-
Fugmann, R.: Theoretische Grundlagen der Indexierungspraxis (1992)
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- Imprint
- Frankfurt : Indeks
- RSWK
- Indexierung <Inhaltserschließung>
- Subject
- Indexierung <Inhaltserschließung>
-
Fugmann, R.: ¬Die Funktion von semantischen Kategorien in Indexierungssprachen und bei der Indexierung (1986)
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- Abstract
- Wenn man unter "Indexierung" den zweistufigen Prozeß (a) des Erkennens der Essenz eines wiederauffindbar zu machenden Textes und (b) des Wiedergebens dieser Essenz in einer ausreichend wiedergabetreuen und genügend gut voraussagbaren Form versteht, dann kann die Qualität der Indexierung gesteigert werden, wenn sie unter besonderer Beachtung der Begriffe aus einer kleinen Zahl von besonders wichtigen semantischen Kategorien erfolgt. Bei der Gestaltung der Indexierungssprache müssen die Begriffe aus diesen Kategorien in der erforderlichen Detailliertheit in den Wortschatz aufgenommen werden, und Präkombinationen, die zu "multikategorialen" Begroffen führen, sind möglichst weitgehend zu vermeiden. Präkombinationen, die ausschließlich durch Einbeziehung von häufig vorkommenden ("ubiquitätren") monokategorialen Begriffen gebildet werden, können und sollen aus pragmatischen Gründen für den Wortschatz zugelassen werden. Das Konzept des "Relationenweges" erklärt, inwiefern solche Präkombinationen für den Wortschatz nicht schädlich sind
- Imprint
- Frankfurt : Indeks
-
Fugmann, R.: Unusual possibilities in indexing and classification (1990)
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- Abstract
- Contemporary research in information science has concentrated on the development of methods for the algorithmic processing of natural language texts. Often, the equivalence of this approach to the intellectual technique of content analysis and indexing is claimed. It is, however, disregarded that contemporary intellectual techniques are far from exploiting their full capabilities. This is largely due to the omission of vocabulary categorisation. It is demonstrated how categorisation can drastically improve the quality of indexing and classification, and, hence, of retrieval
- Imprint
- Frankfurt : Indeks
-
Fugmann, R.: Subject analysis and indexing : theoretical foundation and practical advice (1993)
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- Content
- Enthält folgende Kapitel: Information and information systems; Information system survival power; Theoretical considerations on information storage and retrieval; Indexing (representation of the essence of documents; extractive, assignment, consistent indexing, indexing and abstracting, book indexing, index language vocabulary, syntax, concept analysis, evaluation of indexing quality); Technology of information supply; Glossary of terms used; Systematic and 'basic index'
- Imprint
- Frankfurt : Indeks
-
Fugmann, R.: Inhaltserschließung durch Indexieren : Prinzipien und Praxis (1999)
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- Imprint
- Frankfurt am Main : DGD
- RSWK
- Indexierung <Inhaltserschliessung>
- Subject
- Indexierung <Inhaltserschliessung>
-
Fugmann, R.: Representational predictibility : key to the resolution of several pending issues in indexing and information supply (1994)
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- Abstract
- The low effectiveness of most current information systems has often been pointed out and deplored. A number of misconceptions and experiments under unrealistic conditions have contributed to the faulty design and evaluation of information systems. The postulate of representational predictibility can help to clarify some of the still pending issues as there are the strenghts and limitations of uncontrolled natural language text in retrieval systems, factors for their evaluation, the reliability, consistency, and exhaustivity of indexing, the postulated 'inverse precision-recall relationship', and the usefulness of syntactical evices. The performance of information systems can be imporved if representational predictibility is aimed at in their design and operational use
- Imprint
- Frankfurt : INDEKS
-
Fugmann, R.: On the role of subjectivity in establishing, using, operating and evaluating information retrieval systems : treatise 2 on information retrieval theory (1973)
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- Source
- Information storage and retrieval. 9(1973), S.353-372
-
Fugmann, R.: ¬The theoretical foundation of the IDC-system : 6 postulates for information retrieval; treatise 1 on information retrieval theory (1972)
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-
Fugmann, R.: ¬The complementarity of natural and indexing languages (1985)
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- Abstract
- The second Cranfield experiment (Cranfield II) in the mid-1960s challenged assumptions held by librarians for nearly a century, namely, that the objective of providing subject access was to bring together all materials an a given topic and that the achieving of this objective required vocabulary control in the form of an index language. The results of Cranfield II were replicated by other retrieval experiments quick to follow its lead and increasing support was given to the opinion that natural language information systems could perform at least as effectively, and certainly more economically, than those employing index languages. When the results of empirical research dramatically counter conventional wisdom, an obvious course is to question the validity of the research and, in the case of retrieval experiments, this eventually happened. Retrieval experiments were criticized for their artificiality, their unrepresentative sampies, and their problematic definitions-particularly the definition of relevance. In the minds of some, at least, the relative merits of natural languages vs. indexing languages continued to be an unresolved issue. As with many eitherlor options, a seemingly safe course to follow is to opt for "both," and indeed there seems to be an increasing amount of counsel advising a combination of natural language and index language search capabilities. One strong voice offering such counsel is that of Robert Fugmann, a chemist by training, a theoretician by predilection, and, currently, a practicing information scientist at Hoechst AG, Frankfurt/Main. This selection from his writings sheds light an the capabilities and limitations of both kinds of indexing. Its special significance lies in the fact that its arguments are based not an empirical but an rational grounds. Fugmann's major argument starts from the observation that in natural language there are essentially two different kinds of concepts: 1) individual concepts, repre sented by names of individual things (e.g., the name of the town Augsburg), and 2) general concepts represented by names of classes of things (e.g., pesticides). Individual concepts can be represented in language simply and succinctly, often by a single string of alphanumeric characters; general concepts, an the other hand, can be expressed in a multiplicity of ways. The word pesticides refers to the concept of pesticides, but also referring to this concept are numerous circumlocutions, such as "Substance X was effective against pests." Because natural language is capable of infinite variety, we cannot predict a priori the manifold ways a general concept, like pesticides, will be represented by any given author. It is this lack of predictability that limits natural language retrieval and causes poor precision and recall. Thus, the essential and defining characteristic of an index language ls that it is a tool for representational predictability.
