Jafari Navimipour, Nima
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Jafari Navimipour,Nima
JAFARI NAVIMIPOUR, Nima
N. Jafari Navimipour
Jafari Navimipour, Nima
Jafari Navimipour,N.
J.,Nima
JAFARI NAVIMIPOUR, NIMA
Jafari Navimipour, N.
Nima Jafari Navimipour
Nima JAFARI NAVIMIPOUR
Jafari Navimipour, NIMA
Jafari Navimipour N.
NIMA JAFARI NAVIMIPOUR
J., Nima
Nima, Jafari Navimipour
Navimipour, Nima Jafari
Navimipour, N.J.
Navimpour, Nima Jafari
Navımıpour, Nıma Jafarı
Jafari Navimipour, Nima Jafari
JAFARI NAVIMIPOUR, Nima
N. Jafari Navimipour
Jafari Navimipour, Nima
Jafari Navimipour,N.
J.,Nima
JAFARI NAVIMIPOUR, NIMA
Jafari Navimipour, N.
Nima Jafari Navimipour
Nima JAFARI NAVIMIPOUR
Jafari Navimipour, NIMA
Jafari Navimipour N.
NIMA JAFARI NAVIMIPOUR
J., Nima
Nima, Jafari Navimipour
Navimipour, Nima Jafari
Navimipour, N.J.
Navimpour, Nima Jafari
Navımıpour, Nıma Jafarı
Jafari Navimipour, Nima Jafari
Job Title
Doç. Dr.
Email Address
Main Affiliation
Computer Engineering
Computer Engineering
05. Faculty of Engineering and Natural Sciences
01. Kadir Has University
Computer Engineering
05. Faculty of Engineering and Natural Sciences
01. Kadir Has University
Status
Current Staff
Website
ORCID ID
Scopus Author ID
Turkish CoHE Profile ID
Google Scholar ID
WoS Researcher ID
Sustainable Development Goals
11
SUSTAINABLE CITIES AND COMMUNITIES
9
Research Products
17
PARTNERSHIPS FOR THE GOALS
0
Research Products
14
LIFE BELOW WATER
2
Research Products
8
DECENT WORK AND ECONOMIC GROWTH
0
Research Products
15
LIFE ON LAND
0
Research Products
1
NO POVERTY
0
Research Products
7
AFFORDABLE AND CLEAN ENERGY
10
Research Products
6
CLEAN WATER AND SANITATION
0
Research Products
12
RESPONSIBLE CONSUMPTION AND PRODUCTION
5
Research Products
16
PEACE, JUSTICE AND STRONG INSTITUTIONS
0
Research Products
9
INDUSTRY, INNOVATION AND INFRASTRUCTURE
18
Research Products
3
GOOD HEALTH AND WELL-BEING
12
Research Products
2
ZERO HUNGER
5
Research Products
4
QUALITY EDUCATION
0
Research Products
10
REDUCED INEQUALITIES
1
Research Products
13
CLIMATE ACTION
1
Research Products
5
GENDER EQUALITY
0
Research Products
This researcher does not have a Scopus ID.
This researcher does not have a WoS ID.
