-
Hubel, D.H.: ¬Das Gehirn (1979)
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- Date
- 22. 7.2000 19:02:36
-
Hubel, D.H.; Wiesel, T.N.: ¬Die Verarbeitung visueller Informationen (1979)
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- Date
- 22. 7.2000 19:03:33
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Ackermann, E.: Piaget's constructivism, Papert's constructionism : what's the difference? (2001)
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- Content
- Vgl.: https://www.semanticscholar.org/paper/Piaget-%E2%80%99-s-Constructivism-%2C-Papert-%E2%80%99-s-%3A-What-%E2%80%99-s-Ackermann/89cbcc1e740a4591443ff4765a6ae8df0fdf5554. Darunter weitere Hinweise auf verwandte Beiträge. Auch unter: Learning Group Publication 5(2001) no.3, S.438.
-
Hastik, C.; Schuster, A.; Knauerhase, A.: Wissenschaftliche Suchmaschinen : Usability Evaluation und Betrachtung des Suchverhaltens potentieller Nutzer (2009)
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- Abstract
- Wissenschaftliche Suchmaschinen haben es nicht leicht in einer "Amazoogle" gestalteten Welt. Dabei ist nicht nur die Einfachheit der Benutzerschnittstelle d.h. die Umsetzung von Usability-Anforderungen entscheidend für den Erfolg, sondern ebenso die Qualität der Suchergebnisse. Im Rahmen des Masterprojektes "Wissenschaftliche Suchmaschinen" an der Hochschule Darmstadt werden benutzerspezifische Bedürfnisse, Anforderungen und Aspekte der Wahrnehmung in Relation zum individuellen Informationssuchverhalten aufgerollt und methodisch evaluiert. Es wird der Fragestellung nachgegangen, was die Informationssuche auszeichnet und welche Rolle die Informationskompetenz der Nutzer in diesem Rahmen spielt. Anschließend werden die Ergebnisse detailliert skizziert, analysiert und daraus Rückschlüsse auf die zielgruppenspezifischen Anforderungen und Bedürfnisse hinsichtlich der Gestaltung von wissenschaftlichen Suchmaschinen gezogen.
- Date
- 23. 3.2009 14:49:22
-
Oehlschläger, S.: Treffpunkt Standardisierung 2012 (2012)
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- Content
- Hamburg, das Tor zur Welt, war in diesem Jahr Gastgeber für den 101. Deutschen Bibliothekartag. "Bibliotheken - Tore zur Welt des Wissens" lautete dementsprechend auch das Motto der Veranstaltung, die von 4730 Teilnehmerinnen und Teilnehmern vornehmlich aus Deutschland, aber auch aus vielen europäischen Nachbarstaaten sowie den USA besucht wurde. Rund 300 Vortragsveranstaltungen innerhalb von 10 Themenkreisen sowie etliche Arbeits- und Gremiensitzungen wurden vom 22. bis 25. Mai durchgeführt. Im Themenkreis "Neue Netze und Portale" war auch der "Treffpunkt Standardisierung" angesiedelt, den der Standardisierungsausschuss seit dem Jahr 2001, d.h. nunmehr zum elften Mal, angeboten hat und der unverändert sehr gut besucht war. Berndt Dugall, der Vorsitzende des Standardisierungsausschusses, führte durch den Vormittag und rief einleitend den Zuhörerinnen und Zuhörern die Anfänge dieser Veranstaltungsreihe beim Bibliothekartag in Bielefeld ins Gedächtnis.
