# John Harer

### Professor of Mathematics

Professor Harer's primary research is in the use of geometric, combinatorial and computational techniques to study a variety of problems in data analysis, shape recognition, image segmentation, tracking, brain imaging, biological networks and gene expression.

###### Appointments and Affiliations

- Professor of Mathematics
- Professor in the Department of Electrical and Computer Engineering

###### Contact Information:

**Office Phone:**(919) 660-2845**Web Page:**

###### Education:

- Ph.D. University of California at Berkeley, 1979
- B.A. Harvard University, 1974

###### Curriculum Vitae

###### Research Interests:

Professor Harer's primary research is in the use of geometric, combinatorial and computational techniques to study a variety of problems in data analysis, shape recognition, image segmentation, tracking, brain imaging, biological networks and gene expression.

###### Specialties:

Topology

Geometry

Mathematical Biology

Applied Math

###### Awards, Honors, and Distinctions:

###### Courses Taught:

- BIOLOGY 218: Biological Clocks: How Organisms Keep Time
- MATH 190: Special Topics in Mathematics
- MATH 221: Linear Algebra and Applications
- MATH 573S: Modeling of Biological Systems
- MATH 611: Algebraic Topology I
- MATH 790-90: Minicourse in Advanced Topics
- MATH 799: Special Readings

###### Representative Publications: (More Publications)

- Perea, JA; Deckard, A; Haase, SB; Harer, J,
*SW1PerS: Sliding windows and 1-persistence scoring; discovering periodicity in gene expression time series data.*, BMC Bioinformatics, vol 16 (2015) [10.1186/s12859-015-0645-6] [abs]. - Munch, E; Turner, K; Bendich, P; Mukherjee, S; Mattingly, J; Harer, J,
*Probabilistic Fréchet means for time varying persistence diagrams*, Electronic Journal of Statistics, vol 9 no. 1 (2015), pp. 1173-1204 [10.1214/15-EJS1030] [abs]. - Farr, RS; Harer, JL; Fink, TM,
*Easily repairable networks: reconnecting nodes after damage.*, Physical Review Letters, vol 113 no. 13 (2014) [10.1103/physrevlett.113.138701] [abs]. - Turner, K; Mileyko, Y; Mukherjee, S; Harer, J,
*Fréchet Means for Distributions of Persistence Diagrams*, Discrete & Computational Geometry, vol 52 no. 1 (2014), pp. 44-70 [10.1007/s00454-014-9604-7] [abs]. - Perea, JA; Harer, J,
*Sliding Windows and Persistence: An Application of Topological Methods to Signal Analysis*, Foundations of Computational Mathematics, vol 15 no. 3 (2014), pp. 799-838 [10.1007/s10208-014-9206-z] [abs].