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BIBFRAME  May 2013

BIBFRAME May 2013

Subject:

Re: Instance of ISBNs in MARC records

From:

Shlomo Sanders <[log in to unmask]>

Reply-To:

Bibliographic Framework Transition Initiative Forum <[log in to unmask]>

Date:

Tue, 21 May 2013 09:28:30 +0000

Content-Type:

text/plain

Parts/Attachments:

Parts/Attachments

text/plain (1 lines)

Are you counting 10 digit and 13 digit as 2 different ISBNs?

Thanks,
Shlomo

Experience the all-new, singing and dancing interactive Primo brochure 


-----Original Message-----
From: Bibliographic Framework Transition Initiative Forum [mailto:[log in to unmask]] On Behalf Of Tennant,Roy
Sent: Monday, May 20, 2013 22:33
To: [log in to unmask]
Subject: Re: [BIBFRAME] Instance of ISBNs in MARC records

Corrected figures. The main difference is that the position of single instances and 4 instances switched.

NO. of Recs ISBNs Percent

230444194  0 77.71%
 55668178  2 18.77%
  4766652  1  1.61%
  3708352  4  1.25%
   616623  3  0.21%
   411230  6  0.14%
   125715  8  0.04%
    65796  5  0.02%
    45304 10  0.02%
    30155 12    0.01%

Roy

On 5/20/13 5/20/13 • 11:29 AM, "Tennant,Roy" <[log in to unmask]<mailto:[log in to unmask]>> wrote:

Mea culpa. I discovered that my algorithm for producing the numbers below was fatally flawed. I was only checking for the existence of an 020 field, when in fact I should have been checking for the existence of an 020 $a, since you can have $c "Terms of availability" without a $a. Therefore, the numbers below are over-counting the existence of ISBNs. I will see if I can correct the algorithm and provide more accurate numbers. So sorry for the oversight.
Roy

On 5/20/13 5/20/13 € 8:06 AM, "Tennant,Roy" <[log in to unmask]<mailto:[log in to unmask]>> wrote:

As requested, numbers from WorldCat, the 1 May 2013 Research snapshot, with 296,589,450 records:

NO. of Recs ISBNs Percent

230402772  0 77.68%
58861390  2 19.85%
  4269211  4  1.44%
  1659221  1  0.56%
   515674  6  0.17%
   466645  3  0.16%
   151133  8  0.05%
    84572  5  0.03%
    51967 10  0.02%
    33372 12  0.01%

Keep in mind that WorldCat, being the largest library union database in the world, includes a great deal of material that pre-dates the establishment of the ISBN.
Roy

From: Shlomo Sanders
<[log in to unmask]<mailto:[log in to unmask]><mailto:[log in to unmask]>

Reply-To: Bibliographic Framework Transition Initiative Forum <[log in to unmask]<mailto:[log in to unmask]><mailto:[log in to unmask]>>
Date: Monday, May 20, 2013 5/20/13 € 6:19 AM
To: "[log in to unmask]<mailto:[log in to unmask]><mailto:[log in to unmask]>"
<[log in to unmask]<mailto:[log in to unmask]><mailto:[log in to unmask]>>
Subject: Re: [BIBFRAME] Instance of ISBNs in MARC records

From a large sample of data that we get from publishers:

  *   Only 24.5% with one ISBN!
  *   40% with multiple ISBNs!
  *   Largest group has no ISBN!


ISBN Count      Percentage of records with X ISBNs
0       38.57%
1       24.49%
2       17.00%
3       5.88%
4       10.77%
5       2.14%
6       0.65%
7       0.09%
8       0.12%
9       0.24%
10      0.04%


Thanks,
Shlomo

Experience the all-new, singing and dancing interactive Primo brochure


-----Original Message-----
From: Bibliographic Framework Transition Initiative Forum [mailto:[log in to unmask]] On Behalf Of J. McRee Elrod
Sent: Sunday, May 19, 2013 20:34
To: [log in to unmask]<mailto:[log in to unmask]><mailto:[log in to unmask]>
Subject: Re: [BIBFRAME] Instance of ISBNs in MARC records

In SLC's database of over 300,000 records, over 169,000 have no ISBN, over 114,000 have one, over 19,000 have two, and the number of ISBNs ranges up to 36 in one record.

For us, Instances can't be based on ISBNs.


Total Records: 315389

020s  Records

00 169021
01 114221
02  19745
03   7403
04   3238
05   1149
06    344
07    118
08     29
09     42
10     11
11     16
12     10
13     12
14      4
15      5
16      3
17      7
18      1
19      1
21      1
22      1
23      1
25      3
27      1
28      1
36      1



   __       __   J. McRee (Mac) Elrod
([log in to unmask]<mailto:[log in to unmask]><mailto:[log in to unmask]>)
  {__  |   /     Special Libraries Cataloguing   HTTP://www.slc.bc.ca/
  ___} |__ \__________________________________________________________



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