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Neural Architecture Search for Biomedical Image Classification: A Comparative Study Across Data Modalities
No full textDeep neural networks have significantly advanced medical image classification across various modalities
and tasks. However, manually designing these networks is often time-consuming and suboptimal. Neural
Architecture Search (NAS) automates this process, potentially finding more efficient and effective models.
This study provides a comprehensive comparative analysis of our two NAS methods, PBC-NAS and BioNAS,
across multiple biomedical image classification tasks using the MedMNIST dataset. Our experiments evaluate
these methods based on classification performance (Accuracy (ACC) and Area Under the Curve (AUC)) and
computational complexity (Floating Point Operation Counts). Results demonstrate that BioNAS models slightly
outperform PBC-NAS models in accuracy, with BioNAS-2 achieving the highest average accuracy of 0.848.
However, PBC-NAS models exhibit superior computational efficiency, with PBC-NAS-2 achieving the lowest
average FLOPs of 0.82 GB. Both methods outperform state-of-the-art architectures like ResNet-18 and ResNet-
50 and AutoML frameworks such as auto-sklearn, AutoKeras, and Google AutoML. Additionally, PBC-NAS and
BioNAS outperform other NAS studies in average ACC results (except MSTF-NAS), and show highly competitive
results in average AUC. We conduct extensive ablation studies to investigate the impact of architectural
parameters, the effectiveness of fine-tuning, search space efficiency, and the discriminative performance of
generated architectures. These studies reveal that larger filter sizes and specific numbers of stacks or modules
enhance performance. Fine-tuning existing architectures can achieve nearly optimal results without separating
NAS for each dataset. Furthermore, we analyze search space efficiency, uncovering patterns in frequently
selected operations and architectural choices. This study highlights the strengths and efficiencies of PBCNAS
and BioNAS, providing valuable insights and guidance for future research and practical applications in
biomedical image classification
The Financial Technology Revolution: Theory, Innovation, and Revenue Streams
No full textFinTech companies digitize financial products by leveraging data from existing offerings, reinterpreting financial products, and collaborating with banks, financial institutions, and stakeholders. This book examines the lifecycle of FinTech companies and discusses business models and pricing strategies. This book explores how FinTech is reshaping the finance industry by combining finance, technology, and regulation. It discusses, through case studies, payment services, payment card schemes, digital wallets, digital banks, challenger banks, neobanks, BNPL, SuperApps, neobrokers, EMI, RTO and A2A. By understanding these models and implementing effective strategies, FinTech companies can thrive in a rapidly evolving industry landscape
A Link in the Ottoman Journey of Nukhbat al-Fikar: Abû Bakr al-Qaysarî’s Tawzîh al-Tawdîh
No full textMuhtasar Hadis Usûlü telif ve tedris geleneğinde önemli bir yere sahip olan İbn
Hacer el-‘Askalânî’nin Nuhbetü’l-fiker adlı eseri ve onun şerhi Nüzhetü’n-nazar, Osmanlı
ilim dünyasında da kalıcı etkiler bırakmış, muhtasar şerh ve hâşiye literatürünün başlıca
kaynaklarından olmuştur. Bu eserlerin Osmanlı medrese müfredatında yer bulması ise,
özellikle Köprülüler döneminde Mısır ulemasıyla kurulan ilmî temasların etkisiyle, 17.
