Search Results for author: Arash Mohammadi

Found 48 papers, 9 papers with code

KnFu: Effective Knowledge Fusion

no code implementations18 Mar 2024 S. Jamal Seyedmohammadi, S. Kawa Atapour, Jamshid Abouei, Arash Mohammadi

Conventional FL, however, is susceptible to gradient inversion attacks, restrictively enforces a uniform architecture on local models, and suffers from model heterogeneity (model drift) due to non-IID local datasets.

Federated Learning Knowledge Distillation

FH-TabNet: Multi-Class Familial Hypercholesterolemia Detection via a Multi-Stage Tabular Deep Learning

no code implementations16 Mar 2024 Sadaf Khademi, Zohreh Hajiakhondi, Golnaz Vaseghi, Nizal Sarrafzadegan, Arash Mohammadi

Despite its significance, application of Deep Learning (DL) for FH detection is in its infancy, possibly, due to categorical nature of the underlying clinical data.

Binary Classification

NYCTALE: Neuro-Evidence Transformer for Adaptive and Personalized Lung Nodule Invasiveness Prediction

no code implementations15 Feb 2024 Sadaf Khademi, Anastasia Oikonomou, Konstantinos N. Plataniotis, Arash Mohammadi

Distinct from conventional Computed Tomography (CT)-based Deep Learning (DL) models, the NYCTALE performs predictions only when sufficient amount of evidence is accumulated.

Computed Tomography (CT) Lung Cancer Diagnosis

CLSA: Contrastive Learning-based Survival Analysis for Popularity Prediction in MEC Networks

no code implementations21 Mar 2023 Zohreh Hajiakhondi-Meybodi, Arash Mohammadi, Jamshid Abouei, Konstantinos N. Plataniotis

Mobile Edge Caching (MEC) integrated with Deep Neural Networks (DNNs) is an innovative technology with significant potential for the future generation of wireless networks, resulting in a considerable reduction in users' latency.

Contrastive Learning Survival Analysis

HYDRA-HGR: A Hybrid Transformer-based Architecture for Fusion of Macroscopic and Microscopic Neural Drive Information

no code implementations27 Oct 2022 Mansooreh Montazerin, Elahe Rahimian, Farnoosh Naderkhani, S. Farokh Atashzar, Hamid Alinejad-Rokny, Arash Mohammadi

At the same time, advancements in acquisition of High-Density sEMG signals (HD-sEMG) have resulted in a surge of significant interest on sEMG decomposition techniques to extract microscopic neural drive information.

Hand Gesture Recognition Hand-Gesture Recognition

Light-weighted CNN-Attention based architecture for Hand Gesture Recognition via ElectroMyography

no code implementations27 Oct 2022 Soheil Zabihi, Elahe Rahimian, Amir Asif, Arash Mohammadi

Advancements in Biological Signal Processing (BSP) and Machine-Learning (ML) models have paved the path for development of novel immersive Human-Machine Interfaces (HMI).

Hand Gesture Recognition Hand-Gesture Recognition +1

Hybrid Indoor Localization via Reinforcement Learning-based Information Fusion

no code implementations27 Oct 2022 Mohammad Salimibeni, Arash Mohammadi

The paper is motivated by the importance of the Smart Cities (SC) concept for future management of global urbanization.

Decision Making Indoor Localization +3

ViT-CAT: Parallel Vision Transformers with Cross Attention Fusion for Popularity Prediction in MEC Networks

no code implementations27 Oct 2022 Zohreh Hajiakhondi-Meybodi, Arash Mohammadi, Ming Hou, Jamshid Abouei, Konstantinos N. Plataniotis

Followed by a Cross Attention (CA) module as the Fusion Center (FC), the proposed ViT-CAT is capable of learning the mutual information between temporal and spatial correlations, as well, resulting in improving the classification accuracy, and decreasing the model's complexity about 8 times.

