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  • × type_ss:"m"
  • × year_i:[1990 TO 2000}
  1. Ingwersen, P.: Information retrieval interaction (1992) 0.04 
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    Footnote
    Rez. in: Library and information research news. 16(1993) no.56, S.26-27 (J. Palmer); Journal of documentation 50(1994) no.2, S.142-144 (P. Willett); Australian academic and research libraries 1993, Sept., S.239-240 (C. Wilson)
  2. (Sears') List of Subject Headings (1994) 0.03 
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    Content
    Vorgänger: 'List of Subject Headings for small libraries, compiled from lists used in nine representative small libraries', Ed.: M.E. Sears. - 1st ed. 1923. - 2nd ed. 1926 .- 3rd ed. 1933. - 4th ed. 1939. - 5th ed. 1944. // 'Sears List of Subject Headings'. Ed.: B.M. Frick. - 6th ed. 1950. - 7th ed. 1954 - 8th ed. 1959. // 'List of Subject Headings'. Ed.: B.M. Wesby. - 9th. ed. 1965. - 10th ed. 1972. - 11th ed. 1977. - 12th ed. 1982. Ed.: C. Rovira u. C. Reyes. - 13th ed. 1986. - 14th ed. 1991. Ed. M.T. Mooney
    Footnote
    Rez. in: Knowledge organization 22(1995) no.1, S.45-46 (M.P. Satija)
  3. Otlet, P.: International organisation and dissemination of knowledge : selected essays of Paul Otlet (1990) 0.03 
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    Date
    8. 3.2008 13:42:22
  4. Calvin, W.H.; Ojemann, G.A.: Einsicht ins Gehirn : wie Denken und Sprache entsteht (1995) 0.03 
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    Date
    22. 7.2000 18:41:04
    Footnote
    Rez. in: Frankfurter Rundschau Nr.23 vom 27.1.1996, S.ZB4 (P. Kruntorad); Spektrum der Wissenschaft 1996, H.3, S.116 (G. Wolf)
  5. Kleinschmidt, P.; Rank, C.: Relationale Datenbanksysteme : eine praktische Einführung (1997) 0.03 
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  6. Towney, C.; Barclay, D.A.: Teaching electronic information literacy : a how-to-do-it manual (1995) 0.03 
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    Footnote
    Rez. in: College and research libraries news 57(1996) no.5, S.311 (G.M. Eberhart); Journal of acaedemic librarianship 22(1996) no.5, S.401 (J.K. Chisman)
  7. Ellis, D.: Progress and problems in information retrieval (1996) 0.03 
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    Date
    26. 7.2002 20:22:46
    Footnote
    Rez. in: Managing information 3(1996) no.10, S.49 (D. Bawden); Program 32(1998) no.2, S.190-192 (C. Revie)
  8. Organisation des connaissances en vue de leur intégration dans les systèmes de représentation et de recherche d'information (1999) 0.03 
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    Content
    Enthält die Beiträge: ABRAHAM, M.: ALEx, la machine où parler, c'est montrer des représentations. AUSSENAC-GILLES, N., A. CONDAMINES: Bases de connaissances terminologiques: Enjeux pour la consultation documentaire. BONHOMME, P., L. ROMARY: Apport de la statistique lexicale dans la recherche d'information. BRASSART, D.-G.: Effet de l'opposition "nom pleine vs anaphore" sur le traitment des textes épistémiques. CHEVALLET, J.-P., M.F. BRUANDET: Impact de l'utilisation de multi terms sur la qualité des résponses dùn système de recherche d'information a indexation automatique. CHIBOUT, K., A. VILNAT: Primitive sémantiques, classification des verbes et polysémie. COTE, C.: Conception de systèmes d'information utilisé dans le cours d'une activité: méthologie et outils de formalisation pour l'identification des opportunités informationelles. DACHELET, R.: Les thésauri multilingues: interopérabilité linguistique et interopérabilité sémantique. DAVID, A.A.: Modélisation de l'utilisateur et recherche coopérative dans les systèmes de recherche d'information. EYMARD, G., J.