Search Results for author: Roozbeh Rajabi

Found 18 papers, 2 papers with code

Diagnosis of Skin Cancer Using VGG16 and VGG19 Based Transfer Learning Models

no code implementations1 Apr 2024 Amir Faghihi, Mohammadreza Fathollahi, Roozbeh Rajabi

The proposed model increased classification accuracy by 3% (from 94. 2% to 98. 18%) in comparison with other methods.

Classification Image Classification +4

Non-Intrusive Load Monitoring (NILM) using Deep Neural Networks: A Review

no code implementations8 Jun 2023 Mohammad Irani Azad, Roozbeh Rajabi, Abouzar Estebsari

Various methods, including machine learning and deep learning, have been used to implement and improve NILM algorithms.

Management Non-Intrusive Load Monitoring +1

Sequence-to-Sequence Model with Transformer-based Attention Mechanism and Temporal Pooling for Non-Intrusive Load Monitoring

no code implementations8 Jun 2023 Mohammad Irani Azad, Roozbeh Rajabi, Abouzar Estebsari

This paper presents a novel Sequence-to-Sequence (Seq2Seq) model based on a transformer-based attention mechanism and temporal pooling for Non-Intrusive Load Monitoring (NILM) of smart buildings.

Computational Efficiency Non-Intrusive Load Monitoring

Electricity Price Forecasting Model based on Gated Recurrent Units

no code implementations28 Jul 2022 Nafise Rezaei, Roozbeh Rajabi, Abouzar Estebsari

The participation of consumers and producers in demand response programs has increased in smart grids, which reduces investment and operation costs of power systems.

Spectral Unmixing of Hyperspectral Images Based on Block Sparse Structure

no code implementations10 Apr 2022 Seyed Hossein Mosavi Azarang, Roozbeh Rajabi, Hadi Zayyani, Amin Zehtabian

Spectral unmixing is then used as a technique to extract the spectral characteristics of the different materials within the mixed pixels and to recover the spectrum of each pure spectral signature, called endmember.

Hyperspectral Unmixing

Deep Learning Based Framework for Iranian License Plate Detection and Recognition

no code implementations18 Jan 2022 Mojtaba Shahidi Zandi, Roozbeh Rajabi

Also, the Faster R-CNN network trained and tested on the developed dataset and achieved 98. 97% recall, 99. 9% precision, and 98. 8% accuracy.

License Plate Detection License Plate Recognition +1

Short-Term Load Forecasting Using Time Pooling Deep Recurrent Neural Network

no code implementations26 Sep 2021 Elahe Khoshbakhti Vaygan, Roozbeh Rajabi, Abouzar Estebsari

In this paper, we review some of the existing Deep Learning-based methods and present our solution using Time Pooling Deep Recurrent Neural Network.

Load Forecasting Management

Drone Detection Using Convolutional Neural Networks

no code implementations3 Jul 2021 Fatemeh Mahdavi, Roozbeh Rajabi

In this study, the drone was detected using three methods of classification of convolutional neural network (CNN), support vector machine (SVM), and nearest neighbor.

Classification

Clustered Multitask Nonnegative Matrix Factorization for Spectral Unmixing of Hyperspectral Data

no code implementations16 May 2019 Sara Khoshsokhan, Roozbeh Rajabi, Hadi Zayyani

In this paper, the new algorithm based on clustered multitask network is proposed to solve spectral unmixing problem in hyperspectral imagery.

Clustering

Hyperspectral Unmixing Based on Clustered Multitask Networks

no code implementations27 Dec 2018 Sara Khoshsokhan, Roozbeh Rajabi, Hadi Zayyani

In this paper, at first hyperspectral images are clustered by fuzzy c- means method, and then a new algorithm based on sparsity constrained distributed optimization is used for spectral unmixing.

Distributed Optimization Hyperspectral Unmixing

Distributed Unmixing of Hyperspectral Data With Sparsity Constraint

no code implementations3 Nov 2017 Sara Khoshsokhan, Roozbeh Rajabi, Hadi Zayyani

Simulation results based on defined performance metrics, illustrate advantage of the proposed algorithm in spectral unmixing of hyperspectral data compared with other methods.

Distributed Optimization

Multilayer Structured NMF for Spectral Unmixing of Hyperspectral Images

no code implementations4 Jun 2015 Roozbeh Rajabi, Hassan Ghassemian

Sparseness constraint on both spectral signatures and abundance fractions matrices are used in this paper.

Sparsity Constrained Graph Regularized NMF for Spectral Unmixing of Hyperspectral Data

no code implementations3 Nov 2014 Roozbeh Rajabi, Hassan Ghassemian

The presence percentages of endmembers in mixed pixels are called abundance fractions.

Spectral Unmixing of Hyperspectral Imagery using Multilayer NMF

1 code implementation12 Aug 2014 Roozbeh Rajabi, Hassan Ghassemian

In this letter we proposed using multilayer NMF (MLNMF) for the purpose of hyperspectral unmixing.

Hyperspectral Unmixing

Hyperspectral Data Unmixing Using GNMF Method and Sparseness Constraint

no code implementations29 Jun 2013 Roozbeh Rajabi, Hassan Ghassemian

In this paper we have used graph regularized (GNMF) method with sparseness constraint to unmix hyperspectral data.

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