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Gödert, W.; Hubrich, J.; Boteram, F.: Thematische Recherche und Interoperabilität : Wege zur Optimierung des Zugriffs auf heterogen erschlossene Dokumente (2009)
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- Source
- https://opus4.kobv.de/opus4-bib-info/frontdoor/index/index/searchtype/authorsearch/author/%22Hubrich%2C+Jessica%22/docId/703/start/0/rows/20
-
Jonassen, D.H.; Grabinger, R.S.: Problems and issues in designing hypertext/hypermedia for learning (1990)
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- Source
- Designing hypermedia for learning. NATO advanced research workshop on designing hypertext/hypermedia for learning, Rottenburg, 3.-8.7.1989. Proceedings. Ed.: D.H. Jonassen u. H. Mandl
-
Clack, D.H.: Year's work in subject analysis : 1979 (1980)
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Clack, D.H.: Collection access through subject headings (1989)
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-
Sonnenwald, D.H.: Scientific collaboration (2007)
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-
Brunell, D.H.: Comparing CD-ROM products (1988)
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-
Körner, H.P.; Paetel, D.H.; Ruppert, W.-R.: Sehen und agieren mit dem CICERO-Thesaurus (1988)
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-
Hutto, D.H.: Cataloging electronic supplements to serials : beyond the note field (1994)
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-
Sonnenwald, D.H.: Evolving perspectives of human information behaviour : contexts, situations, social networks and information horizons (1999)
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- Date
- 22. 3.2002 9:46:09
-
Lee, S.-S.; Theng, Y.-L.; Goh, D.H.-L.: Creative information seeking : part II: empirical verification (2007)
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- Date
- 23.12.2007 12:22:16
-
Hotho, A.; Bloehdorn, S.: Data Mining 2004 : Text classification by boosting weak learners based on terms and concepts (2004)
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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
-
Rostek, L.; Fischer, D.H.: Objektorientierte Modellierung eines Thesaurus auf der Basis eines Frame-Systems mit graphischer Benutzerschnittstelle (1988)
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Clack, D.H.: AACR2 and the small academic library (1983)
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Sonnenwald, D.H.; Whitton, M.C.; Maglaughlin, K.L.: Scientific collaboratories : evaluating their potential (2002)
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Stock, W.G.: Qualitätskriterien von Suchmaschinen : Checkliste für Retrievalsysteme (2000)
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- Abstract
- Suchmaschinen im World Wide Web wird nachgesagt, dass sie - insbesondere im Vergleich zur Retrievalsoftware kommerzieller Online-Archive suboptimale Methoden und Werkzeuge einsetzen. Elaborierte befehlsorientierte Retrievalsysteme sind vom Laien gar nicht und vom Professional nur dann zu bedienen, wenn man stets damit arbeitet. Die Suchsysteme einiger "independents", also isolierter Informationsproduzenten im Internet, zeichnen sich durch einen Minimalismus aus, der an den Befehlsumfang anfangs der 70er Jahre erinnert. Retrievalsoftware in Intranets, wenn sie denn überhaupt benutzt wird, setzt fast ausnahmslos auf automatische Methoden von Indexierung und Retrieval und ignoriert dabei nahezu vollständig dokumentarisches Know how. Suchmaschinen bzw. Retrievalsysteme - wir wollen beide Bezeichnungen synonym verwenden - bereiten demnach, egal wo sie vorkommen, Schwierigkeiten. An ihrer Qualität wird gezweifelt. Aber was heißt überhaupt: Qualität von Suchmaschinen? Was zeichnet ein gutes Retrievalsystem aus? Und was fehlt einem schlechten? Wir wollen eine Liste von Kriterien entwickeln, die für gutes Suchen (und Finden!) wesentlich sind. Es geht also ausschließlich um Quantität und Qualität der Suchoptionen, nicht um weitere Leistungsindikatoren wie Geschwindigkeit oder ergonomische Benutzerschnittstellen. Stillschweigend vorausgesetzt wirdjedoch der Abschied von ausschließlich befehlsorientierten Systemen, d.h. wir unterstellen Bildschirmgestaltungen, die die Befehle intuitiv einleuchtend darstellen. Unsere Checkliste enthält nur solche Optionen, die entweder (bei irgendwelchen Systemen) schon im Einsatz sind (und wiederholt damit zum Teil Altbekanntes) oder deren technische Realisierungsmöglichkeit bereits in experimentellen Umgebungen aufgezeigt worden ist. insofern ist die Liste eine Minimalforderung an Retrievalsysteme, die durchaus erweiterungsfähig ist. Gegliedert wird der Kriterienkatalog nach (1.) den Basisfunktionen zur Suche singulärer Datensätze, (2.) den informetrischen Funktionen zur Charakterisierunggewisser Nachweismengen sowie (3.) den Kriterien zur Mächtigkeit automatischer Indexierung und natürlichsprachiger Suche
- Source
- Password. 2000, H.5, S.22-31
