1. October 21st, 2010 www.gbv.de Current trends in library search: From electronic card boxes to large scale, aggregated search engines Till Kinstler, kinstler@gbv.de Verbundzentrale des GBV (VZG)

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4. October 21st, 2010 www.gbv.de Taken from Avram, Henriette D.: The MARC Pilot Project. Final Report. Library of Congress, Washington, DC., 1968, http://www.eric.ed.gov/ERICWebPortal/detail?accno=ED029663 http://www.eric.ed.gov/ERICWebPortal/detail?accno=ED029663

5. October 21st, 2010 www.gbv.de 01410nam a2200349 i 4500 001 177062495 003 DE-601 005 20100706235250.0 008 950105s1957 xxu 000 0 eng d 016 7 $a 452218721 $2 DE-101 040 $a GyGoGBV $b ger $e rakwb 041 0 $a eng 044 $a xxu $a xxk 245 00 $a Information systems in documentation : $b based on the Symposium on Systems for Information Retrieval held at Western Reserve University, Cleveland, Ohio, in April, 1957 / $c ed.: Jesse H. Shera; A. Kent; J. W. Perry. 260 $a New York, NY [u.a.] : $b Interscience Publ., $c 1957. 300 $a XV, 639 S : $b Ill., graph. Darst ; $c gr. 8. 490 0 $a Advances in documentation and library science ; $v 2 653 0 $a Information storage and retrieval systems 700 1 $a Shera, Jesse H., $0 (DE-601)400477432. 700 1 $a Kent, A.. 700 1 $a Perry, J. W.. 710 2 $a Symposium on Systems for Information Retrieval $c (1957, Cleveland, Ohio) 711 2 $a Symposium on Systems for Information Retrieval $d (1957.04. : $c Cleveland, Ohio) 830 $v 2 $w (DE-601)129356271 950 $a Literaturrecherche $a Kongre � $2 GBV 050 0 $a Z695.92 060 0 $a Z 1008 082 00 $a 029.75 084 $a 06.74 ; Informationssysteme $2 bcl 084 $a 35.99 ; Chemie: Sonstiges $2 bcl 900 $a GBV $b SUB+Uni G � ttingen $d !FMAG! ZA 18582:2 $x L $z LC 954 $a 40 $b 742655784 $c 01 $d ZA 18582:2 $e u $x 0007

6. October 21st, 2010 www.gbv.de GBV (Common Library Network) ~ 400 (mainly academic) libraries ~ 120 million data records describing books, articles, digital objects,... available through these libraries What do we do with this data?

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12. October 21st, 2010 www.gbv.de „In addition, we have also found that the poor usability, high complexity, and lack of integration of many electronic resource discovery systems, have raised the entry threshold of information technology literacy. This acts as a barrier to information search and retrieval. […] Users find database structures hinder. They have to learn the procedural knowledge for using a particular database as well as have some basic knowledge of how the data table is organised and what subject matter the built-in thesauri refers to; both have limited transferability. The participants did not appear to lack information technology or digital literacy, as they had demonstrated they were able to use other internet-based search and retrieval tools.“ (Wong, W. ; Stelmaszewska, H. ; Barn, B. ; Bhimani, N. ; Barn, S.: JISC User Behaviour Observational Study: User Behaviour in Resource Discovery. Final Report / JISC. Version: November 2009. http://www.jisc.ac.uk/media/documents/publications/programme/2010/ubirdfinalreport.p df) http://www.jisc.ac.uk/media/documents/publications/programme/2010/ubirdfinalreport.p df

13. October 21st, 2010 www.gbv.de Search Engine Index

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16. October 21st, 2010 www.gbv.de Suchkiste goals: Provide a single access point to DFG Nationallizenzen collection (~150 million digital ressources) Make better use of data using a search engine using built on information retrieval technology → Solr User experience based on web standards Open up library data silos to the web

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19. October 21st, 2010 www.gbv.de Challenges: data collection Where to get it? Legal questions? Coverage? How to get/transfer it? OAI-PMH? RSS? ftp? „Dumps“? „XML“? Tapes? Updates? Processing? Normalisation? Deduplication/Clustering? Variety of data (formats), structure (implicit and explicit), documentation?, messy data, errors in data (encoding, structure...) Sotrage and management of large data sets … → lots of manual(!) work

20. October 21st, 2010 www.gbv.de Challenges: Search Engines How to index structured library data? Relevance ranking? Factors? (TF/IDF?, popularity?, availability?,„freshness“?, „context“?, …) Use structure and content of (library) metadata? Mixing „metadata“ and „fulltext“? Mixing (data on) different media? Minor issues: search suggestions, stemming

21. October 21st, 2010 www.gbv.de Challenges: User Interfaces overall user experience Single search box ↔ advanced search making use of data structure Browsing, Visualisation, Refining, Facets? Making it part of the web Search suggestions, spelling corrections,...

22. October 21st, 2010 www.gbv.de Next: One central index of all GBV data (~120 million records) Beyond opening HTML record views to the web, opening data for use on the web: linked data