Scholarly Output
115
Articles
102
Views / Downloads
1346/14580
Supervised MSc Theses
3
Supervised PhD Theses
1
WoS Citation Count
3293
Scopus Citation Count
4123
WoS h-index
32
Scopus h-index
34
Patents
0
Projects
0
WoS Citations per Publication
28.63
Scopus Citations per Publication
35.85
Open Access Source
30
Supervised Theses
4
| Journal | Count |
|---|---|
| Nano Communication Networks | 6 |
| Sustainable Computing-Informatics & Systems | 5 |
| Cluster Computing | 5 |
| Multimedia Tools and Applications | 4 |
| International Journal of Communication Systems | 4 |
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115 results
Scholarly Output Search Results
Now showing 1 - 10 of 115
Article Citation - WoS: 89Citation - Scopus: 120A new lung cancer detection method based on the chest CT images using Federated Learning and blockchain systems(Elsevier, 2023) Heidari, Arash; Javaheri, Danial; Toumaj, Shiva; Navimipour, Nima Jafari; Rezaei, Mahsa; Unal, MehmetWith an estimated five million fatal cases each year, lung cancer is one of the significant causes of death worldwide. Lung diseases can be diagnosed with a Computed Tomography (CT) scan. The scarcity and trustworthiness of human eyes is the fundamental issue in diagnosing lung cancer patients. The main goal of this study is to detect malignant lung nodules in a CT scan of the lungs and categorize lung cancer according to severity. In this work, cutting-edge Deep Learning (DL) algorithms were used to detect the location of cancerous nodules. Also, the real-life issue is sharing data with hospitals around the world while bearing in mind the organizations' privacy issues. Besides, the main problems for training a global DL model are creating a collaborative model and maintaining privacy. This study presented an approach that takes a modest amount of data from multiple hospitals and uses blockchain-based Federated Learning (FL) to train a global DL model. The data were authenticated using blockchain technology, and FL trained the model internationally while maintaining the organization's anonymity. First, we presented a data normalization approach that addresses the variability of data obtained from various institutions using various CT scanners. Furthermore, using a CapsNets method, we classified lung cancer patients in local mode. Finally, we devised a way to train a global model cooperatively utilizing blockchain technology and FL while maintaining anonymity. We also gathered data from real-life lung cancer patients for testing purposes. The suggested method was trained and tested on the Cancer Imaging Archive (CIA) dataset, Kaggle Data Science Bowl (KDSB), LUNA 16, and the local dataset. Finally, we performed extensive experiments with Python and its well-known libraries, such as Scikit-Learn and TensorFlow, to evaluate the suggested method. The findings showed that the method effectively detects lung cancer patients. The technique delivered 99.69 % accuracy with the smallest possible categorization error.Doctoral Thesis Kuantum Noktalarına Dayalı Enerji Verimli Elektronik Cihazlar için Nano Ölçekli Aritmetik ve Mantık Birimi Tasarımı(2025) Zohaib, Muhammad; Navimipour, Nima Jafari; Aydemir, Mehmet TimurElektronik, modern teknolojilerin temel bileşenidir ve transistörler, diyotlar, kapasitörler ve sensörler gibi basit bileşenlerin yardımıyla elektriksel bilginin iletilmesini sağlar. Akımı kontrol ederek, temel sinyal işleme fonksiyonları olan amplifikasyon, anahtarlama ve modülasyon gibi önemli işlevleri yerine getirirler. Mevcut yüksek performanslı sinyal işleme uygulamaları, bu sistemleri daha hızlı, daha küçük ve daha az enerji tüketen hale getiren malzeme bilimi ve nanoteknolojideki güncel gelişmeler sayesinde mümkün olmaktadır. Sinyal işleme, modern yaşamın birçok unsurunun telekomünikasyon, eğitim, sağlık, endüstri ve güvenlik gibi gelişiminde önemli bir etki yaratmıştır. Yarı iletken endüstrisi, sinyal işleme inovasyonunun başlıca itici gücü olup, küresel talebe yanıt olarak giderek daha sofistike elektronik cihazlar ve devreler üretmektedir. Ayrıca, merkezi işlem birimi (CPU), bilgisayarların ve tüm elektronik cihazların ve sinyal işlemenin 'beyni' olarak tanımlanır. CPU, bellek, çarpan, toplayıcı gibi hayati bileşenleri içeren kritik bir elektronik aygıttır. CPU'nun temel bileşenlerinden biri de aritmetik ve mantık birimidir (ALU); toplama, çarpma ve çıkarma gibi tüm CPU işlemleri içinde aritmetik ve mantıksal işlemleri gerçekleştirmektedir. Ancak ALU devrelerinde gecikme, kapladığı alan ve enerji tüketimi önemli parametrelerdir. Mevcut ALU tasarımları yüksek gecikme, fazla alan kullanımı ve yüksek enerji