yüzyıldan itibaren gerçekleşmiştir. Böylece Nuhbe-Nüzhe metinleri, Osmanlı hadis usûlü
geleneğinde yeniden yorumlanan ve eğitim pratiğini şekillendiren temel kaynaklar hâline
gelmiştir. Bu makale, bu geleneğin az bilinen halkalarından Ebûbekir el-Kaysarî’nin Tavzîhu’t-
tavzîh adlı şerhini ele almaktadır. Hicrî 1136’da telif edilen eser, yalnızca yazma
nüshalarla günümüze ulaşmıştır. Nüsha farklılıkları, istinsah süreçleri ve eserin dolaşımı,
Osmanlı hadis usûlü literatürünün işleyişine dair önemli ipuçları sunmaktadır. İnceleme,
eserin hadis usûlü konularını açıklamaya yönelik kapsamlı yorumları, ayrıntılı râvi biyografileri,
tabaka tespitleri ve zengin kaynak repertuvarını ortaya koymaktadır. Ricâl,
coğrafya ve lügat kaynaklarına başvurması, klasik usûl tartışmalarını disiplinler arası bir
bakışla zenginleştirdiğini göstermektedir. Makale, Kaysarî’nin şerhini, daha çok bilinen
Ali el-Kârî’nin şerhiyle de karşılaştırmaktadır. Ali el-Kârî’nin eseri “hoca kitabı” görünümünde iken, Kaysarî’nin çalışması talebe odaklı ve didaktik bir nitelik taşımaktadır.
Böylece Tavzîhu’t-tavzîh, Osmanlı hadis usûlü literatürünün çeşitliliğini ve klasik metinlerin
farklı bağlamlarda yeniden üretimini yansıtan önemli bir örnek olarak değerlendirilmektedir.Ibn Hajar al-‘Asqalânî’s Nukhbat al-Fikar and its commentary Nuzhat al-Nazar
occupy a central place in the tradition of hadith methodology and left a lasting impact on the
Ottoman scholarly milieu, serving as one of the main pillars of the commentary and gloss
literature. Their integration into the Ottoman madrasa curriculum, however, became fully
established only from the seventeenth century onwards, particularly through scholarly
exchanges with Egyptian scholars during the Köprülü era. Consequently, the Nukhba-
Nuzha corpus emerged as a foundational component of Ottoman hadith methodology,
shaping both the interpretation and pedagogy of the discipline. This article examines
one of the lesser-known links in this chain: Abû Bakr al-Qaysarî’s Tawziḥ al-Tawzih.
Composed in 1136 AH, the work survives exclusively in manuscript form. Variations
among extant copies, the processes of transcription, and the circulation of the text provide
significant insights into the functioning of Ottoman hadith scholarship. The analysis
highlights the commentary’s comprehensive treatment of hadith methodology, including
detailed explanations of technical discussions, biographical notes on transmitters,
identification of transmitter layers (tabaqât), and an extensive use of source material.
Its frequent engagement with works on rijâl, geography, and lexicography demonstrates
a multidimensional approach that enriches classical debates with an interdisciplinary
perspective. Furthermore, the article situates Qaysarî’s work in comparison with the betterknown
commentary of ‘Alî al-Qârî. Whereas al-Qârî’s commentary appears primarily as
a “teacher’s manual,” Qaysarî’s Tawzîh al-Tawzîh is oriented toward students, offering a
more didactic and accessible exposition. This study underscores the diversity of Ottoman
hadith methodology and highlights how classical texts were continuously reinterpreted
and transmitted within new scholarly contexts
Biosensor Applications of Bacterial Cellulose in Therapeutic Technologies: a Comprehensive Review
No full textBacterial cellulose (BC), synthesized by
strains such as Acetobacter xylinum, has gained significant
attention as a highly versatile biomaterial for
the development of nano-biosensors, particularly in
therapeutic technologies. Unlike plant-derived cellulose,
BC is devoid of lignin and hemicellulose,
providing a pure nanofibrous structure with distinct properties, including high crystallinity, mechanical
strength, biocompatibility, and exceptional waterholding
capacity. These characteristics make BC
an ideal platform for biosensor integration, offering
enhanced sensitivity, selectivity, and real-time monitoring
capabilities—key advantages for biomedical
applications. BC-based biosensors present significant
improvements over traditional technologies, particularly
in early-stage disease detection and personalized
medicine. The nanofibrillar structure of BC provides
a large surface area for the immobilization of bio-recognition
elements, such as enzymes, antibodies, and
nucleic acids, facilitating superior signal transduction
and enabling the detection of biomarkers at lower
concentrations. This heightened sensitivity is crucial
for early diagnosis, where conventional methods
often fail to detect subtle biomolecular changes. Furthermore,
BC’s inherent biocompatibility makes it an
ideal material for the development of wearable biosensors
capable of continuous monitoring and delivering
patient-specific data. A prominent application
of BC-based biosensors is in wound healing, where
BC’s high water retention capacity supports an optimal
moist environment for accelerated healing. When
integrated with biosensing elements, BC wound
dressings can monitor critical biomarkers, such as pH
levels or the presence of specific pathogens, allowing
for timely intervention and improved patient outcomes.
