Serverless computing is an emerging new paradigm in cloud computing. Serverless denotes a special kind of software architecture in which application logic is executed in an environment without visible processes, opera...
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ISBN:
(数字)9781538652329
ISBN:
(纸本)9781538652336
Serverless computing is an emerging new paradigm in cloud computing. Serverless denotes a special kind of software architecture in which application logic is executed in an environment without visible processes, operating systems, servers or virtual machines. Serverless enables the deployment of applications and services to the cloud as code snippets or functions as opposed to a monolithic program. While serverless is rapidly evolving, it lacks a standard definition and general consensus within the technical community but has the potential to massively alter the way in which software delivers business value. This work presents the architecture and implementation of a shared drive web application using AWS Lambda. The application is tested to compare the response time for cold and warm requests, effect on load balancing, performance on memory reservation and resource retention behavior. Additionally, the gaps and limitations in current serverless architecture are discussed.
This paper shows approaches to accelerate pixel-level image fusion speed using graphics hardware. Recently, to improve visibility through maximization of information collected through development of various sensors an...
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This paper shows approaches to accelerate pixel-level image fusion speed using graphics hardware. Recently, to improve visibility through maximization of information collected through development of various sensors and improvement of sensing technology, the importance of not only development of new fusion algorithm but speed of fusion process is increasing. Though specialized fusion boards for real time fusion processing are already developed, but they have disadvantages such as expensive price and lack of scalability. These disadvantages can be replaced by GPU (Graphics Processing Unit) that have good price/performance ratio, hardware programmability, enormous computing power and speed. Fifteen fusion methods were used for the tests that give numerical data regarding comparison of GPGPU (general-purpose GPU), CUDA (the latest architecture of GPU) with traditional CPU-based implementations. The evaluation results prove GPU acceleration to be much faster than CPU-based multi-threading.
In this paper, we investigate performances of Evolutionary Programming (EP) for optimization problems. An individual of EPs has searching optimum points and strategy parameters. The procedures of EP are consists of an...
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In this paper, we investigate performances of Evolutionary Programming (EP) for optimization problems. An individual of EPs has searching optimum points and strategy parameters. The procedures of EP are consists of an initialization, a mutation, an evaluation of the individual and a selection. These processes are repeated while termination conditions are not satisfied. Experimental results show an efficiency of various types of EP.
Adaptive antenna system synthesis is presented for wireless communication with reduced interference with the help of non linear variable forgetting factor recursive least squares algorithm(NLVFF-RLS). A case of 8 elem...
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Adaptive antenna system synthesis is presented for wireless communication with reduced interference with the help of non linear variable forgetting factor recursive least squares algorithm(NLVFF-RLS). A case of 8 elements of uniform linear array is considered and operated in the WiMAX frequency of (IEEE802.16e) 2.5 *** signal is modeled as MSK symbols. This approach models the uniform linear array to track the dynamic changes in the angle of arrival and simultaneously steers number of users with minimum half power beam width (HPBW) and maximum directivity. The novel aspect of the proposed (RLS) algorithm is its convergence speed and ability to track several users in the adaptive signal environment. Simulation results shows that the recursive Least squares (RLS) algorithm yields 12 db interference suppression with appreciable convergence rate in 10 iterations in the scanning sector of -50 to + 50. Conventional RLS with constant forgetting factor will not yield the optimal performance in non-stationary environment and the algorithm is simulated in Matlab.
Wireless Sensor Networks (WSNs) are networks of spatially distributed autonomous nodes used to perform various monitoring tasks. Localization is one of the challenging issues in WSNs. Several approaches have been prop...
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Wireless Sensor Networks (WSNs) are networks of spatially distributed autonomous nodes used to perform various monitoring tasks. Localization is one of the challenging issues in WSNs. Several approaches have been proposed to calculate positions of randomly deployed sensor nodes. In this paper, an attempt is made to optimize the location of the sensor nodes. A new hybrid Bio-inspired algorithm is used to improve the efficiency and accuracy and overcome the drawbacks like getting trapped at a local extreme in the optimization process of Bacterial Foraging Algorithm. In the proposed algorithm the idea of Particle swarm optimization is merged into the chemotaxis of bacterial foraging optimization algorithm which can effectively speed up the convergence rate and the elimination probability in elimination-dispersion is proposed according to the energy of bacteria which can improve the global searching ability.