tüketimi gibi sorunlarla karşılaştığı için, yeni teknolojiye dayalı elektronik devrelerin uygulanması; mikrodenetleyiciler, mikroişlemciler ve baskılı cihazlar gibi tüm sinyal işleme aygıtlarının performansını yüksek hız ve düşük alan kullanımı ile önemli ölçüde artırabilir. Kuantum Nokta Hücreli Otomatlar (QCA), bu eksiklikleri gidermek için tüm elektronik devreler ve sinyal işleme uygulamalarında etkili bir teknolojidir. Bu teknoloji, CMOS ve VLSI gibi yerleşik teknolojilere alternatif olarak araştırılmakta olup, ultra düşük güç tüketimi, yüksek cihaz yoğunluğu, THz seviyesinde hızlı çalışma hızı ve azaltılmış devre karmaşıklığı gibi avantajlara sahiptir. Bu araştırma, gelişmiş QCA nanoteknolojisini uygulayarak mikrodenetleyiciler gibi elektronik cihazları geliştiren yenilikçi bir ALU tasarımı önermektedir. Temel amaç, QCA nanoteknolojisinin potansiyelinden tam anlamıyla yararlanan özgün bir ALU mimarisi sunmaktır. Yeni ve verimli bir yaklaşımla, temel mantık kapıları döndürülmemiş tek hücreye dayalı eş düzlemli bir düzenle ustalıkla kullanılmaktadır. Ayrıca bu çalışma, kuantum nokta hücreli otomata teknolojisinde geliştirilmiş 1-bit ve 2-bit aritmetik ve mantık birimi sunmaktadır. Önerilen tasarım; mantık işlemleri, aritmetik işlemler, tam toplayıcı (FA) tasarımı ve çoklayıcıları içermektedir. Tüm önerilen tasarımlar güçlü simülasyon aracı QCADesigner kullanılarak değerlendirilmiş ve doğrulanmıştır. Simülasyon sonuçları, önerilen ALU'nun hücre sayısı ve toplam kaplanan alan açısından en iyi tek katmanlı ve çok katmanlı önceki tasarımlara kıyasla sırasıyla %42.48 ve %64.28 oranında iyileştirme sağladığını göstermektedir.Article Citation - WoS: 19Citation - Scopus: 20A Nano-Scale Design of Arithmetic and Logic Unit for Energy-Efficient Signal Processing Devices Based on a Quantum-Based Technology(Springer, 2025) Zohaib, Muhammad; Navimipour, Nima Jafari; Aydemir, Mehmet Timur; Ahmadpour, Seyed-SajadSignal processing had a significant impact on the development of many elements of modern life, including telecommunications, education, healthcare, industry, and security. The semiconductor industry is the primary driver of signal processing innovation, producing ever-more sophisticated electronic devices and circuits in response to global demand. In addition, the central processing unit (CPU) is described as the "brain" of a computer or all electronic devices and signal processing. CPU is a critical electronic device that includes vital components such as memory, multiplier, adder, etc. Also, one of the essential components of the CPU is the arithmetic and logic unit (ALU), which executes the arithmetic and logical operations within all types of CPU operations, such as addition, multiplication, and subtraction. However, delay, occupied areas, and energy consumption are essential parameters in ALU circuits. Since the recent ALU designs experienced problems like high delay, high occupied area, and high energy consumption, implementing electronic circuits based on new technology can significantly boost the performance of entire signal processing devices, including microcontrollers, microprocessors, and printed devices, with high-speed and low occupied space. Quantum dot cellular automata (QCA) is an effective technology for implementing all electronic circuits and signal processing applications to solve these shortcomings. It is a transistor-less nanotechnology being explored as a successor to established technologies like CMOS and VLSI due to its ultra-low power dissipation, high device density, fast operating speed in THz, and reduced circuit complexity. This research proposes a ground-breaking ALU that upgrades electrical devices such as microcontrollers by applying cutting-edge QCA nanotechnology. The primary goal is to offer a novel ALU architecture that fully utilizes the potential of QCA nanotechnology. Using a new and efficient approach, the fundamental gates are skillfully utilized with a coplanar layout based on a single cell not rotated. Furthermore, this work presents an enhanced 1-bit and 2-bit arithmetic logic unit in quantum dot cellular automata. The recommended design includes logic, arithmetic operations, full adder (FA) design, and multiplexers. Using the powerful simulation tools QCADesigner, all proposed designs are evaluated and verified. The simulation outcomes indicates that the suggested ALU has 42.48 and 64.28% improvements concerning cell count and total occupied area in comparison to the best earlier single-layer and multi-layer designs.Article Citation - WoS: 20Citation - Scopus: 16A New a Flow-Based Approach for Enhancing Botnet Detection Using Convolutional