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Homayoun Najjaran

9 accepted papers

2024

Bag of Views: An Appearance-Based Approach to Next-Best-View Planning for 3D Reconstruction

RA-L 2024

UAV-based intelligent data acquisition for 3D reconstruction and monitoring of infrastructure has experienced an increasing surge of interest due to recent advancements in image processing and deep learning-based techniques. View planning is an essential part of this task that dictates the informati

Cited by 11SourcecodeScholar
2024

Meta SAC-Lag: Towards Deployable Safe Reinforcement Learning via MetaGradient-based Hyperparameter Tuning

IROS 2024poster

Safe Reinforcement Learning (Safe RL) is one of the prevalently studied subcategories of trial-and-error-based methods with the intention to be deployed on real-world systems. In safe RL, the goal is to maximize reward performance while minimizing constraints, often achieved by setting bounds on con…

Cited by 2SourceScholar
2024

Safety Optimized Reinforcement Learning via Multi-Objective Policy Optimization

ICRA 2024poster

Safe reinforcement learning (Safe RL) refers to a class of techniques that aim to prevent RL algorithms from violating constraints in the process of decision-making and exploration during trial and error. In this paper, a novel model-free Safe RL algorithm, formulated based on the multi-objective po…

Cited by 3SourceScholar
2024

The Effectiveness of State Representation Model in Multi-Agent Proximal Policy Optimization for Multi-Agent Path Finding

IROS 2024poster

Multi-agent pathfinding plays a crucial role in various robot applications. Recently, deep reinforcement learning methods have been adopted to solve large-scale planning problems in a decentralized manner. Nonetheless, such approaches pose challenges such as non-stationarity and partial observabilit…

Cited by 0SourceScholar
2022

A High-Fidelity Simulation Platform for Industrial Manufacturing by Incorporating Robotic Dynamics Into an Industrial Simulation Tool

RA-L 2022

Simulation provides an efficient and safe evaluation solution for industrial automation to pretest software before deploying it in real systems. However, only high-fidelity simulation environments that precisely reconstruct the behavioral patterns of real systems can guarantee a successful transfer

Cited by 13SourceScholar
2021

Evaluating Initialization Methods for Discriminative and Fast-Converging HGMM Point Clouds

ICRA 2021poster

Discriminative data representations for point cloud data are critical for computer vision applications. Recently, the Hierarchical Gaussian Mixture Model (HGMM) has become a popular representation due to its compactness and real-time execution. However, HGMM still lacks a well-designed and robust in…

Cited by 1SourceScholar
2017

Real-time visual tracking via robust Kernelized Correlation Filter

ICRA 2017poster

There has been an increasing interest in the use of correlation filters for visual object tracking due to their impressive tracking performance. However, existing correlation filter based tracking methods, such as Struck and Kernelized Correlation Filter (KCF), cannot always solve tracking problems…

Cited by 11SourceScholar