Seminars

The main activity of the research network will be a weekly interactive online seminar. For 2016-2017, they will take place on Tuesdays and Wednesdays at 1:00pm Eastern time. Members are emailed links for joining these seminars. The seminars are delivered using Cisco's WebEx platform, which allows participants to interact using audio and video, if they wish, and the presenter to share their desktop.

If you missed our ealier talks you can stream and/or download them by clicking on the links below.

Some of the slides are also available here.

Fall 2017

• Wed September 20, Lori Ziegelmeier
• Tues October 24, Pawel Dlotko
• Wed November 1, Chad Topaz, Topological data analysis of collective motion
• Tue November 14, Rachel Levanger
• Tue November 28 **Different Time TBA**, Vanessa Robins
• Wed December 13, Raúl Rabadán

Spring 2017

• Tue January 31, Amit Patel, Generalized Persistence Diagrams
• Tue February 7, Michael Catanzaro, Stochastic Dynamics on CW Complexes
• Tue February 28, Greg Malen, k-Collapsibility of Random Clique Complexes
• Wed April 5, Magnus Botnan, Multidimensional Persistence
• Wed April 12, Greg Henselman, Matroids & Canonical Forms: Theory and Applications
• Tues April 25, José Samper, Higher Chordality

Fall 2016

• Tue September 6, Gunnar Carlsson, Local to global principles in persistent homology
• Wed September 21, Bruno Benedetti, Optimal discrete Morse vectors are not unique
• Wed October 5, Sara Kalisnik, Tropical Coordinates on the Space of Persistence Barcodes
• Tue October 18, Washington Mio, Stable Homology of Metric-Measure Spaces
• Tue November 1, Florian Frick, Topology and combinatorics of fair division
• Wed December 14, Anthea Monod, Topological Summaries of Tumor Images Improve Prediction of Disease Free Survival in Glioblastoma Multiforme

Spring 2016

• Tue January 12, Omer Bobrowski, Maximally persistent cycles in random geometric complexes
• Tue January 26, Matthew Kahle, Topology of configuration spaces of hard spheres
• Tue February 2, Sanjeevi Krishnan, Homological Programming
• Tue February 9, Harish Chintakunta, Topological Data Analysis and Signal Processing
• Wed February 24, Kathryn Hess, Topological analysis of digital reconstructions of neural microcircuits
• Tue March 15, Benjamin Schweinhart, Statistical Topology of Random Cell Complexes, and Applications  
• Tue April 12, Chad Giusti, Topology and neural computation
• Wed April 20, Bala Krishnamoorthy, Linear Programming in Geometric Measure Theory

Fall 2015

• Tue October 6, Michael Lesnick, Algebraic Stability of Zigzag Persistence Modules
• Tue October 20, Matthew Wright, Visualizing 2-Dimensional Persistent Homology 
• Tue October 27, Justin Curry, Stratified covering maps and interleavings
• Tue November 10, Hammurabi Mendes, Byzantine Computability and Combinatorial Topology
• Tue December 2, Facundo Memoli, Hierarchical Clustering on Asymmetric Networks

Spring 2015

• Tue January 13, Larry Wasserman, Robust Topological Inference
• Wed January 21, Tamal Dey, Multiscale Mapper: A Framework for Topological Summarization
• Tue February 10, Javier Arsuaga, Applications of computational topology to the analysis of breast cancer copy number data
• Web February 25, Elizabeth Munch, The interleaving distance for Reeb graphs
• Tue March 3, Henry Adams, The Vietoris-Rips complex of the circle
• Tue March 17, Bei Wang, Geometric Inference on Kernel Density Estimates
• Tue March 24, Don Sheehy, Sensors, Sampling, and Scale Selection: A Homological Approach
• Wed April 1, Michael Robinson, Sheaf-based modeling of wireless communications
• Tue April 7, Vidit Nanda, Morse theory for Local Coefficients
• Wed April 15, Katharine Turner, PCA of persistent homology rank functions with case studies in point processes, colloids and sphere packings
• Wed April 22, Jose Perea, Projective coordinates for the analysis of data
• Wed April 29, Anthony Bak, Spaces of Shapes: Persistent Homology for Drug Discovery

Fall 2014

(The recorded video quality of the board talks is poor, but the recorded video quality of the powerpoint talks is very good. We are learning as we go along....)

• Tue Sept 23, Robert Ghrist, Poincare Duality in Network Flow Optimization
• Wed Oct 1, Shmuel Weinberger, On Topological Inference
• Tue Oct 7, John Harer, Topological Data Analysis and Machine Learning
• Wed Oct 15, Gunnar Carlsson, On the algebraic geometry of spaces of persistence modules
• Tue Oct 21, Sayan Mukherjee, Stochastic topology and statistical inference
• Tue Oct 28, Peter Bubenik, Statistical topological data analysis
• Wed Nov 5, Konstantin Mischaikow, Nonlinear Dynamics, High Dimensional Data, and Persistent Homology
• Wed Nov 19, Vin de Silva, Functors and cosheaves for topological persistence
• Wed Dec 10, Yusu Wang, Comparing Graphs via Persistence Distortion

Here are some basic instructions for connecting to our seminar.

1. You should receive an email titled “Invitation to WebEx meeting…”. In this email click on the link ‘Join’.

2. This directs you to the WebEx page for the seminar. Under “Don’t have an account?”, fill in “Your Display Name” and your “Email Address”, then click on “Join as Guest”.

3. Now the “Cisco WebEx Meetings” window should open. A small ‘Audi Conference’ window may open on its own. If not click on the large “Connect to Audio” button on the left or the small ‘Audio’ button on the right. Now click on “Call Using Computer” to use your computer’s speakers and microphone. (If your computer does not have audio capabilities, you can call in using a phone.)

4. If you see video on the top right, you can double click on it to enter ‘Full-Screen View’.

5. On either the bottom right of the ‘full-screen view’ or to the right of your name in the right panel, you can enable/disable your video and enable/disable your audio. To reduce background noise, please stay muted unless you are speaking. Also, to improve the quality of the talk, disable your video during the talk unless you are asking a question.

Troubleshooting

• Some ad-blockers may prevent the ‘Audio Conference’ pop-up from opening.

• WebEx should/may also work with tablets and smart phones and linux.

• If you fail with one browser/device, try another.  

• If the WebEx program gets stuck on launching the meeting, shut down and restart your device.