Neural Network and Long Short-Term Memory(Springer London Ltd, 2025) Asadi, Mehdi; Heidari, Arash; Navimipour, Nima Jafari; Jafari Navimipour, NimaDespite the growing research and development of botnet detection tools, an ever-increasing spread of botnets and their victims is being witnessed. Due to the frequent adaptation of botnets to evolving responses offered by host-based and network-based detection mechanisms, traditional methods are found to lack adequate defense against botnet threats. In this regard, the suggestion is made to employ flow-based detection methods and conduct behavioral analysis of network traffic. To enhance the performance of these approaches, this paper proposes utilizing a hybrid deep learning method that combines convolutional neural network (CNN) and long short-term memory (LSTM) methods. CNN efficiently extracts spatial features from network traffic, such as patterns in flow characteristics, while LSTM captures temporal dependencies critical to detecting sequential patterns in botnet behaviors. Experimental results reveal the effectiveness of the proposed CNN-LSTM method in classifying botnet traffic. In comparison with the results obtained by the leading method on the identical dataset, the proposed approach showcased noteworthy enhancements, including a 0.61% increase in precision, a 0.03% augmentation in accuracy, a 0.42% enhancement in the recall, a 0.51% improvement in the F1-score, and a 0.10% reduction in the false-positive rate. Moreover, the utilization of the CNN-LSTM framework exhibited robust overall performance and notable expeditiousness in the realm of botnet traffic identification. Additionally, we conducted an evaluation concerning the impact of three widely recognized adversarial attacks on the Information Security Centre of Excellence dataset and the Information Security and Object Technology dataset. The findings underscored the proposed method's propensity for delivering a promising performance in the face of these adversarial challenges.Article Citation - WoS: 4Citation - Scopus: 8Quantum-based serial-parallel multiplier circuit using an efficient nano-scale serial adder(Soc Microelectronics, Electron Components Materials-midem, 2024) Wu, Hongyu; Jiang, Shuai; Seyedi, Saeid; Navimipour, Nima JafariQuantum dot cellular automata (QCA) is one of the newest nanotechnologies. The conventional complementary metal oxide semiconductor (CMOS) technology was superbly replaced by QCA technology. This method uses logic states to identify the positions of individual electrons rather than defining voltage levels. A wide range of optimization factors, including reduced power consumption, quick transitions, and an extraordinarily dense structure, are covered by QCA technology. On the other hand, the serialparallel multiplier (SPM) circuit is an important circuit by itself, and it is also very important in the design of larger circuits. This paper defines an optimized circuit of SPM circuit using QCA. It can integrate serial and parallel processing benefits altogether to increase efficiency and decrease computation time. Thus, all these mentioned advantages make this multiplier framework a crucial element in numerous applications, including complex arithmetic computations and signal processing. This research presents a new QCAbased SPM circuit to optimize the multiplier circuit's performance and enhance the overall design. The proposed framework is an amalgamation of highly performance architecture with efficient path planning. Other than that, the proposed QCA-based SPM circuit is based on the majority gate and 1-bit serial adder (BSA). BCA circuit has 34 cells and a 0.04 mu m2 area and uses 0.5 clock cycles. The outcomes showed the suggested QCA-based SPM circuit occupies a mere 0.28 mu m 2 area, requires 222 QCA cells, and demonstrates a latency of 1.25 clock cycles. This work contributes to the existing literature on QCA technology, also emphasizing its capabilities in advancing VLSI circuit layout via optimized performance.Article Citation - WoS: 1Citation - Scopus: 1Scalable and Low-Power Reversible Logic for Future Devices: QCA and IBM-Based Gate Realization(Elsevier, 2025) Ahmadpour, Seyed-Sajad; Navimipour, Nima Jafari; Zohaib, Muhammad; Misra, Neeraj Kumar; Pour, Mahsa Rastegar; Rasmi, Hadi; Das, Jadav Chandra; Chandra Das, JadavOne such revolutionary approach to changing the nano-electronic landscape is integrating reversible logic with quantum dot technology that will replace the conventional complementary metal-oxide semiconductors (CMOS) circuits for ultra-high speed, low density, and energy-efficient digital designs. The