Time Series Analysis

Spatio-Temporal Hybrid Fusion of CAE and SWIn Transformers for Lung Cancer Malignancy Prediction

no code implementations27 Oct 2022 Sadaf Khademi, Shahin Heidarian, Parnian Afshar, Farnoosh Naderkhani, Anastasia Oikonomou, Konstantinos Plataniotis, Arash Mohammadi

The paper proposes a novel hybrid discovery Radiomics framework that simultaneously integrates temporal and spatial features extracted from non-thin chest Computed Tomography (CT) slices to predict Lung Adenocarcinoma (LUAC) malignancy with minimum expert involvement.

Computed Tomography (CT) Specificity

JUNO: Jump-Start Reinforcement Learning-based Node Selection for UWB Indoor Localization

no code implementations6 May 2022 Zohreh Hajiakhondi-Meybodi, Ming Hou, Arash Mohammadi

Performance of UWB-based localization systems, however, can significantly degrade because of Non Line of Sight (NLoS) connections between a mobile user and UWB beacons.

Indoor Localization reinforcement-learning +1

AKF-SR: Adaptive Kalman Filtering-based Successor Representation

no code implementations31 Mar 2022 Parvin Malekzadeh, Mohammad Salimibeni, Ming Hou, Arash Mohammadi, Konstantinos N. Plataniotis

Recent studies in neuroscience suggest that Successor Representation (SR)-based models provide adaptation to changes in the goal locations or reward function faster than model-free algorithms, together with lower computational cost compared to that of model-based algorithms.

Active Learning Decision Making

TraHGR: Transformer for Hand Gesture Recognition via ElectroMyography

no code implementations28 Mar 2022 Soheil Zabihi, Elahe Rahimian, Amir Asif, Arash Mohammadi

In other words, we propose a hybrid framework based on the transformer architecture, which is a relatively new and revolutionizing deep learning model.

Few-Shot Learning Hand Gesture Recognition +1

ViT-HGR: Vision Transformer-based Hand Gesture Recognition from High Density Surface EMG Signals

1 code implementation25 Jan 2022 Mansooreh Montazerin, Soheil Zabihi, Elahe Rahimian, Arash Mohammadi, Farnoosh Naderkhani

The proposed Vision Transformer-based Hand Gesture Recognition (ViT-HGR) framework can overcome the aforementioned training time problems and can accurately classify a large number of hand gestures from scratch without any need for data augmentation and/or transfer learning.

Data Augmentation Hand Gesture Recognition +2

DF-SSmVEP: Dual Frequency Aggregated Steady-State Motion Visual Evoked Potential Design with Bifold Canonical Correlation Analysis

no code implementations2 Jan 2022 Raika Karimi, Arash Mohammadi, Amir Asif, Habib Benali

To elicit SSmVEP, we designed a novel and innovative dual frequency aggregated modulation paradigm, referred to as the Dual Frequency Aggregated steady-state motion Visual Evoked Potential (DF-SSmVEP), by concurrently integrating "Radial Zoom" and "Rotation" motions in a single target without increasing the trial length.

EEG

BP-Net: Cuff-less, Calibration-free, and Non-invasive Blood Pressure Estimation via a Generic Deep Convolutional Architecture

no code implementations31 Dec 2021 Soheil Zabihi, Elahe Rahimian, Fatemeh Marefat, Amir Asif, Pedram Mohseni, Arash Mohammadi

Objective: The paper focuses on development of robust and accurate processing solutions for continuous and cuff-less blood pressure (BP) monitoring.

Blood pressure estimation

Multi-Agent Reinforcement Learning via Adaptive Kalman Temporal Difference and Successor Representation

no code implementations30 Dec 2021 Mohammad Salimibeni, Arash Mohammadi, Parvin Malekzadeh, Konstantinos N. Plataniotis

The proposed MAK-TD/SR frameworks consider the continuous nature of the action-space that is associated with high dimensional multi-agent environments and exploit Kalman Temporal Difference (KTD) to address the parameter uncertainty.

Multi-agent Reinforcement Learning OpenAI Gym +2

TEDGE-Caching: Transformer-based Edge Caching Towards 6G Networks

no code implementations1 Dec 2021 Zohreh Hajiakhondi Meybodi, Arash Mohammadi, Elahe Rahimian, Shahin Heidarian, Jamshid Abouei, Konstantinos N. Plataniotis

As a consequence of the COVID-19 pandemic, the demand for telecommunication for remote learning/working and telemedicine has significantly increased.

