14.3.07

Update: Treffer zu den verschiedenen Themen

Cite Seer (Heimat-Domain) scheint im Moment etwas down zu sein. [...]
Das hiesige Posting reicht die CiteSeer-Treffer nach. Die allein stehenden, fett geschriebenen Stichworte vor dem Doppelpunkt führen jeweils zu einer Suche nach der Zielsetzung ("objective") des jeweiligen Themas.<<


      
Original-Posting

10.3.07

Retrieval results on taxonomies

[confer...] Below you find some sources likely to be useful for the question on what taxonomies are. Some entries provide immediately useful -- i.e. insights causing -- notes.
  • "taxonomies, the currently fashionable term for classification schemes" -- Willpower Information -- Information Management Consultants: Value of organised knowledge, by Jack Bryar. - CMS Watch, 2002-01-21 ("General information about taxonomies as used in buiness applications, with reference to the use of XML tags."), Taxonomy software to the rescue, Paola Maio. - Online Journalism Review, 2001-10-12 ("Brief review of automatic classification / categorisation software, with links to the Web sites of the following suppliers: Autonomy, EoExchange, Inxight, Mohomine, Quiver, Semio, Verity."), Where's my stuff? : Taxonomy and lexicon as keys to access, Mary Chitty. - Newton Upper Falls MA : Cambridge Healthcare Institute, 2002. ("Outline of a talk given to the [USA] Special Libraries Association, 10th June 2002. Includes links to a bibliography on taxonomies and related topics.")
  • Google: Definitions of taxonomy on the Web:
  • "These monophyletic groups may or may not align with one or more morphologically distinguished taxa, and thus may challenge existing classifications based on features such as fruiting body size and form, cutis micro-structure, spore dimensions, host, and geographic distribution. Taxonomy aims to reflect a natural classification of taxa, and molecular data offer a set of objective characters on which to base taxonomic decisions." -- Peter K Buchanan. "A taxonomic overview of the genus Ganoderma with special reference to species of medicinal and neutriceutical importance", Proc Int Symposium Ganoderma Sci, Auckland, 27-29 April, 2001
  • "... All the metrics assume a taxonomy with some semantic order. ... A common method of measuring semantic similarity is to consider the taxonomy as a tree, or lattice, in semantic space. ... If all the edges (branches of the tree) are of equal length, then the number of intervening edges is a measure of the distance. The measurement usually used (Rada et al. 89) is the shortest path between concepts. This, of course, relies on an ideal taxonomy with edges of equal length. In taxonomies based on natural languages, the edges are not the same length. ..." -- Michael L. McHale, CiteSeer: "A Comparison of WordNet and Roget's Taxonomy for Measuring Semantic Similarity (ResearchIndex)"
  • "Definition 1 (Core Ontology). A core ontology is a structure O := (C, <C ) consisting
    of a set C, whose elements are called concept identifiers, and a partial order <C on C,
    called concept hierarchy or taxonomy." -- Stephan Bloehdorn, Andreas Hotho, University of Karlsruhe, Institute AIFB,..., CiteSeer: "Boosting for Text Classification with Semantic Features", 2004
  • "Taxonomies is probably the oldest and most widely used conceptual modeling tool still used in Web directories (e.g. in Google and Yahoo!), Content Management (hierarchical structures are used to classify documents), Web Publishing (many authoring tools require to organize the contents of portals according to some hierarchical structure), Web Services (services are typically classified in a hierarchical form), Marketplaces (goods are classified in hierarchical catalogs), Personal File Systems, Personal Bookmarks for the Web, Libraries (e.g. Thesauri [9]) and in very large collections of objects (e.g. see [13]). Although more sophisticated conceptual models (including concepts, attributes, relations and axioms) have emerged and are recently employed even for meta-tagging in the Web, almost all of them have a backbone consisting of a subsumption hierarchy, i.e. a taxonomy." -- Yannis Tzitzikas, Carlo Meghini, Nicolas Spyratos, "A Unifying Framework for Flexible Information Access in Taxonomy-based Sources", 2004
