Talks

Invited talks, colloquia, seminars, and conference presentations, in reverse chronological order.

May 2026 Matrix Scaling, Entropic Optimal Transport, and Sinkhorn Algorithm: Theory, Applications, and New Perspectives — Chungbuk University Mathematics Colloquium
Apr 2026 Matrix Scaling, Entropic Optimal Transport, and Sinkhorn Algorithm: Theory, Applications, and New Perspectives — UW–Madison Mathematics AI Seminar [Slides]
Apr 2025 Large random matrices with given margins — UNC IDEAS Seminar [Slides]
Feb 2025 Cyclic Block Optimization: How they work, why they work, and where they work — Michigan Applied and Interdisciplinary Math Seminar [Slides]
Feb 2025 Large random matrices with given margins — UW–Madison Probability Seminar
Jan 2025 Large random matrices with given margins — Yonsei University Discrete Analysis Seminar
Dec 2024 Large random matrices with given margins, Schrödinger bridge, and Sinkhorn algorithm — KIAS AI Seminar
Nov 2024 Large random matrices with given margins, Schrödinger bridge, and Sinkhorn algorithm — Rutgers Discrete Math Seminar
Oct 2024 Exponentially convergent algorithms for supervised matrix factorization — SIAM MDS24 [Slides]
Oct 2024 Large random matrices with given margins, Schrödinger bridge, and Sinkhorn algorithm — KAIST Colloquium, SAARC
Jun 2024 Concentration and limit of large random matrices with given margins — Summer School on Optimal Transport, Stochastic Analysis and Applications to Machine Learning, KAIST
May 2024 How to improve first-order optimization methods by using trust-region, block structure, geometry, and randomization — Deep Learning Seminar, KRAFTON AI [Slides]
Oct 2023 Particle density in diffusion-limited annihilating systems — Stochastic Analysis on Large Scale Interacting Systems, RIMS, Kyoto [Slides]
Oct 2023 Learning low-rank mesoscale structures in networks — Ghent Methusalem Junior Seminar
Oct 2023 Stochastic Regularized Majorization-Minimization — IFDS IDEAS Forum
Jul 2023 On the number of contingency tables and independence heuristic — University of Hawaii at Manoa [Slides]
Apr 2023 Scaling limit of soliton statistics of a multicolor box-ball system — U Chicago Probability Seminar [Slides]
Apr 2023 Scaling limit of soliton statistics of a multicolor box-ball system — Cornell Probability Seminar
Nov 2022 Mesoscale reconstruction of images and networks using tensor decomposition — IPAM Workshop IV: Multi-Modal Imaging with Deep Learning and Modeling [Slides]
Nov 2022 Scaling limit of soliton statistics of a multicolor box-ball system — CUNY Probability Seminar
Nov 2022 Learning low-rank mesoscale structure of networks — Columbia Applied Probability Seminar
Sep 2022 Scaling limit of soliton statistics of a multicolor box-ball system — CRM Workshop on Box-Ball Systems, Montreal
Jun 2022 Convergence and Complexity of Stochastic Regularized Majorization-Minimization — Probability Seminar, KIAS [Slides]
Jun 2022 Matrix and Tensor Factorization Models: Applications, Algorithms, and Theory — KRAFTON
Jun 2022 Matrix and Tensor Factorization Models: Applications, Algorithms, and Theory — Seoul National University
Jun 2022 Introduction to matrix and tensor factorization models and related stochastic nonconvex and constrained optimization algorithms — Institute for Basic Science, Biomedical Group
May 2022 Introduction to matrix and tensor factorization models and related stochastic nonconvex and constrained optimization algorithms — POSTECH MINDS Seminar
2022 Convergence and Complexity of Stochastic Block Majorization-Minimization — Statistics Seminar, UW–Madison
2022 Convergence and Complexity of Block Coordinate Descent with Diminishing Radius and Proximal Regularization — IFDS IDEAS Forum, UW–Madison
Oct 2021 Online Dictionary Learning from Dependent Data Samples and Networks — SILO Seminar, UW–Madison [Slides]
May 2021 Online Nonnegative Tensor Factorization and CP Decomposition — SIAM Minisymposium on Low Rank Methods in Data Science and Machine Learning [Slides]
Mar 2021 On the number of contingency tables and independence heuristic — AMS Special Session on Probability and Combinatorics
Dec 2020 Online matrix factorization for Markovian data — NeurIPS Workshop on Optimization for Machine Learning
Nov 2020 Stochastic optimization for dependent data streams and Network Dictionary Learning — UCLA Applied Mathematics Colloquium
Mar 2020 Online robust matrix factorization for dependent data streams — Applied Math and Data Science Seminar, HKUST