implementation of the reversible structure under the most inflexible conditions, as executed by quantum laws, is a highly challenging task. Furthermore, the enormous occupying areas seriously compromise the accuracy of the output in quantum dot circuits. Because of this challenge, quantum circuits can be employed as fundamental building blocks in highperformance digital systems since their implementation has a key impact on overall system performance. This study discusses a paradigm shift in nanoscale digital design by using a 4 x 4 reversible gate that redefines the basis of efficiency and precision. This reversible gate is elaborately used in a reversible full-adder circuit, fully symbolizing the core of minimum area, ultra-low energy consumption, and perfect output accuracy. The proposed reversible circuits have been fully realized using quantum-dot cellular automata technology (QCA), simulated, and verified by the highly reliable tool such as Qiskit IBM and QCADesigner 2.0.3. Furthermore, simulations results demonstrated the superiority of the QCA-based proposed adder, which reduced occupied area by 7.14 %, and cell count by 11.57 %, respectively. This work resolves some problems and opens new boundaries toward the future of digital circuits by addressing the main challenges of stability and pushing the boundaries of reversible logic design.Book Part Citation - Scopus: 2Machine/Deep Learning Techniques for Multimedia Security(inst Engineering Tech-iet, 2023) Heidari, Arash; Navimipour, Nima Jafari; Azad, Poupak; Heidar, ArashMultimedia security based on Machine Learning (ML)/ Deep Learning (DL) is a field of study that focuses on using ML/DL techniques to protect multimedia data such as images, videos, and audio from unauthorized access, manipulation, or theft. Developing and implementing algorithms and systems that use ML/DL techniques to detect and prevent security breaches in multimedia data is the main subject of this field. These systems use techniques like watermarking, encryption, and digital signature verification to protect multimedia data. The advantages of using ML/DL in multimedia security include improved accuracy, scalability, and automation. ML/DL algorithms can improve the accuracy of detecting security threats and help identify multimedia data vulnerabilities. Additionally, ML models can be scaled up to handle large amounts of multimedia data, making them helpful in protecting big datasets. Finally, ML/DL algorithms can automate the process of multimedia security, making it easier and more efficient to protect multimedia data. The disadvantages of using ML/DL in multimedia security include data availability, complexity, and black box models. ML and DL algorithms require large amounts of data to train the models, which can sometimes be challenging. Developing and implementing ML algorithms can also be complex, requiring specialized skills and knowledge. Finally, ML/DL models are often black box models, which means it can be difficult to understand how they make their decisions. This can be a challenge when explaining the decisions to stakeholders or auditors. Overall, multimedia security based on ML/DL is a promising area of research with many potential benefits. However, it also presents challenges that must be addressed to ensure the security and privacy of multimedia data.Article Citation - WoS: 11Citation - Scopus: 13A Nano-Scale Design of Vedic Multiplier for Electrocardiogram Signal Processing Based on a Quantum Technology(Aip Publishing, 2025) Wang, Yuyao; Darbandi, Mehdi; Ahmadpour, Seyed-Sajad; Navimipour, Nima Jafari; Navin, Ahmad Habibizad; Heidari, Arash; Anbar, MohammadAn electrocardiogram (ECG) measures the electric signals from the heartbeat to diagnose various heart issues; nevertheless, it is susceptible to noise. ECG signal noise must be removed because it significantly affects ECG signal characteristics. In addition, speed and occupied area play a fundamental role in ECG structures. The Vedic multiplier is an essential part of signal processing and is necessary for various applications, such as ECG, clusters, and finite impulse response filter architectures. All ECGs have a Vedic multiplier circuit unit that is necessary for signal processing. The Vedic multiplier circuit always performs multiplication and accumulation steps to execute continuous and complex operations in signal processing programs. Conversely, in the Vedic multiplier framework, the circuit speed and occupied area are the main limitations. Fixing these significant defects can drastically improve the performance of this crucial circuit. The use of quantum technologies is