BC-based biosensors have also been explored
for use in drug delivery systems, where biosensors
can detect specific biological cues to trigger the controlled release of therapeutic agents at targeted
sites, thus minimizing side effects and enhancing the
efficacy of treatments. In addition to its biomedical
applications, BC is a sustainable and environmentally
friendly material derived from renewable sources. Its
biodegradability and ease of functionalization further
enhance its potential for diverse medical applications.
As a bio-based material, BC contributes to reducing
the environmental impact of medical technologies
while offering high-performance solutions. In summary,
BC-based nano-biosensors represent a transformative
approach to therapeutic technologies, offering
enhanced performance in sensitivity, selectivity,
and real-time monitoring. As research advances, BC’s
integration into medical devices holds great promise
for the future of sustainable, patient-centered healthcare
solutions
Structural Evaluation of Masonry Walls with Double-sided CFRP Reinforcement Through Ddiagonal Compression Tests
No full textPossible damages in masonry structures due to aging, settlement, movement, or earthquake effects
can be repaired/reinforced with minimum intervention. In this study, the effect of CFRP
composites, which can be applied in this sense, on structural strengthening was investigated with
experiments performed on 3 different series. In the study, firstly, model brick wall specimens
were produced with bricks cut from standard bricks (19x9x5 cm) in miniature brick sizes
(9.5x4.5 × 2.5 cm) and these specimens exposed to loading and damaged. Thus, the characteristics
of the reference wall were determined. Following the initial damage, the cracks in the
specimens were repaired using epoxy. Subsequently, three different CFRP configurations -strip,
split strip, and fabric-were applied to both sides of the wall specimens, which were divided into
three groups. After reinforcement, the testing phase was initiated. To simulate possible horizontal
and vertical loads, a diagonal compressive force was applied to the specimens with the horizontal
joints at an 45◦ angle to the load axis. The strengths, deformations, and failure mechanisms of the
model masonry walls subjected to diagonal compressive loading were recorded, and the effect of
CFRP reinforcement on masonry walls under compressive and tensile loads was investigated using
experimental data. Compared to the reference walls, an increase in strength by 180–327 %,
displacement capacity by 229–359 %, and shear strength by 186–306 % was observed in the
CFRP-strengthened specimens
Yabancı Dil Olarak Türkçe Öğretiminde Padlet’in Yazma Becerisi ve Tutumuna Etkisi
No full textFor centuries, people have expressed and shared their cultures through
language. The desire to understand different cultures and languages has
driven societies to develop various approaches to foreign language education.
With technological advancements, Web 2.0 tools have become
integral to language learning. In teaching Turkish as a foreign language,
such tools are employed to enhance writing skills. One notable example is
Padlet, an online platform designed for collaborative writing. However, research
on how Padlet influences Turkish writing skillremains limited. This
study investigates the impact of Padlet on the writing skilland attitudes of
learners studying Turkish as a foreign language. Adopting a mixed-method
research design, the study involved 30 B2-level students divided into
experimental and control groups. Quantitative data were gathered using
pre-and post-tests on writing skilland a writing attitude scale, while qualitative
insights were obtained through a “Padlet Activity Evaluation Form.”
