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Learning ServiceNow
ServiceNow is a powerful IT service management and automation platform that has made significant inroads in the Enterprise market due to its robust set of features and capabilities. This book will help you get started as a ServiceNow developer or administrator, and leverage the full capabilities of the ServiceNow platform through real-world.
eBook
Efficient Transformer Architectures for Diabetic Retinopathy Classification from Fundus Images: DR-MobileViT, DR-EfficientFormer, and DR-SwinTiny
Diabetic retinopathy (DR) is a prevalent cause of vision loss, necessitating efficient diagnostic tools, particularly in resource-limited settings. This study presents three lightweight transformer-based models— DR-MobileViT, DR-EfficientFormer, and DR-SwinTiny—for automated DR classification from fundus images (APTOS 2019: 3,662 images; Messidor-2: 1,748 images). After preprocessing including resizing to 224×224 pixels and CLAHE enhancement, these models, leveraging compact architectures (1.8–3.5M parameters), are trained using an AdamW optimizer with data augmentation. DR-MobileViT integrates convolutional and transformer layers, DR-EfficientFormer employs a dimension-consistent design, and DRSwinTiny utilizes shifted window attention. All models were initialized with ImageNet pretrained weights. Evaluated on the APTOS 2019 and Messidor-2 datasets, they achieve quadratic weighted kappa (QWK) scores up to 0.89 and areas under the ROC curve (AUC) up to 0.95. These models approach the performance of top-performing CNN ensembles from the APTOS 2019 challenge (which exceed 40M parameters) while reducing inference times to 10–15 ms/image (NVIDIA P100 GPU) and computational overhead by over 90%. These results indicate their potential for scalable, point-of-care DR screening, offering a viable solution for early detection in underserved regions.
Journal Article
Blockchain-based peer-to-peer transactions in energy systems
Blockchain is a nascent technology with the potential to disrupt the operational and business models of many industries. The enormous successes recorded by solutions underpinned by blockchain have attracted much attention to it. Beginning from the emergence of Bitcoin in the financial sector, blockchain has continued to impact other industries. It finds application in healthcare, supply chain, energy among other sectors. The technology has emerged as a viable technology for enabling decentralized peer-to-peer transactions. With the high adoption of renewable energy sources, the modern power system has become decentralized thereby paving the way for the integration of blockchain-based solutions. In the energy industry, blockchain can be employed to facilitate decentralised peer-to-peer energy transactions between power grid entities, energy storage sharing among others.
eBook
If It's Smart, It's Vulnerable
Reimagine the future of the internet All our devices and gadgets-from our refrigerators to our home security systems, vacuum cleaners, and stereos-are going online, just like our computers did. But once we've successfully connected our devices to the internet, do we have any hope of keeping them, and ourselves, safe from the dangers that lurk beneath the digital waters? In If It's Smart, It's Vulnerable, veteran cybersecurity professional Mikko Hypponen delivers an eye-opening exploration of the best-and worst-things the internet has given us. From instant connectivity between any two points on the globe to organized ransomware gangs, the net truly has been a mixed blessing. In this book, the author explores the transformative potential of the future of the internet, as well as those things that threaten its continued existence: government surveillance, censorship, organized crime, and more. Readers will also find: Insightful discussions of how law enforcement and intelligence agencies operate on the internet Fulsome treatments of how money became data and the impact of the widespread use of mobile supercomputing technology Explorations of how the internet has changed the world, for better and for worse Engaging stories from Mikko's 30-year career in infosecPerfect for anyone seeking a thought-provoking presentation of some of the most pressing issues in cybersecurity and technology, If It's Smart, It's Vulnerable will also earn a place in the libraries of anyone interested in the future of the internet.
eBook
Automated data collection with R
A hands on guide to web scraping and text mining for both beginners and experienced users of R
* Introduces fundamental concepts of the main architecture of the web and databases and covers HTTP, HTML, XML, JSON, SQL.
* Provides basic techniques to query web documents and data sets (XPath and regular expressions).
* An extensive set of exercises are presented to guide the reader through each technique.
* Explores both supervised and unsupervised techniques as well as advanced techniques such as data scraping and text management.
* Case studies are featured throughout along with examples for each technique presented.
* R code and solutions to exercises featured in the book are provided on a supporting website.
eBook
Platform ecosystems : aligning architecture, governance, and strategy
Platform Ecosystems is a hands-on guide that offers a complete roadmap for designing and orchestrating vibrant software platform ecosystems.Unlike software products that are managed, the evolution of ecosystems and their myriad participants must be orchestrated through a thoughtful alignment of architecture and governance.
eBook
SAP on Azure Implementation Guide
Learn how to migrate your SAP data to Azure simply and successfully.
Key Features
* Learn why Azure is suitable for business-critical systems
* Understand how to migrate your SAP infrastructure to Azure
* Use Lift & shift migration, Lift & migrate, Lift & migrate to HANA, or Lift & transform to S/4HANA
Book Description
Cloud technologies have now reached a level where even the most critical business systems can run on them. For most organizations SAP is the key business system. If SAP is unavailable for any reason then potentially your business stops. Because of this, it is understandable that you will be concerned whether such a critical system can run in the public cloud. However, the days when you truly ran your IT system on-premises have long since gone. Most organizations have been getting rid of their own data centers and increasingly moving to co-location facilities. In this context the public cloud is nothing more than an additional virtual data center connected to your existing network.
There are typically two main reasons why you may consider migrating SAP to Azure: You need to replace the infrastructure that is currently running SAP, or you want to migrate SAP to a new database. Depending on your goal SAP offers different migration paths. You can decide either to migrate the current workload to Azure as-is, or to combine it with changing the database and execute both activities as a single step. SAP on Azure Implementation Guide covers the main migration options to lead you through migrating your SAP data to Azure simply and successfully.
What you will learn
* Successfully migrate your SAP infrastructure to Azure
* Understand the security benefits of Azure
* See how Azure can scale to meet the most demanding of business needs
* Ensure your SAP infrastructure maintains high availability
* Increase business agility through cloud capabilities
* Leverage cloud-native capabilities to enhance SAP
Who this book is for
SAP on Azure Implementation Guide is designed to benefit existing SAP architects looking to migrate their SAP infrastructure to Azure. Whether you are an architect implementing the migration or an IT decision maker evaluating the benefits of migration, this book is for you.
eBook