,I am broadly interested in geometric and topological data analysis, an area of mathematics at the intersection of many mathematical fields: geometry, topology, linear algebra, optimization, computing, and machine learning. I am particularly interested in developing and applying tools from computational geometry and topology to a wide variety of data sets from hyperspectral imagery to biological aggregations.

I am a founder of the Women in Computational Topology (WinCompTop) listserv (join by sending a blank email to:<WinCompTop+subscribe@googlegroups.com>) and was the PI of the NSF grant to fund the inaugural WinCompTop Workshop at the IMA in August of 2016. For a description of the program, see this write-up in the AWM newsletter.

I was the PI of the NSF-CBMS grant to fund the regional research conference Topological Data Analysis: Theory and Applications held at Macalester College in June of 2017.

I am also the Co-PI of the collaborative research proposal CDS&E-MSS: Exact Homological Algebra for Computational Topology (ExHACT) project with collaborators Chad Giusti of the University of Delaware and Gregory Henselman-Petrusek of Princeton University.

While a graduate student at Colorado State University, I was a member of the Pattern Analysis Lab (PAL), run by my advisors Drs. Michael Kirby and Chris Peterson, which involves undergraduates, graduate students, post-docs, and professors interacting in an informal setting. This write-up describes a research project that arose from PAL.

I am a founder of the Women in Computational Topology (WinCompTop) listserv (join by sending a blank email to:<WinCompTop+subscribe@googlegroups.com>) and was the PI of the NSF grant to fund the inaugural WinCompTop Workshop at the IMA in August of 2016. For a description of the program, see this write-up in the AWM newsletter.

I was the PI of the NSF-CBMS grant to fund the regional research conference Topological Data Analysis: Theory and Applications held at Macalester College in June of 2017.

I am also the Co-PI of the collaborative research proposal CDS&E-MSS: Exact Homological Algebra for Computational Topology (ExHACT) project with collaborators Chad Giusti of the University of Delaware and Gregory Henselman-Petrusek of Princeton University.

While a graduate student at Colorado State University, I was a member of the Pattern Analysis Lab (PAL), run by my advisors Drs. Michael Kirby and Chris Peterson, which involves undergraduates, graduate students, post-docs, and professors interacting in an informal setting. This write-up describes a research project that arose from PAL.

Manuscripts

Note: An asterisk denotes an undergraduate student co-author.

18. Local Versus Global Distances for Zigzag Persistence Modules (Preprint)
17. On Homotopy Types of Vietoris-Rips Complexes of Metric Gluings (Preprint) 16. Topological Data Analysis of Collective Motion 15. The Relationship Between the Intrinsic Cech and Persistence Distortion Distances for Metric Graphs (Preprint) 14. Analyzing Collective Motion with Machine Learning and Topology (Preprint) 13. Assessing Biological Model Validity using Topological Data Analysis (Preprint) 12. Vietoris-Rips and Čech Complexes of Metric Gluings 11. Mind the Gap: A Study in Global Development through Persistent Homology (Preprint) 10. A Complete Characterization of the 1-Dimensional Intrinsic Cech Persistence Diagrams for Metric Graphs (Preprint) 9. Sparse Locally Linear Embedding 8. Stratifying High Dimensional Data Based on Proximity to the Convex Hull Boundary 7. Persistence Images: A Stable Vector Representation of Persistent Homology 6. Persistent Homology on Grassmann Manifolds for Analysis of Hyperspectral Movies (Preprint) 5. Topological Data Analysis of Biological Aggregation Models 4. An Application of Persistent Homology on Grassmann Manifolds for the Detection of Signals in Hyperspectral Imagery (Preprint) 3. Reflections on Math Students' Circles: Two Personal Stories from Colorado 2. Flipped Calculus: A Study of Student Performance and Perceptions 1. On the Strengthening of Topological Signals in Persistent Homology through Vector Bundle Based Maps |
E. Gasparovic, M. Gommel, E. Purvine, R. Sazdanovic, B. Wang, Y. Wang, and L. Ziegelmeier
M. Adamaszek, H. Adams, E. Gasparovic, M. Gommel, E. Purvine, R. Sazdanovic, B. Wang, Y. Wang, and L. Ziegelmeier H. Adams, M-V Ciocanel, C. Topaz, and L. Ziegelmeier E. Gasparovic, M. Gommel, E. Purvine, R. Sazdanovic, B. Wang, Y. Wang, and L. Ziegelmeier D. Bhaskar, A. Manhart, J. Milzman, J. Nardini, K. Storey, C. Topaz, and L. Ziegelmeier M. Ulmer*, L. Ziegelmeier, and C. Topaz M. Adamaszek, H. Adams, E. Gasparovic, M. Gommel, E. Purvine, R. Sazdanovic, B. Wang, Y. Wang, and L. Ziegelmeier A. Banman* and L. Ziegelmeier E. Gasparovic, M. Gommel, E. Purvine, R. Sazdanovic, B. Wang, Y. Wang, and L. Ziegelmeier Ziegelmeier, M. Kirby, and C. Peterson L. Ziegelmeier, M. Kirby, and C. Peterson H. Adams, S. Chepushtanova, T. Emerson, E. Hanson, M. Kirby, F. Motta, R. Neville, C. Peterson, P. Shipman, and L. Ziegelmeier S. Chepushtanova, M. Kirby, C. Peterson, and L. Ziegelmeier D. Topaz, L. Ziegelmeier, and T. Halverson S. Chepushtanova, M. Kirby, C. Peterson, and L. Ziegelmeier D. White and L. Ziegelmeier L. Ziegelmeier and C. Topaz E. Hanson, F. Motta, C. Peterson, and L. Ziegelmeier |
Under Review
2020 2020 2020 2019 2019 2018 2018 2018 2017 2017 2017 2016 2015 2015 2015 2015 2012 |

## Books Edited

## PhD Dissertation

Exploiting Geometry, Topology, and Optimization for Knowledge Discovery in Big Data

My doctoral education was in the Department of Mathematics at Colorado State University. My dissertation was in the area of geometric and topological data analysis with an emphasis on manifold learning, optimization, image analysis, and classification. This work was jointly supervised by my advisors Dr. Michael Kirby and Dr. Chris Peterson. At CSU, I was a member of the Pattern Analysis Laboratory (PAL), a collaborative research group involving faculty, post-docs, graduate, and undergraduate students.

My doctoral education was in the Department of Mathematics at Colorado State University. My dissertation was in the area of geometric and topological data analysis with an emphasis on manifold learning, optimization, image analysis, and classification. This work was jointly supervised by my advisors Dr. Michael Kirby and Dr. Chris Peterson. At CSU, I was a member of the Pattern Analysis Laboratory (PAL), a collaborative research group involving faculty, post-docs, graduate, and undergraduate students.