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Becks, D.; Mandl, T.; Womser-Hacker, C.: Spezielle Anforderungen bei der Evaluierung von Patent-Retrieval-Systemen (2010)
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- Abstract
- Innerhalb der informationswissenschaftlich geprägten Fachinformation nimmt die Patentdomäne eine gewisse Sonderstellung ein, da sie über eine Reihe von Besonderheiten verfügt, die es notwendig machen, die klassischen Methoden der Bewertung zu überarbeiten bzw. zu adaptieren. Dies belegen unter anderem die Ergebnisse des Intellectual Property Track, der seit 2009 im Rahmen der Evaluierungskampagne CLEF stattfindet. Der vorliegende Artikel beschreibt die innerhalb des zuvor genannten Track erzielten Ergebnisse. Darüber hinaus werden die Konsequenzen für die Evaluierung von Patent-Retrieval-Systemen herausgearbeitet.
- Source
- Information und Wissen: global, sozial und frei? Proceedings des 12. Internationalen Symposiums für Informationswissenschaft (ISI 2011) ; Hildesheim, 9. - 11. März 2011. Hrsg.: J. Griesbaum, T. Mandl u. C. Womser-Hacker
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Mielke, B.: Wider einige gängige Ansichten zur juristischen Informationserschließung (2002)
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- Abstract
- Ausgehend von einer Betrachtung in der Rechtsinformatik geläufiger Annahmen zur juristischen Informationserschließung beschreibt der Beitrag wesentliche Ergebnisse einer empirischen Studie der Retrievaleffektivität von Re-cherchen in juristischen Datenbanken. Dabei steht die Frage nach der Notwendigkeit einer intellektuellen Erschließung einerseits, der Effektivität der sogenannten Stichwortsuche andererseits im Mittelpunkt. Die Ergebnisse der Studie, bei der auch ein Vergleich zwischen einem Informationssystem auf der Basis eines Booleschen Retrievalmodells mit einem System auf der Basis statistischer Verfahren vorgenommen wurde, legen den Schluss nahe, dass in der rechtsinformatischen Fachliteratur analytisch begründete Annahmen wie die Gefahr zu großer Antwortmengen bei der Stichwortsuche empirisch nicht zu belegen sind. Auch zeigt sich keine Überlegenheit intellektueller Erschließungsverfahren (Beschlagwortung) gegenüber der automatischen Indexierung, im Gegenteil führt der Einsatz eines statistischen Verfahrens bei identischer Dokumentkollektion zu einer höheren Wiedergewinnungsrate (recall).
- Source
- Information und Mobilität: Optimierung und Vermeidung von Mobilität durch Information. Proceedings des 8. Internationalen Symposiums für Informationswissenschaft (ISI 2002), 7.-10.10.2002, Regensburg. Hrsg.: Rainer Hammwöhner, Christian Wolff, Christa Womser-Hacker
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Griesbaum, J.; Rittberger, M.; Bekavac, B.: Deutsche Suchmaschinen im Vergleich : AltaVista.de, Fireball.de, Google.de und Lycos.de (2002)
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- Source
- Information und Mobilität: Optimierung und Vermeidung von Mobilität durch Information. Proceedings des 8. Internationalen Symposiums für Informationswissenschaft (ISI 2002), 7.-10.10.2002, Regensburg. Hrsg.: Rainer Hammwöhner, Christian Wolff, Christa Womser-Hacker
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Griesbaum, J.: Evaluierung hybrider Suchsysteme im WWW (2000)
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- Abstract
- Der Ausgangspunkt dieser Arbeit ist die Suchproblematik im World Wide Web. Suchmaschinen sind einerseits unverzichtbar für erfolgreiches Information Retrieval, andererseits wird ihnen eine mäßige Leistungsfähigkeit vorgeworfen. Das Thema dieser Arbeit ist die Untersuchung der Retrievaleffektivität deutschsprachiger Suchmaschinen. Es soll festgestellt werden, welche Retrievaleffektivität Nutzer derzeit erwarten können. Ein Ansatz, um die Retrievaleffektivität von Suchmaschinen zu erhöhen besteht darin, redaktionell von Menschen erstellte und automatisch generierte Suchergebnisse in einer Trefferliste zu vermengen. Ziel dieser Arbeit ist es, die Retrievaleffektivität solcher hybrider Systeme im Vergleich zu rein roboterbasierten Suchmaschinen zu evaluieren. Zunächst werden hierzu die grundlegenden Problembereiche bei der Evaluation von Retrievalsystemen analysiert. In Anlehnung an die von Tague-Sutcliff vorgeschlagene Methodik wird unter Beachtung der webspezifischen Besonderheiten eine mögliche Vorgehensweise erschlossen. Darauf aufbauend wird das konkrete Setting für die Durchführung der Evaluation erarbeitet und ein Retrievaleffektivitätstest bei den Suchmaschinen Lycos.de, AItaVista.de und QualiGo durchgeführt.
