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OutLook Matching Algorithm
STANDARD BIBLIOGRAPHIC NUMBER MATCH
022 - ISSN withCrossreferencing (match on first occurrence - hyphens and spaces are ignored, upper case letters are normalized)
020 - ISBN withCrossreferencing (match on first occurrence - hyphens and spaces are ignored, upper case letter are normalized)
010 - LCCN withCrossreferencing (hyphens and spaces are ignored, upper case letter are normalized)
Validation on all number matches on:
245 $a 10 characters (normalize upper case letters, special characters are ignored; check field 008 position 35-37 for Language to decide which article to drop in the normalization of field 245)
245 $a (all characters) use filing indicator contatenated with $b (all characters) normalize upper case letters
Validate Leader position 6 and 7 (mandatory)
Validate 245 $h first 10 characters; $p first 10 characters as separate validation points, no concatenation
Validate 100, 110, 111 $a first 100 characters (hyphens and spaces are ignored, and upper case letters are normalized if more than one author tag, lowest numbered tag is used)
Validate 260 $b keyword search of first 5 words; match any one word; 260 $c match year with any of first 5 years
Note: Abscence of a VALIDATION subfield in any match point WILL inhibit an otherwise valid match.
We are recommending that the leader check be dropped for numeric matches.