[Compstats] AI/Compstats seminar Friday @ 11:30 (DC2306C): Rita Ackerman

Rita Ackerman ritasemail at gmail.com
Mon May 3 22:18:27 EDT 2010

Please note that I forgot to mention that the work that I will be
presenting is joint work with Shai Ben-David and David Loker. My
apologies for the error.


On Mon, May 3, 2010 at 6:36 PM, Pascal Poupart <ppoupart at cs.uwaterloo.ca> wrote:
> Hi everyone,
> In addition to David McAllester's guest lecture in the Google-UW seminar
> series on Wednesday, Rita Ackerman will give a Comptstats/AI seminar on
> Friday.  Title and abstract follow below.
> cheers, Pascal
> ===========
> Title:  Characterization of Linkage-Based Clustering
> Speaker: Rita Ackerman
> Time: May 7, 2010 at 11:30 am
> Location: AI Lab (DC 2306C)
> Abstract:
> Clustering is a central unsupervised learning task with a wide varietyof
> applications. Not surprisingly,
> there exist many clustering algorithms. However, unlike classification
> tasks, in clustering,  different algorithms may yield dramatically
> different outputs for the same input sets. A major challenge is to
> develop tools that may help select the more suitable algorithm for a
> given clustering task. We propose to address this problem by distilling
> abstract properties of clustering functions that distinguish between the
> types of input-output behaviors of different clustering paradigms. In
> this talk we make a step in this direction by providing such property
> based characterization for the class of linkage based clustering
> algorithms.
> Linkage-based clustering is one the most commonly used and widely
> studied clustering paradigms. It includes popular algorithms like Single
> Linkage and enjoys simple efficient algorithms. On top of their
> potential merits for helping users decide when are such algorithms
> appropriate
> for their data, our results can be viewed as a convincing proof of
> concept for the research on taxonomizing clustering paradigms by their
> abstract properties.
> --
> ------------------------
> Pascal Poupart
> Associate Professor
> David R. Cheriton School of Computer Science
> University of Waterloo
> 200 University Avenue West
> Waterloo, Ontario
> Canada N2L 3G1
> ------------------------
> Web: http://www.cs.uwaterloo.ca/~ppoupart
> Email: ppoupart at cs.uwaterloo.ca
> Telephone: 1-519-888-4567x36239
> Fax: 1-519-885-1208
> ------------------------
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