-
Prediger, S.: Kontextuelle Urteilslogik mit Begriffsgraphen : Ein Beitrag zur Restrukturierung der mathematischen Logik (1998)
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- Date
- 27. 2.1999 16:23:24
26. 2.2008 15:58:22
- Footnote
- Rez. in: KO 26(1999) no.3, S.175-176 (R. Wille)
-
Strack, H.; Skorsky, M.: Zugriffskontrolle bei Programmsystemen und im Datenschutz mittels Formaler Begriffsanalyse (2000)
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- Date
- 29.11.1999 16:15:23
- Source
- Begriffliche Wissensverarbeitung: Methoden und Anwendungen, mit Beiträgen zahlreicher Fachwissenschaftler. Hrsg.: G. Stumme u. R. Wille
-
Großkopf, A.; Harras, G.: Begriffliche Erkundung semantischer Strukturen von Sprechaktverben (2000)
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- Date
- 29.11.1999 16:23:21
- Source
- Begriffliche Wissensverarbeitung: Methoden und Anwendungen, mit Beiträgen zahlreicher Fachwissenschaftler. Hrsg.: G. Stumme u. R. Wille
-
Wille, R.: Concept lattices and conceptual knowledge systems (1992)
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- Source
- Computers and mathematics with applications. 23(1992), S.493-515
-
Vogt, F.: Formale Begriffsanalyse mit C++ : Datenstrukturen und Algorithmen (1996)
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- Abstract
- Das Buch soll den Leser, der an Formaler Begriffsnalyse als Methode der Datenanalyse und Wissensstrukturierung interssiert ist, in die Lage versetzen, eigene C++-Programme zur Formalen Begriffsanalyse zu schreiben. Die Vorgehensweise der Formalen Begriffsanalyse werden an einem Anwendungsbeispiel erläutert, so daß das Buch sowohl als Leitfaden für den interessierten Neueinsteiger als auch als Handbuch für den versierten Anwendungsprogrammierer und Projektleiter dienen kann
- Content
- The book comprises 16 chapters and an appendix in which the software CONSCRIPT is explained
- Footnote
- Rez. in: Knowledge organization 25(1998) nos.1/2, S.47 (S. Düwel u. W. Hesse)
-
Priss, U.; Old, L.J.: Concept neighbourhoods in knowledge organisation systems (2010)
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- Abstract
- This paper discusses the application of concept neighbourhoods (in the sense of formal concept analysis) to knowledge organisation systems. Examples are provided using Roget's Thesaurus, WordNet and Wikipedia categories.
- Series
- Advances in knowledge organization; vol.12
- Source
- Paradigms and conceptual systems in knowledge organization: Proceedings of the Eleventh International ISKO Conference, 23-26 February 2010 Rome, Italy. Edited by Claudio Gnoli and Fulvio Mazzocchi
-
Zickwolff, M.: Zur Rolle der Formalen Begriffsanalyse in der Wissensakquisition (1994)
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- Source
- Begriffliche Wissensverarbeitung: Grundfragen und Aufgaben. Hrsg.: R. Wille u. M. Zickwolff
-
Wille, R.: Liniendiagramme hierarchischer Begriffssysteme (1984)
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- Footnote
- Engl. in: International classification 11(1984) S.77-86
- Series
- Studien zur Klassifikation; Bd.15
- Source
- Anwendungen in der Klassifikation. II: Datenanalyse und numerische Klassifikation. Proc. 8. Jahrestagung der Gesellschaft für Klassifikation, Hofgeismar, 10.-13.4.1984. Hrsg.: H.H. Bock
-
Wille, R.: Begriffliche Datensysteme als Werkzeuge der Wissenskommunikation (1992)
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- Series
- Schriften zur Informationswissenschaft; Bd.7
- Source
- Mensch und Maschine: Informationelle Schnittstellen der Kommunikation. Proc. des 3. Int. Symposiums für Informationswissenschaft (ISI'92), 5.-7.11.1992 in Saarbrücken. Hrsg.: H.H. Zimmermann, H.-D. Luckhardt u. A. Schulz
-
Sander, C.; Schmiede, R.; Wille, R.: ¬Ein begriffliches Datensystem zur Literatur der interdisziplinären Technikforschung (1993)
0.03
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- Abstract
