The Internet has stepped into Web 2.0 era. Web 2.0 application technologies and services are rapidly developing, accompanied by the innovation and revolution of business models. This article analyzes the development o...The Internet has stepped into Web 2.0 era. Web 2.0 application technologies and services are rapidly developing, accompanied by the innovation and revolution of business models. This article analyzes the development of Web 2.0 technologies and their promotion role in the development of Internet services, discusses the implementation of Web 2.0 core concepts (including user participation, resource sharing and platform) by the multiple Internet application technologies, and gives the development trends of Internet application technologies.展开更多
With the use of multimedia which combines the use o f text, sound, images, motion video and animation, it is more efficient for studen ts to learn mould design interactively. A program is created using several multi m...With the use of multimedia which combines the use o f text, sound, images, motion video and animation, it is more efficient for studen ts to learn mould design interactively. A program is created using several multi media software to simulate the mechanism of moulding processes in order to let s tudents understand the concept of mould design. In addition, students can even access the program through the Internet. Therefore, the software is defined as Multimedia and Internet Technology (MIT) program. The MIT program consists of four sections: (i) simulation of mould mechanisms, ( ii) cooling system, (iii) material information and (iv) games for tutorials. Sec tion One covers the basic operations of different types of moulds such as two-p late mould, three-plate mould, split mould, side-core mould and mould with und ercuts. Section Two introduces different types of cooling systems such as bubble r, baffle, cooling circuits, etc. Section Three provides some useful material in formation for mould design. Section Four contains games of matching mould compon ents, mould design problem finding and multiple choice questions to test student s how much they understand mould design concept. Multimedia is highly effective particularly in teaching and learning. It changes the nature of learning itself. It makes reading dynamic by giving words an impo rtant new dimension. It allows students to see, hear and do simultaneously, thus significantly reducing average learning time. Furthermore, through cooperative learning on Internet, students can access the program, share data or search info rmation anytime anywhere. Therefore, Multimedia and Internet Technology is one o f the vital aspects to speed up the realization of information age in society.展开更多
The Intemet is an unarguably valuable resource and tool in assisting ESL/EFL teaching and learning. However, it is also an expensive and not yet soundly developed technology that requires caution when used in teaching...The Intemet is an unarguably valuable resource and tool in assisting ESL/EFL teaching and learning. However, it is also an expensive and not yet soundly developed technology that requires caution when used in teaching language on a large scale. This paper discusses the value of the Intemet in teaching languages, the current ways that it is used in teaching English and examines the applicability of using it in EFL teaching in China.展开更多
The Internet of Things Application(IOTA) is an innovative public blockchain system tailored for the Internet of Things(IoT), focusing on challenges such as micro-payments, concurrency, and scalability. However, its di...The Internet of Things Application(IOTA) is an innovative public blockchain system tailored for the Internet of Things(IoT), focusing on challenges such as micro-payments, concurrency, and scalability. However, its distributed ledger,which utilizes a directed acyclic graph(DAG) structure, is vulnerable to double-spending attacks. To mitigate this risk,we propose a countermeasure employing zero-determinant(ZD) strategies to encourage honest transactions among nodes.First, we analyze the game-theoretic interactions between the IOTA committee and nodes, modeling them as an iterated prisoner's dilemma and deriving the conditions under which this dilemma holds. Next, we explore the conditions under which the IOTA committee can adopt ZD strategies, demonstrating the feasibility of unilaterally controlling node payoffs.Finally, theoretical analysis and experimental validation confirm the effectiveness of the proposed countermeasure, offering a novel game-theoretic solution for enhancing IOTA's security.展开更多
The relatively high percentage of people with disabilities in Europe combined with the facts of ageing population, strong relation of impairment to age, and as State of the Art shows, dissatisfaction or even unawarene...The relatively high percentage of people with disabilities in Europe combined with the facts of ageing population, strong relation of impairment to age, and as State of the Art shows, dissatisfaction or even unawareness of people with disabilities of available assistive technology are revealing the necessity to incorporate a user-centric approach that beyond 2nd generation practices will achieve to provide embedded and built-in accessibility solutions, as well as toolkits for developers, for ＂engraving＂ accessibility in existing and emerging mass-market ICT-based products, aiming to make accessibility open, plug and play, personalised and configurable, realistic and applicable in various contexts, keeping always the user in the loop. The AEGIS （Accessibility Everywhere： Groundwork, Infrastructure, Standards） IP （Integrated Project） of the 7th European Framework Programme seeks to determine whether 3rd generation access techniques will provide a more accessible, more exploitable and deeply embeddable approach in mainstream ICT （information and communication technologies）. This paper presents the holistic UCD （user-centered design） implementation plan, upon which AEGIS has been based in order to achieve its targets, starting from modelling its target users, in the most efficient way possible.展开更多
