Cambridge University Library Existing records Problems and Solutions
Cambridge University Library The current situation • 2. 5 million bib records in six libraries@cambridge databases • 1 million short records • At 10 books/hour it would take one cataloguer 62 years (10 over 6 years) • Total cost (just salary) approx £ 1. 5 million
Cambridge University Library Deduplication • Move to single bibliographic model? • Deciding on ‘best’ record, manually relinking holdings/deleting surplus bibs • Colleges – c. 50% duplication • Departments/Others – c. 25% duplication • A lot of relinking (1 M records affected? )
Cambridge University Library • For single cataloguer – another 40 years work? Overall 100 years? • Or for 10 cataloguers, 10 years? • Total cost rises to £ 2. 5 million • And that’s a lot of money …
Cambridge University Library • Prohibitively expensive/time consuming to handle these problems by manual recataloguing alone • Particularly in the light of a likely migration to a new Library Management System (Ex Libris or otherwise) in the medium term • A non-migratable situation? • Solutions?
Cambridge University Library • Automated Cataloguing Tools! • update@cambridge - short record enrichment • Automated MARC correction • Deduplication routines • Order important – need full, well coded records to deduplicate effectively
Cambridge University Library How to get from this …
Cambridge University Library to this!
Cambridge University Library update@cambridge • • Record enrichment program Web interface for use in libraries Looks for match in UL database If found, corrects MARC in UL record (if necessary) and overlays local record • Match rates 60 -70% on average
Cambridge University Library
Cambridge University Library • In testing with 8 libraries • So far: 34, 000 bibs processed 21, 000 bibs enriched • Match rate of 62% • If all 1 M short records were fed through, 620, 000 records would be updated, leaving only 380, 000 for manual recataloguing.
Cambridge University Library MARC correction • Like the Bib Checker program, but corrects errors instead of just warning you • Already built into the update@cambridge program • Could be rolled out into other areas for large scale MARC correction
Cambridge University Library How to get from this • • • =LDR 00472 nam\2200157a4500 =001 662002 =005 20071205064734. 0 =008 071129 s 1985\\nyua\\ 01 engd =020 \$a 9780961751111 =100 1$a. Broecker, W. S. , $d 1931=245 10$a. How to build a habitable planet ; $c. By Wallace S. Broecker. =260 \$a. New York ; $b. Eldigio Press, $cc 1985 =300 \$a 291 p $bill $c 23 cm =504 \$a. Includes index. =650 $a. Astronomy. =650 $a. Astrophysics.
Cambridge University Library to this! • • • =LDR 00453 nam 2200157 a 4500 =001 662002 =005 20071205064734. 0 =008 071129 s 1985\\nyua\\ 01 engd =020 \$a 9780961751111 =100 1$a. Broecker, W. S. , $d 1931=245 10$a. How to build a habitable planet /$cby Wallace S. Broecker. =260 \$a. New York : $b. Eldigio Press, $cc 1985. =300 \$a 291 p. : $bill. ; $c 23 cm. =504 \$a. Includes index. =650 $a. Astronomy. =650 $a. Astrophysics.
Cambridge University Library Lists corrections • • • • Bib id: 662002 How to build a habitable planet ; By Wallace S. Broecker. 100: UPDATE: Spaces inserted between initials in subfield _a 245: UPDATE: By uncapitalised at start of subfield c 245: UPDATE: Space forward slash inserted before subfield _c 260: UPDATE: Full stop inserted at end of field 260: UPDATE: Space colon inserted before subfield _b 300: UPDATE: Full stop inserted after the p in pagination 300: UPDATE: Full stop inserted at end of field 300: UPDATE: Illustration abbreviation has been corrected 300: UPDATE: Space colon inserted before subfield _b 300: UPDATE: Space inserted between digits and cm 300: UPDATE: Space inserted between digits and p in pagination 300: UPDATE: Space semi-colon inserted before subfield c
Cambridge University Library Deduplication • • • Routines and algorithms: Find duplicate records Find ‘best record’ Relink holdings to this record Run it through MARC correction routine Delete duplicate bibs
Cambridge University Library • Tools for Cataloguers, not replacements! • Does the stuff programs do well, allowing you to concentrate on what humans do well • Won’t do all the work, just makes the project feasible
Cambridge University Library What you can do • Record sharing • Adhere to the Bibliographic Standard • Make sure local information is in the holding record or correctly coded • If you are interested in short record enrichment, MARC correction or deduplication, get in touch
Cambridge University Library Questions?
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