Search Results for author: Nirmalya Roy

Found 16 papers, 4 papers with code

EnCoMP: Enhanced Covert Maneuver Planning using Offline Reinforcement Learning

no code implementations29 Mar 2024 Jumman Hossain, Abu-Zaher Faridee, Nirmalya Roy

Cover navigation in complex environments is a critical challenge for autonomous robots, requiring the identification and utilization of environmental cover while maintaining efficient navigation.

reinforcement-learning

TopoNav: Topological Navigation for Efficient Exploration in Sparse Reward Environments

no code implementations6 Feb 2024 Jumman Hossain, Abu-Zaher Faridee, Nirmalya Roy, Jade Freeman, Timothy Gregory, Theron T. Trout

Additionally, TopoNav incorporates intrinsic motivation to guide exploration toward relevant regions and frontier nodes in the topological map, addressing the challenges of sparse extrinsic rewards.

Efficient Exploration Hierarchical Reinforcement Learning

Enhancing Robotic Navigation: An Evaluation of Single and Multi-Objective Reinforcement Learning Strategies

no code implementations13 Dec 2023 Vicki Young, Jumman Hossain, Nirmalya Roy

This study presents a comparative analysis between single-objective and multi-objective reinforcement learning methods for training a robot to navigate effectively to an end goal while efficiently avoiding obstacles.

Multi-Objective Reinforcement Learning Navigate +1

CoverNav: Cover Following Navigation Planning in Unstructured Outdoor Environment with Deep Reinforcement Learning

no code implementations12 Aug 2023 Jumman Hossain, Abu-Zaher Faridee, Nirmalya Roy, Anjan Basak, Derrik E. Asher

We evaluate CoverNav using the Unity simulation environment and show that it guarantees dynamically feasible velocities in the terrain when fed with an elevation map generated by another DRL based navigation algorithm.

Autonomous Navigation Unity

Novel Categories Discovery Via Constraints on Empirical Prediction Statistics

1 code implementation7 Jul 2023 Zahid Hasan, Abu Zaher Md Faridee, Masud Ahmed, Sanjay Purushotham, Heesung Kwon, Hyungtae Lee, Nirmalya Roy

As an alternative to the traditional pseudo-labeling-based approaches, we leverage the connection between the data sampling and the provided multinoulli (categorical) distribution of novel classes.

Clustering Pseudo Label +2

HeteroEdge: Addressing Asymmetry in Heterogeneous Collaborative Autonomous Systems

no code implementations5 May 2023 Mohammad Saeid Anwar, Emon Dey, Maloy Kumar Devnath, Indrajeet Ghosh, Naima Khan, Jade Freeman, Timothy Gregory, Niranjan Suri, Kasthuri Jayaraja, Sreenivasan Ramasamy Ramamurthy, Nirmalya Roy

Finally, we propose and optimize a novel parameter split-ratio, which indicates the proportion of the data required to be offloaded to another device while considering the networking bandwidth, busy factor, memory (CPU, GPU, RAM), and power constraints of the devices in the testbed.

Object Recognition

Recent Advancements in Machine Learning For Cybercrime Prediction

no code implementations10 Apr 2023 Lavanya Elluri, Varun Mandalapu, Piyush Vyas, Nirmalya Roy

We start the review with some standard methods cybercriminals use and then focus on the latest machine and deep learning techniques, which detect anomalous behavior and identify potential threats.

Transfer Learning

Domain Adaptation for Inertial Measurement Unit-based Human Activity Recognition: A Survey

no code implementations7 Apr 2023 Avijoy Chakma, Abu Zaher Md Faridee, Indrajeet Ghosh, Nirmalya Roy

Machine learning-based wearable human activity recognition (WHAR) models enable the development of various smart and connected community applications such as sleep pattern monitoring, medication reminders, cognitive health assessment, sports analytics, etc.

Domain Adaptation Human Activity Recognition +2

Crime Prediction Using Machine Learning and Deep Learning: A Systematic Review and Future Directions

no code implementations28 Mar 2023 Varun Mandalapu, Lavanya Elluri, Piyush Vyas, Nirmalya Roy

The study provides access to the datasets used for crime prediction by researchers and analyzes prominent approaches applied in machine learning and deep learning algorithms to predict crime, offering insights into different trends and factors related to criminal activities.

Crime Prediction

Mixed Precision Quantization to Tackle Gradient Leakage Attacks in Federated Learning

no code implementations22 Oct 2022 Pretom Roy Ovi, Emon Dey, Nirmalya Roy, Aryya Gangopadhyay

We empirically proved the validity of our method with three benchmark datasets and found a minimal accuracy drop in the global model after applying quantization.

Federated Learning Quantization

Demo: RhythmEdge: Enabling Contactless Heart Rate Estimation on the Edge

1 code implementation13 Aug 2022 Zahid Hasan, Emon Dey, Sreenivasan Ramasamy Ramamurthy, Nirmalya Roy, Archan Misra

In this demo paper, we design and prototype RhythmEdge, a low-cost, deep-learning-based contact-less system for regular HR monitoring applications.

Edge-computing Heart rate estimation

Localized Flood DetectionWith Minimal Labeled Social Media Data Using Transfer Learning

no code implementations10 Feb 2020 Neha Singh, Nirmalya Roy, Aryya Gangopadhyay

We investigate the problem of localized flood detection using the social sensing model (Twitter) in order to provide an efficient, reliable and accurate flood text classification model with minimal labeled data.

Decision Making General Classification +4

Estimating Buildings' Parameters over Time Including Prior Knowledge

1 code implementation9 Jan 2019 Nilavra Pathak, James Foulds, Nirmalya Roy, Nilanjan Banerjee, Ryan Robucci

We perform extensive evaluations on two datasets to understand the generative process and show that the Bayesian approach is more interpretable.

Causal Inference Transfer Learning +1

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