The form based application framework is proposed as a straight solution for E business applications. A Rapid Application Development (RAD) tool FormNet is designed for developing complex enterprise network applicat...The form based application framework is proposed as a straight solution for E business applications. A Rapid Application Development (RAD) tool FormNet is designed for developing complex enterprise network applications. Its main features and a comparison with Microsoft Windows Forms are presented in this paper. The tool can be also perfectly applied to the government form applications.展开更多
In this paper,we present a Q-Learning optimization algorithm for smart home HVAC systems.The proposed algorithm combines new convex deep neural network models with model predictive control(MPC)techniques.More specific...In this paper,we present a Q-Learning optimization algorithm for smart home HVAC systems.The proposed algorithm combines new convex deep neural network models with model predictive control(MPC)techniques.More specifically,new input convex long short-term memory(ICLSTM)models are employed to predict dynamic states in an MPC optimal control technique integrated within a Q-Learning reinforcement learning(RL)algorithm to further improve the learned temporal behaviors of nonlinear HVAC systems.As a novel RL approach,the proposed algorithm generates day-ahead HVAC demand response(DR)signals in smart homes that optimally reduce and/or shift peak energy usage,reduce electricity costs,minimize user discomfort,and honor in a best-effort way the recommendations from utility/aggregator,which in turn has impact on the overall well being of the distribution network controlled by the aggregator.The proposed Q-Learning optimization algorithm,based on epsilon-model predictive control(e-MPC),can be implemented as a control agent that is executed by the smart house energy management(SHEM)system that we assume exists in the smart home,which can interact with the energy provider of the distribution network,i.e.,utility/aggregator,via the smart meter.The output generated by the proposed control agent represents day-ahead local DR signals in the form of temperature setpoints for the HVAC system that are found by the optimization process to lead to desired trade-offs between electricity cost and user discomfort.The proposed algorithm can be used in smart homes with passive HVAC controllers,which solely react to end-user setpoints,to transform them into smart homes with active HVAC controllers.Such systems not only respond to the preferences of the end-user but also incorporate an external control signal provided by the utility or aggregator.Simulation experiments conducted with a custom simulation tool demonstrate that the proposed optimization framework can offer significant benefits.It achieves 87%higher success rate in optimizing setpoints in the desired range,thereby resulting in up to 15%energy savings and zero temperature discomfort.展开更多
The Globus Toolkit （GT） has been developed since the late 1990s to support the development of serviceoriented distributed computing applications and infrastructures. Core GT components address, within a common frame...The Globus Toolkit （GT） has been developed since the late 1990s to support the development of serviceoriented distributed computing applications and infrastructures. Core GT components address, within a common framework, fundamental issues relating to security, resource access, resource management, data movement, resource discovery, and so forth. These components enable a broader ＂Globus ecosystem＂ of tools and components that build on, or interoperate with, GT functionality to provide a wide range of useful application-level functions. These tools have in turn been used to develop a wide range of both ＂Grid＂ infrastructures and distributed applications. I summarize here the principal characteristics of the recent Web Services-based GT4 release, which provides significant improvements over previous releases in terms of robustness, performance,, usability, documentation, standards compliance, and functionality. I also introduce the new ＂dev.globus＂ community development process, which allows a larger community to contribute to the development of Globus software.展开更多