-M. FRANCONY: Vers un serveur d'indexation et de recherche sur le WEB. FERRET, O., B. GRAU U. N. MASSON: Utilisation d'un réseau de cooccurences lexikales pour a méliorer une analyse thématique fondée sur la distribution des mots. GROS, C., H. ASSADI: Intégration de connaissances dans un système de consultation de documentation technique. KOLMAYER, E.: Organisation des connaissances et expertises chez les usagers. MAJID, I.: L'organisation des connaissances dans les bibliothèques universitaires en France. MARANDA, P.: Proposition de mesure de puissance sémantique. MEUNIER, J.-G.: Vers un modèle générique des systèmes de traitment d'information. PAGANELLI, C.: Étude de l'activité des utilisaterus erepérage d'indices linguistiques pour la recherche d'information textuelle dans les documents techniques. POLANCO, X.: Extraction et modélisation des connaissances: une approche et ses technologies (EMCAT). POLITY, Y.: L'organisation des connaissances en France: état des lieux. SCHMITZ-ESSER, W.: Modélisation, au moyen d'un thésaurus encyclopédique et plurilingue, des connaissances présentées au cours de l'Exposition Mondialede l'an 2000. SIMONI, J.-L., C. FLUHR: Accès a l'information a travers les graphes de termes. TCHENAR, F.: Modélisation de l'utilisateur fondée sur ses croyances et ses buts en vue d'améliorer l'efficacité des sytèmes de recherche d'information. VAZOV, N.: Identification des differentes structures temporelles dans des textes et leur rôles dans le raisonnement temporel. VIDALENC, I., L. BOUZIDI: Nouvelle approche de conception de systèmes d'information multimédias centrée sur la distinction entre les données conceptuelles et les données sensibles. VIEIRA, L.: Modèle d'analyse pur une classification du document iconographique. ZARRI, G.P.: Utilisation de structures conceptuelles complexes pour représenter le "contenu sémantique" de textes narratifs.
  9. Online-Datenbanken - CD-ROM-Datenbanken : Trends und Qualitätskriterien. Tagungsberichte vom 4. und 5. Österreichischen Online-Informationstreffen, Schloß Hofen, Lochau bei Bregenz, 17.-20. September 1991, Schloß Seggau, Seggauberg bei Leibnitz, 14.-17.September 1993 (1997) 0.03 
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    Content
    Enthält u.a. folgende Beiträge: CAZAN, C.: Beyond Online; MAYERL, L.: Aspekte EDV-unterstützter Information in Bibliotheken; HILPERT, W.: Gestaltung der Informationsvermittlung an einer technischen Universität; RANZ, F.: Hypertext in Großdatenbanken am Beispiel Hyperline von ESA; ZEGER, H.G.: Informationsorganisation: Die Verknüpfung von Bild, Ton und Text am Beispiel des Datenbank-Management-Systems STAR; BUCKEL, W.: Numerische Datenbanken in Naturwissenschaft und Technik; BURGSTALLER, F.: 'Infosearch': Das Datenbankservice der oberösterreichischen Nachrichten; MEGNER, K.: Fremddatennutzung bei der maschinellen Erstellung einer Bibliographie (Österreichische Bibliographie, Reihe C: Neuere ausländische Austriaca); WOLFF, R.: Vereinfachung der Nutzung von Online-Datenbanken durch gezielten Einsatz von Kommunikationssoftware; KEMPF, A.: Auf Informationssuche in Wissenschaftsnetzen: ein Erfahrungsbericht zum Thema Wald; NEVYJEL, A.: Qualitätssicherung beim Datenbankaufbau: Qualitätssicherungsmaßnahmen des Forschungszentrums Seibersdorf beim Aufbau internet und externer Datenbanken; LÜCK, W.: Qualität von bibliographischen Datenbanken: Die Datenbank PHYS; HAIDER, R.: Qualität der Datenaufbereitung: ein Garant für optimale Information? MÜLLER-BADER, P.: Kooperative Qualitätssicherung eines Wirtschaftshosts; HERHOLDT, A.: EMBASE und CD-ROM; WINKLER, U. u. F. KLEMM: Österreichische historische Bibliographie (ÖHB): Die drei Repräsentationsformen Bibliographie - Online - CD-ROM; BERNHART, I.: Qualität von Online-Datenbanken aus Nutzersicht; KOSTOLANYI, P.: Some comments on the concept of database quality; ZASS, E.: Qualität und Benutzerfreundlichkeit: Erfahrungen mit chemie-relevanten Datenbanken; MÜLLER, I.S Das Rechtsinformationssystem des Bundes (RIS) aus der Sicht des Anwenders; GREINER, G.: Zugang zu Datenbanken über BTX und Einbindung von BTX-Dienstleistungen in Informationssysteme; LANG, W.: Einfache Benutzeroberfläche und komplexe Datenbankstruktur: unvereinbare Gegensätze oder gegenseitige Voraussetzung? BERTHA, E.: Vom Zitat zum Original: Überlegungen zur automatischen Auswertung von Quellenangaben
