LISTSERV mailing list manager LISTSERV 16.5

Help for CODE4LIB Archives


CODE4LIB Archives

CODE4LIB Archives


CODE4LIB@LISTS.CLIR.ORG


View:

Message:

[

First

|

Previous

|

Next

|

Last

]

By Topic:

[

First

|

Previous

|

Next

|

Last

]

By Author:

[

First

|

Previous

|

Next

|

Last

]

Font:

Proportional Font

LISTSERV Archives

LISTSERV Archives

CODE4LIB Home

CODE4LIB Home

CODE4LIB  April 2011

CODE4LIB April 2011

Subject:

Re: LCSH and Linked Data

From:

Kyle Banerjee <[log in to unmask]>

Reply-To:

Code for Libraries <[log in to unmask]>

Date:

Thu, 21 Apr 2011 13:14:16 -0700

Content-Type:

text/plain

Parts/Attachments:

Parts/Attachments

text/plain (67 lines)

The short version of this lengthy post is that there's really no value in
worrying about how to handle precoordinated strings except for purposes of
busting them up.

The Rube Goldberg style precoordination rules that cause so many headaches
were developed to address challenges brought about by paper card catalogs.
The physicality of paper required a mechanism to ensure a limited number of
cards would file together. Unless you still use a paper catalog, they're as
relevant as spurs are to race car drivers.

The order you see in the MARC record mimics the paper rules exactly (because
MARC was used mostly for card printing for decades) and has also lead to
literally tens of millions of unique subject strings as there are so many
permutations.  As a practical matter, even highly trained librarians cannot
guess how these were put together without going through a substantial
research process.

I hate to dig up stuff written in the 1920's that's rammed down the throats
of first semester library school students. However, in the case at hand,
logic from these works has direct application for purposes of making MARC
data usable.

To summarize, the concept is that subjects can be broken down into aspects
(i.e. facets) with the primary ones time, place, action, material, and
personality -- you can think of this last category as natural groupings of
the type that standardized subdivisions can be applied to such as materials,
animals, corporate entitities, diseases, body parts, etc.

It's much better to think of the facets (time, place, etc) as attributes
rather than occuring in any particular order as this allows interactive and
relatively precise drilling through huge amounts of data. You'll notice that
good search engines effectively do just that.

kyle




One of the challenges for pre-coordinated strings at least as currently
> implemented (that facets evade) is that no order will suit everyone. Which
> of the following is better?
>
> Dwellings $z Australia $x History $y 20th century
> Dwellings $z Indonesia $x Economic aspects
> Dwellings $z Indonesia $x Psychological aspects
> Dwellings $z Indonesia $x Social aspects
> Dwellings $z Ireland $x Economic aspects
> Dwellings $z Ireland $x Psychological aspects
> Dwellings $z Ireland $x Social aspects
> Dwellings $z Japan $x Economic aspects
> Dwellings $z Japan $x Psychological aspects
> Dwellings $z Japan $x Social aspects
>
> OR (mostly current practice)
>
> *Dwellings $z Australia $x History $y 20th century  **Current practice
> Dwellings $x Economic aspects $z Indonesia
> Dwellings $x Economic aspects $z Ireland
> Dwellings $x Economic aspects $z Japan
> *Dwellings $x History $z Australia $y 20th century  **Airlie recommendation
> Dwellings $x Psychological aspects $z Indonesia
> Dwellings $x Psychological aspects $z Ireland
> Dwellings $x Psychological aspects $z Japan
> Dwellings $x Social aspects $z Indonesia
> Dwellings $x Social aspects $z Ireland
> Dwellings $x Social aspects $z Japan
>

Top of Message | Previous Page | Permalink

Advanced Options


Options

Log In

Log In

Get Password

Get Password


Search Archives

Search Archives


Subscribe or Unsubscribe

Subscribe or Unsubscribe


Archives

December 2019
November 2019
October 2019
September 2019
August 2019
July 2019
June 2019
May 2019
April 2019
March 2019
February 2019
January 2019
December 2018
November 2018
October 2018
September 2018
August 2018
July 2018
June 2018
May 2018
April 2018
March 2018
February 2018
January 2018
December 2017
November 2017
October 2017
September 2017
August 2017
July 2017
June 2017
May 2017
April 2017
March 2017
February 2017
January 2017
December 2016
November 2016
October 2016
September 2016
August 2016
July 2016
June 2016
May 2016
April 2016
March 2016
February 2016
January 2016
December 2015
November 2015
October 2015
September 2015
August 2015
July 2015
June 2015
May 2015
April 2015
March 2015
February 2015
January 2015
December 2014
November 2014
October 2014
September 2014
August 2014
July 2014
June 2014
May 2014
April 2014
March 2014
February 2014
January 2014
December 2013
November 2013
October 2013
September 2013
August 2013
July 2013
June 2013
May 2013
April 2013
March 2013
February 2013
January 2013
December 2012
November 2012
October 2012
September 2012
August 2012
July 2012
June 2012
May 2012
April 2012
March 2012
February 2012
January 2012
December 2011
November 2011
October 2011
September 2011
August 2011
July 2011
June 2011
May 2011
April 2011
March 2011
February 2011
January 2011
December 2010
November 2010
October 2010
September 2010
August 2010
July 2010
June 2010
May 2010
April 2010
March 2010
February 2010
January 2010
December 2009
November 2009
October 2009
September 2009
August 2009
July 2009
June 2009
May 2009
April 2009
March 2009
February 2009
January 2009
December 2008
November 2008
October 2008
September 2008
August 2008
July 2008
June 2008
May 2008
April 2008
March 2008
February 2008
January 2008
December 2007
November 2007
October 2007
September 2007
August 2007
July 2007
June 2007
May 2007
April 2007
March 2007
February 2007
January 2007
December 2006
November 2006
October 2006
September 2006
August 2006
July 2006
June 2006
May 2006
April 2006
March 2006
February 2006
January 2006
December 2005
November 2005
October 2005
September 2005
August 2005
July 2005
June 2005
May 2005
April 2005
March 2005
February 2005
January 2005
December 2004
November 2004
October 2004
September 2004
August 2004
July 2004
June 2004
May 2004
April 2004
March 2004
February 2004
January 2004
December 2003
November 2003

ATOM RSS1 RSS2



LISTS.CLIR.ORG

CataList Email List Search Powered by the LISTSERV Email List Manager