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A fault-tolerant scheduling strategy through proactive and clustering techniques for scientific workflows in cloud computing

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Soft Computing 2025年第2期29卷 755-781页

作者： Farhood, Suha Mubdir Khorsand, Reihaneh Hussein, Nashwan Jasim Ramezanpour, Mohammadreza Branch Islamic Azad University Isfahan Iran Department of Programming Collage of Information Technology University of Babylon Hillah Iraq Department of Computer Engineering Mobarakeh Branch Islamic Azad University Mobarakeh Isfahan Iran

Cloud computing offers solutions for various scientific and business applications. Large-scale scientific applications, which are organized as scientific workflows, are carried out using cloud computing. However, the higher failure rates in cloud computing can be attributed to the numerous servers and components dealing with intense workloads. This study presents a fault-tolerant scheduling approach using proactive and clustering methods for scientific workflows in cloud computing. Initially, the task clustering issue is addressed by consolidating multiple short-duration tasks into a single job to improve the runtime performance of workflow executions. Subsequently, an automated workflow scheduling strategy is outlined with four key stages: monitoring, analysis, planning, and execution. During monitoring, clustered jobs and the capacities of available cloud resources are observed. In the analysis phase, the accuracy of failure prediction is enhanced by employing the Group Method of Data Handling (GMDH) neural network prior to any faults or failures. The planning stage introduces a novel hybrid multi-objective algorithm, MOPSO-aSA, based on MOPSO and adaptive simulated annealing (SA), to streamline workflow scheduling in error-prone execution environments. Moreover, the reliability of application execution is maintained through re-clustering and migration techniques following any faults or failures. Finally, based on the experimental findings, it is evident that the proposed strategy surpasses other methods in terms of makespan, total cost, energy consumption, and failure rate. © The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature 2025.

关键词： Simulated annealing

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Renal Tumor Classification and Detection Based on Artificial Intelligence 3

Renal Tumor Classification and Detection Based on Artificial...

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3rd International Conference on Communications, information System, and Data Science, CISDS 2024

作者： Al-Taie, Raflaa Hilmi Hussein, Nashwan J. Physiology and Organ Functions Department College of Medicine University of Babylon Iraq Department of Electrical Power Engineering AL-Hussain University College Department of Programming Collage of Information Technology University of Babylon Iraq

ISBN: (数字)9781510688322

ISBN: (纸本)9781510688315

The kidney is a crucial organ in the human body, co-operating billions of pipelines to cleanse the body's water. Kidney failure, renal tumor happens when cells divide uncontrollably and form an aberrant collection of cells surrounding or within the kidney. This cell type has the ability to disrupt regular kidney activity and destroy healthy cells. The prompt diagnosis of renal tumor is critical since they can be fatal if left untreated. Because it is dependent on the skill of the person analyzing the images, the traditional approach of manually checking the MR image may not be very accurate. The study concentrated on the diagnosis of normal and normal renal tumor. To enhance accuracy and expedite diagnosis, using publicly accessible individual records, the present research used methodologies for machine learning, involving support vector machine learning (SVM), adaptive optimization (AO), as well as gradient enhancement (GE). It uses an approach for making the dataset reduced multidimensional. Image feature extraction is a data preprocessing method that minimizes the time required to train the proposed algorithm. The accuracy rates of the algorithms for diagnosing normal and up normal are reported to be 88.8 % for GB, 83.8 % for ADA, 86.1 % for SVM and 93.3% for KNN and for up normal diagnosis tumor are reported to be 55.3 % for GB, 55.4 % for SVM, 55.3 % for ADA and 51.0% for KNN. © 2025 SPIE.

关键词： Image enhancement

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Optimization of Neural Networks Through Semi-Structured Activation Pruning

Optimization of Neural Networks Through Semi-Structured Acti...

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Wave Electronics and its Application in information and Telecommunication Systems (WECONF)

作者： T. M. Tatarnikova A. S. Raskopina Institute of Information Technology and Programming St. Petersburg State University of Aerospace Instrumentation (SUAI) St. Petersburg Russia

ISBN: (数字)9781665465687

ISBN: (纸本)9781665465694

Modern neural networks are becoming deeper and more complex, leading to increased computational costs and the need for powerful hardware. The optimization method through semi-structured pruning of activations allows for memory savings, increased energy efficiency, and accelerated inference. This article analyzes existing pruning methods, their advantages and limitations, and suggests ways to effectively implement this approach. Additionally, an experiment was conducted to evaluate the effect of unstructured and semi-structured pruning on model accuracy compared to the original version.

