Re: [TaxoCoP] Orphan terms in thesauruses
- William Denton's "How to Make a Faceted Classification and Put it on the Web" is a good place to start, in my experience.
On Fri, Jun 19, 2009 at 2:41 AM, Gabriel Tanase <gabtanase@...> wrote:
Could you recommend a book or two, or perhaps a series articles available online, from which a beginner might learn about, and how to do, facet analysis? Doesn't need to be a whole book dedicated to this; one good chapter would do.
Thank you very much,
http://www.linkedin.com/in/gabrieltanase2009/6/18 Leonard Will <L.Will@...>
On Tue, 16 Jun 2009 at 08:24:02, Webindexing
<webindexing@...> wrote>There is (I think) a general assumption that all terms in a thesaurus>Thanks,
>should be neatly grouped under, say, 20 top terms. In practice, it is
>often difficult to allocate a broader term to every term in a thesaurus
>without some distortion.
>Is there any reason why every term has to have a broader term? Is there
>anything wrong with many top terms? I am looking for general principles
>that would apply across a range of projects.
I think that it is often helpful to apply facet analysis to the concepts
being organised, so that we group concepts depending on the fundamental
categories to which they belong. Thus we can group them into facets such
as "objects", "materials", "living things", "people", "organizations",
"abstract concepts", "places" and so on. These facet names can become
top terms of hierarchies.
Each orphan term will belong to a facet such as these, and this is the
initial step in constructing hierarchies, because hierarchical
relationships can only apply to concepts in the same facet. (Part/whole
relationships may sometimes break this rule, but these should be used
only in certain specific and limited circumstances.)
This top-down approach has to be used in conjunction with the bottom-up
approach of examining concepts and considering what relationships they
should have, but it does avoid having a lot of orphans.
Willpower Information (Partners: Dr Leonard D Will, Sheena E Will)
Information Management Consultants Tel: +44 (0)20 8372 0092
27 Calshot Way L.Will@...
EN2 7BQ, UK http://www.willpowerinfo.co.uk/
- GabrielMy book 'Organising Knowledge' has an extensive discussion of facets and facet analysis with examples and further references. Facet analysis is a process of abstraction and is not always intuitive to the "general user" (which can compromise their ability to exploit facets in categorisation and search/browse), and it can fall victim to logical "high science" where facets are developed because they are possible or logical, rather than because they reflect important user perspectives on content.POn Jun 19, 2009, at 5:41 PM, Gabriel Tanase wrote: