Effektiv und nutzerfreundlich. Einsatz von semantischen Technologien und Usability-Methoden zur Verbesserung der medizinischen Literatursuche
| Main Author: | Dzeyk, Waldemar |
|---|---|
| Format: | Book NonPeerReviewed application/pdf |
| Bahasa: | de |
| Terbitan: |
Deutsche Zentralbibliothek für Medizin (ZB MED)
, 2010
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| Subjects: | |
| Online Access: |
http://eprints.rclis.org/14364/1/Effektv_und_nutzerfreundlich.pdf http://eprints.rclis.org/14364/ |
Daftar Isi:
- OBJECTIVE: Modern language technology has many advantages in medical information retrieval. In combination with up-to-date search software the linguistic approach leads to more and better results in medical literature search (i.e. relevant hits) for phenomena such as synonyms, translations and linguistic variants (inflection, derivation, word-composition, etc.). Additionally, a normalization of laymen and expert queries can be achieved. The book presents the results of the MorphoSaurus project conducted by the German National Library of Medicine. It describes the implementation and evaluation of a computational linguistic approach to improve the quality of the information retrieval of the MEDPILOT medical search engine. Furthermore, the usability of the user interface was evaluated and improved. METHODS: Different collections of test queries were constructed for examining the performance of information retrieval characteristics based on a content analysis of the MEDPILOT log file. In addition, a usability test with 24 physicians was conducted. RESULTS: The findings show that the new search architecture performs much better than the old MEDPILOT system. Besides these results a benchmarking with competing search engines such as PubMed, GoPubMed, Scirus, Google and Google Scholar demonstrated the superior search characteristics of the new search system. Usability tests have shown that the implemented help functions such as "faceted search" or the “auto suggest function” could improve medical literature search. Physicians stated that they found the new interface more satisfying than the old one and that they felt well supported by most of the implemented help functions. Results and consequences for the development of user centered design and usability improvements of the search engine are discussed. CONCLUSION: The combination of up up-to-date search software, semantic technologies and the application of usability principles has shown a great potential for effective information retrieval in medical literature search. The positive effects of the linguistic approach can be adapted to other content domains for improving the processing of a variety of heterogeneous databases.