Search Results for author: Seungjae Lee

Found 17 papers, 7 papers with code

DNA 1.0 Technical Report

no code implementations18 Jan 2025 Jungyup Lee, Jemin Kim, Sang Park, Seungjae Lee

In this report, we present DNA 1. 0 8B Instruct, a state-of-the-art bilingual language model optimized for Korean and English language tasks.

PR-CARA: Proactive V2X Resource Allocation with Extended 1-Stage SCI and Deep Learning-based Sensing Matrix Estimator

no code implementations18 Dec 2024 Taesik Nam, Seungjae Lee, Kiwoong Park, Sunbeom Kwon, Nathan Jeong, Han-Shin Jo, Jong-Gwan Yook

Simulation results demonstrate that the proposed deep-learning-based proactive resource allocation algorithm, with the extended 1-stage SCI system, reduces packet collisions and improves the transmission signal-to-interference-plus-noise ratio (SINR), thereby significantly enhancing communication reliability compared to the benchmark resource allocation algorithm.

Collision Avoidance

Robot Utility Models: General Policies for Zero-Shot Deployment in New Environments

1 code implementation9 Sep 2024 Haritheja Etukuru, Norihito Naka, Zijin Hu, Seungjae Lee, Julian Mehu, Aaron Edsinger, Chris Paxton, Soumith Chintala, Lerrel Pinto, Nur Muhammad Mahi Shafiullah

In this work, we present Robot Utility Models (RUMs), a framework for training and deploying zero-shot robot policies that can directly generalize to new environments without any finetuning.

Imitation Learning

Behavior Generation with Latent Actions

1 code implementation5 Mar 2024 Seungjae Lee, Yibin Wang, Haritheja Etukuru, H. Jin Kim, Nur Muhammad Mahi Shafiullah, Lerrel Pinto

Unlike language or image generation, decision making requires modeling actions - continuous-valued vectors that are multimodal in their distribution, potentially drawn from uncurated sources, where generation errors can compound in sequential prediction.

Autonomous Driving Image Generation +2

Diversify & Conquer: Outcome-directed Curriculum RL via Out-of-Distribution Disagreement

no code implementations30 Oct 2023 Daesol Cho, Seungjae Lee, H. Jin Kim

Reinforcement learning (RL) often faces the challenges of uninformed search problems where the agent should explore without access to the domain knowledge such as characteristics of the environment or external rewards.

Reinforcement Learning (RL)

Detection of Pedestrian Turning Motions to Enhance Indoor Map Matching Performance

no code implementations4 Sep 2023 Seunghyeon Park, Taewon Kang, Seungjae Lee, Joon Hyo Rhee

In summary, our research contributes to the development of a more accurate and reliable pedestrian navigation system by leveraging smartphone IMU data and advanced algorithms for turn detection in indoor environments.

SNeRL: Semantic-aware Neural Radiance Fields for Reinforcement Learning

no code implementations27 Jan 2023 Dongseok Shim, Seungjae Lee, H. Jin Kim

As previous representations for reinforcement learning cannot effectively incorporate a human-intuitive understanding of the 3D environment, they usually suffer from sub-optimal performances.

3D Reconstruction Novel View Synthesis +3

Outcome-directed Reinforcement Learning by Uncertainty & Temporal Distance-Aware Curriculum Goal Generation

1 code implementation27 Jan 2023 Daesol Cho, Seungjae Lee, H. Jin Kim

Current reinforcement learning (RL) often suffers when solving a challenging exploration problem where the desired outcomes or high rewards are rarely observed.

reinforcement-learning Reinforcement Learning (RL)

DHRL: A Graph-Based Approach for Long-Horizon and Sparse Hierarchical Reinforcement Learning

1 code implementation11 Oct 2022 Seungjae Lee, Jigang Kim, Inkyu Jang, H. Jin Kim

Hierarchical Reinforcement Learning (HRL) has made notable progress in complex control tasks by leveraging temporal abstraction.

Hierarchical Reinforcement Learning reinforcement-learning +2

Patchwork++: Fast and Robust Ground Segmentation Solving Partial Under-Segmentation Using 3D Point Cloud

2 code implementations25 Jul 2022 Seungjae Lee, Hyungtae Lim, Hyun Myung

Moreover, even if the parameters are well adjusted, a partial under-segmentation problem can still emerge, which implies ground segmentation failures in some regions.

Object Recognition Segmentation

PaGO-LOAM: Robust Ground-Optimized LiDAR Odometry

1 code implementation1 Jun 2022 Dong-Uk Seo, Hyungtae Lim, Seungjae Lee, Hyun Myung

In this paper, a robust ground-optimized LiDAR odometry framework is proposed to facilitate the study to check the effect of ground segmentation on LiDAR SLAM based on the state-of-the-art (SOTA) method.

Segmentation

High-contrast, speckle-free, true 3D holography via binary CGH optimization

no code implementations7 Jan 2022 Byounghyo Lee, Dongyeon Kim, Seungjae Lee, Chun Chen, Byoungho Lee

Here, we propose the practical solution to realize speckle-free, high-contrast, true 3D holography by combining random-phase, temporal multiplexing, binary holography, and binary optimization.

3D Holography Quantization +1

Simulation Studies on Deep Reinforcement Learning for Building Control with Human Interaction

no code implementations14 Mar 2021 Donghwan Lee, Niao He, Seungjae Lee, Panagiota Karava, Jianghai Hu

The building sector consumes the largest energy in the world, and there have been considerable research interests in energy consumption and comfort management of buildings.

Deep Reinforcement Learning Management +2

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