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Tomislav Ivanjko *

Teaching Universal Decimal Classification (UDC) to undergraduate students: a folksonomy driven approach. Tomislav Ivanjko * University of Zagreb Faculty of Humanities and Social Sciences Department of Information and Communication Sciences. Introduction.

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Tomislav Ivanjko *

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  1. Teaching Universal Decimal Classification (UDC) to undergraduate students: a folksonomy driven approach TomislavIvanjko* University of ZagrebFaculty of Humanities and Social SciencesDepartment of Information and Communication Sciences

  2. Introduction • Using controlled vocabulary is the ever more important part of everyday tasks performed by information specialists in the LIS field • Always present when the retrieval of information is needed

  3. Folksonomies • A new wave of user participation in creating and describing online resources

  4. Case study • Exploring ways to integrate social tagging into teaching students controlled vocabulary • A small case study was implemented in the course “Classification Systems” • undergraduate level • introductory course to the field of controlled vocabularies and classification systems (UDC)

  5. Methodology and limitations • 12 lectures • 1st exercise • 3 journal articles from the field of Social Sciences • UDC numbers, abstract and author keywords assigned • Students were given an assignment to write a short description about the topic of the articles and tag them • 12-week class covering the topics of controlled vocabularies, classification systems and the practical use of the UDC • Last exercise • Students tag the articles again, but this time using the knowledge they acquired during the semester and using the UDC notions as keywords

  6. Initial hypotheses (1) UDC driven (post-course) tags will show a greater consistency than free keyword (pre-course) tags (2) UDC driven (post-course) tags will have higher agreement with the terms added by the subject specialist than free keyword (pre-course) tags • using common vocabulary (UDC notions) and familiarization with the proper use of controlled vocabulary during the course will have significant impact on the results and subject approach • Theseresultswill provide aninsight for studentsinrelation to the use ofcontrolledvocabulary

  7. Results and discussion • Free tags description generated 66 different tags (45%) • UDC notions had only 43 different tags (28%) • Top 10 tags • 46% (68) of total tags when students were using free tags • risen to 65% (101) when they were using the UDC notions

  8. Tag frequency distributions compared • UDC driven tags show a greater consistency • fewer tags with higher frequencies

  9. Term comparison between sets • From the UDC number added to the article UDC associated notions were extracted • Termsfrom the title were also extracted to be used as a comparison set • The idea was to compare added free keywords (pre-course) and UDC notions (post-course) to see the overlap between those sets • As the user set, only tags with a frequency of 3 and higher were used to ensure basic tag validation (added at least by 3 students)

  10. Free terms • the highest overlap was between added terms and title keywords (50%) (1) students presumed that the most important terms are already present in the title of the article so they included them in their description (can be viewed as a copy-paste method); (2) some overlap can be expected between fee keywords and author keywords, since both are uncontrolled (3) there is a low agreement on terms between student free keywords and those assigned by a subject specialist. • UDC driven terms • highest agreement with the terms added by the subject specialist

  11. Conclusion • Basic concept differences between uncontrolled and controlled vocabulary explored • Implementing basic principles of subject analysis and using pre-coordinated terms can yield very different results from using uncontrolled terms • Students are presented with real life data that illustrate key conceptswhichcan provide usefulinsightintothediscussedtopics

  12. Teaching Universal Decimal Classification (UDC) to undergraduate students: a folksonomy driven approach Thankyou for yourattention!

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