Feb 2020 Learning parts of networks by motif sampling and online matrix factorization — Information Theory and Applications
Jan 2020 Large deviations and one-sided scaling limit of randomized box-ball system — AMS Special Session on Random Matrices and Integrable Systems, JMM 2020
Jan 2020 Online matrix factorization for Markovian data — AMS Special Session on Iterative Methods for Large-Scale Data Analysis, JMM 2020
Jan 2020 Learning parts of networks by motif sampling and online matrix factorization — UCLA Applied Math Colloquium
Dec 2019 Scaling limit of soliton statistics in randomized Box-Ball Systems — Southern California Probability Symposium, IPAM
Nov 2019 Online matrix factorization for Markovian data — Probability Seminar, Seoul National University
Oct 2019 Sampling random graph homomorphisms and applications to network data analysis — Austin–TAMU Probability and Related Fields, TAMU
Oct 2019 Stability inequalities of some probabilistic network observables — TDA Seminar, UCLA
Oct 2019 Online nonnegative matrix factorization for Markovian data — Random Matrix Seminar, UCLA
Sep 2019 Phase transition in random contingency tables with non-uniform margins — Combinatorics Seminar, University of Michigan
May 2019 Stable network observables via dynamic embedding of motifs — Probability Seminar, CUNY
Apr 2019 Phase transition in random contingency tables with non-uniform margins — Probability/Combinatorics Seminar, OSU
Apr 2019 Stable network observables via dynamic embedding of motifs — TGDA Seminar, OSU
Apr 2019 Phase transition in random contingency tables with non-uniform margins — Probability Seminar, USC
Mar 2019 Synchronization of firefly cellular automata on various graphs — Applied Math Seminar, University of Alberta [Slides]
Mar 2019 Phase transition in random contingency tables with asymmetric margins — Interacting Particle Systems Conference, IPAM
Feb 2019 Stable network observables via dynamic embedding of motifs — Probability Seminar, UCSD
Jan 2019 Stable network observables via dynamic embedding of motifs — Network Journal Club, UCLA
Jan 2019 Stable network observables via dynamic embedding of motifs — Applied Math Seminar, UCLA
Jan 2019 Stable network observables via dynamic embedding of motifs — Probability Seminar, UCLA
Dec 2018 Dynamic embedding of motifs into networks — Probability Seminar, UC Irvine
Jun 2018 Phase transition in elementary box-ball system and its spatial generalization — Tokyo University
May 2018 Double jump phase transition in a soliton cellular automaton — Southeastern Probability Conference, Duke University
Apr 2018 Double jump phase transition in a soliton cellular automaton — Probability Seminar, UCLA
Mar 2018 Double jump phase transition in a soliton cellular automaton — Probability Seminar, University of Pennsylvania
Mar 2018 Double jump phase transition in a random soliton cellular automaton — Combinatorics Seminar, UMN
Jan 2018 Double jump phase transition in a random soliton cellular automaton — Combinatorics Seminar, University of Michigan
Jan 2018 Global synchronization of pulse-coupled oscillators on trees — AMS Contributed Papers on Applied Mathematics III, JMM 2018
Jan 2018 Limiting behavior of 3-color excitable media on arbitrary graphs — AMS Special Session on Emergent Phenomena in Discrete Models, JMM 2018
Jan 2018 Persistence of sums of correlated increments and clustering in cellular automata — AMS Special Session on Markov Chains, Markov Processes and Applications, JMM 2018
Mar 2017 Phase transition in a random soliton cellular automaton — Combinatorics and Probability Seminar, OSU
Oct 2016 Discrete excitable media on graphs — Graduate Student Seminar, OSU
Sep 2016 Discrete excitable media on graphs — Probability Seminar, Indiana University
Feb 2016 Synchronization of finite-state pulse-coupled oscillators on various network topologies — Hayes Graduate Research Forum, OSU
Feb 2016 Synchronization of finite-state pulse-coupled oscillators on various graphs — Probability Seminar, Cornell University
Jan 2016 Synchronization of finite-state pulse-coupled oscillators on various graphs — Korea Institute for Advanced Study
May 2015 Synchronization of finite-state pulse-coupled oscillators — HYKE Seminar, SNU
Oct 2015 Synchronization of finite-state pulse-coupled oscillators on various network topologies — Combinatorics and Probability Seminar, OSU
Sep 2015 Synchronization of finite-state pulse-coupled oscillators — Graduate Student Seminar, OSU