Search Results for author: Kexin Shi

Found 4 papers, 0 papers with code

Enhanced Bayesian Personalized Ranking for Robust Hard Negative Sampling in Recommender Systems

no code implementations28 Mar 2024 Kexin Shi, Jing Zhang, Linjiajie Fang, Wenjia Wang, BingYi Jing

In implicit collaborative filtering, hard negative mining techniques are developed to accelerate and enhance the recommendation model learning.

Collaborative Filtering Recommendation Systems

Extreme Parkour with Legged Robots

no code implementations25 Sep 2023 Xuxin Cheng, Kexin Shi, Ananye Agarwal, Deepak Pathak

In this paper, we take a similar approach to developing robot parkour on a small low-cost robot with imprecise actuation and a single front-facing depth camera for perception which is low-frequency, jittery, and prone to artifacts.

Enhancing Recommender Systems: A Strategy to Mitigate False Negative Impact

no code implementations25 Nov 2022 Kexin Shi, Yun Zhang, BingYi Jing, Wenjia Wang

In implicit collaborative filtering (CF) task of recommender systems, recent works mainly focus on model structure design with promising techniques like graph neural networks (GNNs).

Collaborative Filtering Recommendation Systems

Learning Perception-Aware Agile Flight in Cluttered Environments

no code implementations4 Oct 2022 Yunlong Song, Kexin Shi, Robert Penicka, Davide Scaramuzza

Recently, neural control policies have outperformed existing model-based planning-and-control methods for autonomously navigating quadrotors through cluttered environments in minimum time.

Imitation Learning Reinforcement Learning (RL)

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