  • "Taxonomies are very easy to build in comparison to other kinds of conceptual models." -- Yannis Tzitzikas, Carlo Meghini, Nicolas Spyratos, "Taxonomy-based Conceptual Modeling for Peer-to-Peer Networks"
So far, I think, I can conclude, A taxonomy is a (always? mono-hierarchic?) hierarchy of taxons. I am not sure yet, whether these taxons equal to "terms" or to "words", or if both differ from each other and from taxons, too. Also, the terms originate from a terminiology. Classification and thesaurus might be variants of a taxonomy. Ontology might be not a taxonomy, because -- I am not sure, but I mean I remember that ontologies don't need to be a hierarchy -- which a taxonomy apparently implicitly is.
  • "[...] a taxonomy is the network which results from connecting headwords with the genus terms in their definitions but the concept of genus term is not formally defined; [...]" -- Ann Copestake, "An approach to building the hierarchical element of a lexical knowledge base from a machine readable dictionary", 1990 .-- features a snipped of a taxonomy, as an example
  • "A Little History...
    Taxonomy originated in the life sciences and can be traced back to Aristotle's theory of categories. He 'espoused the idea that things are placed into the same category on the basis of what they have in common' (Taylor 1999, p174) and are arranged hierarchically with things either inside or outside the container. [...] One tool [...] is a taxonomy: a structured, often hierarchical, classification system of concepts or subject categories. Taxonomies speed up the process of retrieving records because end users can select from subject categories or concepts. This enables them to narrow the search field and find relevant information rather than relying solely on a blank text search field and their ability to construct an effective query. Taxonomies also provide "serendipitous guidance" by providing additional information that can be inferred by seeing where the concept is placed within the context of the taxonomy (Bruno and Richmond 2003, p45). [...] There are also worthwhile pre-built taxonomies in the public domain. The Taxonomy Warehouse (http://www.taxonomywarehouse.com/) provides a free directory of 501 taxonomies, thesauri, classification schemes and other authority files from around the world, plus information about taxonomy references, resources and events. The taxonomies are classified by 73 subject domains, such as patents, real estate, and taxation, each with ordering instructions." -- Susan Cisco, Wanda K. Jackson, "Demystifying Taxonomies : Taxonomy: Make or Buy"
  • "An alternative approach is to use a taxonomy to classify items. A taxonomy is a
    controlled vocabulary for classifying information." -- Rebecca H. Augustyniak, Dawn B. Aguero, Amy M. Finley, "Transitioning from Knowledge Management to Portals: Creating Customized Data Delivery for End-Users"
  • taxonomy vs ontology (very poorly researched: contains invalid claims like "Currently ontologies and taxonomies are all hand-built."): "[...] ontologies, which can be described as more formal versions of traditional taxonomies or Roget-type thesauri (Gruber 1993). [...] Somewhere in between lie taxonomies and browsable hierarchies which are clearly less rigorous than a fully specified ontology." -- Christopher Brewster, Yorick Wilks, "Ontologies, Taxonomies, Thesauri: Learning from Texts"
  • "In the evolution of knowledge management, organising information into an intuitive topical hierarchy or taxonomy has proven to be an efficient and productive way for end users to not only find, access and retrieve but also to discover information (Logan & Knox 2003:2). [...] This chapter will investigate the origins of taxonomies; define taxonomies, describe why taxonomies are viewed as a solution within information and knowledge management, as well as the benefits of taxonomies in organisations." -- Marie-Louise Fouché, "The Role Of Taxonomies In Knowledge Management", 2006
Additional notes: That's all. For now.<<



9.3.07

Wordmap Taxonomy Viewer: Link tot

Der in meinem Diplomarbeit-Recherche-Blog als Quelle angegebene Link zum Wordmap Taxonomy Viewer von Wordmap Ltd ist offensichtlich tot. Am 7. Februar 2007 gaben die Taxonomie-Berater Earley & Associates bekannt, dass sie die Wordmap Ltd. übernommen haben.

