Fog-assisted cloud computing advances have paved the way for new solutions in online gaming, by integrating all rendering resources directly into the edges of the cloud. However, despite the numerous benefits, these s...
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ISBN:
(纸本)9780738123462
Fog-assisted cloud computing advances have paved the way for new solutions in online gaming, by integrating all rendering resources directly into the edges of the cloud. However, despite the numerous benefits, these systems still remain prone to network delays, ergo, the discovery of an optimal rendering service placement in the fog layer, that effectively reduces capital deployment cost for the game providers and access latency cost for the game clients, is a challenging issue. In fact, it falls into the category of the well-known (NP-hard) facility location problems. As such, conventional centralized approaches, that require global network knowledge, in most cases are deemed unscalable and cost-prohibitive, thus, distributed solutions must be further explored. The approach followed here, introduces a Rendering Service Allocation Policy (RSAP) to autonomously allocate services towards an optimal placement, based strictly on local information available to the fog renderers regarding their aggregate rendering demands, yielding reduced access latency and deployment costs, whilst meeting their stringent capacity bounds. Simulation results showcase the efficiency of RSAP and verify its elastic behavior under different deployment scenarios.
Using a mobile charger to wirelessly charge sensors is a promising yet not well-solved technique. Existing trajectory planning schemes for wireless charger either (1) fail to optimize the one-to-many characteristic of...
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ISBN:
(纸本)9781728125190
Using a mobile charger to wirelessly charge sensors is a promising yet not well-solved technique. Existing trajectory planning schemes for wireless charger either (1) fail to optimize the one-to-many characteristic of wireless charging or (2) fail to jointly optimize the charger movement cost and the charging cost. The objective of this paper is to find the optimal trajectory planning for a mobile charger in terms of energy minimization in the quadratic attenuation charging model. There exists a trade-off between charging efficiency and trajectory distance. If the mobile charger comes close to sensors, the charging efficiency is high, but the entire charging trajectory of the charger will be long and vice versa. To address this trade-off, we propose the idea of charging bundle and optimize the charger's trajectory based on the charging bundle rather than each sensor. The optimal charging bundle generation problem and the bundle trajectory optimization problem are discussed gradually. Both of them are proven to be NP-hard. Then, we first propose a greedy bundle generation algorithm with an approximation ratio of In n, where n is the number of sensors. After that, we propose a TSP-based solution and further optimize the TSP-trajectory by jointly considering the adjacent charging locations. Theorems are proposed to effectively find the optimal location. Extensive experiments show that our scheme achieves a much better performance than traditional schemes.
An agile approach to the design and development of hardware has been made possible by fast prototyping using additive manufacturing (AM). Although the procedure is short, a disadvantage would be any potential mistakes...
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An agile approach to the design and development of hardware has been made possible by fast prototyping using additive manufacturing (AM). Although the procedure is short, a disadvantage would be any potential mistakes or problems that would be hard to spot. Failures that go unnoticed might harm the AM device and result in wasted output, costing more time and money. The goal of the research is to create a system that tracks 3D printing activities and forecasts printer temperature readings in the future. This article describes the creation of 3DP Check, a diagnostic tool for additive manufacturing that uses deep learning to look for errors. The system will employ a web application built on the Internet of Things (IoT) to gather real-time data from several sensors linked to an AM device. Forecasting metrics, including the root mean square error (RMSE), mean average error (MAE), symmetric mean absolute percentage error (sMAPE), and r-square (R 2 ) values, will be analyzed when the model is put to the test. With an RSME of 0.4391, MAE of 0.2834, sMAPE of 0.1416, and R 2 of 0.6922, LSTM is shown to perform best after a thorough comparative examination.
We consider a distributed deployment of sensors and a network of wireless relay nodes designed to operate in an environment in which there exists neither a stable energy source nor a global clock to which the network ...