  10. (Sears') List of Subject Headings (1997) 0.03 
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    Content
    Vorgänger: 'List of Subject Headings for small libraries, compiled from lists used in nine representative small libraries', Ed.: M.E. Sears. - 1st ed. 1923. - 2nd ed. 1926. - 3rd ed. 1933. - 4th ed. 1939, Ed.: I.S. Monro. - 5th ed. 1944: 'Sears List of Subject Headings', Ed. I. S. Monro. - 6th ed. 1950, Ed.: B.M. Frick. - 7th ed. 1954 - 8th ed. 1959. - 'List of Subject Headings'. - 9th. ed. 1965, Ed.: B.M. Westby. - 10th ed. 1972. - 11th ed. 1977. - 12th ed. 1982. - 13th ed. 1986, Ed.: C. Rovira u. C. Reyes. - 14th ed. 1991. Ed. M.T. Mooney. - 15th ed. 1994, Ed.: J. Miller // Rez. 15th ed.: Knowledge organization 22(1995) no.1, S.45-46 (M.P. Satija)
  11. Structures and relations in knowledge organization : Proceedings of the 5th International ISKO-Conference, Lille, 25.-29.8.1998 (1998) 0.03 
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    SCHMITZ-ESSER, W.: Defining the conceptual space for a world exhibition - first experiences; SOLOMON. P.: On the use of research categorizations as the basis for organizing knowledge: a test in the domain of information behavior in health care; BEAN, C.: The semantics of hierarchy: explicit parent-child relationships in MeSH tree structures; HUDON, M.: A preliminary investigation of the usefulness of semantic relations and of standardized definitions for the purpose of specifying meaning in a thesaurus; JOUIS, C.: System of types + inter-concept relations properties: towards validation of constructed terminologies; HETZLER, B. et al.: Visualizing the full spectrum of document relationships; GREEN, R.: Attribution and relationality; KOLMAYER, E. et al.: Conceptual maps: users navigation trough paradigmatic and syntagmatic links; NAKAMURA, Y.: Subdivisions vs. conjunctions: a discussion on concept theory; DAHLBERG, I.: Classification structure principles: investigations, experiences, conclusions; FROISSART, C. u. G. LALLICH-BOIDIN: Towards structuring of indexing vocabulary for large technical documents; MOUNIER, E. u. C. PAGANELLI: Text structure and information retrieval in large documents; LAROUK, O.: Modelling users need: schemas of interrogation and filtering of answers from the WEB in co-operative mode; VILADENC, I. u. O.DUPONT: Knowledge transfer in the field of telematics, in a didactic communicational context realized with hypermedia support; WILLIAMSON, N.: An interdisciplinary world and discipline based classification; BEGHTOL, C.: General classification systems: structural principles for multidisciplinary specification; McILWAINE, I.: Knowledge classifications, bibliographic classifications and the Internet;
    OLSON, H.A. u. D.B. WARD: Charting a journey across knowledge domains: feminism in the Dewey Decimal Classification; RIESTHUIS, G.J.A.: Decomposition of UDC-numbers and the text of the UDC Master Reference File; MEO-EVOLI, L. u.a.: ICC and ICS: comparison and relations between two systems based on different principles; BARTOLO, L.M. et al.: The ALCOM/NIST heterogeneous structures database: knowledge structure for basic and applied research in an interdisciplinary scientific collaboration; BOWKER, L.: Peering through the linguistic keyhole: what can term choice tell us about knowledge organization?; ROUAULT, J.: About abuctive reasoning; GRUSELLE, J.-P.: A cognitive sciences system for symbol grounding; BEEBE, C. u. E.K. JACOB: Graphic language documents: structures and functions; METZGER, J.-P.: Information systems and professional activities; MUSTAFA EL-HADI, W.: Automatic term recognition & extraction tools: examining the new interfaces and their effective communication role in LSP discourse;