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Oberhauser, O.; Labner, J.: OPAC-Erweiterung durch automatische Indexierung : Empirische Untersuchung mit Daten aus dem Österreichischen Verbundkatalog (2002)
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- Abstract
- In Anlehnung an die in den neunziger Jahren durchgeführten Erschließungsprojekte MILOS I und MILOS II, die die Eignung eines Verfahrens zur automatischen Indexierung für Bibliothekskataloge zum Thema hatten, wurde eine empirische Untersuchung anhand einer repräsentativen Stichprobe von Titelsätzen aus dem Österreichischen Verbundkatalog durchgeführt. Ziel war die Prüfung und Bewertung der Einsatzmöglichkeit dieses Verfahrens in den Online-Katalogen des Verbundes. Der Realsituation der OPAC-Benutzung gemäß wurde ausschließlich die Auswirkung auf den automatisch generierten Begriffen angereicherten Basic Index ("Alle Felder") untersucht. Dazu wurden 100 Suchanfragen zunächst im ursprünglichen Basic Index und sodann im angereicherten Basic Index in einem OPAC unter Aleph 500 durchgeführt. Die Tests erbrachten einen Zuwachs an relevanten Treffern bei nur leichten Verlusten an Precision, eine Reduktion der Nulltreffer-Ergebnisse sowie Aufschlüsse über die Auswirkung einer vorhandenen verbalen Sacherschließung.
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Binder, G.; Stahl, M.; Faulborn, L.: Vergleichsuntersuchung MESSENGER-FULCRUM (2000)
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- Abstract
- In einem Benutzertest, der im Rahmen der Projektes GIRT stattfand, wurde die Leistungsfähigkeit zweier Retrievalsprachen für die Datenbankrecherche überprüft. Die Ergebnisse werden in diesem Bericht dargestellt: Das System FULCRUM beruht auf automatischer Indexierung und liefert ein nach statistischer Relevanz sortiertes Suchergebnis. Die Standardfreitextsuche des Systems MESSENGER wurde um die intellektuell vom IZ vergebenen Deskriptoren ergänzt. Die Ergebnisse zeigen, dass in FULCRUM das Boole'sche Exakt-Match-Retrieval dem Verktos-Space-Modell (Best-Match-Verfahren) von den Versuchspersonen vorgezogen wurde. Die in MESSENGER realisierte Mischform aus intellektueller und automatischer Indexierung erwies sich gegenüber dem quantitativ-statistischen Ansatz beim Recall als überlegen
-
Grunder, R.: Qualitätskriterien für Datenbanken : Grundsätzliche Überlegungen und Untersuchung ausgewählter Aspekte am Beispiel bibliographischer Online-Datenbanken (1995)
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-
Krause, J.; Mutschke, P.: Indexierung und Fulcrum-Evaluierung (1999)
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-
Hofmann, M.: TREC Konferenzbericht (7.10.93) (1995)
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- Abstract
- Ziel der US-amerikanischen TREC (Texte REtrieval Conference) Initiative ist es, zum einen Standard-Kollektionen von Teten zu erstellen, auf deren Basis verschiedene Retrieval-Ansätze verglichen werden können. Zum anderen sollen Kollektionen einer Grösse aufgebaut werden, die realistischen Anwendungen nahe kommen. Damit soll das alte Vorurteil der Untauglichkeit neuerer IR-Methoden (bzgl. Effizienz und Effektivität) für größere Darenbasen widerlegt werden.
