Original Research Paper Artificial Intelligence
Clustering of Triangular Fuzzy Data based on Heuristic Methods

N. Ghanbari; S. H. Zahiri; H. Shahraki

Volume 12, Issue 1 , January 2024, Pages 1-14

https://doi.org/10.22061/jecei.2023.9641.645

Abstract
  Background and Objectives: In this paper, a new version of the particle swarm optimization (PSO) algorithm using a linear ranking function is proposed for clustering uncertain data. In the proposed Uncertain Particle Swarm Clustering method, called UPSC method, triangular fuzzy numbers (TFNs) are used ...  Read More

Review paper Cloud Computing
Service and Energy Management in Fog Computing: A Taxonomy Approaches and Future Directions

S. M. Hashemi; A. Sahafi; A. M. Rahmani; M. Bohlouli

Volume 12, Issue 1 , January 2024, Pages 15-38

https://doi.org/10.22061/jecei.2023.9482.624

Abstract
  Background and Objectives: Today, the increased number of Internet-connected smart devices require powerful computer processing servers such as cloud and fog and necessitate fulfilling requests and services more than ever before. The geographical distance of IoT devices to fog and cloud servers have ...  Read More

Original Research Paper Power Electronics
Application of Grey Wolf Optimization Algorithm with Aggregation Function on Designing Interleaved Boost Converter

S.H. Zahiri; S. M. Naji Esfahani; M. Delshad

Volume 12, Issue 1 , January 2024, Pages 39-56

https://doi.org/10.22061/jecei.2023.9355.610

Abstract
  Background and Objectives: The interleaved approach has a long history of use in power electronics, particularly for high-power systems. The voltage and current stress in these applications exceed the tolerance limit of a power element. The present paper introduces an improved version of an interleaved ...  Read More

Original Research Paper Artificial Intelligence
Predicting the Sentiment of Tweet Replies using Attentive Graph Convolutional Neural Networks

S. Nemati

Volume 12, Issue 1 , January 2024, Pages 57-68

https://doi.org/10.22061/jecei.2023.9611.644

Abstract
  Background and Objectives: Twitter is a microblogging platform for expressing assessments, opinions, and sentiments on different topics and events. While there have been several studies around sentiment analysis of tweets and their popularity in the form of the number of retweets, predicting the sentiment ...  Read More

Original Research Paper Electronics
Uncomplicated Dead-time Generation Designed for H-Bridge Drivers by Logic Gates Driving Linear Actuators

M. Karimi; D. Dideban

Volume 12, Issue 1 , January 2024, Pages 69-78

https://doi.org/10.22061/jecei.2023.9574.636

Abstract
  Background and Objectives: The H-bridge (HB) driver design with high efficiency is one of the most challenging issues in power systems that drive AC/DC loads. HB driver circuit based upon complementary MOSFET type used as a driving system of DC motor, power converters, and battery charger for electrical ...  Read More

Original Research Paper Machine Learning
Presenting a Model of Data Anonymization in Big Data in the Context of In-Memory Processing Framework

E. Shamsinejad; T. Banirostam; M. M. Pedram; A. M. Rahmani

Volume 12, Issue 1 , January 2024, Pages 79-98

https://doi.org/10.22061/jecei.2023.9737.651

Abstract
  Background and Objectives: Nowadays, with the rapid growth of social networks extracting valuable information from voluminous sources of social networks, alongside privacy protection and preventing the disclosure of unique data, is among the most challenging objects. In this paper, a model for maintaining ...  Read More

Review paper Cloud Computing
Comprehensive Review of Modern Computing Paradigms Architectures for Intelligent Agriculture

M. Farmani; S. Farnam; M. J. Khani; Z. Torabi; Z. Shirmohammadi

Volume 12, Issue 1 , January 2024, Pages 99-114

https://doi.org/10.22061/jecei.2023.9682.648

Abstract
  Background and Objectives: With the increase of population in the world along with the decrease of natural resources, agricultural land and the increase of unpredictable environmental conditions, it causes concerns in the field of food supply, which is one of the serious concerns for all countries of ...  Read More

Review paper Artificial Intelligence
Design, Analysis, and Implementation of a New Online Object Tracking Method Based on Sketch Kernel Correlation Filter (SHKCF)

M. Yousefzadeh; A. Golmakani; G. Sarbishaei

Volume 12, Issue 1 , January 2024, Pages 115-132

https://doi.org/10.22061/jecei.2023.10126.680

Abstract
  Background and Objectives: To design an efficient tracker in a crowded environment based on artificial intelligence and image processing, there are several challenges such as the occlusion, fast motion, in-plane rotation, variations in target illumination and Other challenges of online tracking are the ...  Read More

Original Research Paper Digital Signal Processing
The New Family of Adaptive Filter Algorithms for Block-Sparse System Identification

E. Heydari; M. Shams Esfand Abadi; S.M. Khademiyan

Volume 12, Issue 1 , January 2024, Pages 133-146

https://doi.org/10.22061/jecei.2023.10062.675

Abstract
  Background and Objectives: In order to improve the performance of normalized subband adaptive filter algorithm (NSAF) for identifying the block-sparse (BS) systems, this paper introduces the novel adaptive algorithm which is called BSNSAF. In the following, an improved multiband structured subband adaptive ...  Read More

Original Research Paper Artificial Intelligence
Multi-Task Learning Using Uncertainty for Realtime Multi-Person Pose Estimation

Z. Ghasemi-Naraghi; A. Nickabadi; R. Safabakhsh

Volume 12, Issue 1 , January 2024, Pages 147-162

https://doi.org/10.22061/jecei.2023.9848.657

Abstract
  Background and Obejctives: Multi-task learning is a widespread mechanism to improve the learning of multiple objectives with a shared representation in one deep neural network. In multi-task learning, it is critical to determine how to combine the tasks loss functions. The straightforward way is to optimize ...  Read More

