[Ltg] HAIL Seminar *Reminder* (13th March): Dr Masahiro Takatsuka, University of Sydney

[Andrew Lampert]

                      H.A.I.L. Seminar series
                          CSIRO ICT Centre
                   http://www.ict.csiro.au/HAIL/


Title:          Self-Organizing Map for Visual Analytics

Speaker:        Dr Masahiro Takatsuka
                Director
                Visualization and High-Performance Computing Laboratory
                University of Sydney

Date:           Tuesday 13th March 2007 at 11am

Location:       CSIRO ICT Centre,
                Building E6B, Macquarie University.

                See <http://www.ict.csiro.au/HAIL/location.htm> for details.

Video:          We usually stream live video of seminars.

                At the seminar time (see above), point your browser at:
                  <http://webcast.nsw.csiro.au/httpfs/ICT/HailSeminar/live.asx>


Abstract

A Self-Organizing Map is a type of Artificial Neural Networks and has been primarily used for 1) Associative Memory and 2) Data Visualization. In either cases, the main function of the SOM is to model multivariate data. This modeling corresponds to learning the statistical structure of the multivariate data in a much simpler form (typically in a 2D space). During this process, the SOM will try to keep the topological structure of the original data as much as possible. Hence, it achieves its non-linear topological mapping from the high-dimensional space to the much lower (typically 2D) space. With this topological mapping capability, it allows us to visualize complex high-dimensional data structures.

Although the original form of the SOM does provide a useful visualization mechanism to a certain extent, it falls short of requirements in Visual Analytics. Visual Analytics is a emerging discipline, and it aims to utilize Visualization and User Interfaces in order to improve an Analytical Reasoning process. In this talk, SOM's shortcomings will be explained and some possible solutions and future challenges will be presented.


Short resume

Masahiro Takatsuka is Senior Lecturer at the School of Information Technologies, the University of Sydney, where he heads the ViSLAB (Visualization Research Group). His current research interests include the use of manifold surfaces to multidimensional scaling and Information Visualization, Advanced Collaboration Technologies, in particular, the use of Service Oriented Remote Collaboration, and Network Centric Computer Graphics.

Takatsuka obtained his Ph.D. in Electrical and Computer Engineering from Monash University. He is a Member of the IEEE and ACM.

----------------------------------------
The HAIL Seminars' URL:
http://www.ict.csiro.au/HAIL/

Contacts:       Andrew Lampert
Address:        CSIRO HAIL Seminars,
                c/o Andrew Lampert,
                Locked Bag 17,
                North Ryde NSW 1670

Phone:  (02) 9325 3100
Email:  Andrew.Lampert at csiro.au


*Administration*
-----------------------------------------------------------------
* To leave the list, send the message "unsubscribe HailSeminars" to
the list server address <majordomo at nsw.cmis.csiro.au>.
The subject line of your e-mail message will be ignored.
==================================================================