Common pitfalls in vocabulary selection - Revision history

Dbalzer at 12:17, 9 May 2011

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Dbalzer at 09:52, 9 May 2011

2011-05-09T09:52:11Z

Dbalzer at 09:24, 5 April 2011

2011-04-05T09:24:09Z

Dbalzer at 09:18, 5 April 2011

2011-04-05T09:18:21Z

Dbalzer: Created page with "''From the TC 372 Workshop Compendium'' The EN 15907 standard often refers to a '''controlled vocabulary''' from which '''values for certain elements''' should be taken. The..."

2011-04-05T08:53:08Z

Created page with "''From the TC 372 Workshop Compendium'' The EN 15907 standard often refers to a '''controlled vocabulary''' from which '''values for certain elements''' should be taken. The..."

New page

''From the [[TC 372 Workshop Compendium]]''

The EN 15907 standard often refers to a '''controlled vocabulary''' from which '''values for certain elements''' should be taken. There are several approaches to selecting, defining, or using such vocabularies, some of which can cause problems.

{| style="float: right; border: 1px solid #BBB; margin: .46em 0 0 .2em;"
|-
| valign="top" width="405px" |[[File:Marc-music.png|400px]]<br />
<span style="font-size:8pt">
From: http://www.loc.gov/standards/valuelist/marcmuscomp.html
</span>

| valign="top" width="405px" |
Bibliographic standards such as MARC employ a multitude of '''code lists''', some of which could be useful for filmographic metadata.

Some scrutiny is recommended, however, before a code list is adopted from a community with a '''different focus'''. Using this example, how would we describe a flamenco theme that was composed for a film?
|}

@@ Line 16: / Line 16: @@
 Some scrutiny is recommended, however, before a code list is adopted from a community with a '''different focus'''. Using this example, how would we describe a flamenco theme that was composed for a film?
-This is an example of a vocabulary with '''non-disjoint concepts'''. Motion picture music can be from any musical genre. It describes music under the aspect of usage, rather than under the aspect of artistic style. Mixing of aspects often causes a dilemma for indexers, forcing them to take more or less arbitrary decisions.
+This is an example of a vocabulary with '''non-disjoint concepts'''. Motion picture music can belong to any musical genre. The term describes music under the aspect of usage, rather than under the aspect of artistic style. Mixing several aspects often causes a dilemma for indexers, forcing them to take more or less arbitrary decisions.
 |}

← Older revision		Revision as of 09:52, 9 May 2011
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	Some scrutiny is recommended, however, before a code list is adopted from a community with a '''different focus'''. Using this example, how would we describe a flamenco theme that was composed for a film?		Some scrutiny is recommended, however, before a code list is adopted from a community with a '''different focus'''. Using this example, how would we describe a flamenco theme that was composed for a film?
		+
		+	This is an example of a vocabulary with '''non-disjoint concepts'''. Motion picture music can be from any musical genre. It describes music under the aspect of usage, rather than under the aspect of artistic style. Mixing of aspects often causes a dilemma for indexers, forcing them to take more or less arbitrary decisions.
	\|}		\|}

@@ Line 53: / Line 53: @@
 | valign="top" width="405px" |
-Unsupervised '''automatic indexing''' will almost inevitably produce a significant fraction of '''ludicrous results'''.
+'''Unsupervised automatic indexing''' will almost inevitably produce a significant fraction of ludicrous results.
-This book has been assigned to the Music category by analysing titles for occurrences of supposedly related terms such as instruments.
+This book has been assigned to the ''Music'' category by analysing titles for occurrences of supposedly related terms such as ''instruments''.
 |}

← Older revision		Revision as of 09:18, 5 April 2011
Line 15:		Line 15:

	Some scrutiny is recommended, however, before a code list is adopted from a community with a '''different focus'''. Using this example, how would we describe a flamenco theme that was composed for a film?		Some scrutiny is recommended, however, before a code list is adopted from a community with a '''different focus'''. Using this example, how would we describe a flamenco theme that was composed for a film?
		+	\|}
		+
		+	{\| style="float: right; border: 1px solid #BBB; margin: .46em 0 0 .2em;"
		+	\|-
		+	\| valign="top" width="405px" \|[[File:Voc-country.png\|400px]]<br />
		+	<span style="font-size:8pt">
		+	From: http://www.ip.mpg.de/ww/en/pub/library/research/systematic/countrycode.cfm
		+	</span>
		+
		+	\| valign="top" width="405px" \|
		+	Maintaining your '''own country code list''' is generally not a good idea, at least for those countries where the U.N. and the ISO 3166 committee will do the maintenance work for you.
		+
		+	Alternative lists will be needed for countries that no longer exist, for former colonies, and for non-sovereign geographic entities in general.
		+
		+	This is a section from a list maintained by the Max Planck Institute for Intellectual Property Law, duplicating most of ISO 3166 with an incompatible encoding.
		+	\|}
		+
		+	{\| style="float: right; border: 1px solid #BBB; margin: .46em 0 0 .2em;"
		+	\|-
		+	\| valign="top" width="405px" \|[[File:British-museum-1.png\|400px]]<br />
		+	<span style="font-size:8pt">
		+	From: http://www.britishmuseum.org/research/search_the_collection_database.aspx
		+	</span>
		+
		+	\| valign="top" width="405px" \|
		+	Categories that make sense to '''in-house''' staff do not necessarily make sense to the '''rest of the world'''.
		+
		+	While British Museum employees may find it natural to look for badges in the coins and medals department, few users of their collection database will hit on this idea in the first place.
		+	\|}
		+
		+	{\| style="float: right; border: 1px solid #BBB; margin: .46em 0 0 .2em;"
		+	\|-
		+	\| valign="top" width="405px" \|[[File:Ulib-book.png\|400px]]<br />
		+	<span style="font-size:8pt">
		+	From: http://www.ulib.org/
		+	</span>
		+
		+	\| valign="top" width="405px" \|
		+	Unsupervised '''automatic indexing''' will almost inevitably produce a significant fraction of '''ludicrous results'''.
		+
		+	This book has been assigned to the Music category by analysing titles for occurrences of supposedly related terms such as instruments.
	\|}		\|}