one of the most popular solutions to overcome all previous shortcomings, such as the high occupied area and speed. In other words, a unique quantum technology like quantum dot cellular automata (QCA) can easily overcome all previous shortcomings. Thus, based on quantum technology, this paper proposes a multiplier for ECG using carry skip adder, half-adder, and XOR circuits. All suggested frameworks utilized a single-layer design without rotated cells to increase their operability in complex architectures. All designs have been proposed with a coplanar configuration in view, having an impact on the circuits' durability and stability. All proposed architectures have been designed and validated with the tool QCADesigner 2.0.3. All designed circuits showed a simple structure with minimum quantum cells, minimum area, and minimum delay with respect to state-of-the-art structures.Article Citation - WoS: 1A Hybrid Deep Learning Framework Using Synthetic Oversampling, Autoencoder, Convolutional Neural Networks, and an Attention Mechanism for Credit Card Fraud Detection(Springer Nature, 2025) Kiaei, Ali Akbar; Navimipour, Nima Jafari; Pour, Narges Mohammadali; Heidari, Arash; Zavvar, Mohammad; Jafari, MojtabaCredit card fraud is still a big problem for banks and other financial organizations throughout the globe. It hurts consumer confidence and financial stability. Despite significant progress in fraud detection, existing algorithms struggle with highly imbalanced datasets dominated by legitimate transactions. This article addresses this issue by proposing by suggesting a new way to solve it that combines the Synthetic Minority Oversampling Method (SMOTE), autoencoder, Convolutional Neural Networks (CNNs), and attention mechanism into one framework (SMOTE-AE-CNN-Att). The technique starts by utilizing SMOTE to balance the dataset, then uses AE-CNN-Att models to extract features, and then uses classic Machine Learning (ML) methods to classify the data. The suggested method has been shown to be very accurate (> 99.9%) in finding faket transactions while keeping important performance metrics like precision (up to 90.07%), recall (up to 91.13%), and F1-score (up to 90.60%). When compared to other techniques, the SMOTE-AE-CNN-Att model does a better job of finding a good balance between accuracy and recall, which is very important for finding fraud. This research shows how Deep Learning (DL) methods might make it much easier to detect fraud in credit card transactions. This would lead to better security and consumer protection in financial transactions.Review Citation - WoS: 25Citation - Scopus: 24The History of Computing in Iran (persia)-Since the Achaemenid Empire(Mdpi, 2022) Heidari, Arash; Navimipour, Nima Jafari; Unal, Mehmet; Jafari Navimipour, NimaPersia was the early name for the territory that is currently recognized as Iran. Iran's proud history starts with the Achaemenid Empire, which began in the 6th century BCE (c. 550). The Iranians provided numerous innovative ideas in breakthroughs and technologies that are often taken for granted today or whose origins are mostly unknown from the Achaemenid Empire's early days. To recognize the history of computing systems in Iran, we must pay attention to everything that can perform computing. Because of Iran's historical position in the ancient ages, studying the history of computing in this country is an exciting subject. The history of computing in Iran started very far from the digital systems of the 20th millennium. The Achaemenid Empire can be mentioned as the first recorded sign of using computing systems in Persia. The history of computing in Iran started with the invention of mathematical theories and methods for performing simple calculations. This paper also attempts to shed light on Persia's computing heritage elements, dating back to 550 BC. We look at both the ancient and current periods of computing. In the ancient section, we will go through the history of computing in the Achaemenid Empire, followed by a description of the tools used for calculations. Additionally, the transition to the Internet era, the formation of a computer-related educational system, the evolution of data networks, the growth of the software and hardware industry, cloud computing, and the Internet of Things (IoT) are all discussed in the modern section. We highlighted the findings in each period that involve vital sparks of computing evolution, such as the gradual growth of computing in Persia from its early stages to the present. The findings indicate that the development of computing and related technologies has been rapidly accelerating recently.