    POLLITT, S.A.: The application of Dewey Classification in a view-based searching OPAC; PRISS, U.: A graphical interface for conceptually navigating faceted thesauri; VIZINE-GOETZ, D.: Dewey as an Internet subject guide; RAHMSTORF, G.: Concept structures for large vocabularies; AKAICHI, J. u. G. LOSFELD: Domain knowledge organization for encyclopedic design: an object oriented approach; GARCIA MARCO, F.J. u. AGUSTIN LACRUZ, C.: Cognitive models in pictorial image retrieval; GOODRUM, A.A.: A cognitive approach to representing moving image documents; WALT, M. van: The structure of classification schemes used in Internet search engines; KENT, R.E.: Organizing conceptual knowledge online: metadata interoperability and faceted classification; HOWARTH, L.C.: Metadata structure and user preferences: designing user-focused knowledge access systems; LUCAS, H.: Representing WWW navigational data: a graphical methodology to support qualitative analysis; GRUSELLE, J.-P.: Two modes of automated domain analysis: multidimensional scaling vs. Kohonen feature mapping of information science authors
  12. Hjoerland, B.: Information seeking and subject representation : an activity-theoretical approach to information science (1997) 0.02 
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    Footnote
    Rez. in: nfd 49(1998) H.1, S.59-60 (G. Wersig), Erwiderung des Autors darauf in nfd: 49(1998) H.2, S.122-126; JASIS 49(1998) no.11, S.1043 (C. Chen); College and research libraries 59(1998) no.3, S.287-288 (P. Wilson)
  13. Horn, T.: Einführung in die Programmiersprache C (1992) 0.02 
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    Abstract
    Kurs zur Programmiersprache C mit Hilfe von TOOLBOOK
    Object
    C
  14. Readings in information retrieval (1997) 0.02 
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    Content
    JOYCE, T. u. R.M. NEEDHAM: The thesaurus approach to information retrieval; LUHN, H.P.: The automatic derivation of information retrieval encodements from machine-readable texts; DOYLE, L.B.: Indexing and abstracting by association. Part 1; MARON, M.E. u. J.L. KUHNS: On relevance, probabilistic indexing and information retrieval; CLEVERDON, C.W.: The Cranfield test on index language devices; SALTON, G. u. M.E. LESK: Computer evaluation of indexing and text processing; HUTCHINS, W.J.: The concept of 'aboutness' in subject indexing; CLEVERDON, C.W. u. J. MILLS: The testing of index language devices; FOSKETT, D.J.: Thesaurus; DANIELS, P.J. u.a.: Using problem structures for driving human-computer dialogues; SARACEVIC, T.: Relevance: a review of and a framwork for thinking on the notion in information science; SARACEVIC, T. u.a. A study of information seeking and retrieving: I. Background and methodology; COOPER, W.S.: On selecting a measure of retrieval effectiveness, revisited; TAGEU-SUTCLIFFE, J.: The pragmatics of information retrieval experimentation, revisited; KEEN, E.M.: Presenting results of experimental retrieval comparisons; LANCASTER, F.W.: MEDLARS: report on the evaluation of its operating efficiency; HARMAN, D.K.: The TREC conferences; COOPER, W.S.: Getting beyond Boole; RIJSBERGEN, C.J. van: A non-classical logic for information retrieval; SALTON, G. u.a.: A vector space model for automatic indexing; ROBERTSON, S.E.: The probability ranking principle in IR; TURTLE, H. u. W.B. CROFT: Inference networks for document retrieval; BELKIN, N.J. u.a.: Ask for information