Abstract
Earlier studies have found that topic queries would lose, on average, about a quarter of hits if bibliographic databases did not incorporate the subject indexing based on controlled vocabularies and typically carried out by information professionals. Topic queries were run on three more databases, namely ERIC, PsycINFO and Socindex, to investigate whether this loss level might be generalizable. Results indicate that the amount of “retrieval power” lost varies across databases, probably due to a range of factors. In two of the three databases studied here, over a third of hits were lost on average, whereas in the other case about a sixth were lost. These results point, if anything, to an even stronger case for retaining the assigned indexing included in these databases, as well as to the need for further research into the value of professional indexing across contemporary search environments.
Original language | English |
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Title of host publication | Challenges and Opportunities for Knowledge Organization in the Digital Age |
Subtitle of host publication | Proceedings of the Fifteenth International ISKO Conference 9-11 July 2018 Porto, Portugal |
Editors | Fernanda Ribeiro, Maria Elisa Cerveira |
Place of Publication | Germany |
Publisher | Ergon |
Pages | 426-431 |
Number of pages | 6 |
ISBN (Electronic) | 9783956504211 |
ISBN (Print) | 9783956504204 |
Publication status | Published - 2018 |
Event | 15th International ISKO Conference - Faculdade de Letras da Universidade do Porto, Porto, Portugal Duration: 09 Jul 2018 → 11 Jul 2018 https://ocs.letras.up.pt/index.php/isko2018/isko2018 (Conference website) https://ocs.letras.up.pt/public/conferences/13/schedConfs/22/program-en_US.pdf (Conference program) |
Publication series
Name | Advances in Knowledge Organization |
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Number | 16 |
Conference
Conference | 15th International ISKO Conference |
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Abbreviated title | Challenges and opportunities for Knowledge Organization in the digital age |
Country/Territory | Portugal |
City | Porto |
Period | 09/07/18 → 11/07/18 |
Internet address |
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