Modern datacenter servers hosting popular Internet services face significant and multi-facet challenges in performance and power control. The user-perceived performance is the result of a complex interaction of comple...Modern datacenter servers hosting popular Internet services face significant and multi-facet challenges in performance and power control. The user-perceived performance is the result of a complex interaction of complex workloads in a very complex underlying system. Highly dynamic and bursty workloads of Internet services fluctuate over multiple time scales, which has a significant impact on processing and power demands of datacenter servers. High-density servers apply virtualization technology for capacity planning and system manageability. Such virtuMized computer systems are increasingly large and complex. This paper surveys representative approaches to autonomic performance and power control on virtualized servers, which control the quality of service provided by virtualized resources, improve the energy efficiency of the underlying system, and reduce the burden of complex system management from human operators. It then presents three designed self-adaptive resource management techniques based on machine learning and control for percentile-based response time assurance, non-intrusive energy-efficient performance isolation, and joint performance and power guarantee on virtualized servers. The techniques were implemented and evaluated in a testbed of virtualized servers hosting benchmark applications. Finally, two research trends are identified and discussed for sustainable cloud computing in green datacenters.展开更多
In this paper, we present a novel cloud-based demand side management (DSM) optimization approach for the cost reduction of energy usage in heating, ventilation and air conditioning (HVAC) systems in residential homes ...In this paper, we present a novel cloud-based demand side management (DSM) optimization approach for the cost reduction of energy usage in heating, ventilation and air conditioning (HVAC) systems in residential homes at the district level. The proposed approach achieves optimization through scheduling of HVAC energy usage within permissible bounds set by house users. House smart home energy management (SHEM) devices are connected to the utility/aggregator via a dedicated communication network that is used to enable DSM. Each house SHEM can predict its own HVAC energy usage for the next 24 h using minimalistic deep learning (DL) prediction models. These predictions are communicated to the aggregator, which will then do day ahead optimizations using the proposed game theory (GT) algorithm. The GT model captures the interaction between aggregator and customers and identifies a solution to the GT problem that translates into HVAC energy peak shifting and peak reduction achieved by rescheduling HVAC energy usage. The found solution is communicated by the aggregator to houses SHEM devices in the form of offers via DSM signals. If customers’ SHEM devices accept the offer, then energy cost reduction will be achieved. To validate the proposed algorithm, we conduct extensive simulations with a custom simulation tool based on GridLab-D tool, which is integrated with DL prediction models and optimization libraries. Results show that HVAC energy cost can be reduced by up to 36% while indirectly also reducing the peak-to-average (PAR) and the aggregated net load by up to 9.97%.展开更多
文摘The Internet has stepped into Web 2.0 era. Web 2.0 application technologies and services are rapidly developing, accompanied by the innovation and revolution of business models. This article analyzes the development of Web 2.0 technologies and their promotion role in the development of Internet services, discusses the implementation of Web 2.0 core concepts (including user participation, resource sharing and platform) by the multiple Internet application technologies, and gives the development trends of Internet application technologies.
文摘With the use of multimedia which combines the use o f text, sound, images, motion video and animation, it is more efficient for studen ts to learn mould design interactively. A program is created using several multi media software to simulate the mechanism of moulding processes in order to let s tudents understand the concept of mould design. In addition, students can even access the program through the Internet. Therefore, the software is defined as Multimedia and Internet Technology (MIT) program. The MIT program consists of four sections: (i) simulation of mould mechanisms, ( ii) cooling system, (iii) material information and (iv) games for tutorials. Sec tion One covers the basic operations of different types of moulds such as two-p late mould, three-plate mould, split mould, side-core mould and mould with und ercuts. Section Two introduces different types of cooling systems such as bubble r, baffle, cooling circuits, etc. Section Three provides some useful material in formation for mould design. Section Four contains games of matching mould compon ents, mould design problem finding and multiple choice questions to test student s how much they understand mould design concept. Multimedia is highly effective particularly in teaching and learning. It changes the nature of learning itself. It makes reading dynamic by giving words an impo rtant new dimension. It allows students to see, hear and do simultaneously, thus significantly reducing average learning time. Furthermore, through cooperative learning on Internet, students can access the program, share data or search info rmation anytime anywhere. Therefore, Multimedia and Internet Technology is one o f the vital aspects to speed up the realization of information age in society.
文摘The Intemet is an unarguably valuable resource and tool in assisting ESL/EFL teaching and learning. However, it is also an expensive and not yet soundly developed technology that requires caution when used in teaching language on a large scale. This paper discusses the value of the Intemet in teaching languages, the current ways that it is used in teaching English and examines the applicability of using it in EFL teaching in China.