retrieval: Part 1. Background and theory; PORTER, M.F.: Am algortihm for suffix stripping; SALTON, G. u. C. BUCKLEY: Term-weighting approaches in automatic text retrieval; SPRACK JONES, K.: Search term relevance weighting given little relevance information; CROFT, W.B. u. D.J. HARPER: Using probabilistic models of document retrieval without relevance information; ROBERTSON, S.E. u. S. WALKER: Some simple effective approximations to the 2-poisson model for probabilistic weighted retrieval; SALTON, G. u. C. BUCKLEY: Improving retrieval performance by relevance feedback; GRIFFITHS, A. u.a.: Using interdocument similarity information in document retrieval systems; SALTON, G. u. M.J. McGILL: The SMART and SIRE experimental retrieval systems; FOX, E.A. u. R.K. FRANCE: Architecture of an expert system for composite analysis, representation, and retrieval; HARMAN, D.: User-friendly systems instead of user-friendly front ends; WALKER, S.: The Okapi online catalogue research projects; CALLAN, J. u.a.: TREC and TIPSTER experiments with INQUERY; McCUNE, B. u.a.: RUBRIC: a system for rule-based information retrieval; TENOPIR, C. u. P. CAHN: TARGET and FREESTYLE: DIALOG and Mead join the relevance ranks; AGOSTI, M. u.a.: A hypertext environment for interacting with large databases; HULL, D.A. u. G. GREFENSTETTE: Querying across languages: a dictionary-based approach to multilingual information retrieval; SALTON, G. u.a.: Automatic analysis, theme generation, and summarization of machine-readable texts; SPARCK JONES, K. u.a.: Experiments in spoken document retrieval; ZHANG, H.J. u.a.: Video parsing, retrieval and browsing: an integrated and cantent-based solution; BIEBRICHER, N. u.a.: The automatic indexing system AIR/PHYS: from research to application; STRZALKOWSKI, T.: Robust text processing in automated information retrieval; HAYES, P.J. u.a.: A news story categorization system; RAU, L.F.: Conceptual information extraction and retrieval from natural language input; MARSH, E.: A production rule system for message summarisation; JOHNSON, F.C. u.a.: The application of linguistic processing to automatic abstract generation; SWANSON, D.R.: Historical note: information retrieval and the future of an illusion
    Editor
    Sparck Jones, K. u. P. Willett
  15. Exploring the contexts of information behaviour : Proceedings of the 2nd International Conference on Research in Information Needs, Seeking and Use in Different Contexts, 13-15 August 1998, Sheffield, UK (1999) 0.02 
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    Content
    Enthält u.a. die Beiträge: INTRONA, L.D.: Context, power, bodies and information: exploring the 'entangled' contexts of information; JACOB, E.K. u.a.: When essence becomes function: post-structuralist implications for an ecological theory of organizational classification systems; MALMSJO, A.: Conditions for designing different kinds of information systems; JULIEN, H.: Where to from here? Results of an emprical study and user-centred implications for system design; VAKKARI, P.: Task complexity, information types, search strategies and relevance: integrating studies on information seeking and retrieval; SPINK, A.: Towards a theoretical framework for information retrieval in an information seeking context; KUHLTHAU, C.C.: Investigating patterns in information seeking; concepts in context; BREZILLON, P. u.a.: Modeling context in information seeking; BYSTROM, K.: Information seekers in context: an analysis of the 'doer' in INSU studies; AUDUNSON, R.: Can institutional theory contribute to our understanding of information seeking behaviour?; SONNENWALD, D.H.: Evolving perspectives of human information behaviour: conexts, situations, social networks and information horizons; OLSSON, M.: Discourse: a new theoretical framework for examining information behaviour in its