- Begriffliche Datensysteme sind im Rahmen der Formalen Begriffsanalyse entstanden und gründen sich auf mathematische Formalisierungen von Begriff, Begriffssystem und Begriffliche Datei. Sie machen Wissen, das in einer Datenbasis vorliegt, begrifflich zugänglich und interpretierbar. Hierfür werden begriffliche Zusammenhänge entsprechend gewählter Frageaspekte in gestuften Liniendiagrammen dargestellt. Durch Verfeinern, Vergröbern und Wechseln von Begriffstrukturen kann man unbegrenzt durch das in der Datenbasis gespeicherte Wissen "navigieren". In einem Forschungsprojekt, gefördert vom Zentrum für interdisziplinäre Technikforschung an der TH Darmstadt, ist ein Prototyp eines begrifflichen Datensystems erstellt worden, dem als Datenkontext eine ausgewählte, begrifflich aufgearbeitete Menge von Büchern zur interdisziplinären Technikforschung zugrunde liegt. Mit diesem Prototyp soll die flexible und variable Verwendung begrifflicher datensysteme im Literaturbereich demonstriert werden
- Source
- Vortrag, 17. Jahrestagung der Gesellschaft für Klassifikation, 3.-5.3.1993 in Kaiserslautern
-
Pollandt, S.: Fuzzy-Begriffe : Formale Begriffsanalyse unscharfer Daten (1997)
0.03
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- Abstract
- Ausgehend von der Theorie der Fuzzy-Mengen und Fuzzy-Logik werden neue Methoden zur Analyse unscharfer Daten entwickelt. Dazu wird die Theorie der Formalen Begriffsanalyse in einer Reihe von Methoden und Verfahren erweitert und somit der Forderung von Anwendern nach Möglichkeiten zur begriffsanalytischen Erfassung unscharfer Daten Rechnung getragen. Die benötigten theoretischen Grundlagen werden einführend bereitgestellt, die mathematische Darstellung wird an leicht nachvollziehbaren praktischen Beispielen veranschaulicht
- Footnote
- Rez. in: Knowledge organization 25(1998) no.3, S.123-124 (K.E. Wolff)
-
Wille, R.: Begriffliche Wissensverarbeitung in der Wirtschaft (2002)
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- Abstract
- Begriffliche Wissensverarbeitung ist einem pragmatischen Wissensverständnis verpflichtet, nach dem menschliches Wissen in einem offenen Prozess menschlichen Denkens, Argumentierens und Kommunizierens entsteht und weiterlebt. Sie gründet sich auf eine mathematische Begriffstheorie, die auf das wechselseitige Zusammenwirken von Formalem und Inhaltlichem ausgerichtet ist. Wie diese theoretische Konzeption in der wirtschaftlichen Praxis zur Wirkung kommt wird erläutert anhand der Kernprozesse des organisationalen Wissensmanagements, d.h. nach G. Probst et al. anhand von Wissensidentifikation, Wissenserwerb, Wissensentwicklung, Wissens(ver)teilung, Wissensnutzung und Wissensbewahrung; jeweils an einem Beispiel wird der Einsatz spezifischer Methoden der Begrifflichen Wissensverarbeitung demonstriert. Abschließend wird auf den prozesshaften Wirkungszusammenhang von Wissenszielen und Wissensbewertungen mit den Kernprozessen aus Sicht der Begrifflichen Wissensverarbeitung eingegangen.
- Source
- Information - Wissenschaft und Praxis. 53(2002) H.3, S.149-160
-
Kaytoue, M.; Kuznetsov, S.O.; Assaghir, Z.; Napoli, A.: Embedding tolerance relations in concept lattices : an application in information fusion (2010)
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- Abstract
- Formal Concept Analysis (FCA) is a well founded mathematical framework used for conceptual classication and knowledge management. Given a binary table describing a relation between objects and attributes, FCA consists in building a set of concepts organized by a subsumption relation within a concept lattice. Accordingly, FCA requires to transform complex data, e.g. numbers, intervals, graphs, into binary data leading to loss of information and poor interpretability of object classes. In this paper, we propose a pre-processing method producing binary data from complex data taking advantage of similarity between objects. As a result, the concept lattice is composed of classes being maximal sets of pairwise similar objects. This method is based on FCA and on a formalization of similarity as a tolerance relation (reexive and symmetric). It applies to complex object descriptions and especially here to interval data. Moreover, it can be applied to any kind of structured data for which a similarity can be dened (sequences, graphs, etc.). Finally, an application highlights that the resulting concept lattice plays an important role in information fusion problem, as illustrated with a real-world example in agronomy.
