1. Emnekart Oslo 2006 Henrik Laursen 1 - Copenhagen University Library since 1482 - The Kings Library since 1660 - National Deposit Library since 1697 - Public Library since 1793 - 150 kilometres printed matters - electronic databases and periodicals - 500 employees -------------------------------------- - Henrik Laursen, research librarian (hhl@kb.dk) - Mads Henriksen, bachelor in philosophy (mhe@kb.dk) The Royal Library, Denmark

2. Emnekart Oslo 2006 Henrik Laursen 2 The incentive Subject catalogues from many merged libraries Subject catalogues from many periods Some subject catalogues are also shelf lists - with 3 sub-catalogues for different formats Historical knowledge is a prerequisite The project files includes 3 catalogues: Foreign books catalogue from 1486 – 1950 Systematic catalogue 1: 1950 – 1995 Systematic catalogue 2: 1995 

3. Emnekart Oslo 2006 Henrik Laursen 3 Why now? Retro-digitalization The foreign books catalogue from 1486 – 1950 is under digitalization. The books are searchable by author, title and shelf number. But not by subject. The catalogue covers 400.000 books.

4. Emnekart Oslo 2006 Henrik Laursen 4 The means Topic maps Topic is in our case the subject classification. The topics are scoped in Danish, English, alternative name, alternative spelling and classification code. Occurrence is a search-string in the online library base for books with the specific classification. Other occurrences could be references to online reference works. Associations are in the project limited to two types: ”Super-subclass” and ”Search also”

5. Emnekart Oslo 2006 Henrik Laursen 5 The conversion process -OCR of the typewritten catalogues using FineReader in ”count spaces”-mode -proofreading, esp. correcting indentation -running a perlscript that catches the hierarchical structure of the catalogues and prints a XML file -the resulting topicmap conforms to the ISO standard following the XTM1.dtd, the XML interchange syntax for ISO 13250 Topic Maps)

6. Emnekart Oslo 2006 Henrik Laursen 6 The 3-format catalogue

7. Emnekart Oslo 2006 Henrik Laursen 7 Topic example Etik Ethics Moral BC

8. Emnekart Oslo 2006 Henrik Laursen 8 Association example

9. Emnekart Oslo 2006 Henrik Laursen 9 Conclusions 1 TM creates coherence within the catalogues TMs are scalable 1: new catalogues can be included TMs are scalable 2: new associations ad libitum User friendliness: limit your search to a single subject in one catalogue or extend it to more subjects in more catalogues. Are scalable 3: subject specific thesauri can be added

10. Emnekart Oslo 2006 Henrik Laursen 10 Conclusions 2 Off spin without a topicmaps engine: subject hierarchy added to the online database subject search through different formats searchable catalogues as html-pages