-
Fugmann, R.: ¬Das Faule Ei des Kolumbus im Aslib-Cranfield Vergleich von Informationssystemen : Die erneute Betrachtung eines einflussreichen Experiments (2004)
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- Abstract
- Der Beitrag gibt einen kritischen Rückblick auf die Experimente des ASLIB-CranfieldProjekts, mit dem die Leistungsfähigkeit verschiedenere Methoden der Inhaltserschließung verglichen wurden. Bemängelt wird die fehlende Unterscheidung zwischen Erinnerungsrecherche und Entdeckungsrecherche sowie die Wirklichkeitsferne der Versuchsbedingungen im ASLIB-Cranfield Projekt insbesondere Abwertung der Indexierung, Wirklichkeitsferne der Suchziele, die Empfehlung zum oberflächlichen Indexieren, die vermeintliche "gesetzmäßige Umkehrrelation" zwischen Ballast und Verlust sowie die Geringschätzung von Informationsverlust. Der Autor plädiert dafür, bei der Weiterentwicklung von Methoden der Inhaltserschließung die Erfahrungen aus der Vergangenheit nicht außer Acht zu lassen.
- Source
- Information - Wissenschaft und Praxis. 55(2004) H.4, S.211-220
-
Fugmann, R.: ¬The glamour and the misery of the thesaurus approach : treatise 4 on information retrieval theory (1974)
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-
Fugmann, R.; Isenberg, M.; Winter, J.H.: ¬Das Suchen nach verallgemeinerter Information : treatise 9 on retrieval system theory (1985)
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Fugmann, R.: Toward a theory of information supply and indexing : treatise 6 on retrieval system theory (1976)
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-
Fugmann, R.; Kusemann, G.; Winter, H.J.: ¬The supply of information an chemical reactions in the IDC system (1979)
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- Source
- Information storage and retrieval. 15(1979), S.303-323
-
Fugmann, R.: ¬Das Buchregister : Methodische Grundlagen und praktische Anwendung (2006)
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- Abstract
- 6. In diesem Buch wird in den Kapiteln 2 bis 5 ein Grundkursus zur Theorie der Inhaltserschließung angeboten, wobei die Möglichkeiten und Grenzen von natursprachiger und indexsprachiger Ausdrucksweise geklärt werden, sowie auch der Unterschied zwischen Ausdruck und Begriff, zwischen den Recherchetypen von Erinnerung und Entdeckung, zwischen den Indexierungstypen von Zuteilung und Extraktion und auch der Unterschied zwischen Register und Konkordanz. Auf einer solchen Grundlage kann der Indexer besser den Nutzen der einzelnen Indexierungswerkzeuge abschätzen, sowie auch die nachteiligen Folgen, welche durch den Verzicht auf das eine oder das andere dieser Werkzeuge zwangsläufig eintreten. In der Literatur ist zwar der Standpunkt anzutreffen, dass "allzu viel Theorie" zu vermeiden sei, weil sie doch so "grau" sei. Aber wir schließen uns lieber dem Standpunkt des Physikers Ludwig Boltzmann an: "Nichts ist praktischer als Theorie", wenn eine solche Theorie das Beobachtbare erklären und das Zukünftige voraussagen kann. 7. Im Kapitel 7 werden die Bestandteile des Schlagwort-Registers in Gestalt von Schlagwort und Fundstelle, Untereintrag und Verweisung abgehandelt und das Zusammenfügen dieser Komponenten zum Register der herkömmlichen indikativen Art. Dieser Registertyp ist gekennzeichnet durch seine Beschränkungen bezüglich der Inanspruchnahme von Platz für den Druck und durch seine Beschränkungen bezüglich des Aufwandes an Zeit und Geld zu seiner Erstellung. Es werden die hiermit zwangläufig verbundenen Mängel dargelegt. 8. Im Kapitel 8 wird die Überwindung dieser Mängel durch die Einführung von reichlichen und ausführlichen Untereinträgen gezeigt. Das Register nimmt hierdurch einen ausgesprochen informativen Charakter an. Zugleich werden auf diesem Weg auch Wesen und Nutzen eines systematischen Registers dargelegt, welches zusätzlich zum herkömmlichen alphabetischen Register vorgelegt wird. 9. Die Möglichkeit zu alledem eröffnet sich dadurch, dass eine hochentwickelte Software eingesetzt wird und dass ein außergewöhnlicher Arbeitsaufwand aufseiten des Indexers nicht gescheut wird, verbunden mit entsprechend hohen Kosten. Dieser Aufwand ist erforderlich für die Formulierung von zahlreichen und ausführlichen Untereinträgen, zum Aufbau eines systematischen, thesaurusgestützten Schlagwort-Vokabulars und für eine besonders sorgfältige Indexierung. 