he findings revealed that Padlet positively influenced writing skillbut did
not lead to a significant difference between the two groups. Conversely,
the tool significantly improved writing attitudes, favoring the experimental
group. Additionally, sub-themes such as the platform’s ease of use and the
value of its instructive feedback were highlighted.Bireyler, yüzyıllardır dil aracılığıyla hem iletişim kurmuş hem de kültürlerini
aktarmıştır. Farklı toplumlar, diğer kültürleri ve dilleri öğrenme ihtiyacı
hissetmiş, bu da yabancı dil öğretiminde çeşitli yöntemlerin geliştirilmesine
yol açmıştır. Teknolojinin gelişmesiyle birlikte, Web 2.0 araçları
yabancı dil öğretiminde önemli bir rol oynamıştır. Yabancı dil olarak Türkçe
öğretiminde de yazma becerisinin geliştirilmesi için web araçları kullanılmaktadır.
Bunlardan biri olan Padlet, çevrim içi iş birliğine dayalı bir
yazı panosudur. Ancak, Padlet’in Türkçe yazma becerisine etkisini inceleyen
çalışmalar sınırlıdır. Bu araştırmada, Padlet kullanımının yabancı dil
olarak Türkçe öğrenenlerin yazma becerisi ve tutumlarına etkisi incelenmiştir.
Karma araştırma yöntemiyle yürütülen çalışmada, deney ve kontrol
grubu B2 seviyesinde 30 öğreniciyle oluşturulmuştur. Nicel veriler, yazma
becerisi ön ve son testleri ile yazma tutumu ölçeği kullanılarak analiz
edilmiş; nitel veriler ise “Padlet Etkinliğini Değerlendirme Formu”ile toplanmıştır.
Sonuçlar, Padlet’in yazma becerisine olumlu etki ettiğini ancak
gruplar arasında anlamlı bir fark yaratmadığını göstermiştir. Öte yandan,
Padlet’in yazma tutumuna olumlu etki ettiği ve deney grubu lehine anlamlı
bir fark oluşturduğu bulunmuştur. Araştırmada ayrıca, uygulamanın kolay
kullanımı ve öğretici geri bildirim alt temaları tespit edilen alt temalar arasındadır
The Mediating Role of Self-Construals in The Relationship Between Family Climate and Multidimensional Well-Being in University Students
No full textThis study employs a Structural Equation Model to examine the mediating role of self-construals in the relationship between university students’ family climate and well-being In line with the correlational model, the study’s sample consisted of 541 university students, of whom 371 (68.6%) were female and 170 (31.4%) were male. The average of age the participants included in the sample was found to be 21.19. The PERMA-Profiler, Autonomous-Relational Self in Family Scale, and Family Climate Scale were used to collect data. Both a Pearson’s Product-Moments Correlation and Structural Equation Model were used to analyze the study’s data and thereby test the study’s main hypotheses. The Structural Equation Model revealed that self-construals play a mediating role in the relationship between family climate and well-being. According to the model, individuals raised in families with a positive family climate were found to develop a self-construal (relational and autonomous-relational self) and this self-construals increased individuals’ well-being levels. These results emphasize the importance of considering family climate characteristics and self-construals when researching well-being
Examination of the views of preschool teachers working in special education and rehabilitation centers regarding educational and managerial processes
No full textBu araştırmada, özel eğitim ve rehabilitasyon merkezlerinde çalışan okul öncesi öğretmenlerinin eğitsel ve yönetsel süreçlere yönelik süreçlere ilişkin görüşlerinin incelenmesi amaçlanmıştır. Araştırmada nitel araştırma desenlerinden "Durum Çalışması" kullanılmıştır. Araştırmanın çalışma grubu, "Amaçlı Örnekleme Yöntemlerinden Kolay Ulaşılabilir Örnekleme Yöntemi" kullanılarak seçilen; 2024-2025 eğitim öğretim yılında 24 Şubat 2024 ile 25 Temmuz 2024 tarihleri arasında İstanbul ilinde Avrupa Yakasında yer alan Milli Eğitim Bakanlığına bağlı 12 farklı ilçede yer alan Özel Özel Eğitim ve Rehabilitasyon Merkezinde çalışmakta olan 28 okul öncesi öğretmeninden oluşmaktadır. Araştırmada, veri toplama aracı olarak "Demografik Form" ve uzman görüşü alınarak araştırmacı tarafından hazırlanan "Özel Eğitim ve Rehabilitasyon Merkezlerinde Çalışan Okul Öncesi Öğretmenlerinin Eğitsel ve Yönetsel Süreçlere İlişkin Görüşleri" adlı yarı yapılandırılmış görüşme formu kullanılmıştır. Elde edilen veriler, nitel veri analizi yöntemlerinden "İçerik Analizi" kullanılarak analiz edilmiştir. Araştırmanın sonucunda, okul öncesi öğretmenlerinin kendi alanları dışında olan özel eğitim alanında görev yaptıkları özel eğitim ve rehabilitasyon merkezlerinde özel gereksinimli çocuklara verdikleri eğitim sürecinde çeşitli problemlerle karşılaştıkları görülmüştür. Problemlerin büyük bir kısmının kurumun yeterli materyal sağlamaması, problem davranışlarla baş etmede ve sınıf yönetiminde zorlandıkları, okul öncesi öğretmenlerinin alanda yetkinlik gösterememesinden kaynaklı olarak eğitsel problem yaşadıkları sonuçlarına ulaşılmıştır. Okul öncesi öğretmenlerinin kendi alanları yerine özel eğitim alanını tercih etmelerinde en çok kendini bu alanda geliştirme isteği, maddi nedenler ve okul öncesi eğitimin zor olduğu düşüncesi ile özel eğitim alanını tercih ettikleri görülmüştür. Okul öncesi öğretmenlerinin büyük çoğunluğunda özel eğitim alanında çalışmanın özellikle özel gereksinimli çocukların kısa sürede gelişim gösterememesi nedeniyle mesleki açıdan yıpranma meydana getirdiği sonucuna ulaşılmıştır. Öğretmenlerin büyük bir çoğunluğunun özel eğitim alanında kendilerini geliştirmek için çeşitli sertifika eğitimlerine katılım gösterdiği sonucuna ulaşılmıştır. Öğretmenlerin çoğunluğunun meslekte uzun yıllardır çalışmasından kaynaklı olarak çocuklar hakkında yeterli bilgiye sahip oldukları, çocukları tanımak için aile görüşmeleri, çocuğun diğer öğretmenlerinden bilgi alma ve görüşme formu gibi yöntem ve teknikleri kullandıkları; çocukları değerlendirme için ise değerlendirme formundan yararlandıkları görülmüştür. Katılımcı öğretmenlerin, büyük bir çoğunluğunun çocuğun RAM raporundaki tanısı ile çocuğun eğitsel ihtiyaçlarının tutarsız olduğunu düşündükleri sonucuna ulaşılmıştır. Bunun nedeni olarak ise RAM'ın çocukların ihtiyaçlarını doğru tespit edememesi, RAM'da hızlı ve kısa süreli değerlendirme yapılıyor olması, çocuğun o anlık performansının değerlendirilmesi, detaylı değerlendirme yapılmaması ve çocuğun gelişim dönemi özelliklerine uygun olmaması gibi durumlardan kaynaklı olduğunu savundukları görülmektedir. Katılımcı öğretmenlerin, aile ile ilgili iletişim durumları incelendiğinde genellikle haftada iki kez (her seans sonu) iletişim kurdukları bu iletişimde iletişim yolu olarak genellikle yüz yüze görüşme yaptıkları fakat ailelerin %50'sinin çocuklarının eğitim sürecinde işbirliği yapmadığı ve sorumluluklarını yerine getirmedikleri ifadelerine ulaşılmıştır.In this study, it was aimed to examine the views of preschool teachers working in special education and rehabilitation centers regarding the educational and managerial processes. One of the qualitative research designs "Case Study" was used in the survey. The study group of the research consists of 28 preschool teachers working in Private Special Education and Rehabilitation Centers located in 12 different districts affiliated to the Ministry of National Education on the European Side of Istanbul between February 24, 2024 and July 25, 2024 in the 2024-2025 academic year, selected using the "Easily Accessible Sampling Method from Purposive Sampling Methods". In the study, "Demographic Form" and a semi-structured interview form titled "Opinions of Preschool Teachers Working in Special Education and Rehabilitation Centers on Educational and Administrative Processes" prepared by the researcher by taking expert opinion were used as data collection tools. The data obtained were analyzed using "Content Analysis", one of the qualitative data analysis methods. As a result of the survey, it was seen that preschool teachers encountered various problems during the education process they provided to children with special needs in special education and rehabilitation centers where they worked in the field of special education, which is outside their field. It was concluded that most of the problems were that the institution did not provide sufficient materials, they had difficulties in coping with problem behaviors and classroom management, and they had educational problems due to the inability of preschool teachers to show competence in the field. It was seen that preschool teachers preferred the field of special education instead of their own field mostly due to the desire to improve themselves in this field, financial reasons and the idea that preschool education is difficult. It was concluded that working in the field of special education in the majority of preschool teachers caused professional wear and tear, especially because children with special needs could not develop in a short time. It was concluded that the majority of the teachers participated in various certificate trainings to improve themselves in the field of special education. It was observed that the majority of the teachers had sufficient knowledge about children due to their long years of experience in the profession; they used methods and techniques such as family interviews, obtaining information from the child's other teachers and interview forms to get to know the children; and they used the evaluation form to evaluate the children. It was concluded that the majority of the participant teachers thought that the child's diagnosis in the CRC report was inconsistent with the child's educational needs. The reason for this is that the CRC (Counselling and Research Center) cannot accurately determine the needs of children, the CRC conducts quick and short-term evaluations, evaluates the child's current performance, does not conduct detailed evaluations, and is not suitable for the characteristics of the child's developmental period. When the communication status of the participant teachers with the family was examined, it was found that they usually communicated twice a week (at the end of each session), but 50% of the families did not cooperate in the education process of their children and did not fulfill their responsibilities
Investigation of the effect of sustainable environmental education program on preschool children's attitudes
No full textBu çalışmanın amacı, Sürdürülebilir Çevre Eğitim (SÇE) programının, çocukların çevresel tutumları üzerindeki etkisini incelemektir. Çalışma, çocukların çevreye duyarlı bireyler olarak yetişmesine katkıda bulunmayı hedeflemektedir. Araştırmada gömülü müdahale deseni tercih edilmiş; bu desende nitel ve nicel yöntemler birlikte, sıralı ve iç içe uygulanarak konunun derinlemesine incelenmesi amaçlanmıştır. Araştırmanın çalışma grubu, amaçlı örnekleme ile seçilen ve İstanbul Beylikdüzü'nde resmi bir okul öncesi kurumda eğitim gören, 60-72 aylık 38 çocuktan oluşmaktadır. Nitel veriler, araştırmacı tarafından geliştirilen "yarı yapılandırılmış görüşme formu" ile toplanmış ve betimsel tematik analiz yöntemiyle analiz edilmiştir. Nicel veriler ise "Çocukların Çevreye Yönelik Tutum Ölçeği-Okul Öncesi Versiyonu (CATES-PV)" kullanılarak toplanmış, SPSS paket programı ile betimsel istatistik ve bağımsız gruplar t testi analizi yapılmıştır. Araştırma sonuçları, sürdürülebilir çevre eğitimi programı uygulanan deney grubu lehine anlamlı farklılık göstermiştir. Kontrol grubu ve deney grubunun son test sonuçları karşılaştırıldığında deney grubu lehine anlamlı bir farklılık tespit edilmiştir. Nitel analiz sonuçları, eğitime katılan çocukların çevresel tutumlarında olumlu bir değişim ve ekosentrik tutumlarının arttığını ortaya koymuştur. Nitel bulgular okul öncesi çocukların iklim değişimi, sera etkisi ve buzulların erimesi gibi soyut kavramaları algılayabildiklerini göstermektedir. Çocuklar, uygulanan Çevre Eğitim Programı sonrasında özellikle geri dönüşüm bilinci konusunda olumlu tutum değişimleri sergilemişlerdir. Bu sonuçlar, sürdürülebilir çevre eğitimi programının çocukların çevreye yönelik olumlu tutumlar geliştirmesini desteklediğini göstermektedir. Bu tür programlar okul öncesi çocuklarda çevre duyarlılığını artırmada etkili olduğundan, yaygınlaştırılmaları önerilmektedir.The aim of this study is to examine the impact of the Sustainable Environmental Education (SEE) program on children's environmental attitudes. The study aims to contribute to raising children as environmentally conscious individuals. In the study, embedded intervention design was preferred; in this design, qualitative and quantitative methods were applied together, sequentially and intertwined to examine the subject in depth. The study group of the research consisted of 38 children aged 60-72 months who were selected through purposive sampling and who were studying in an official preschool institution in Beylikdüzü, Istanbul. Qualitative data were collected using a "semi-structured interview form" developed by the researcher and analyzed using descriptive analysis method. Quantitative data were collected using the "Children's Attitudes Towards the Environment Scale-Preschool Version (CATES-PV)" and descriptive statistics and independent groups t-test analysis were performed with the SPSS package program. The results of the study showed a significant difference in favor of the experimental group in which a sustainable environmental education program was implemented. When the post-test results of the control group and the experimental group were compared, a significant difference was found in favor of the experimental group. The results of the qualitative analysis revealed a positive change in the environmental attitudes of the children who participated in the training and an increase in their ecocentric attitudes. Qualitative findings show that preschool children can perceive abstract concepts such as climate change, greenhouse effect and melting of glaciers. After the Environmental Education Program, children exhibited positive attitudinal changes especially in recycling awareness. These results show that the SEE program for preschool education has a positive effect on children's attitudes towards the environment. Since such programs are effective in increasing environmental awareness in preschool children, it is recommended that they be expanded
A Multi-Objective Deep Reinforcement Learning Algorithm for Spatio-temporal Latency Optimization in Mobile LoT-enabled Edge Computing Networks
No full textThe rapid increase in Mobile Internet of Things (IoT) devices requires novel computational
frameworks. These frameworks must meet strict latency and energy efficiency requirements in
Edge and Mobile Edge Computing (MEC) systems. Spatio-temporal dynamics, which include the
position of edge servers and the timing of task schedules, pose a complex optimization problem.
These challenges are further exacerbated by the heterogeneity of IoT workloads and the constraints
imposed by device mobility. The balance between computational overhead and
communication challenges is also a problem. To solve these issues, advanced methods are needed
for resource management and dynamic task scheduling in mobile IoT and edge computing environments.
In this paper, we propose a Deep Reinforcement Learning (DRL) multi-objective algorithm,
called a Double Deep Q-Learning (DDQN) framework enhanced with Spatio-temporal
mobility prediction, latency-aware task offloading, and energy-constrained IoT device trajectory
optimization for federated edge computing networks. DDQN was chosen for its optimize stability
and reduced overestimation in Q-values. The framework employs a reward-driven optimization
model that dynamically prioritizes latency-sensitive tasks, minimizes task migration overhead,
and balances energy efficiency across devices and edge servers. It integrates dynamic resource
allocation algorithms to address random task arrival patterns and real-time computational demands.
Simulations demonstrate up to a 35 % reduction in end-to-end latency, a 28