Etliche Links der Wordmap-Site sind tot, so auch etliche Treffer, die von Google auf die Site führen. Während die Site auf der Startseite noch vollmundig "View all downloadable white papers" anbietet, sieht blockt die tatsächliche White-Papers-Seite erstmal ab: "Register for taxonomy demos, white papers and newsletters". -- Ob das dort bereits seit vor der Aquisition durch Earley & Ass. steht oder erst seit dem 7.&nsbp;Februar, ist nicht zu erkennen. Auch wenn die Startseite nun durch ein "lease explore our site to understand more." beglückt, ist der Wordmap Taxonomy Viewer nach kurzer Suche bei Google als tatsächlich unmittelbar ansehbare Version (Java, ~ 2 MB Download) zu finden.<<



8.3.07

Google-Scholar-Treffer zu den verschiedenen Themen

(Cite Seer (Heimat-Domain) scheint im Moment etwas down zu sein. Liefert jedenfalls keine Ergebnisse. Deswegen fange ich bei Google Scholar an. BTW: Gibt es inzwischen bessere Suchmaschinen für wissenschaftliche Arbeiten? Open Access ist ja seit meiner Diplomarbeit zu einem großen Thema geworden.) Die allein stehenden, fett geschriebenen Stichworte vor dem Doppelpunkt führen jeweils zu einer Suche nach der Zielsetzung ("objective") des jeweiligen Themas.<<


      
Update: Treffer zu den verschiedenen Themen

7.3.07

Was ich außerdem in meinen Diplomarbeit-betreffenden Blogs gefunden habe

Nachdem ich unlängst alle meine Diplomarbeit-bezogenen Blogs nachträglich mit Tags versehen habe, sind die Blogs jetzt auch ohne Inhaltsverzeichnis nach Themen aufschlagbar. + Definitionen heraussuchen erledigt; evtl. als Grundlage/Ausgangspunkt verwenden.
+ Zielsetzungen der einzelnen Graphen(-Systeme), etwa: Vokabular, ordnen erledigt
+ Gemeinsamkeiten und Unterschiede der verschiedenen Gegenstände (Tabelle)
+ Glossare zum Thema abklappern
+ Bibliographien zum Thema auftreiben<<


      
Update: 20070308.16-38h MEZ: erledigte Aufgaben abgehakt

6.3.07

Update 3: Ontology, taxonomy, terminology, controlled vocabulary, thesaurus, and classification. How are they related to each other?


Antworten auf diese Frage könnten auch in Recherche-Ergebnisse Thesaurus-Visualisierer und Recherche – Auswertung gelistet sein. -- Diese beiden Blögge wurden bisher nicht begutachtet.

Evtl. könnte auch eine Suche nach allen in der Überschrift genannten Begriffen weiterhelfen, jedoch vermutlich weniger eine bei Google als bei wissenschaftlicheren Quellen.


Update:
Im alten MOM-Blog gibt es einen auf deutschsprachige Quellen gestützten englischsprachigen Artikel "Cleaning up the confusion about thesauri and classifications". Auch Inhalte dieses Artikels könnten für die Recherche wertvoll sein.<<



frühere Version dieses Postings

1.3.07

Update 2: Ontology, taxonomy, terminology, controlled vocabulary, thesaurus, and classification. How are they related to each other?


Antworten auf diese Frage könnten auch in Recherche-Ergebnisse Thesaurus-Visualisierer und Recherche – Auswertung gelistet sein. -- Diese beiden Blögge wurden bisher nicht begutachtet.

Update:
Evtl. könnte auch eine Suche nach allen in der Überschrift genannten Begriffen weiterhelfen, jedoch vermutlich weniger eine bei Google als bei wissenschaftlicheren Quellen.<<



frühere Version dieses Postings