关键词： Performance evaluation Adaptation models Costs Embedded systems Computational modeling Neural networks Memory management Hardware Energy efficiency Internet of Things

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Educational Research Trends of the Use of Gaze Learning Data Through Topic Modeling and Scientometric Analysis 1st

Educational Research Trends of the Use of Gaze Learning D...

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1st International workshop on AI for Research, AI4Research 2024 and 4th International workshop on Democracy and AI, DemocrAI 2024, held in conjunction with 33rd International Joint Conference on Artificial Intelligence, IJCAI 2024

作者： Lee, Jungmin Shin, Huigon Yoo, YoungJoon Choi, Jongwon Kim, Mi Song Department of Advanced Imaging GSAIM Chung-Ang University Seoul Korea Republic of Computer Programming and Analysis School of Information Technology Fanshawe College London Canada Department of Artificial Intelligence Chung-Ang University Seoul Korea Republic of Curriculum Studies Western University London Canada

ISBN: (纸本)9789819795352

Multimodal learning analytics have become increasingly important in enabling a deeper understanding of teaching and learning in educational research. However, in comparison to other multimodal learning data, there is a limited understanding of the trends within gaze learning data. To address this challenge, this study aims to identify latent topics in gaze learning data through topic modeling and scientometric analysis. We analyzed the abstracts of 573 peer-reviewed and conference proceeding papers that used gaze learning data, written in English, and published between 2008 and February 2024. The findings are as follows. First, three main topics were identified through topic modeling analysis: (learning analytics, multimodal learning, and inclusive learning). Second, the scientometric analysis revealed the structure in which diverse clusters in cited references and institutions are connected around the emerging topics. Based on these findings, the study would provide insights into research directions in both educational research and applications using gaze learning data. © The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd. 2025.

关键词： Contrastive Learning

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Study of an OPTO-ASIC for a Functionally Safe Speed Sensor Using the Spatial Frequency Filter Method

Study of an OPTO-ASIC for a Functionally Safe Speed Sensor U...

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IEEE Design and Diagnostics of Electronic Circuits and Systems (DDECS)

作者： Frank Wasinski Werner Bonath Ubbo Ricklefs Michael Schwarz Josef Börcsök Dept. of Electrical Engineering and Information Technology THM University of Applied Sciences Giessen Germany ICAS Institute for Computer Architecture and System Programming University of Kassel Kassel Germany

ISBN: (数字)9798331528010

ISBN: (纸本)9798331528027

For decades, speed sensors based on the spatial frequency filter method have successfully proven themselves in a wide range of applications. This makes the sensor concept particularly suitable for the area of functional safety. New filter variants extend the previous measuring range to very low speeds up to standstill detection. By combining the sensor with a safety system on chip for recording and analysing measured values, a functionally safe measuring chain can be established. In order to demonstrate the variability and performance of the new filters, an optical application-specific integrated circuit was designed, which forms the basis for further extensive tests. The core components are a large number of freely configurable photodiode channels, which were realised via a redundant structure, as well as two different transimpedance amplifier concepts. In the further course of the project, the ASIC will be analysed with regard to its desired performance parameters and its robustness.

关键词： Optical filters Semiconductor device measurement Optical design Stimulated emission Safety Topology System-on-chip Optical sensors Optical amplifiers Velocity measurement

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A blockchain-oriented covert communication technology with controlled security level based on addressing confusion ciphertext

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Frontiers of Computer Science 2025年第2期19卷 133-135页

作者： Lejun ZHANG Bo ZHANG Ran GUO Zhujun WANG Guopeng WANG Jing QIU Shen SU Yuan LIU Guangxia XU Zhihong TIAN Sergey GATAULLIN Cyberspace Institute Advanced Technology Guangzhou UniversityGuangzhou 510006China Research and Development Center for E-Learning Ministry of EducationBeijing 100039China College of Information Engineering Yangzhou UniversityYangzhou 225009China School Math and Computer Science Quanzhou Normal UniversityQuanzhou 362000China Pazhou Lab Guangzhou 510330China School of Physics and Materials Science Guangzhou UniversityGuangzhou 510006China Central Economic and Mathematics Institute Russian Academy of SciencesMoscow 117418Russia Industrial Programming Department MIREA-Russian Technological UniversityMoscow 119454Russia

1 Introduction Traditional covert communication[1]usually relies on centralized channels,which are efficient in transmission but susceptible to eavesdropping and attacks,leading to information ***,distributed methods also exist,such as peer-to-peer networks and distributed hash *** technology,which is decentralized,anonymous,non-tamperable and anti-attack,can be applied to covert communication to solve the problems of traditional methods and improve the quality of communication.