Hand Gesture Recognition Using Temporal Convolutions and Attention Mechanism

no code implementations17 Oct 2021 Elahe Rahimian, Soheil Zabihi, Amir Asif, Dario Farina, S. Farokh Atashzar, Arash Mohammadi

Advances in biosignal signal processing and machine learning, in particular Deep Neural Networks (DNNs), have paved the way for the development of innovative Human-Machine Interfaces for decoding the human intent and controlling artificial limbs.

Hand Gesture Recognition Hand-Gesture Recognition

CAE-Transformer: Transformer-based Model to Predict Invasiveness of Lung Adenocarcinoma Subsolid Nodules from Non-thin Section 3D CT Scans

no code implementations17 Oct 2021 Shahin Heidarian, Parnian Afshar, Anastasia Oikonomou, Konstantinos N. Plataniotis, Arash Mohammadi

Lung cancer is the leading cause of mortality from cancer worldwide and has various histologic types, among which Lung Adenocarcinoma (LUAC) has recently been the most prevalent one.

Computed Tomography (CT) Specificity

Data Shapley Value for Handling Noisy Labels: An application in Screening COVID-19 Pneumonia from Chest CT Scans

no code implementations17 Oct 2021 Nastaran Enshaei, Moezedin Javad Rafiee, Arash Mohammadi, Farnoosh Naderkhani

The SV of a data point, however, is not unique and depends on the learning model, the evaluation metric, and other data points collaborating in the training game.

TEMGNet: Deep Transformer-based Decoding of Upperlimb sEMG for Hand Gestures Recognition

no code implementations25 Sep 2021 Elahe Rahimian, Soheil Zabihi, Amir Asif, Dario Farina, S. Farokh Atashzar, Arash Mohammadi

We propose a novel Vision Transformer (ViT)-based neural network architecture (referred to as the TEMGNet) to classify and recognize upperlimb hand gestures from sEMG to be used for myocontrol of prostheses.

Robust Framework for COVID-19 Identification from a Multicenter Dataset of Chest CT Scans

no code implementations19 Sep 2021 Sadaf Khademi, Shahin Heidarian, Parnian Afshar, Nastaran Enshaei, Farnoosh Naderkhani, Moezedin Javad Rafiee, Anastasia Oikonomou, Akbar Shafiee, Faranak Babaki Fard, Konstantinos N. Plataniotis, Arash Mohammadi

We showed that while our proposed model is trained on a relatively small dataset acquired from only one imaging center using a specific scanning protocol, the model performs well on heterogeneous test sets obtained by multiple scanners using different technical parameters.

Online Dynamic Window (ODW) Assisted Two-stage LSTM Frameworks for Indoor Localization

no code implementations1 Sep 2021 Mohammadamin Atashi, Mohammad Salimibeni, Arash Mohammadi

The second framework is developed based on a Signal Processing Dynamic Windowing (SP-DW) approach to further reduce the required processing time of the two-stage LSTM-based model.

Indoor Localization

DQLEL: Deep Q-Learning for Energy-Optimized LoS/NLoS UWB Node Selection

no code implementations24 Aug 2021 Zohreh Hajiakhondi-Meybodi, Arash Mohammadi, Ming Hou, Konstantinos N. Plataniotis

Although UWB technology can enhance the accuracy of indoor positioning due to the use of a wide-frequency spectrum, there are key challenges ahead for its efficient implementation.

Q-Learning

TB-ICT: A Trustworthy Blockchain-Enabled System for Indoor COVID-19 Contact Tracing

no code implementations9 Aug 2021 Mohammad Salimibeni, Zohreh Hajiakhondi-Meybodi, Arash Mohammadi, Yingxu Wang

Recently, as a consequence of the COVID-19 pandemic, dependence on Contact Tracing (CT) models has significantly increased to prevent spread of this highly contagious virus and be prepared for the potential future ones.

