialists in the field for over a generation, and probably a great deal longer" (p. v).
    Date
    22. 9.1997 19:16:05
  7. Jouis, C.: Logic of relationships (2002) 0.04 
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    Abstract
    A main goal of recent studies in semantics is to integrate into conceptual structures the models of representation used in linguistics, logic, and/or artificial intelligence. A fundamental problem resides in the need to structure knowledge and then to check the validity of constructed representations. We propose associating logical properties with relationships by introducing the relationships into a typed and functional system of specifcations. This makes it possible to compare conceptual representations against the relationships established between the concepts. The mandatory condition to validate such a conceptual representation is consistency. The semantic system proposed is based an a structured set of semantic primitives-types, relations, and properties-based an a global model of language processing, Applicative and Cognitive Grammar (ACG) (Desc16s, 1990), and an extension of this model to terminology (Jouis & Mustafa 1995, 1996, 1997). The ACG postulates three levels of representation of languages, including a cognitive level. At this level, the meanings of lexical predicates are represented by semantic cognitive schemes. From this perspective, we propose a set of semantic concepts, which defines an organized system of meanings. Relations are part of a specification network based an a general terminological scheure (i.e., a coherent system of meanings of relations). In such a system, a specific relation may be characterized as to its: (1) functional type (the semantic type of arguments of the relation); (2) algebraic properties (reflexivity, symmetry, transitivity, etc.); and (3) combinatorial relations with other entities in the same context (for instance, the part of the text where a concept is defined).
    Date
    1.12.2002 11:12:22
  8. Chen, C.: CiteSpace II : detecting and visualizing emerging trends and transient patterns in scientific literature (2006) 0.04 
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    Abstract
    This article describes the latest development of a generic approach to detecting and visualizing emerging trends and transient patterns in scientific literature. The work makes substantial theoretical and methodological contributions to progressive knowledge domain visualization. A specialty is conceptualized and visualized as a time-variant duality between two fundamental concepts in information science: research fronts and intellectual bases. A research front is defined as an emergent and transient grouping of concepts and underlying research issues. The intellectual base of a research front is its citation and co-citation footprint in scientific literature - an evolving network of scientific publications cited by research-front concepts. Kleinberg's (2002) burst-detection algorithm is adapted to identify emergent research-front concepts. Freeman's (1979) betweenness centrality metric is used to highlight potential pivotal points of paradigm shift over time. Two complementary visualization views are designed and implemented: cluster views and time-zone views. The contributions of the approach are that (a) the nature of an intellectual base is algorithmically and temporally identified by emergent research-front terms, (b) the value of a co-citation cluster is explicitly interpreted in terms of research-front concepts, and (c) visually prominent and algorithmically detected pivotal points substantially reduce the complexity of a visualized network. The modeling and visualization process is implemented in CiteSpace II, a Java application, and applied to the analysis of two research fields: mass extinction (1981-2004) and terrorism (1990-2003). Prominent trends and pivotal points in visualized networks were verified in collaboration with domain experts, who are the authors of pivotal-point articles. Practical implications of the work are discussed. A number of challenges and opportunities for future studies are identified.
    Date
    22. 7.2006 16:11:05
  9. Schrodt, R.: Tiefen und Untiefen im wissenschaftlichen Sprachgebrauch (2008) 0.04 
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    Content
    Vgl. auch: https://studylibde.com/doc/13053640/richard-schrodt. Vgl. auch: http%3A%2F%2Fwww.univie.ac.at%2FGermanistik%2Fschrodt%2Fvorlesung%2Fwissenschaftssprache.doc&usg=AOvVaw1lDLDR6NFf1W0-oC9mEUJf.
  10. Cleveland, D.B.; Cleveland, A.D.: Introduction to abstracting and indexing (2001) 0.04 
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    Classification
    Z695.9.C592 1990
    LCC
    Z695.9.C592 1990
  11. RAK-NBM : Interpretationshilfe zu NBM 3b,3 (2000) 0.03 
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    Date
    22. 1.2000 19:22:27
  12. Diederichs, A.: Wissensmanagement ist Macht : Effektiv und kostenbewußt arbeiten im Informationszeitalter (2005) 0.03 
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    Date
    22. 2.2005 9:16:22
  13. Hawking, D.; Robertson, S.: On collection size and retrieval effectiveness (2003) 0.03 
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    Date
    14. 8.2005 14:22:22
  14. Qin, J.: Evolving paradigms of knowledge representation and organization : a comparative study of classification, XML/DTD and ontology (2003) 0.03 
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    Abstract
    The different points of views an knowledge representation and organization from various research communities reflect underlying philosophies and paradigms in these communities. This paper reviews differences and relations in knowledge representation and organization and generalizes four paradigms-integrative and disintegrative pragmatism and integrative and disintegrative epistemologism. Examples such as classification, XML schemas, and ontologies are compared based an how they specify concepts, build data models, and encode knowledge organization structures. 1. Introduction Knowledge representation (KR) is a term that several research communities use to refer to somewhat different aspects of the same research area. The artificial intelligence (AI) community considers KR as simply "something to do with writing down, in some language or communications medium, descriptions or pictures that correspond in some salient way to the world or a state of the world" (Duce & Ringland, 1988, p. 3). It emphasizes the ways in which knowledge can be encoded in a computer program (Bench-Capon, 1990). For the library and information science (LIS) community, KR is literally the synonym of knowledge organization, i.e., KR is referred to as the process of organizing knowledge into classifications, thesauri, or subject heading lists. KR has another meaning in LIS: it "encompasses every type and method of indexing, abstracting, cataloguing, classification, records management, bibliography and the creation of textual or bibliographic databases for information retrieval" (Anderson, 1996, p. 336). Adding the social dimension to knowledge organization, Hjoerland (1997) states that knowledge is a part of human activities and tied to the division of labor in society, which should be the primary organization of knowledge. Knowledge organization in LIS is secondary or derived, because knowledge is organized in learned institutions and publications. These different points of views an KR suggest that an essential difference in the understanding of KR between both AI and LIS lies in the source of representationwhether KR targets human activities or derivatives (knowledge produced) from human activities. This difference also decides their difference in purpose-in AI KR is mainly computer-application oriented or pragmatic and the result of representation is used to support decisions an human activities, while in LIS KR is conceptually oriented or abstract and the result of representation is used for access to derivatives from human activities.
