BEGIN:VCALENDAR VERSION:2.0 PRODID:-//132.216.98.100//NONSGML kigkonsult.se iCalcreator 2.20.4// BEGIN:VEVENT UID:20260805T103224EDT-8285G0EUut@132.216.98.100 DTSTAMP:20260805T143224Z DESCRIPTION:Many large digital collections are currently organized by\nsubj ect\; however\, these useful information organization structures\nare larg e and complex\, making them difficult to browse. Current\nonline tools and visualization prototypes show small localized\nsubsets and do not provide the ability to explore the predominant\npatterns of the overall subject s tructure. This research addresses\nthis issue by simplifying the subject s tructure using two\ntechniques based on the highly uneven distribution of real-world\ncollections: level compression and child pruning. The approach is\ndemonstrated using a sample of 233K records organized using Medical\n Subject Headings (MeSH). Promising results show that the subject\nhierarch y can be reduced down to 30% of its initial size\, while\nmaintaining acce ss to over 90% of the collection. The visual impact\nis demonstrated using a traditional outline view allowing searchers\nto dynamically change the amount of complexity that they feel\nnecessary for the tasks at hand.\n\nC harles-Antoine Julien is an industrial engineer with professional\nexperie nce as a business information systems programmer\, analyst\nand trainer. A fter completing an engineering Masters in educative\ntechnologies\, he com pleted a PhD in information studies\nspecializing in information visualiza tion of information\norganization structures. Dr. Julien was a post-doctor al fellow at\nthe School of Information Studies of the University of Wisco nsin in\nMilwaukee where he further developed his research on the\nsimplif ication of information organization structures. He has\npublished on infor mation visualization and simplification of\ninformation organization struc tures\, next-generation library\ncatalogues\, and human-computer interacti on. Since January 2012\, he\nis an assistant professor at the 91Ë¿¹ÏÊÓÆµ Unive rsity School of\nInformation Studies.\n DTSTART:20120210T173000Z DTEND:20120210T190000Z LOCATION:CA\, 3661 Peel\, Rm 106\, 3661 Peel\, Rm 106\, SIS Building SUMMARY:SIS Seminar Series: Towards Automatic Simplification of Information Organization Structures URL:/channels/event/sis-seminar-series-towards-automat ic-simplification-information-organization-structures-189754 END:VEVENT END:VCALENDAR