Search Results for author: Mengmeng Li

Found 4 papers, 1 papers with code

TSOM: Small Object Motion Detection Neural Network Inspired by Avian Visual Circuit

no code implementations1 Apr 2024 Pignge Hu, Xiaoteng Zhang, Mengmeng Li, Yingjie Zhu, Li Shi

As an inspiration from nature, the avian visual system is capable of processing motion information in various complex aerial scenes, and its Retina-OT-Rt visual circuit is highly sensitive to capturing the motion information of small objects from high altitudes.

Motion Detection

A Large Deviations Perspective on Policy Gradient Algorithms

no code implementations13 Nov 2023 Wouter Jongeneel, Mengmeng Li, Daniel Kuhn

Motivated by policy gradient methods in the context of reinforcement learning, we derive the first large deviation rate function for the iterates generated by stochastic gradient descent for possibly non-convex objectives satisfying a Polyak-Lojasiewicz condition.

Policy Gradient Methods reinforcement-learning

Policy Gradient Algorithms for Robust MDPs with Non-Rectangular Uncertainty Sets

no code implementations30 May 2023 Mengmeng Li, Daniel Kuhn, Tobias Sutter

We propose policy gradient algorithms for robust infinite-horizon Markov decision processes (MDPs) with non-rectangular uncertainty sets, thereby addressing an open challenge in the robust MDP literature.

Distributionally Robust Optimization with Markovian Data

1 code implementation12 Jun 2021 Mengmeng Li, Tobias Sutter, Daniel Kuhn

We study a stochastic program where the probability distribution of the uncertain problem parameters is unknown and only indirectly observed via finitely many correlated samples generated by an unknown Markov chain with $d$ states.

Dimensionality Reduction

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