关键词： communication tables networks

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STRUCTURE CLASHES - AN ALTERNATIVE TO PROGRAM INVERSION

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COMPUTER JOURNAL 1990年第2期33卷 126-132页

作者： DROMEY, RG CHORVAT, TA Programming Methodology Research Group Computing and Information Technology Griffith University Nathan Brisbane 4111Australia

A method for handling boundary structure clashes is presented. It provides a simple alternative to Jackson's program inversiontechnique. It is a constructive approach based on the use of prototypes. Development begins by solving the corresponding simplerproblem that has no structure clashes. This solution is then used to guide the solution of the original problem. Programsconstructed in this way preserve the correspondence between the program control structure and the data structure. They shouldtherefore be easier to maintain than their counterparts developed using Jackson's program inversion *** May 1988. revised August 1988.

关键词： Computer programming

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The use of Cryptography in Network Security

The use of Cryptography in Network Security

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9th International Conference on Application of information and Communication Technologies, AICT 2015

作者： Jafarov, Zafar Information Technology and Programming' Department Azerbaijan Technical University Baku Azerbaijan

ISBN: (纸本)9781467368551

Network Security is the most vital component in information security because it is responsible for securing all information passed through networked computers. Network Security refers to all hardware and software functions, characteristics, features, operational procedures, accountability, measures, access control, and administrative and management policy required to provide an acceptable level of protection for Hardware and Software, and information in a network. Only one particular element underlies many of the security mechanisms in use: Cryptographic techniques; hence our focus is on this area Cryptography. Cryptography is an emerging technology, which is important for network security. Research on cryptography is still in its developing stages and a considerable research effort is still required for secured communication. © 2015 IEEE.

关键词： Network security

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The design of blocks integration tool to support end-user programming

The design of blocks integration tool to support end-user pr...

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2011 International Conference on Electrical Engineering and Informatics, ICEEI 2011

作者： Norhudha Sarif, Siti Idris, Sufian Zin, Abdullah Mohd Programming and Software Technology Research Group Faculty of Information Science and Technology Universiti Kebangsaan Malaysia Malaysia

ISBN: (纸本)9781457707520

End-user programming is a term that refers to computer programming carried out by end users who do not necessarily have a background in writing programs in conventional programming languages. There is much interest amongst end-users to be able to write their own programs. In order to support end-user programming, the concept of Block Based Software Development has been introduced. In this environment, end-users can develop applications by selecting, customizing and combining software blocks. A block is basically a single-layer software component that can perform a specific function. It is assumed that in this environment, there will be a large number of blocks available to be used by the end-users. Block Integration Tool is an Integrated Development Environment (IDE) that can be used by end-users to develop applications. By using this tool, end-users can select a block and then drag it into the work area. Customization can be done by changing some properties of the block such as colour, text, audio and video content. This block can then be combined with the existing blocks in the work area. Once the process of selecting and combining blocks is completed, an application can then be generated. Implementations are carried out using Netbeans version 6.9. The evaluation of the tool will be carried out to ensure that it is suitable to be used by end users. © 2011 IEEE.

关键词： Software design

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Story telling approach for Integrating Software Blocks

Story telling approach for Integrating Software Blocks

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2011 International Conference on Electrical Engineering and Informatics, ICEEI 2011

作者： Hariri, Hamizah Mohamad Marini, Abu Bakar Zin, Abdullah Mohd Programming and Software Technology Research Group Faculty of Information Science and Technology Universiti Kebangsaan Malaysia Malaysia

ISBN: (纸本)9781457707520

Story telling is a process of conveying events by words, images and sounds. It has been used in every culture as a means of entertainment, education or for instilling moral values. The power of story telling has now been realized by computer science and software engineering community. It has been argued that story telling will enable the actual requirement to be identified earlier in the software development process. This approach has also been identified as one of the most suitable approach for end-user software development. A number of software development environment based on story telling approach have been developed, such as Storytelling Alice and JPie. Storytelling Alice is a programming environment that enables end-users (in this case students) to create computer applications by creating short 3D animated movies. JPie is a programming environment that was designed to enable end-users to develop programs by using Java programming language. In this paper, we describe the design of a story telling approach for blocks integration in Block-Based Software Development Environment. A block is basically a single-layer software component that can perform a specific function. It is assumed that in this environment, there will be a large number of blocks to be used by the end-users through story telling approach. End-users can develop applications by writing instructions for selecting, customizing and combining software blocks to form a learning application as target application. © 2011 IEEE.

关键词： Software design

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