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Wettler, M.; Rapp, R.; Ferber, R.: Freie Assoziationen und Kontiguitäten von Wörtern in Texten (1993)
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Gloeckner-Rist, A.; Lehmler, W.; Wettler, M.: Endnutzerrecherchen in bibliographischen CD-ROM-Datenbanken (1989)
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- Abstract
- In der Bibliothek der Universität Konstanz werden seit eineinhalb Jahren CD-ROM-Datenbanken für Endnutzerrecherchen angeboten. Der Benutzungsstatistik zufolge werden die CD-ROM-Datenbanken häufig verwendet, und die Benutzer sind mit den Ergebnissen ihrer Recherchen überwiegend zufrieden. Eien detaillierte Analyse der Protokolle von 52 recherchen zeigt jedoch, daß die Endnutzer Schwierigkeiten mit der Systembedienung haben und ihre Suchanfragen häufig unzulänglich formulieren. Konsequenzen für die Entwicklung von Schulungsprogrammen und für die Einbindung von CD-ROM-Datenbanken in das Informationsangebot wissenschaftlicher Bibliotheken werden aufgezeigt
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Lezius, W.; Rapp, R.; Wettler, M.: ¬A morphology-system and part-of-speech tagger for German (1996)
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- Date
- 22. 3.2015 9:37:18
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Wettler, M.: Informationsverarbeitung beim Information Retrieval aus der Sicht der Psychologie (1990)
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- Source
- Pragmatische Aspekte beim Entwurf und Betrieb von Informationssystemen: Proc. 1. Int. Symposiums für Informationswissenschaft, Universität Konstanz, 17.-19.10.1990. Hrsg.: J. Herget u. R. Kuhlen
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Rapp, R.; Wettler, M.: Simulation der Suchwortgenerierung im Information-Retrieval durch Propagierung in einem konnektionistischen Wortnetz (1990)
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Wettler, M.: Psychologische Theorien sind Information-Retrieval-Verfahren (2004)
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- Source
- Wissen in Aktion: Der Primat der Pragmatik als Motto der Konstanzer Informationswissenschaft. Festschrift für Rainer Kuhlen. Hrsg. R. Hammwöhner, u.a
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Ferber, R.; Wettler, M.; Rapp, R.: ¬An associative model of word selection in the generation of search queries (1995)
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- Abstract
- To generate a search query based on an end user request, a database searcher has to select appropriate search terms. These terms can either be taken from the request, or they can be added by the searcher. This selection process is simulated by an associative lexical net; the nodes of the net are the terms used in 94 records of written requests to a psychological information agency and the respective online searches. The weights connecting the nodes are calculated from the co-occurrences of these terms in the abstracts of the database PsycLit. To simulate the term selection process of a query, the nodes of all terms used in the written requests are activated, and 1 or more spreading activation cycles are performed. The result of the simulation is a ranking of the terms according to the activities of their nodes. Simulations for all 94 records show a low mean activity rank for the terms selected from the request; the mean activity rank for new terms added by the searcher is lower than the mean activity rank for thode terms of the request that were not used in the query
