activity
20152025
most citedPerformance Analysis of a Cognitive Radio Network with an Energy Harvesting Secondary Transmitter under Nakagami-m Fading

33 citations · 47 across the 25 of their papers we have counts for

collaborators

25 papers

cs.LG2025

Frequency Hopping Synchronization by Reinforcement Learning for Satellite Communication System

Inkyu Kim, Sangkeum Lee, Haechan Jeong +2

Satellite communication systems (SCSs) used for tactical purposes require robust security and anti-jamming capabilities, making frequency hopping (FH) a powerful option. However, t…

cs.CL2025

Continuous Adversarial Text Representation Learning for Affective Recognition

Seungah Son, Andrez Saurez, Dongsoo Har

While pre-trained language models excel at semantic understanding, they often struggle to capture nuanced affective information critical for affective recognition tasks. To address…

cs.LG2023

Virtual Action Actor-Critic Framework for Exploration (Student Abstract)

Bumgeun Park, Taeyoung Kim, Quoc-Vinh Lai-Dang +1

Efficient exploration for an agent is challenging in reinforcement learning (RL). In this paper, a novel actor-critic framework namely virtual action actor-critic (VAAC), is propos…

cs.CL2023★ 1 cited

Enhanced Transformer Architecture for Natural Language Processing

Woohyeon Moon, Taeyoung Kim, Bumgeun Park +1

Transformer is a state-of-the-art model in the field of natural language processing (NLP). Current NLP models primarily increase the number of transformers to improve processing pe…

cs.CV2023

Sensor Fusion by Spatial Encoding for Autonomous Driving

Quoc-Vinh Lai-Dang, Jihui Lee, Bumgeun Park +1

Sensor fusion is critical to perception systems for task domains such as autonomous driving and robotics. Recently, the Transformer integrated with CNN has demonstrated high perfor…

cs.CV2023

Road Redesign Technique Achieving Enhanced Road Safety by Inpainting with a Diffusion Model

Sumit Mishra, Medhavi Mishra, Taeyoung Kim +1

Road infrastructure can affect the occurrence of road accidents. Therefore, identifying roadway features with high accident probability is crucial. Here, we introduce image inpaint…

cs.LG2022

Off-Policy Reinforcement Learning with Loss Function Weighted by Temporal Difference Error

Bumgeun Park, Taeyoung Kim, Woohyeon Moon +2

Training agents via off-policy deep reinforcement learning (RL) requires a large memory, named replay memory, that stores past experiences used for learning. These experiences are…

cs.AI2022

Reinforcement Learning for Predicting Traffic Accidents

Injoon Cho, Praveen Kumar Rajendran, Taeyoung Kim +1

As the demand for autonomous driving increases, it is paramount to ensure safety. Early accident prediction using deep learning methods for driving safety has recently gained much…

cs.RO2022

Kick-motion Training with DQN in AI Soccer Environment

Bumgeun Park, Jihui Lee, Taeyoung Kim +1

This paper presents a technique to train a robot to perform kick-motion in AI soccer by using reinforcement learning (RL). In RL, an agent interacts with an environment and learns…

cs.CV2022★ 1 cited

A Lightweight Domain Adaptive Absolute Pose Regressor Using Barlow Twins Objective

Praveen Kumar Rajendran, Quoc-Vinh Lai-Dang, Luiz Felipe Vecchietti +1

Identifying the camera pose for a given image is a challenging problem with applications in robotics, autonomous vehicles, and augmented/virtual reality. Lately, learning-based met…

eess.SP2022★ 1 cited

Power Management in Smart Residential Building with Deep Learning Model for Occupancy Detection by Usage Pattern of Electric Appliances

Sangkeum Lee, Sarvar Hussain Nengroo, Hojun Jin +4

With the growth of smart building applications, occupancy information in residential buildings is becoming more and more significant. In the context of the smart buildings' paradig…

cs.LG2022

Reinforcement Learning-Based Cooperative P2P Power Trading between DC Nanogrid Clusters with Wind and PV Energy Resources

