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PhD Student
Electrical and Systems Engineering
Innovation in Data Engineering and Science (IDEAS)
University of Pennsylvania

Philadelphia, PA 19104, USA

+1 (667) 910 4063
lpenn at seas dot upenn dot edu

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About Me (CV)

I am a PhD student at UPenn. My advisor is Dr. René Vidal.

I work on optimization, machine learning, and computer vision.

Topics and keywords of interest to me include

[2022 - ]: block coordinate descent (1 2 3) and related algorithms (4 5)
[2022 - ]: lifelong/continual learning (1 2 3)
[2021 - ]: geometric computer vision (1 2 3 4 5 6)

News & Academic Activities

[August, 2025] (Tutorial @ CoLLAs 2025): Mathematics of Continual Learning (based on this manuscript)
[November, 2024] (Talk @ ESE PhD Colloquium): Prehistory of Continual Learning and All Else That We Forget
[October 1, 2024] (Preprint): ICL-TSVD: Bridging Theory and Practice in Continual Learning with Pre-trained Models
[June 7, 2024] (ICML 2024 Spotlight, 335/9473≈3.5%): Block Acceleration Without Momentum
[April, 2024] (T-PAMI): ACM and HERE
[February 28, 2024] (CVPR 2024): Scalable 3D Registration with TEAR
[February 21, 2024] (JMLR): Unlabeled Principal Component Analysis and Matrix Completion
[November 21, 2023] (CPAL 2024): HARD: Hyperplane ARrangement Descent
[Summer 2023]: Internship @ Alibaba Group, Bellevue, WA, USA
[June 15, 2023]: Talk @ AI TIME (Virtual): The Ideal Continual Learner
[June 1, 2023] (Minisymposium @ SIAM OP23, Seattle): Fantastic Iteratively Reweighted Algorithms and Where to Find Them (abstract slides)
[May 24, 2023]: Preprint: Block Coordinate Descent on Smooth Manifolds
[April 24, 2023]: (ICML 2023) The Ideal Continual Learner: An Agent That Never Forgets
[March 21, 2023] (CVPR 2023 Highlight, 235/9155≈2.5%): Convergence of IRLS/GNC in Outlier-Robust Estimation
[December 8, 2022]: Talk @ AI TIME: Robust Rotation Search: Theory and Algorithms
[October 7, 2022]: Top Reviewer of NeurIPS 2022
[September 28, 2022]: Talk @ Flatiron Institute: A Tale of Two Villains (TheoriNet retreat)
[September 14, 2022]: NeurIPS 2022: Convergence rates of IRLS
[September 9, 2022]: Talk @ Vision Lab: "RETREAT" (internal retreat)
[August 17, 2022]: Talk @ VITA: "Rotation Search: Optimization Theory and Algorithm"
[July 26, 2022]: Talk @ ICCOPT: "Semidefinite Relaxations in Rotation Search"
[July 3, 2022] (ECCV 2022 Oral, 158/5803≈2.7%): Semidefinite Relaxations in Rotation Search
[April 22, 2022]: Highlighted Reviewer of ICLR 2022
[March 28, 2022] (CVPR 2022 Oral, 342/8161≈4.2%): Accurate Rotation and Correspondence Search (ARCS, slides)
[Spring 2022]: Received MINDS PhD fellowship
[September 28, 2021]: NeurIPS 2021: Unlabeled Principal Component Analysis
[July 21, 2021] (Appl Comput Harmon Anal): Homomorphic Sensing of Subspace Arrangements

[May 8, 2021]: ICML 2021: Sparse Homomorphic Sensing
[May 1, 2021]: ISIT 2021: Unsigned Matrix Completion
[March 13, 2021]: PhD offer from Dr. René Vidal (JHU). See you soon at Baltimore.