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2 mai 2007
Le sujet de ce premier bloc de présentations est « Tags, Tagging & Notetaking ».
tagging: ajout d'étiquettes, de méta-données pour classifier/repérer un élément d'information
Why We Tag: Motivations for Annotation in Mobile and Online Media (Yahoo!, Université Stanford, Université de Californie). Desktop tagging software hasn't taken off but people do it on Flickr, Why? The motivations for tagging are related to motivations for taking pictures. They studied Flickr users. We photograph for social/individual motivations, affective reasons, artistic reasons. Motivations for tagging: organisation for self, familiy and strangers (retrieval, search contribution, attention, ad hoc photo pooling), communication with family & friends (context for self, memory, content description, in-the-moment "social signaling"). Taggin is often social and the motivations are multifaceted. Tags should be pervasive and multi-functional. Tags suggesting is good but irrelevant suggestions may confuse/alarm, laziness may compromise clarity. Note : Intéressant et applicable je crois, dans d'autres domaines comme la gestion humaine et électronique de documents (GHED).
Selection-Based Note-Taking Applications (Université Carnegie Mellon). When we read digital documents, we may want to take notes. Why taking notes? It promotes learning. What is the best approach to take notes to influence learning and remembering? Typing produces wordier notes while learning is the same. Does copy/paste wordiness reflect reduced attention to detail? No. Is it important that people take notes in their own words? No. Copy/paste is faster than typing notes and is as good for learning. Although, people should limit the number of words pasted because it affects learning in a bad way. Intéressant !
Getting Our heads in the Clouds: Toward Evaluation Studies of Tagclouds (Université du Maryland, IBM). Experiment 1 investigates the effects of word location and font size on memory. Recall is related to font size. Proximity to the largest words doesn't affect recall. Experiment 2 investigates the effects of font size and layout on impression formation and memory. Recall is related to font size. Layout doesn't matters (sequential - alphabetical, sequential - frequency, list, spatial, etc.).
Écrit par Daniel le mai 2, 2007 11:30 AM