基金Project supported by the Natural Science Foundation of Inner Mongolia, China (Grant No. 2024LHMS06013)Basic Research Funds for Inner Mongolia Autonomous Region’s Directly Affiliated Universities in 2025 (Grant No. NCYWS25019)+2 种基金the Regional Digital Economy and Digital Governance Research Center (Grant No. szzl202401)the Research Project on Education and Teaching Reform at Inner Mongolia University of Finance and Economics (Grant No. JXZD2405)the 2025 High-Quality Research Achievement Cultivation Fund Project of Inner Mongolia University of Finance and Economics (Grant No. GZCG2529)。
文摘The Internet of Things Application(IOTA) is an innovative public blockchain system tailored for the Internet of Things(IoT), focusing on challenges such as micro-payments, concurrency, and scalability. However, its distributed ledger,which utilizes a directed acyclic graph(DAG) structure, is vulnerable to double-spending attacks. To mitigate this risk,we propose a countermeasure employing zero-determinant(ZD) strategies to encourage honest transactions among nodes.First, we analyze the game-theoretic interactions between the IOTA committee and nodes, modeling them as an iterated prisoner's dilemma and deriving the conditions under which this dilemma holds. Next, we explore the conditions under which the IOTA committee can adopt ZD strategies, demonstrating the feasibility of unilaterally controlling node payoffs.Finally, theoretical analysis and experimental validation confirm the effectiveness of the proposed countermeasure, offering a novel game-theoretic solution for enhancing IOTA's security.
文摘The relatively high percentage of people with disabilities in Europe combined with the facts of ageing population, strong relation of impairment to age, and as State of the Art shows, dissatisfaction or even unawareness of people with disabilities of available assistive technology are revealing the necessity to incorporate a user-centric approach that beyond 2nd generation practices will achieve to provide embedded and built-in accessibility solutions, as well as toolkits for developers, for ＂engraving＂ accessibility in existing and emerging mass-market ICT-based products, aiming to make accessibility open, plug and play, personalised and configurable, realistic and applicable in various contexts, keeping always the user in the loop. The AEGIS （Accessibility Everywhere： Groundwork, Infrastructure, Standards） IP （Integrated Project） of the 7th European Framework Programme seeks to determine whether 3rd generation access techniques will provide a more accessible, more exploitable and deeply embeddable approach in mainstream ICT （information and communication technologies）. This paper presents the holistic UCD （user-centered design） implementation plan, upon which AEGIS has been based in order to achieve its targets, starting from modelling its target users, in the most efficient way possible.
文摘The form based application framework is proposed as a straight solution for E business applications. A Rapid Application Development (RAD) tool FormNet is designed for developing complex enterprise network applications. Its main features and a comparison with Microsoft Windows Forms are presented in this paper. The tool can be also perfectly applied to the government form applications.
基金supported by an award from the National Science Foundation,USA grant ECCF 1936494..
文摘In this paper,we present a Q-Learning optimization algorithm for smart home HVAC systems.The proposed algorithm combines new convex deep neural network models with model predictive control(MPC)techniques.More specifically,new input convex long short-term memory(ICLSTM)models are employed to predict dynamic states in an MPC optimal control technique integrated within a Q-Learning reinforcement learning(RL)algorithm to further improve the learned temporal behaviors of nonlinear HVAC systems.As a novel RL approach,the proposed algorithm generates day-ahead HVAC demand response(DR)signals in smart homes that optimally reduce and/or shift peak energy usage,reduce electricity costs,minimize user discomfort,and honor in a best-effort way the recommendations from utility/aggregator,which in turn has impact on the overall well being of the distribution network controlled by the aggregator.The proposed Q-Learning optimization algorithm,based on epsilon-model predictive control(e-MPC),can be implemented as a control agent that is executed by the smart house energy management(SHEM)system that we assume exists in the smart home,which can interact with the energy provider of the distribution network,i.e.,utility/aggregator,via the smart meter.The output generated by the proposed control agent represents day-ahead local DR signals in the form of temperature setpoints for the HVAC system that are found by the optimization process to lead to desired trade-offs between electricity cost and user discomfort.The proposed algorithm can be used in smart homes with passive HVAC controllers,which solely react to end-user setpoints,to transform them into smart homes with active HVAC controllers.Such systems not only respond to the preferences of the end-user but also incorporate an external control signal provided by the utility or aggregator.Simulation experiments conducted with a custom simulation tool demonstrate that the proposed optimization framework can offer significant benefits.It achieves 87%higher success rate in optimizing setpoints in the desired range,thereby resulting in up to 15%energy savings and zero temperature discomfort.
