Predicting The Future with MFHD


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In this talk for Evergreen International Conference 2009, David Fiander of the University of Western Ontario discussed MARC Format for Holdings Data and the challenges faced in implementing MFHD for Evergreen.

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  • This primarily an introduction to MFHD and a description of how some of the quirks in the standard make it difficult to implement. I'll also spend some time complaining about journal publishers.
  • Predicting The Future with MFHD

    1. 1. Using MFHD to Predict the Future David J. Fiander
    2. 2. Publication Patterns <ul><li>Published Monday – Saturday, except for Christmas Day. Issues are identified by date. </li></ul><ul><li>Published weekly on Thursday, except for a double issue in the last two weeks of December. Issues are numbered continuously and four volumes are published annually, starting in Jan, Apr, Jul, Oct. </li></ul><ul><li>Published bimonthly, except monthly in Jan, Jul, Aug, Dec. Issue numbers restart in each volume, which starts in Jan </li></ul>
    3. 3. Extreme Publication Patterns <ul><li>Item is published every Monday and Thursday except for when New Years Day, the fourth of July, Labour Day, (American) Thanksgiving, and Christmas fall on a Monday or Thursday </li></ul>
    4. 4. 863: Enumeration & Chronology (AKA Holdings Data) <ul><li>$8: Linkage and sequence number </li></ul><ul><li>$a - $f: Enumeration </li></ul><ul><li>$i - $l: Chronology </li></ul><ul><li>$w: Break indicator </li></ul><ul><li>$x, $z: Nonpublic & public notes </li></ul><ul><li>863 41 $8 1.1 $a 1 $b 5 $i 1990 $j 05 </li></ul>
    5. 5. 853: Caption and Pattern 1: Caption <ul><li>$8: Field link and sequence number </li></ul><ul><li>$a - $f: Enumeration </li></ul><ul><li>$u: “Bib. units per next higher level” </li></ul><ul><li>$v: Numbering continuity </li></ul><ul><li>$i - $l: Chronology </li></ul><ul><li>853 20 $8 1 $a v. $b no. $u 12 $v r $i (year) $j (month) </li></ul>
    6. 6. Formatting <ul><li>853 20 $8 1 $a v. $b no. $u 12 $v r $i (year) $j (month) </li></ul><ul><li>863 41 $8 1.1 $a 3 $b 5 $i 1990 $j 05 </li></ul><ul><li>863 41 $8 1.2 $a 3 $b 6 $i 1990 $j 06 </li></ul><ul><li>863 41 $8 1.3 $a 3 $b 7 $i 1990 $j 07 </li></ul><ul><li>863 41 $8 1.4 $a 3 $b 8 $i 1990 $j 08 </li></ul><ul><li>v.3:no.5 (1990:May) – v.3:no.8 (1990:Aug) </li></ul>
    7. 7. 853: Caption and Pattern 2: Pattern <ul><li>$w: Frequency </li></ul><ul><li>$x: Calendar change </li></ul><ul><li>$y: Regularity pattern </li></ul><ul><li>853 20 $81$av.$bno.$u20$vr$i(year)$j(month) $w s $x 01 $y pd01,15 $y od0115,0715,0815,1215 </li></ul>
    8. 8. Patterns are Easy for People <ul><li>Published monthly on the second Wednesday, except in April, when it's published on the second Thursday, and May, when it's published on the first Wednesday. </li></ul>
    9. 9. Patterns are Hard for Computers <ul><li>$ypw02we # 2 nd We </li></ul><ul><li>$ypw0402th,0501we # Apr: 2 nd Th, May:1 st We </li></ul><ul><li>$yow0402we,0502we # Not 2 nd We in Apr, May </li></ul><ul><li>How do we calculate the date of the issue after 2009/03/11? </li></ul>
    10. 10. Challenges <ul><li>Quirks in the Standard </li></ul><ul><li>Bad data </li></ul><ul><li>Poor interoperability between systems </li></ul>
    11. 11. Credits <ul><li>“ Grandmother Predictions” by Flickr user stevec77. </li></ul><ul><li>CONSER Publication Patterns Initiative. </li></ul>
    12. 12. Licence <ul><li>Copyright © 2009, David J. Fiander </li></ul><ul><li>This work is licensed under the Creative Commons Attribution-Noncommercial 2.5 Canada License. To view a copy of this license, visit or send a letter to Creative Commons, 171 Second Street, Suite 300, San Francisco, California, 94105, USA. </li></ul>