social context; KEANE, D.: The information behaviour of senior executives; LIMBERG, L.: Three conceptions of information seeking and use; PRESTON, H. u.a.: An evaluation of case study methodology within information system research; WILSON, T.D.: Exploring models of information behaviour: the 'uncertainty' project; ENNIS, M. u.a.: Towards a predictive model of information seeking: empirical studies of end-user searching; SOLOMON, P.: Information mosaics: patterns of action that structure; TOMS, E.G.: What motivates the browser? ABAD-GARCIA, M.F.: Information needs of physicians at the University Clinic Hospital in Valencia-Spain: GORMAN, P.: Information seeking of primary care physicians: conceptual models and empirical studies; LOMAX, E.C. u.a.: An investigation of the information seeking behavior of medical oncologists in Metropolitan Pittsburgh using a multi-method approach; PETTIGREW, K.E.: Agents of information: the role of community health nurses in linking the elderly with local resources by providing human services information; URQUHART, C.J.: Using vignettes to diagnose information strategies: opportunities and possible problems for information use studies of health professionals; WILDEMUTH, B.M. u.a.: The transition from formalized need to compromised need in the context of clinical problem solving; MARCELLA, R. u. G. BAXTER: The transition from formalized need to compromised need in the context of clinical problem solving; COLES, C.: Information seeking behaviour of public library users: use and non-use of electronic media; GREEN, A.-M. u. E. DAVENPORT: Putting new media in its place: the Edinburgh experience; ROSS, C.S.: Finding without seeking: what readers say about the role of pleasure-reading as a source of information; SAVOLAINEN, R.: Seeking and using information from the Internet: the context of non-work use; SPINK, A. u.a.: Everyday life information-seeking by low-income African American households: Wynnewood Healthy Neighbourhood Project; DIXON, P. u. L. BANWELL: School governors and effective dicision making; COOPER, L. u. C.C. KUHLTHAU: Imagery for constructing meaning in the information search process: a study of middle school students; FABRITIUS, H.: Triangulation as a multiperspective strategy in a qualitative study of information seeking behaviour of journalists; JOHINSTON, S.: Training for the information economy: a study of the information culture of a graduate business school; NICHOLAS, D. u. P. WILLIAMS: The changing information environment: the impact of the Internet on information seeking behaviour in the media; WIJNGAERT, L. van de: A policy capturing study of media choice: the effect information of needs and user characteristics on media choices; FETZER, A.: Validity claims: assigning contextual information; FOSTER, A.: On the interpretative authority of information systems; MUTCH, A.: Information: a critical realist approach; PERRY, M.: Process, representation and taskworld: distributed cognition and the organisation of information; HUOTARI, M.-L.: Social network analysis as a tool to evaluate IM in the public sector: a pilot study at the University of Tampere
  16. Klau, P.: Internet Adressbuch (1995) 0.02 
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  17. Janich, P.: Ist Information ein Naturgegenstand? : Menschliches Handeln als Ursprung des Informationsbegriffes (1992) 0.02 
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    Source
    Janich, P.: Die Grenzen der Naturwissenschaft: Erkennen als Handeln
  18. Bradley, P.: UKOLUG quick guide to the Internet (1995) 0.02 
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    Footnote
    Rez. in: TIP applications 9(1995/96) nos.6/7, S.14-15 (P. Gillman)
  19. Advances in librarianship (1998) 0.02 
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    Issue
    Vol.22.
