Mikael Vejdemo-Johansson

Mikael Vejdemo-Johansson (pronounced like Michael Vey-demo Johansson).

As of the Fall semester, 2016, I am Assistant Professor of Data Science at the mathematics department of CUNY College of Staten Island.

As of the Spring semester, 2017, I am Doctoral Faculty in the PhD program in Computer Science at the CUNY Graduate Center. Since 2019 I have been Deputy Executive Officer for the joint PhD in Computer Science and MSc in Data Science programs.

Contact

If you are a student, please use Mikael.VejdemoJohansson@csi.cuny.edu. All other inquiries, please use mvj@math.csi.cuny.edu. My office on CUNY College of Staten Island, Willowbrook campus, is 1S-208. At the Graduate Center, my office is 4319.02. I prefer contact by email over contact by telephone.

Research

My main area of interest is in applied algebraic topology and topological data analysis: how to compute the shape of a data set, and how to use that shape to understand the underlying data.

A large collection of lecture slides, written papers and other information can be found on my CV website.

I have helped create several software packages for persistent homology, most recently JavaPlex.

I am chair of the coordinating committee of the ATMCS conference series.

Among my many side projects is an enumeration of possible tieknots. To go with this paper, I wrote a webpage with a random tieknot generator.

Teaching

Students

Here are incomplete lists of students I have worked with either to advise thesis projects or to supervise independent studies.

Thesis Students

Denis Khryashchev (GC), PhD, Partially monotonic correlation coefficients
Hannah Aizenman☥ (GC), PhD, Topological Data Visualization
F19 Shweta Garg (GC), MSc, Spatial Data Analysis
Leo Carlsson☥ (KTH), PhD 2021, Applied Machine Learning in Steel Process Engineering
João Frederico Carvalho☥ (KTH), PhD 2020, Topological Methods For Motion Prediction And Caging
Martina Scolamiero☥ (KTH), PhD 2015, Invariants for Multidimensional Persistence
Timothy Sweeney, BSc 2017, A Study of Taxi-Cab Driver’s Times between Trips