10. Dieses Modell eines kompletten informativen Registers ist als eine Art Werkzeugkasten zu verstehen, aus welchem man diejenigen gedanklichen und technischen Werkzeuge auswählen und miteinander kombinieren kann, welche der jeweils herrschenden Bedarfslage am besten angemessen sind. Man wird von diesen Werkzeugen besonders dann ausgiebig Gebrauch machen, wenn hohe Anforderungen an die Treffsicherheit und Leichtigkeit der Recherche gestellt werden, Anforderungen, welche mit einem Register der herkömmlichen indikativen Art nicht erfüllbar sind. Der hohe Aufwand für ein gutes Register ist natürlich nur dann gerechtfertigt, wenn aufseiten der Leser auch wirklich Bedarf zum Nachschlagen besteht. Man wird kein Register für ein Buch anlegen, welches nur zur Unterhaltung und Erbauung gelesen und dann für alle Zeiten beiseite gelegt wird.
- Footnote
- Rez. in: Information - Wissenschaft und Praxis 58(2007) H.3, S.186 (J. Bertram): "Bei aller Kritik: Das Buch gemahnt eindrücklich daran, dass ein gutes Register sowohl den Anforderungen einer Entdeckungsrecherche als auch denen einer Erinnerungsrecherche dienlich sein sollte, um es mit Fugmanns Worten auszudrücken. Heißt: Es soll nicht nur denen zugute kommen, die das Buch gelesen haben, sondern eben gerade auch denjenigen, die es nicht gelesen haben. Nicht nur erinnerte Wortlaute sollen mit ihm wieder auffindbar sein, vielmehr soll das Register auch schnelle Antworten auf die Frage ermöglichen, ob ein Buch zum interessierenden Thema Ergiebiges enthält. Und dass für das zweite Anliegen ein Aufwand zu betreiben ist, der über ein reines Stichwortregister hinausgeht, wird von Fugmann anschaulich und überzeugend dargestellt. Auch seinem Wunsch, dass bei der Rezension vor Büchern Vorhandensein und Qualität des Registers (stärkere) Berücksichtigung finden mögen, ist uneingeschränkt zuzustimmen. Dass das vor ihm produzierte Register des Guten zu viel tut, steht auf einem anderen Blatt."
- Imprint
- Frankfurt am Main : DGI
-
Fugmann, R.: ¬The analytico-synthetic foundation for large indexing & information retrieval systems : dedicated to Prof. Dr. Werner Schultheis, the vigorous initiator of modern chem. documentation in Germany on the occasion of his 85th birthday (1983)
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- LCSH
- Information retrieval
- RSWK
- Information und Dokumentation / Systemgrundlage (BVB)
- Subject
- Information und Dokumentation / Systemgrundlage (BVB)
Information retrieval
-
Fugmann, R.; Nickelsen, H.; Nickelsen, I.; Winter, J.H.: Representation of concept relations using the TOSAR system of IDC : treatise 3 on information retrieval theory (1974)
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- Source
- Journal of the American Society for Information Science. 25(1974), S.287-307
-
Fugmann, R.: ¬Der Mangel an Grammatik bei Indexsprachen und seine Folgen (1987)
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- Imprint
- Frankfurt a.M. : DGD
- Source
- 9. Online-Frühjahrstagung der Online-Benutzergruppe der DGD, Frankfurt am Main, 12.-14.5.1987: Vorträge
-
Fugmann, R.: What is information? : an information veteran looks back (2022)
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- Content
- Vgl.: https://www.nomos-elibrary.de/10.5771/0943-7444-2022-1-3/what-is-information-an-information-veteran-looks-back-jahrgang-49-2022-heft-1?page=1.
- Date
- 18. 8.2022 19:22:57
- Theme
- Information
-
Fugmann, R.: ¬The complementarity of natural and indexing languages (1982)
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- Imprint
- Frankfurt : Indeks
