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Media Matching Algorithm

STANDARD BIBLIOGRAPHIC NUMBER MATCH

010 - LCCN withCrossreferencing (hyphens and spaces are ignored, upper case letters are normalized)

020 - ISBN withCrossreferencing (match on first occurrence, hyphens and spaces are ignored, upper case letters are normalized)

022 - ISSN withCrossreferencing (match on first occurrence, hyphens and spaces are ignored, upper case letters are normalized

028 40 - Publisher's number (match on first occurrence)

Validation of all number matches on the following:

Leader position 6 and 7

245 $a 15 characters (normalize upper case letters, special characters are ignored; checks field 008 positon 35-37 for Laguage to decide which article to drop in the normalization of field 245)

TEXT-BASED MATCH

245 $a (all characters) $b 15 characters

Validate leader position 6 and 7

Validate 245 $h 7 characters

Validate 245 $p 15 characters

Validate 260 $b Publisher's name (first 5 words; match any one word), 260 $c Publisher's Date (first 5 dates)

Validate 440 $a 15 characters (normalizeFirstArticle)

Validate 710 $a string of first 15 characters. A valid match is when this set of characters appears in any of a record's 710 field.

Note: This does not mean that "all" 710 fields must match, rather only that the first 15 characters from one of the 710 fields matches.

Notes: