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UID:20261016T141044EDT-8783v7ZH9c@132.216.98.100
DTSTAMP:20261016T181044Z
DESCRIPTION:Join us for a McGill School of Information Studies (SIS) Semina
 r Series talk on semantic visualization models for data mining with guest 
 speaker Dr. Hady Lauw\, Assistant Professor of Information Systems at Sing
 apore Management University.\n\nAbstract\n\nVisualization of high-dimensio
 nal data such as text documents is widely applicable. Classical approaches
  to visualization directly reduce a document's high-dimensional representa
 tion into visualizable two or three dimensions\, using techniques such as 
 multidimensional scaling. While such approaches may preserve the relations
 hip among the data points\, they are somewhat limited in terms of explanat
 ory power. The current way to model semantics in text documents is through
  topic modelling\, a class of probabilistic generative models for word occ
 urrences in documents. In this talk\, we will explore semantic visualizati
 on models\, which are recent approaches for visualization that consider an
  intermediate representation in topic space between the input word space a
 nd the output visualization space. This has the useful effect of producing
  both a topic model and a visualization model simultaneously. The reduced 
 dimensionalities are shown to still be effective in some data mining tasks
 \, such as nearest neighbor classification.\n\nBio\n\nHady W. Lauw is an A
 ssistant Professor of Information Systems at Singapore Management Universi
 ty. Previously\, he was a post-doc at Microsoft Research Silicon Valley\, 
 and then a scientist at A*STAR's Institute for Infocomm Research. He obtai
 ned his bachelor's and PhD degrees from Nanyang Technological University. 
  His research interest is in data mining\, focusing on Web and social medi
 a data. He is an active member of the community and he has served several 
 times as a PC member and reviewer for all major data mining and web search
  conferences and journals. More details can be found in his web site: http
 ://www.hadylauw.com.\n\n \n\nThis talk is free and open to all. Please arr
 ive early and ring for entry to the building. \n\n \n\n \n\n \n
DTSTART:20140801T180000Z
DTEND:20140801T190000Z
LOCATION:CA\, School of Information Studies\, 3661 Peel\, Rm. 106\, Montrea
 l
SUMMARY:Information Studies Seminar Series: 'Semantic Visualization in Data
  Mining.' Guest speaker Dr. Hady Lauw 
URL:https://www.mcgill.ca/sis/channels/event/information-studies-seminar-se
 ries-semantic-visualization-data-mining
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