Search Results for author: Saeid Nahavandi

Found 47 papers, 10 papers with code

Machine Learning Meets Advanced Robotic Manipulation

no code implementations22 Sep 2023 Saeid Nahavandi, Roohallah Alizadehsani, Darius Nahavandi, Chee Peng Lim, Kevin Kelly, Fernando Bello

Automated industries lead to high quality production, lower manufacturing cost and better utilization of human resources.

A Review of Machine Learning-based Security in Cloud Computing

no code implementations10 Sep 2023 Aptin Babaei, Parham M. Kebria, Mohsen Moradi Dalvand, Saeid Nahavandi

Cloud Computing (CC) is revolutionizing the way IT resources are delivered to users, allowing them to access and manage their systems with increased cost-effectiveness and simplified infrastructure.

Cloud Computing

CoV-TI-Net: Transferred Initialization with Modified End Layer for COVID-19 Diagnosis

1 code implementation20 Sep 2022 Sadia Khanam, Mohammad Reza Chalak Qazani, Subrota Kumar Mondal, H M Dipu Kabir, Abadhan S. Sabyasachi, Houshyar Asadi, Keshav Kumar, Farzin Tabarsinezhad, Shady Mohamed, Abbas Khorsavi, Saeid Nahavandi

In this research, the PyTorch pre-trained models (VGG19\_bn and WideResNet -101) are applied in the MNIST dataset for the first time as initialization and with modified fully connected layers.

COVID-19 Diagnosis Image Classification +1

Controlled Dropout for Uncertainty Estimation

no code implementations6 May 2022 Mehedi Hasan, Abbas Khosravi, Ibrahim Hossain, Ashikur Rahman, Saeid Nahavandi

In this study, we present a new version of the traditional dropout layer where we are able to fix the number of dropout configurations.

Uncertainty Quantification

An Uncertainty-aware Loss Function for Training Neural Networks with Calibrated Predictions

no code implementations7 Oct 2021 Afshar Shamsi, Hamzeh Asgharnezhad, AmirReza Tajally, Saeid Nahavandi, Henry Leung

Uncertainty quantification of machine learning and deep learning methods plays an important role in enhancing trust to the obtained result.

Uncertainty Quantification

MCUa: Multi-level Context and Uncertainty aware Dynamic Deep Ensemble for Breast Cancer Histology Image Classification

1 code implementation24 Aug 2021 Zakaria Senousy, Mohammed M. Abdelsamea, Mohamed Medhat Gaber, Moloud Abdar, U Rajendra Acharya, Abbas Khosravi, Saeid Nahavandi

It exploits the high sensitivity to the multi-level contextual information using an uncertainty quantification component to accomplish a novel dynamic ensemble model. MCUamodelhas achieved a high accuracy of 98. 11% on a breast cancer histology image dataset.

Breast Cancer Histology Image Classification Classification +2

Uncertainty-Aware Credit Card Fraud Detection Using Deep Learning

no code implementations28 Jul 2021 Maryam Habibpour, Hassan Gharoun, Mohammadreza Mehdipour, AmirReza Tajally, Hamzeh Asgharnezhad, Afshar Shamsi, Abbas Khosravi, Miadreza Shafie-khah, Saeid Nahavandi, Joao P. S. Catalao

Countless research works of deep neural networks (DNNs) in the task of credit card fraud detection have focused on improving the accuracy of point predictions and mitigating unwanted biases by building different network architectures or learning models.

Fraud Detection Uncertainty Quantification

An Uncertainty-Aware Deep Learning Framework for Defect Detection in Casting Products

no code implementations24 Jul 2021 Maryam Habibpour, Hassan Gharoun, AmirReza Tajally, Afshar Shamsi, Hamzeh Asgharnezhad, Abbas Khosravi, Saeid Nahavandi

Secondly, to achieve a reliable classification and to measure epistemic uncertainty, we employ an uncertainty quantification (UQ) technique (ensemble of MLP models) using features extracted from four pre-trained CNNs.

Defect Detection Image Classification +2

Confidence Aware Neural Networks for Skin Cancer Detection

no code implementations19 Jul 2021 Donya Khaledyan, AmirReza Tajally, Ali Sarkhosh, Afshar Shamsi, Hamzeh Asgharnezhad, Abbas Khosravi, Saeid Nahavandi

Deep learning (DL) models have received particular attention in medical imaging due to their promising pattern recognition capabilities.

Transfer Learning

UncertaintyFuseNet: Robust Uncertainty-aware Hierarchical Feature Fusion Model with Ensemble Monte Carlo Dropout for COVID-19 Detection

1 code implementation18 May 2021 Moloud Abdar, Soorena Salari, Sina Qahremani, Hak-Keung Lam, Fakhri Karray, Sadiq Hussain, Abbas Khosravi, U. Rajendra Acharya, Vladimir Makarenkov, Saeid Nahavandi

Differently from most of existing studies, which used either CT scan or X-ray images in COVID-19-case classification, we present a simple but efficient deep learning feature fusion model, called UncertaintyFuseNet, which is able to classify accurately large datasets of both of these types of images.