Sangkeum Lee, Sarvar Hussain Nengroo, Hojun Jin +4

In replacing fossil fuels with renewable energy resources for carbon neutrality, the unbalanced resource production of intermittent wind and photovoltaic (PV) power is a critical i…

cs.RO2022★ 1 cited

Path Planning of Cleaning Robot with Reinforcement Learning

Woohyeon Moon, Bumgeun Park, Sarvar Hussain Nengroo +2

Recently, as the demand for cleaning robots has steadily increased, therefore household electricity consumption is also increasing. To solve this electricity consumption issue, the…

eess.SY2022★ 1 cited

Anomaly Detection of Smart Metering System for Power Management with Battery Storage System/Electric Vehicle

Sangkeum Lee, Sarvar Hussain Nengroo, Hojun Jin +4

A novel smart metering technique capable of anomaly detection was proposed for real-time home power management system. Smart meter data generated in real-time was obtained from 900…

eess.SY2022★ 1 cited

Development of Charging, Discharging Scheduling Algorithm for Economical and Energy Efficient Operation of Multi EV Charging Station

Hojun Jin, Sangkeum Lee, Sarvar Hussain Nengroo +1

As the number of electric vehicles (EVs) significantly increases, the excessive charging demand of parked EVs in the charging station may incur an instability problem to the electr…

cs.CV2022

RelMobNet: End-to-end relative camera pose estimation using a robust two-stage training

Praveen Kumar Rajendran, Sumit Mishra, Luiz Felipe Vecchietti +1

Relative camera pose estimation, i.e. estimating the translation and rotation vectors using a pair of images taken in different locations, is an important part of systems in augmen…

cs.CV2022★ 3 cited

Sensing accident-prone features in urban scenes for proactive driving and accident prevention

Sumit Mishra, Praveen Kumar Rajendran, Luiz Felipe Vecchietti +1

In urban cities, visual information on and along roadways is likely to distract drivers and lead to missing traffic signs and other accident-prone (AP) features. To avoid accidents…

eess.SY2021

Optimal Scheduling of Energy Storage for Power System with Capability of Sensing Short-term Future PV Power Production

Sarvar Hussain Nengroo, Sangkeum Lee, Hojun Jin +1

Constant rise in energy consumption that comes with the population growth and introduction of new technologies has posed critical issues such as efficient energy management on the…

cs.RO2021

Socially acceptable route planning and trajectory behavior analysis of personal mobility device for mobility management with improved sensing

Sumit Mishra, Praveen Kumar Rajendran, Dongsoo Har

In urban cities, with increasing acceptability of shared spaces used by pedestrians and personal mobility devices (PMDs), there is need for pragmatic socially ac-ceptable path plan…

cs.RO2021

Reinforcement Learning for Navigation of Mobile Robot with LiDAR

Inhwan Kim, Sarvar Hussain Nengroo, Dongsoo Har

This paper presents a technique for navigation of mobile robot with Deep Q-Network (DQN) combined with Gated Recurrent Unit (GRU). The DQN integrated with the GRU allows action ski…

cs.LG2021

Smart Metering System Capable of Anomaly Detection by Bi-directional LSTM Autoencoder

Sangkeum Lee, Hojun Jin, Sarvar Hussain Nengroo +4

Anomaly detection is concerned with a wide range of applications such as fault detection, system monitoring, and event detection. Identifying anomalies from metering data obtained…

eess.SY2021★ 1 cited

Power Management of Microgrid Integrated with Electric Vehicles in Residential Parking Station

Hojun Jin, Sarvar Hussain Nengroo, Sangkeum Lee +1

Lately, increasing number of electric vehicles (EVs) in residential parking station has become an important issue, because excessive number of EVs can destabilize the power system…

cs.AI2021

Two-stage training algorithm for AI robot soccer

Taeyoung Kim, Luiz Felipe Vecchietti, Kyujin Choi +2

In multi-agent reinforcement learning, the cooperative learning behavior of agents is very important. In the field of heterogeneous multi-agent reinforcement learning, cooperative…

cs.IT2017★ 33 cited

Performance Analysis of a Cognitive Radio Network with an Energy Harvesting Secondary Transmitter under Nakagami-m Fading

Binh Van Nguyen, Hyoyoung Jung, Dongsoo Har +1

In this paper, we consider an overlay cognitive radio network, in which a secondary transmitter (ST) is willing to relay the information of a primary transmitter toward a primary r…