    Date
    12. 9.2004 17:22:35
  15. Bibliothek leben : Das deutsche Bibliothekswesen als Aufgabe für Wissenschaft und Politik. Eine Festschrift für Engelbert Plassmann zum 70. Geburtstag (2005) 0.03 
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    Content
    Enthält die Beiträge: Retrospektiven Hans-Michael Schäfer: "Warum baut ein Privatmann eine Bibliothek" - Die Bibliothek Warburg inmitten der preußisch dominierten Bibliothekslandschaft zu Beginn des 20. Jahrhunderts; Horst Röhling: Slavica und Universales im wissenschaftlich-politischen und anthropologischen Kontext der Bibliothek; Dale Askey: Bibliothekstourismus zwischen Deutschland und den Vereinigten Staaten; Hans-Christoph Hobohm: Bibliothek als Zensur; Günter Pflug: Die Ausbildung des höheren Bibliotheksdienstes nach dem Zweiten Weltkrieg; Konrad Umlauf: Bibliotheksentwicklungsplanung 1966 bis 1973 und Bibliotheken 2007; Hans Joachim Meyer: Kontinuität und Neubeginn - Sächsische Bibliothekspolitik nach 1990; Siegfried Schmidt: Eine verpaßte Gelegenheit? - Gründe und Hintergründe zur Schließung der Fachhochschule für das öffentliche Bibliothekswesen Bonn; Walther Umstätter: Bibliothekswissenschaft im Spannungsfeld von Bibliotheksgeschichte, Nationalökonomie des Geistes und Informatik; Helmut Jüngling: Themen à la mode -Versuch einer informetrischen Analyse informationswissenschaftlicher Datenbanken; Perspektiven Wolfgang Schmitz: "Gemeinsam können wir viel bewirken" - Die gemeinsamen Fachbibliotheken von USB und Instituten an der Universität zu Köln; Jürgen Hering: Vier Buchstaben und etwas Farbe - Zum Erscheinungsbild der SLUB in der Öffentlichkeit; Ludger Syré: Haben Regionalbibliotheken eine Zukunft? - Zeitgemäße Betrachtungen zu einem scheinbar unzeitgemäßen Bibliothekstyp; Gudrun Behm-Steidel: Spezialbibliotheken in Deutschland - Nische im Bibliothekswesen oder Vorreiter im Informationsmanagement?; Regina Peeters: Auf der Kuhstraße zur Weltliteratur oder: Jedes Lesen ist Übersetzen; Holger Knudsen: Die International Association of Law Libraries (IALL); Torsten Seela: Bibliotheken und Museen als Informationsdienstleister -Konvergenzen und Divergenzen; Christian Uhlig: Buchhandel und Bibliotheken - Konfrontation oder Kooperation?; Reimar Riese: Macht unsere Bücher preiswerter! - Die Preiswürdigkeit von Büchern im Meinungsbild ihrer Konsumenten; Gerhard Hacker: Die Hybridbibliothek - Blackbox oder Ungeheuer?; Jürgen Seefeldt: Die Zukunft der Bibliothek - die Bibliothek der Zukunft: Visionen, Traumschlösser, Realitäten
    Date
    22. 3.2008 17:48:07
  16. Buzydlowski, J.W.; White, H.D.; Lin, X.: Term Co-occurrence Analysis as an Interface for Digital Libraries (2002) 0.03 
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    Date
    22. 2.2003 17:25:39
    22. 2.2003 18:16:22
  17. Vetere, G.; Lenzerini, M.: Models for semantic interoperability in service-oriented architectures (2005) 0.03 
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    Content
    Vgl.: http://ieeexplore.ieee.org/xpl/login.jsp?tp=&arnumber=5386707&url=http%3A%2F%2Fieeexplore.ieee.org%2Fxpls%2Fabs_all.jsp%3Farnumber%3D5386707.
  18. Weibel, S.L.: Capturing Tables of Contents : Pilot Study (2001) 0.03 
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    Footnote
    Teil eines Themenheftes: OCLC and the Internet: An Historical Overview of Research Activities, 1990-1999 - Part I
  19. Vizine-Goetz, D.: Classification Research at OCLC (2001) 0.03 
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    Footnote
    Teil eines Themenheftes: OCLC and the Internet: An Historical Overview of Research Activities, 1990-1999 - Part I
  20. Shafer, K.E.: Manipulating Tagged text (2001) 0.03 
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    Footnote
    Teil eines Themenheftes: OCLC and the Internet: An Historical Overview of Research Activities, 1990-1999 - Part I

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