The concept of Digital Twin (DT) has now been applied to various sectors of human society and the trend of using is rapidly growing despite the fact that it requires vast digital infrastructure. Regardless of their ph...
The concept of Digital Twin (DT) has now been applied to various sectors of human society and the trend of using is rapidly growing despite the fact that it requires vast digital infrastructure. Regardless of their physical counterparts, the ultimate goal of using DT is to improve the quality of human life and living environment. Even though, there are numerous application areas such as manufacturing, smart city, supply chain, retail, and healthcare, in this talk, Id like to focus more on healthcare sector starting out by discussing the convergence of the digital twin technologies and application of the technologies on healthcare especially on personal healthcare using IoT, networking technologies, standard based medical data, cybersecurity, and cloud computing. With such effort, DT will lead us to personalized precision medicine with less medical errors and the improvement of personal health.
Nature-inspired algorithms have become increasingly prevalent in engineering and mathematical optimization due to their efficacy and adaptability. Among these algorithms, the Monarch Butterfly Optimization Algorithm (...
Nature-inspired algorithms have become increasingly prevalent in engineering and mathematical optimization due to their efficacy and adaptability. Among these algorithms, the Monarch Butterfly Optimization Algorithm (MBOA) is a population-based metaheuristic, characterized by its simple implementation and the utilization of the Migration Operator (MO) and Butterfly Adjusting Rate (BAR) to guide the search path of butterflies. However, the algorithm can suffer from susceptibility to local optima traps, early convergence, and inferior performance due to a lack of random factors. To address these challenges, we propose an Enhanced Monarch Butterfly Optimization Algorithm (E-MBOA) that incorporates Ranking-based Selection (RBS) and a Random Jumping strategy. The RBS prioritizes the search direction based on individuals' ranks in the population, enhancing the search process by encouraging the exploration of feasible areas with lower objective function values. By employing the Random Jumping strategy, the process can effectively investigate the search space and avoid local optima, thus mitigating early convergence issues. The proposed model is assessed on a variety of mechanical and engineering design problems. Results are contrasted to other optimization approaches published in the literature, demonstrating that the proposed model offers faster convergence to global optima and effectively avoids local optima traps. E-MBOA's performance validates its feasibility and effectiveness as a powerful tool for resolving complex engineering optimization problems.
The Internet of Things (IoT) is a network of smart tiny devices which are restricted by processing power and energy consumption. Because of these restriction, it is difficult to use some existing security mechanisms t...
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The Internet of Things (IoT) is a network of smart tiny devices which are restricted by processing power and energy consumption. Because of these restriction, it is difficult to use some existing security mechanisms to protect devices against network attacks. Implementation of the Intrusion Detection System (IDS) results in secure IoT network but requires more computing and processing power. In this research, we proposed the lightweight opinion metric based intrusion detection mechanism against malicious attacks on routing protocol in IoT network This mechanism uses opinion metrics to compute average belief values for every node in network and detect the malicious node based on that value in energy favorable way. The simulation results interpret the quality performance in detection of harmful attack in IoT network.
Applications in the open and dynamic environment become more intelligent and complicated. To secure these applications is a big challenge. RBAC model, as a de facto standard in access control field, is widely used in ...
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ISBN:
(纸本)9781424452446
Applications in the open and dynamic environment become more intelligent and complicated. To secure these applications is a big challenge. RBAC model, as a de facto standard in access control field, is widely used in many applications. But the lack of dynamic and formal method to describe RBAC makes the model can't completely adapt to the open and dynamic environment. To solve this problem, we introduce a three level RBAC model which unifies the administrative components, the administrative actions and the regular RBAC components, and also proposes a dynamic description logic, called DDL RBAC , to formalize the three level model. Based on the formal description of RBAC with DDL RBAC , an executable action decision algorithm to guarantee the dynamic consistency of systems is also presented.
Artificial Bee Colony (ABC) has been applied to solve constrained optimization problems such as green wireless communications, path planning and so on. To solve the problem that ABC algorithm is easy to fall into loca...
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