Indoor Localization

COVID-Rate: An Automated Framework for Segmentation of COVID-19 Lesions from Chest CT Scans

no code implementations4 Jul 2021 Nastaran Enshaei, Anastasia Oikonomou, Moezedin Javad Rafiee, Parnian Afshar, Shahin Heidarian, Arash Mohammadi, Konstantinos N. Plataniotis, Farnoosh Naderkhani

In this context, first, the paper introduces an open access COVID-19 CT segmentation dataset containing 433 CT images from 82 patients that have been annotated by an expert radiologist.

Computed Tomography (CT) Specificity

COVID19-HPSMP: COVID-19 Adopted Hybrid and Parallel Deep Information Fusion Framework for Stock Price Movement Prediction

no code implementations2 Jan 2021 Farnoush Ronaghi, Mohammad Salimibeni, Farnoosh Naderkhani, Arash Mohammadi

Referred to as the COVID-19 adopted Hybrid and Parallel deep fusion framework for Stock price Movement Prediction (COVID19-HPSMP), innovative fusion strategies are used to combine scattered social media news related to COVID-19 with historical mark data.

Econometrics

FS-HGR: Few-shot Learning for Hand Gesture Recognition via ElectroMyography

no code implementations11 Nov 2020 Elahe Rahimian, Soheil Zabihi, Amir Asif, Dario Farina, Seyed Farokh Atashzar, Arash Mohammadi

This work is motivated by the recent advances in Deep Neural Networks (DNNs) and their widespread applications in human-machine interfaces.

Domain Adaptation Few-Shot Learning +2

MM-KTD: Multiple Model Kalman Temporal Differences for Reinforcement Learning

1 code implementation30 May 2020 Parvin Malekzadeh, Mohammad Salimibeni, Arash Mohammadi, Akbar Assa, Konstantinos N. Plataniotis

As a result, the proposed MM-KTD framework can learn the optimal policy with significantly reduced number of samples as compared to its DNN-based counterparts.

Active Learning reinforcement-learning +1

Siamese Neural Networks for EEG-based Brain-computer Interfaces

no code implementations3 Feb 2020 Soroosh Shahtalebi, Amir Asif, Arash Mohammadi

In this work, a Siamese architecture, which is developed based on Convolutional Neural Networks (CNN) and provides a binary output on the similarity of two inputs, is combined with OVR and OVO techniques to scale up for multi-class problems.

EEG Motor Imagery

XceptionTime: A Novel Deep Architecture based on Depthwise Separable Convolutions for Hand Gesture Classification

1 code implementation9 Nov 2019 Elahe Rahimian, Soheil Zabihi, Seyed Farokh Atashzar, Amir Asif, Arash Mohammadi

The proposed innovative XceptionTime is designed by integration of depthwise separable convolutions, adaptive average pooling, and a novel non-linear normalization technique.

Data Augmentation General Classification +3

From Hand-Crafted to Deep Learning-based Cancer Radiomics: Challenges and Opportunities

no code implementations23 Aug 2018 Parnian Afshar, Arash Mohammadi, Konstantinos N. Plataniotis, Anastasia Oikonomou, Habib Benali

Recent advancements in signal processing and machine learning coupled with developments of electronic medical record keeping in hospitals and the availability of extensive set of medical images through internal/external communication systems, have resulted in a recent surge of significant interest in "Radiomics".

Improved Explainability of Capsule Networks: Relevance Path by Agreement

no code implementations27 Feb 2018 Atefeh Shahroudnejad, Arash Mohammadi, Konstantinos N. Plataniotis

Recent advancements in signal processing and machine learning domains have resulted in an extensive surge of interest in deep learning models due to their unprecedented performance and high accuracy for different and challenging problems of significant engineering importance.

Explainable artificial intelligence Explainable Artificial Intelligence (XAI)

Brain Tumor Type Classification via Capsule Networks

no code implementations27 Feb 2018 Parnian Afshar, Arash Mohammadi, Konstantinos N. Plataniotis

Brain tumor is considered as one of the deadliest and most common form of cancer both in children and in adults.

Classification General Classification +1

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