    Signature
    78 BAHH 1089-22
  20. Delahaye, J.-P.: PI: Die Story (1999) 0.02 
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    Abstract
    Der berühmte Physiker Richard P. Feynman sagte einmal: "In einem Glas Wein steckt das ganze Universum". Die ganze Mathematik steckt dagegen, so könnte man nach der Lektüre von Pi, die Story von Jean-Paul Delahaye meinen, in der Zahl Pi. Tatsache: Was den Physikern ihr Doppelspaltexperiment, ist dem Mathematiker die Kreiszahl -- eigentlich sollte sie nur das Verhältnis zwischen Umfang und Durchmesser eines Kreises definieren, aber im Laufe der Jahrhunderte entpuppte sie sich als Störenfried, der Rechengelehrten das Leben gehörig zur Hölle machte. Wie kann eine einfache Zahl Generationen von Mathematikern zur Verzweiflung treiben? Wieso verbrachten Gelehrte Jahrzehnte damit, wenige Nachkommastellen dieser Zahl auszurechnen -- wie zum Beispiel der Mathematiker Rutherford, der sich dummerweise ab der 152. Stelle verrechnete und daher genausogut fünf Jahre seines Lebens auf den Bahamas hätte Urlaub machen können? Wieso verbringen erwachsene Menschen ihre Zeit damit, in engen, mit Computern vollgestopften Zimmern zu hausen, die nicht beheizt, aber trotzdem warm sind von der Abwärme von Computerprozessoren, die auf der Suche nach Regelmäßigkeiten in der Zahl Pi sind? Genau das ist Delahayes Thema, und genau das hebt sein Werk aus der Masse vieler populärwissenschaftlicher Bücher zu ähnlichen Themen heraus: Der Autor macht nicht nur Forschung begreifbar, sondern steckt regelrecht an mit seiner Begeisterung für Pi. Wußten Sie, daß die Zahl Pi in den bisher gefundenen Nachkommastellen dieser Zahl -- statistisch verschlüsselt -- ihrerseits verborgen ist? Daß Pi in der Bibel vorkommt (allerdings mit einem lausigen Näherungswert)? Daß es eine Formel gibt, die Nachkommastellen liefert, die bis zur 42 Milliardsten Nachkommastelle mit denen von Pi identisch sind, danach aber nicht mehr -- und niemand weiß warum? Dies und noch viel, viel mehr Staunenswertes breitet Delahaye vor seinen Lesern aus, er stellt Mathematiker vor, die sich über Pi und ähnliche Zahlenmonster den Kopf zerbrochen haben: Leibnitz, Euler, Ramanujan -- dieses früh verstorbene Genie, das "mal eben" Formeln auf Notizblätter werfen konnte, die Mathematikern bis heute die Tränen in die Augen schießen lassen. Delahaye zeigt die brillianten Ideen, mit denen er und seine Kollegen heute ihren Problemen zu Leibe rücken, erklärt elegante Beweise, durchdachte Computeralgorithmen und faszinierende Skurrilitäten, wie zum Beispiel eine Zahl, die man zwar definieren, aber niemals berechnen kann. Wer sich auf dieses Buch einläßt, braucht als Nichtmathematiker schon etwas Mut -- denn Delahaye fordert seinen Lesern einiges ab: Unendliche Reihen, Zahlentheorie, wirklich knackige Algebra. Und manchmal geht der Computerexperte mit ihm durch -- möglich, daß nicht alle seine Kollegen alles unterschreiben würden, was er z.B. in Sachen rechnergestützte Mathematik von sich gibt. Aber viele der Schätze in diesem Buch kann man auch heben, ohne sich ein mathematisches Handbuch an die Seite legen zu müssen: Hier ist eben der gesunde Menschenverstand endlich wieder gefragt. "Pi ist ein Spielverderber", "Pi ist überall", "Pi ist eine Falle". Dieses Buch auch -- und eine Herausforderung.
    Content
    Einheitssacht.: Le fascinant nombre p [Pi]
    Date
    20. 3.2008 14:22:43

Authors

Languages

  • e 204
  • d 190
  • m 8
  • f 7
  • ? 1
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  • s 41
  • i 28
  • b 6
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  • d 2
  • h 1
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