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The paper presents a model for the virtualization of a wireless sensor network in a smart home application for energy consumption monitoring. By correlating physical sensor data with information on home's design, ...
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ISBN:
(纸本)9781728140681
The paper presents a model for the virtualization of a wireless sensor network in a smart home application for energy consumption monitoring. By correlating physical sensor data with information on home's design, sunrise and sunset time according to day of year, time of day and weather data, novel services for consumed power statistics and efficiency of use of natural light were developed in the virtualized environment. Based on this model, distributed applications were developed to implement analysis of energy consumption over large scale areas. We detail the solution implementation based on the OpenSHS simulator and NodeRed.
In this talk we present our works on decision support analytic for autonomous systems. Decision support analytic process multiple sensory information collected by an autonomous system such as lidar, camera, RGBD, acou...
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ISBN:
(纸本)9781728172903
In this talk we present our works on decision support analytic for autonomous systems. Decision support analytic process multiple sensory information collected by an autonomous system such as lidar, camera, RGBD, acoustic to perform signal detection, target tracking, object recognition. As multiple sensors are involved, our system uses sensor registration, data association and fusion to combine sensory information. The next layer of the proposed decision support system orients the processed sensory information at feature and classification levels to perform situation assessment and treat evaluation. Based on the assessment, the decision support system will recommend decision. If the uncertainty is high, actions including resource allocation, planning will be used to extract or reassess the sensory information to get a recommended decision with lower uncertainty. This talk will also presents the applications of the proposed decision support analytic in four industrial projects including 1) goal-driven net-enabled distributed sensing for maritime surveillance, 2) autonomous navigation and perception of humanoid service robots, 3) distance learning for oil and gas drilling and 4) cognitive vehicles.
In recent years, the technology of industrial and agricultural generation driven by information technology is developing vigorously. The design and research of distributed temperature and humidity monitoring system is...
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Privacy concerns are considered one of the major challenges in the applications of speech emotion recognition (SER) as it involves the complete sharing of speech data, which can bring threatening consequences to peopl...
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The sources of energy supply for telecommunication stations are territorially distributed facilities with a multi-level management hierarchy and a large number of structural units. Monitoring them is one of the pressi...
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ISBN:
(纸本)9781665432597
The sources of energy supply for telecommunication stations are territorially distributed facilities with a multi-level management hierarchy and a large number of structural units. Monitoring them is one of the pressing issues, the main challenge of which is to develop an effective communication architecture for the monitoring system. This article analyzes the communication architecture of solar power supply monitoring, based on the analysis, a new architecture is developed that differs from the communication architecture of other monitoring systems. In this communication architecture, wireless sensor networks, which are considered cost-effective and practical in the application of solar power supply sources for remote monitoring systems, are analyzed. One of the leading directions in this field as a basic wireless sensor technology for monitoring system communication architecture is the development of recommendations for the use of ZigBee technology based on the ieee 802.15.4 standard.
Nowadays, due to the benefits of the agile method, such as changing rapidly and fast delivery of working software, most software projects are naturally distributed agile projects (DAD). DAD team members work from vari...
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ISBN:
(纸本)9781665411592
Nowadays, due to the benefits of the agile method, such as changing rapidly and fast delivery of working software, most software projects are naturally distributed agile projects (DAD). DAD team members work from various remote sites. This leads to the emergence of many significant challenges in risk management. Hence, it requires risk safety techniques to be implemented to mitigate the occurrence of risks. There is no standardized process for teams to deal with DAD risks. In this paper, a multi-agent reinforcement learning risk management model for distributed agile software projects is proposed. The proposed model is implemented to apply a dynamic policy. The model is applied as an experiment to definite numbers for a set of risk factors such as communication and coordination risk, project management risk, and SDLC risk. The proposed model is developed using multiple individual learning using the Q- learning algorithm. A DAD project with two projects is used to evaluate the proposed model. The proposed model was assessed and analyzed for its effectiveness. The results of the evaluation are given.
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