Original Research Paper Computer Vision
Text Detection and Recognition for Robot Localization

Z. Raisi; J. Zelek

Volume 12, Issue 1 , January 2024, Pages 163-174

https://doi.org/10.22061/jecei.2023.9857.658

Abstract
  Background and Objectives: Signage is everywhere, and a robot should be able to take advantage of signs to help it localize (including Visual Place Recognition (VPR)) and map. Robust text detection & recognition in the wild is challenging due to pose, irregular text instances, illumination variations, ...  Read More

Original Research Paper Analogue Integrated Circuits
A Merged LNA-Mixer with Wide Variable Conversion Gain and Low Noise Figure for WLAN Direct-Conversion Receivers

A. Bijari; M. A. Mallaki

Volume 12, Issue 1 , January 2024, Pages 175-186

https://doi.org/10.22061/jecei.2023.10124.679

Abstract
  Background and Objectives: In wireless communications, receivers play an essential role. Among receiver architectures, the direct-conversion receiver (DCR) architecture has been selected due to its high level of integration and low cost. However, it suffers from DC offset due to self-mixing, I/Q imbalance, ...  Read More

Review paper Distributed systems
A Comprehensive Review on Blockchain Scalability

A. Matani; A. Sahafi; A. Broumandnia

Volume 12, Issue 1 , January 2024, Pages 187-216

https://doi.org/10.22061/jecei.2023.9975.670

Abstract
  Background and Objectives: Blockchain technology as a distributed and tamper-proof data ledger is attracting more and more attention from various fields around the world. Due to the continuously growing of the blockchain in both transaction data and the number of nodes joining the network, scalability ...  Read More

Original Research Paper Artificial Intelligence
Optimum Spectral Indices for Water Bodies Recognition Based on Genetic Algorithm and Sentinel-2 Satellite Images

H. Karim Tabbahfar; F. Tabib Mahmoudi

Volume 12, Issue 1 , January 2024, Pages 217-226

https://doi.org/10.22061/jecei.2023.10118.678

Abstract
  Background and Objectives: Considering the drought and global warming, it is very important to monitor changes in water bodies for surface water management and preserve water resources in the natural ecosystem. For this purpose, using the appropriate spectral indices has high capabilities to distinguish ...  Read More

Original Research Paper Antenna Design
A New Approach to Synthesis of a Quasi Non-Uniform Leaky Wave Antenna

A. Kiani; F. Geran; S. M. Hashemi

Volume 12, Issue 1 , January 2024, Pages 227-234

https://doi.org/10.22061/jecei.2023.9919.662

Abstract
  Background and Objectives: In this paper, a closed-form mathematical formula has been presented using of the proposed periodic structure E-field distribution, that helps designers to calculate the width of the slots in Quasi Non-Uniform Leaky Wave Antenna (QNULWA).Methods: This method is based on two ...  Read More

Original Research Paper Electronics
A New High-Speed Multi-Layer Three-Bits Counter Design in Quantum-Dot Cellular Automata Technology

G. Asadi Ghiasvand; M. Zare; M. Mahdavi

Volume 12, Issue 1 , January 2024, Pages 235-246

https://doi.org/10.22061/jecei.2023.9955.667

Abstract
  Background and Objectives: Quantum-dot Cellular Automata technology is a new method for digital circuits and systems designs. This method can be attractive for researchers due to its special features such as power consumption, high calculation speed and small dimensions. Methods: This paper tries to ...  Read More

Original Research Paper Data Science
Motif-based Community Detection: a Probabilistic Model based on Repeating Patterns

H. Hajibabaei; V. Seydi; A. Koochari

Volume 12, Issue 1 , January 2024, Pages 247-258

https://doi.org/10.22061/jecei.2023.9931.663

Abstract
  Background and Objectives: The detection of community in networks is an important tool for revealing hidden data in network analysis. One of the signs that the community exists in the network is the neighborhood density between nodes. Also, the existence of a concept called a motif indicates that a community ...  Read More

Original Research Paper Image Processing
Applying Partial Differential Equations on Cubic Uniform Local Binary Pattern to Reveal Micro-Changes

V. Esmaeili; M. Mohassel Feghhi; S. O. Shahdi

Volume 12, Issue 1 , January 2024, Pages 259-270

https://doi.org/10.22061/jecei.2023.9600.639

Abstract
  Background and Objectives: The world we live in everyday, accompany with enormous numbers of minute variations which affect us and our surroundings in several aspects. These variations, so called micro-changes, are low in intensity and brief in duration which makes them almost invisible to naked eyes. ...  Read More

Original Research Paper Power Electronics
Estimation of Wheel-Rail Adhesion Force Using Traction System Behavior

M. Moradi; R. Havangi

Volume 12, Issue 1 , January 2024, Pages 271-282

https://doi.org/10.22061/jecei.2023.9935.664

Abstract
  Background and Objectives:‎ Traction system and adhesion between wheel and rail are fundamental aspects in rail transportation. Depending on the vehicle's running conditions, different levels of adhesion are needed. Low adhesion between wheel and rail can be caused by leaves on the line or other ...  Read More

Original Research Paper Video Processing
An Efficient Region-of-Interest (ROI) based Scalable Framework for Free Viewpoint Video Application

H. Roodaki

Volume 12, Issue 1 , January 2024, Pages 283-293

https://doi.org/10.22061/jecei.2023.7934.455

Abstract
  Background and Objectives: From the multiview recorded video, free viewpoint video provides flexible viewpoint navigation. Thus, a lot of views need to be sent to the receivers in an encoded format. The scalable nature of the coded bitstream is one method of lowering the volume of data. However, adhering ...  Read More