Search Results for author: Imtiaz Ahmed

Found 31 papers, 1 papers with code

LLM-Integrated Digital Twins for Hierarchical Resource Allocation in 6G Networks

no code implementations23 Jun 2025 Majumder Haider, Imtiaz Ahmed, Zoheb Hassan, Kamrul Hasan, H. Vincent Poor

Next-generation (NextG) wireless networks are expected to require intelligent, scalable, and context-aware radio resource management (RRM) to support ultra-dense deployments, diverse service requirements, and dynamic network conditions.

Decision Making Management

Towards Efficient Real-Time Video Motion Transfer via Generative Time Series Modeling

no code implementations7 Apr 2025 Tasmiah Haque, Md. Asif Bin Syed, Byungheon Jeong, Xue Bai, Sumit Mohan, Somdyuti Paul, Imtiaz Ahmed, Srinjoy Das

We propose a deep learning framework designed to significantly optimize bandwidth for motion-transfer-enabled video applications, including video conferencing, virtual reality interactions, health monitoring systems, and vision-based real-time anomaly detection.

Anomaly Detection Optical Flow Estimation +2

Confidence Adjusted Surprise Measure for Active Resourceful Trials (CA-SMART): A Data-driven Active Learning Framework for Accelerating Material Discovery under Resource Constraints

no code implementations27 Mar 2025 Ahmed Shoyeb Raihan, Zhichao Liu, Tanveer Hossain Bhuiyan, Imtiaz Ahmed

In recent years, active learning, where a surrogate machine learning (ML) model mimics the scientific discovery process of a human scientist, has emerged as a promising approach to address these challenges by guiding experimentation toward high-value outcomes with a limited budget.

Active Learning Bayesian Optimization +1

Digital Twin Enabled Site Specific Channel Precoding: Over the Air CIR Inference

no code implementations27 Jan 2025 Majumder Haider, Imtiaz Ahmed, Zoheb Hassan, Timothy J. O'Shea, Lingjia Liu, Danda B. Rawat

This paper investigates the significance of designing a reliable, intelligent, and true physical environment-aware precoding scheme by leveraging an accurately designed channel twin model to obtain realistic channel state information (CSI) for cellular communication systems.

A Data-Efficient Sequential Learning Framework for Melt Pool Defect Classification in Laser Powder Bed Fusion

no code implementations16 Nov 2024 Ahmed Shoyeb Raihan, Austin Harper, Israt Zarin Era, Omar Al-Shebeeb, Thorsten Wuest, Srinjoy Das, Imtiaz Ahmed

Ensuring the quality and reliability of Metal Additive Manufacturing (MAM) components is crucial, especially in the Laser Powder Bed Fusion (L-PBF) process, where melt pool defects such as keyhole, balling, and lack of fusion can significantly compromise structural integrity.

Exploring the Efficacy of Group-Normalization in Deep Learning Models for Alzheimer's Disease Classification

no code implementations1 Apr 2024 Gousia Habib, Ishfaq Ahmed Malik, Jameel Ahmad, Imtiaz Ahmed, Shaima Qureshi

Group Normalization computations are accurate across a wide range of batch sizes and are independent of batch size.

Empowering Healthcare through Privacy-Preserving MRI Analysis

no code implementations14 Mar 2024 Al Amin, Kamrul Hasan, Saleh Zein-Sabatto, Deo Chimba, Liang Hong, Imtiaz Ahmed, Tariqul Islam

Integrating DL within the Federated Learning (FL) framework has yielded a methodology that offers precise and dependable diagnostics for detecting brain tumors.

Federated Learning Privacy Preserving

An Explainable AI Framework for Artificial Intelligence of Medical Things

no code implementations7 Mar 2024 Al Amin, Kamrul Hasan, Saleh Zein-Sabatto, Deo Chimba, Imtiaz Ahmed, Tariqul Islam

The healthcare industry has been revolutionized by the convergence of Artificial Intelligence of Medical Things (AIoMT), allowing advanced data-driven solutions to improve healthcare systems.

Decision Making Explainable artificial intelligence +1

An Augmented Surprise-guided Sequential Learning Framework for Predicting the Melt Pool Geometry

no code implementations10 Jan 2024 Ahmed Shoyeb Raihan, Hamed Khosravi, Tanveer Hossain Bhuiyan, Imtiaz Ahmed

Our study introduces a novel surprise-guided sequential learning framework, SurpriseAF-BO, signaling a significant shift in MAM.