基金Work on Giobus has been supported in part by the Mathematical, Information, and Computational Sciences Division subprogram of the 0ffice of Advanced Scientific Computing Research, U.S. Department of Energy, under Contract W-31-109-Eng-38, by the National Science Foundation （NSF）＇s 0ffice of Cyberinfrastructure and other programs, and by IBM, DARPA, NASA, Microsoft, the UK Engineering and Physical Sciences Research Council and Department of Trade and Industry, and the Swedish Research Council. I report here on the work of many talented colleagues, as detailed at www.globus.org. The core team is currently based primarily at Argonne National Lab, U. Chicago, the USC Information Sciences Institute, U. Edinburgh, the Royal Institute of Technology, the National Center for Supercomputing Applications, and Univa Corporation, but many others have also contributed to Globus code, documentation, and testing, and/or made our work worthwhile by using the software.
文摘The Globus Toolkit （GT） has been developed since the late 1990s to support the development of serviceoriented distributed computing applications and infrastructures. Core GT components address, within a common framework, fundamental issues relating to security, resource access, resource management, data movement, resource discovery, and so forth. These components enable a broader ＂Globus ecosystem＂ of tools and components that build on, or interoperate with, GT functionality to provide a wide range of useful application-level functions. These tools have in turn been used to develop a wide range of both ＂Grid＂ infrastructures and distributed applications. I summarize here the principal characteristics of the recent Web Services-based GT4 release, which provides significant improvements over previous releases in terms of robustness, performance,, usability, documentation, standards compliance, and functionality. I also introduce the new ＂dev.globus＂ community development process, which allows a larger community to contribute to the development of Globus software.
基金supported in part by the National Science Foundation of USA under Grant Nos.CNS-0844983(CAREER Award)and CNS-1217979the National Natural Science Foundation of China under Grant No.61328203
文摘Modern datacenter servers hosting popular Internet services face significant and multi-facet challenges in performance and power control. The user-perceived performance is the result of a complex interaction of complex workloads in a very complex underlying system. Highly dynamic and bursty workloads of Internet services fluctuate over multiple time scales, which has a significant impact on processing and power demands of datacenter servers. High-density servers apply virtualization technology for capacity planning and system manageability. Such virtuMized computer systems are increasingly large and complex. This paper surveys representative approaches to autonomic performance and power control on virtualized servers, which control the quality of service provided by virtualized resources, improve the energy efficiency of the underlying system, and reduce the burden of complex system management from human operators. It then presents three designed self-adaptive resource management techniques based on machine learning and control for percentile-based response time assurance, non-intrusive energy-efficient performance isolation, and joint performance and power guarantee on virtualized servers. The techniques were implemented and evaluated in a testbed of virtualized servers hosting benchmark applications. Finally, two research trends are identified and discussed for sustainable cloud computing in green datacenters.
基金supported by the National Science Foundation(NSF)grant ECCF 1936494.
文摘In this paper, we present a novel cloud-based demand side management (DSM) optimization approach for the cost reduction of energy usage in heating, ventilation and air conditioning (HVAC) systems in residential homes at the district level. The proposed approach achieves optimization through scheduling of HVAC energy usage within permissible bounds set by house users. House smart home energy management (SHEM) devices are connected to the utility/aggregator via a dedicated communication network that is used to enable DSM. Each house SHEM can predict its own HVAC energy usage for the next 24 h using minimalistic deep learning (DL) prediction models. These predictions are communicated to the aggregator, which will then do day ahead optimizations using the proposed game theory (GT) algorithm. The GT model captures the interaction between aggregator and customers and identifies a solution to the GT problem that translates into HVAC energy peak shifting and peak reduction achieved by rescheduling HVAC energy usage. The found solution is communicated by the aggregator to houses SHEM devices in the form of offers via DSM signals. If customers’ SHEM devices accept the offer, then energy cost reduction will be achieved. To validate the proposed algorithm, we conduct extensive simulations with a custom simulation tool based on GridLab-D tool, which is integrated with DL prediction models and optimization libraries. Results show that HVAC energy cost can be reduced by up to 36% while indirectly also reducing the peak-to-average (PAR) and the aggregated net load by up to 9.97%.