Computed Tomography (CT)

Time series forecasting of new cases and new deaths rate for COVID-19 using deep learning methods

no code implementations28 Apr 2021 Nooshin Ayoobi, Danial Sharifrazi, Roohallah Alizadehsani, Afshin Shoeibi, Juan M. Gorriz, Hossein Moosaei, Abbas Khosravi, Saeid Nahavandi, Abdoulmohammad Gholamzadeh Chofreh, Feybi Ariani Goni, Jiri Jaromir Klemes, Amir Mosavi

This study is novel as it carries out a comprehensive evaluation of the aforementioned three deep learning methods and their bidirectional extensions to perform prediction on COVID-19 new cases and new death rate time series.

Time Series Time Series Forecasting

A Visual Communication Map for Multi-Agent Deep Reinforcement Learning

no code implementations27 Feb 2020 Ngoc Duy Nguyen, Thanh Thi Nguyen, Doug Creighton, Saeid Nahavandi

In this paper, we have proposed a more scalable approach that not only deals with a great number of agents but also enables collaboration between dissimilar functional agents and compatibly combined with any deep reinforcement learning methods.

reinforcement-learning Reinforcement Learning (RL)

Review, Analysis and Design of a Comprehensive Deep Reinforcement Learning Framework

no code implementations27 Feb 2020 Ngoc Duy Nguyen, Thanh Thi Nguyen, Hai Nguyen, Doug Creighton, Saeid Nahavandi

However, development of a deep RL-based system is challenging because of various issues such as the selection of a suitable deep RL algorithm, its network configuration, training time, training methods, and so on.

reinforcement-learning Reinforcement Learning (RL)

Optimal Uncertainty-guided Neural Network Training

no code implementations30 Dec 2019 H M Dipu Kabir, Abbas Khosravi, Abdollah Kavousi-Fard, Saeid Nahavandi, Dipti Srinivasan

Most of the existing cost functions of uncertainty guided NN training are not customizable and the convergence of training is uncertain.

Prediction Intervals Uncertainty Quantification

Deep Learning for Deepfakes Creation and Detection: A Survey

no code implementations25 Sep 2019 Thanh Thi Nguyen, Quoc Viet Hung Nguyen, Dung Tien Nguyen, Duc Thanh Nguyen, Thien Huynh-The, Saeid Nahavandi, Thanh Tam Nguyen, Quoc-Viet Pham, Cuong M. Nguyen

By reviewing the background of deepfakes and state-of-the-art deepfake detection methods, this study provides a comprehensive overview of deepfake techniques and facilitates the development of new and more robust methods to deal with the increasingly challenging deepfakes.

DeepFake Detection Face Swapping

Real-time Intent Prediction of Pedestrians for Autonomous Ground Vehicles via Spatio-Temporal DenseNet

no code implementations22 Apr 2019 Khaled Saleh, Mohammed Hossny, Saeid Nahavandi

We trained and evaluated our framework based on real data collected from urban traffic environments.

Realistic Hair Simulation Using Image Blending

no code implementations19 Apr 2019 Mohamed Attia, Mohammed Hossny, Saeid Nahavandi, Anousha Yazdabadi, Hamed Asadi

In this presented work, we propose a realistic hair simulator using image blending for dermoscopic images.

Benchmarking Data Augmentation

Deep Reinforcement Learning for Multi-Agent Systems: A Review of Challenges, Solutions and Applications

no code implementations31 Dec 2018 Thanh Thi Nguyen, Ngoc Duy Nguyen, Saeid Nahavandi

Reinforcement learning (RL) algorithms have been around for decades and employed to solve various sequential decision-making problems.

Decision Making Reinforcement Learning (RL) +1

Multi-Agent Deep Reinforcement Learning with Human Strategies

no code implementations12 Jun 2018 Thanh Nguyen, Ngoc Duy Nguyen, Saeid Nahavandi

In this paper, we introduce an approach that integrates human strategies to increase the exploration capacity of multiple deep reinforcement learning agents.

reinforcement-learning Reinforcement Learning (RL)

A Human Mixed Strategy Approach to Deep Reinforcement Learning

no code implementations5 Apr 2018 Ngoc Duy Nguyen, Saeid Nahavandi, Thanh Nguyen

In 2015, Google's DeepMind announced an advancement in creating an autonomous agent based on deep reinforcement learning (DRL) that could beat a professional player in a series of 49 Atari games.

Atari Games Efficient Exploration +2

Multi-Residual Networks: Improving the Speed and Accuracy of Residual Networks

1 code implementation19 Sep 2016 Masoud Abdi, Saeid Nahavandi

We also demonstrate that our model outperforms very deep residual networks by 0. 22% (top-1 error) on the full ImageNet 2012 classification dataset.

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