Generative Adversarial Network

An unsupervised approach towards promptable defect segmentation in laser-based additive manufacturing by Segment Anything

no code implementations7 Dec 2023 Israt Zarin Era, Imtiaz Ahmed, Zhichao Liu, Srinjoy Das

To address these issues, we construct a framework for image segmentation using a state-of-the-art Vision Transformer (ViT) based Foundation model (Segment Anything Model) with a novel multi-point prompt generation scheme using unsupervised clustering.

Anomaly Detection Astronomy +3

Accelerating material discovery with a threshold-driven hybrid acquisition policy-based Bayesian optimization

no code implementations16 Nov 2023 Ahmed Shoyeb Raihan, Hamed Khosravi, Srinjoy Das, Imtiaz Ahmed

The UCB-to-EI switching policy dictated guided through continuous monitoring of the model uncertainty during each step of sequential sampling results in navigating through the MDS more efficiently while ensuring rapid convergence.

Bayesian Optimization

ML Algorithm Synthesizing Domain Knowledge for Fungal Spores Concentration Prediction

1 code implementation23 Sep 2023 Md Asif Bin Syed, Azmine Toushik Wasi, Imtiaz Ahmed

The pulp and paper manufacturing industry requires precise quality control to ensure pure, contaminant-free end products suitable for various applications.

Time Series

Building Energy Efficiency through Advanced Regression Models and Metaheuristic Techniques for Sustainable Management

no code implementations15 May 2023 Hamed Khosravi, Hadi Sahebi, Rahim khanizad, Imtiaz Ahmed

In the context of global sustainability, buildings are significant consumers of energy, emphasizing the necessity for innovative strategies to enhance efficiency and reduce environmental impact.

Management regression

Multi model LSTM architecture for Track Association based on Automatic Identification System Data

no code implementations4 Apr 2023 Md Asif Bin Syed, Imtiaz Ahmed

For decades, track association has been a challenging problem in marine surveillance, which involves the identification and association of vessel observations over time.

A Bi-LSTM Autoencoder Framework for Anomaly Detection -- A Case Study of a Wind Power Dataset

no code implementations17 Mar 2023 Ahmed Shoyeb Raihan, Imtiaz Ahmed

Anomalies refer to data points or events that deviate from normal and homogeneous events, which can include fraudulent activities, network infiltrations, equipment malfunctions, process changes, or other significant but infrequent events.

Anomaly Detection Time Series +1

Guiding the Sequential Experiments in Autonomous Experimentation Platforms through EI-based Bayesian Optimization and Bayesian Model Averaging

no code implementations26 Feb 2023 Ahmed Shoyeb Raihan, Imtiaz Ahmed

Afterward, we apply BMA to the same dataset by working with a set of predictive models and compare the performance of BMA with the traditional BO algorithm, which relies on a single model for approximation.

Bayesian Optimization

Towards Futuristic Autonomous Experimentation--A Surprise-Reacting Sequential Experiment Policy

no code implementations1 Dec 2021 Imtiaz Ahmed, Satish Bukkapatnam, Bhaskar Botcha, Yu Ding

We discuss whether it is beneficial to trade off exploitation versus exploration by measuring the element and degree of surprise associated with the immediate past observation.

Bayesian Optimization

Graph Regularized Autoencoder and its Application in Unsupervised Anomaly Detection

no code implementations29 Oct 2020 Imtiaz Ahmed, Travis Galoppo, Xia Hu, Yu Ding

In order to make dimensionality reduction effective for high-dimensional data embedding nonlinear low-dimensional manifold, it is understood that some sort of geodesic distance metric should be used to discriminate the data samples.

Clustering Dimensionality Reduction +1

A Spatio-temporal Track Association Algorithm Based on Marine Vessel Automatic Identification System Data

no code implementations29 Oct 2020 Imtiaz Ahmed, Mikyoung Jun, Yu Ding

The proposed approach is developed as an effort to address a data association challenge in which the number of vessels as well as the vessel identification are purposely withheld and time gaps are created in the datasets to mimic the real-life operational complexities under a threat environment.

Neighborhood Structure Assisted Non-negative Matrix Factorization and its Application in Unsupervised Point-wise Anomaly Detection

no code implementations17 Jan 2020 Imtiaz Ahmed, Xia Ben Hu, Mithun P. Acharya, Yu Ding

Dimensionality reduction is considered as an important step for ensuring competitive performance in unsupervised learning such as anomaly detection.

Anomaly Detection Dimensionality Reduction

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