Mapping Bibliographic Records with Bibliographic Hash Keys

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poster presentation about bibkey at the ISI 2009

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Mapping Bibliographic Records with Bibliographic Hash Keys

  1. 1. Mapping Bibliographic Records with Bibliographic Hash Keys Jakob Voß Verbundzentrale des GBV (VZG) 11. Internationales Symposium für Informationswissenschaft (ISI 2009)
  2. 2. the problem citation record data document same?
  3. 3. Bourne, C.P.; Hahn, T.B. (2003): A History of Online Information Services, 1963-1976. – Cambridge, Mass.; London: MIT Press. Charles P. Bourne and Trudi Bellardo Hahn, A History of Online Information Services, 1963-1976 (Cambridge: MIT Press, 2003), examples 004A $00262025388 011@ $a2003 021A $aA @history of online information services, 1963 - 1976 028A $dCharles P.$aBourne$9383311691 028B/01 $dTrudi Bellardo$aHahn$9271366931 033A $pCambridge, Mass. [u.a.]$nMIT Press 034D $aXVI, 493 S @book{Bourne2003, title={A History of Online Information Services, 1963-1976}, author={T.B. Hahn and C.P. Bourne}, year={2003},
  4. 4. solutions <ul><li>persistent identifiers </li></ul><ul><li>duplicate detection </li></ul><ul><li>fingerprints </li></ul>
  5. 5. persistent identifiers
  6. 6. duplicate detection <ul><li>multiple </li></ul><ul><li>comparisons </li></ul>
  7. 7. fingerprints (bibkey)
  8. 8. specification of bibkey <ul><li>selection of fields </li></ul><ul><li>normalization </li></ul><ul><li>concatenating </li></ul><ul><li>prefix and hashing </li></ul>
  9. 9. Bourne, C.P. ; Hahn, T.B. ( 2003 ): A History of Online Information Services, 1963-1976 . – Cambridge, Mass.; London: MIT Press. Charles P. Bourne and Trudi Bellardo Hahn , A History of Online Information Services, 1963-1976 (Cambridge: MIT Press, 2003 ), selection of fields authors/editors title year 004A $00262025388 011@ $a 2003 021A $a A @ history of online information services, 1963 - 1976 028A $d Charles P. $a Bourne $9383311691 028B/01 $d Trudi Bellardo $a Hahn $9271366931 033A $pCambridge, Mass. [u.a.]$nMIT Press 034D $aXVI, 493 S @book{Bourne2003, title= { A History of Online Information Services, 1963-1976 }, author={ T.B. Hahn and C.P. Bourne }, year={2003},
  10. 10. normalization <ul><li>lowercase, letters, digits </li></ul>Charles P. Bourne c.bourne Trudi Bellardo Hahn t.hahn <ul><li>unicode normalization form compatibility composition (NFKC) </li></ul>
  11. 11. composing the hash bibkey level 1 1 4ed100f75dd4459cffeb272bdbc2d1e7 title authors year sort and join by “,” prefix “1” and MD5 hash bibkey level 0 ahistoryofonlineinformationservices19631976 [ t.hahn , c.bourne ] 2003
  12. 12. usage in BibSonomy aggregated tag cloud independent bibliographic records bibkey
  13. 13. usage in web services record bibkey response service
  14. 14. challenges <ul><li>determining </li></ul><ul><ul><li>all authors </li></ul></ul><ul><ul><li>the full title </li></ul></ul><ul><ul><li>the year </li></ul></ul><ul><li>problematic works </li></ul><ul><ul><li>no authors </li></ul></ul><ul><ul><li>standard titles (“Introduction”, “News”...) </li></ul></ul><ul><li>unicode normalization </li></ul>
  15. 15. icons based on www.gbv.de/wikis/cls/bibkey

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