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Detecting approximately duplicate bibliographic records with text algorithms: experience of creating a union catalogue of libraries at the Warsaw University of Technology

Płoszajski G.

TASK Quarterly : scientific bulletin of Academic Computer Centre in Gdansk

2003

Vol. 7, No 2

294-297

The paper describes a fault-tolerant method of selecting duplicate bibliographic records in catalogues. The method is based on the use of text algorithms; decisions are suggested to librarians who make the final decision. The method was applied to four library catalogues at the Warsaw University of Technology which were compared with the catalogue of the main library. Process of joining catalogues was conducted differently for non-duplicate records and for duplicate ones. Thanks to this method, a significant portion of records in the catalogues of the joining libraries had been found to be duplicate before the catalogues were added. The algorithms proved helpful in assuring high quality of information.