- Pages
- 23 S
-
Kollewe, W.; Sander, C.; Schmiede, R.; Wille, R.: TOSCANA als Instrument der bibliothekarischen Sacherschließung (1995)
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- Imprint
- Oldenburg : Bibliotheks- und Informationssystem
- Source
- Aufbau und Erschließung begrifflicher Datenbanken: Beiträge zur bibliothekarischen Klassifikation. Eine Auswahl von Vorträgen der Jahrestagungen 1993 (Kaiserslautern) und 1994 (Oldenburg) der Gesellschaft für Klassifikation. Hrsg.: H. Havekost u. H.-J. Wätjen
-
Kipke, U.; Wille, R.: Begriffsverbände als Ablaufschemata zur Gegenstandsbestimmung (1986)
0.02
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- Abstract
- Ausgeführt wird, wie Begriffsverbände als Ablaufschemata zur Gegenstandsbestimmung genutzt werden können. Im Gegensatz zur Baumabfrage gestattet die beschriebene Methode dem Benutzer ein Höchstmaß an Freiheit und Transparenz. Demonstriert wird die Methode an der Bestimmung des Symmetrieprinzips von Flächenmustern
- Series
- Studien zur Klassifikation; Bd.17
- Source
- Die Klassifikation und ihr Umfeld. Proc. 10. Jahrestagung der Gesellschaft für Klassifikation, Münster, 18.-21.6.1986. Hrsg.: P. Degens, H.-J. Hermes, O. Opitz
-
Ganter, B.; Wille, R.: Implikationen und Abhängigkeiten zwischen Merkmalen (1986)
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- Series
- Studien zur Klassifikation; Bd.17
- Source
- Die Klassifikation und ihr Umfeld: Proc. 10. Jahrestagung der Gesellschaft für Klassifikation, Münster, 18.-21.6.1986. Hrsg.: P.O. Degens
-
Vogt, C.; Wille, R.: Formale Begriffsanalyse : Darstellung und Analyse von bibliographischen Daten (1994)
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- Source
- Informations- und Wissensverarbeitung in den Sozialwissenschaften: Beiträge zur Umsetzung neuer Informationstechnologien. Hrsg.: H. Best u.a
-
Kollewe, W.; Sander, C.; Schmiede, R.; Wille, R.: TOSCANA als Instrument der bibliothekarischen Sacherschließung (1995)
0.02
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- Abstract
- TOSCANA ist ein Computerprogramm, mit dem begriffliche Erkundungssysteme auf der Grundlage der Formalen Begriffsanalyse erstellt werden können.In der vorliegenden Arbeit wird diskutiert, wie TOSCANA zur bibliothekarischen Sacherschließung und thematischen Literatursuche eingesetzt werden kann. Berichtet wird dabei von dem Forschungsprojekt 'Anwendung eines Modells begrifflicher Wissenssysteme im Bereich der Literatur zur interdisziplinären Technikforschung', das vom Darmstädter Zentrum für interdisziplinäre Technikforschung gefördert worden ist
-
Skorsky, M.: How to draw a concept lattice with parallelograms (1989)
0.02
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- Series
- Studien zur Klassifikation; Bd.19
- Source
- Klassifikation und Ordnung. Tagungsband 12. Jahrestagung der Gesellschaft für Klassifikation, Darmstadt 17.-19.3.1988. Hrsg.: R. Wille
-
Negm, E.; AbdelRahman, S.; Bahgat, R.: PREFCA: a portal retrieval engine based on formal concept analysis (2017)
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- Abstract
- The web is a network of linked sites whereby each site either forms a physical portal or a standalone page. In the former case, the portal presents an access point to its embedded web pages that coherently present a specific topic. In the latter case, there are millions of standalone web pages, that are scattered throughout the web, having the same topic and could be conceptually linked together to form virtual portals. Search engines have been developed to help users in reaching the adequate pages in an efficient and effective manner. All the known current search engine techniques rely on the web page as the basic atomic search unit. They ignore the conceptual links, that reveal the implicit web related meanings, among the retrieved pages. However, building a semantic model for the whole portal may contain more semantic information than a model of scattered individual pages. In addition, user queries can be poor and contain imprecise terms that do not reflect the real user intention. Consequently, retrieving the standalone individual pages that are directly related to the query may not satisfy the user's need. In this paper, we propose PREFCA, a Portal Retrieval Engine based on Formal Concept Analysis that relies on the portal as the main search unit. PREFCA consists of three phases: First, the information extraction phase that is concerned with extracting portal's semantic data. Second, the formal concept analysis phase that utilizes formal concept analysis to discover the conceptual links among portal and attributes. Finally, the information retrieval phase where we propose a portal ranking method to retrieve ranked pairs of portals and embedded pages. Additionally, we apply the network analysis rules to output some portal characteristics. We evaluated PREFCA using two data sets, namely the Forum for Information Retrieval Evaluation 2010 and ClueWeb09 (category B) test data, for physical and virtual portals respectively. PREFCA proves higher F-measure accuracy, better Mean Average Precision ranking and comparable network analysis and efficiency results than other search engine approaches, namely Term Frequency Inverse Document Frequency (TF-IDF), Latent Semantic Analysis (LSA), and BM25 techniques. As well, it gains high Mean Average Precision in comparison with learning to rank techniques. Moreover, PREFCA also gains better reach time than Carrot as a well-known topic-based search engine.
- Date
- 23. 1.2017 14:06:53