-
Meyer, O.C.: Retrievalexperimente mit bibliothekarischen Daten : Historischer Überblick und aktueller Forschungsstand (2022)
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- Abstract
- Die Retrievalforschung in der Bibliothekswissenschaft hat in den letzten Jahrzehnten beachtliche Fortschritte gemacht. Automatische Indexierungsmethoden werden immer häufiger angewendet, obwohl dieses Thema in der Bibliothekswelt kontrovers diskutiert wird. Die Ergebnisse maschineller Erschließungsarbeit werden anhand von Retrievaltests festgehalten. Der Gegenstand dieser Arbeit ist die Darstellung von Retrievalexperimenten mit bibliothekarischen Daten. Zu Beginn werden die Grundlagen solcher Retrievaltests sowie das Cranfield-Paradigma erläutert. Es folgt eine Vorstellung verschiedener wissen schaftlicher Projekte aus diesem Forschungsfeld in chronologischer Reihenfolge. Wenn Verbindungen oder Einflussnahmen zwischen den einzelnen Projekten bestehen, werden diese herausgestellt. Im besonderen Umfang wird das Retrievalprojekt GELIC der TH Köln beschrieben, an dem der Autor dieser Arbeit beteiligt war. Obwohl es isolierte Retrievalprojekte gibt, lässt sich aus methodischer Sicht eine Verbindung von den frühesten Experimenten zu den heutigen Retrievalexperimenten herstellen. Diese Entwicklung ist noch nicht abgeschlossen.
- Footnote
- Bachelorarbeit zur Erlangung des Bachelor-Grades Bachelor of Arts im Studiengang Bibliothekswissenschaft an der Fakultät für Informationswissenschaft der Technischen Hochschule Köln.
-
Kluck, M.: ¬Eine deutschsprachige Testdatenbank für moderne Erschließungs- und Retrievalsysteme : German Indexing and Retrieval Testdatabase - GIRT (1996)
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-
Schoger, A.; Frommer, J.: Heterogen - was nun? : Evaluierung heterogener bibliographischer Metadaten (2000)
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- Source
- Zeitschrift für Bibliothekswesen und Bibliographie. 47(2000) H.1, S.110-128
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Schirrmeister, N.-P.; Keil, S.: Aufbau einer Infrastruktur für Information Retrieval-Evaluationen (2012)
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- Abstract
- Das Projekt "Aufbau einer Infrastruktur für Information Retrieval-Evaluationen" (AIIRE) bietet eine Softwareinfrastruktur zur Unterstützung von Information Retrieval-Evaluationen (IR-Evaluationen). Die Infrastruktur basiert auf einem Tool-Kit, das bei GESIS im Rahmen des DFG-Projekts IRM entwickelt wurde. Ziel ist es, ein System zu bieten, das zur Forschung und Lehre am Fachbereich Media für IR-Evaluationen genutzt werden kann. This paper describes some aspects of a project called "Aufbau einer Infrastruktur für Information Retrieval-Evaluationen" (AIIRE). Its goal is to build a software-infrastructure which supports the evaluation of information retrieval algorithms.
-
Lepsky, K.; Siepmann, J.; Zimmermann, A.: Automatische Indexierung für Online-Kataloge : Ergebnisse eines Retrievaltests (1996)
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- Source
- Zeitschrift für Bibliothekswesen und Bibliographie. 43(1996) H.1, S.47-56
-
Evans, J.E.: Some external and internal factors affecting users of interactive information systems (1996)
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- Herausforderungen an die Informationswirtschaft: Informationsverdichtung, Informationsbewertung und Datenvisualisierung. Proceedings des 5. Internationalen Symposiums für Informationswissenschaft (ISI'96), Humboldt-Universität zu Berlin, 17.-19. Oktober 1996. Hrsg.: J. Krause u.a
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Chen, H.; Martinez, J.; Kirchhoff, A.; Ng, T.D.; Schatz, B.R.: Alleviating search uncertainty through concept associations : automatic indexing, co-occurence analysis, and parallel computing (1998)
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- Theme
- Konzeption und Anwendung des Prinzips Thesaurus
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Tomaiuolo, N.G.; Parker, J.: Maximizing relevant retrieval : keyword and natural language searching (1998)
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- Online. 22(1998) no.6, S.57-58
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Voorhees, E.M.; Harman, D.: Overview of the Sixth Text REtrieval Conference (TREC-6) (2000)
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- Date
- 11. 8.2001 16:22:19
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Dalrymple, P.W.: Retrieval by reformulation in two library catalogs : toward a cognitive model of searching behavior (1990)
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- Date
- 22. 7.2006 18:43:54
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Ronthaler, M.; Zillmann, H.: Literaturrecherche mit OSIRIS : ein Test der OSIRIS-Retrievalkomponente (1998)
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