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1.
高炜欣 《重庆大学学报(英文版)》2005,4(1):9-14
1 Introduction An urban power system is a very important part othe power system and requires a huge investment for itconstruction and operation. This investment can bsubstantially reduced by a system approach to urbapower system planning which is not an easy task due tits dependence upon urban geography conditions. Foexample, feeder lines must be laid along urban streeUp to now, several mathematical models analgorithms have been developed to plan urban powesystem. Peponis and Papadopoulos [1]… 相似文献
2.
Redundancy Elimination in GPRS network 总被引：1，自引：0，他引：1
QIU Qin-long ZHANG Dong-mei MA Jian ZHANG Da-jiang 《浙江大学学报(A卷英文版)》2006,7(4):477-482
INTRODUCTION GPRS is a packet-switched wireless wide area network deployed worldwide (Brasche and Walke, 1997). Performance evaluation of GPRS is an active research area, especially TCP performance. The TCP mechanism will produce redundant packets in wired-and-wireless network because of the bad wireless environment; obviously, these redundant packets will harm the GPRS network performance. The paper clarifies how redundant packets are pro- duced and eliminated. We will evaluate t… 相似文献
3.
Clustering-based selective neural network ensemble 总被引：1，自引：0，他引：1
INTRODUCTION Neural network ensemble is becoming a hot spot in machine learning and data mining recently. Many researchers have shown that simply combining the output of many neural networks can generate more accurate predictions than that of any of the individual networks. Most previous work either focused on how to combine the output of multiple trained networks or how to directly design a good set of neural networks. Theoretical and empirical work showed that a good ensemble is one wh… 相似文献
4.
INTRODUCTION Research interest in immune system has in-creased over the past few years, and because of its special information processing capabilities, it has been applied to solve many problems (de Castro and Von Zuben, 1999; Hunt and Cooke, 1996). Among these research areas, network security is one of the hot spots and has been considered as analogous to im-munity in natural systems. Researchers at the Uni-versity of New Mexico did a lot of research in this area (Forrest et al., 199… 相似文献
5.
ZOU Lian-ying ZOU Xue-cheng 《浙江大学学报(A卷英文版)》2006,7(4):591-596
INTRODUCTION With the development of Ethernet systems and the growing capacity of modern silicon technology, embedded communication networks are playing an increasingly important role in embedded and safety critical systems. Advances in VLSI technology have also pushed integration to the point where it is now possible to design and implement a microprocessor and network controller on a single chip, known as System-on-Chip (SoC). In a network of embedded systems, each system can communi… 相似文献
6.
Hiro Saito 《课程研究杂志》2013,45(3):333-351
In the past, philosophers discussed cosmopolitanism as a normative ideal of allegiance to humanity as a whole. A debate among social theorists, however, has examined cosmopolitanism as an incipient empirical phenomenon: an orientation of openness to foreign others and cultures. This paper introduces actor‐network theory to elaborate the social‐theoretical conception of cosmopolitanism. In light of the actor‐network theory of cosmopolitanism, the paper proposes cosmopolitan education that aims to foster in students three dispositions: to extend attachments to foreign people and objects; to understand transnational connections in which their lives are embedded; and to act on these attachments and understandings to effect transformations across national borders. Through this three‐fold cosmopolitan education, students will grow to be citizens of the world who traverse national borders dialogically by virtue of their transnational attachments, understandings, and actions. 相似文献
7.
In this paper, we incorporated peer-to-peer (P2P) concept with agent technology and put forward a collaborative work model based on peer-to-peer network (P2PCWM) after investigating into business demands of modern enterprises and problems prevailing in mainstream collaborative work systems based on central server. Theoretically, the P2PCWM can effectively overcome the problems in a conventional system with a central server and meet the practical demands of modern businesses. It is distinguished from other systems by its features of equality, openness, promptness, fairness, expandability and convenience. 相似文献
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9.
INTRODUCTION The goal of understanding the brain and making artificial minds has propelled many scientificfields greatly. In a sense it may be the final goal othe whole science. It is impossible that one unifiedtheory will be sufficient for explaining the brain’functionality because of its unimaginable complexity. Multi-discipline combinations havebrought about so many achievements towards thigoal. Taylor (1994) introduced the “relationamind” approach in … 相似文献
10.
A neural network method to evaluate consolidation coefficient 总被引：1，自引：0，他引：1
陈建功 《重庆大学学报(英文版)》2003,2(1)
1. Introduction Settlement of soil is generally caused by load, although other causes such as lowering of the water table, vibrations and so on may also cause settlement. At the meantime, the soil volume is decreased ,so consolidation occurs. Consolidation is a time-related process involving compression, stress transfer, and water drainage. A general consolidation theory of soils should take into consideration stress and strain conditions in three dimensions. Accounting for the wide variation… 相似文献
11.
Interval standard neural network models for nonlinear systems 总被引：1，自引：0，他引：1
LIU Mei-qin 《浙江大学学报(A卷英文版)》2006,7(4):530-538
INTRODUCTION Neural networks have been successfully em- ployed for controlling nonlinear systems since the 1990’s (Narendra and Parthasarathy 1990; Hunt et al., 1992; Suykens et al., 1996). In these nonlinear control systems, neural networks have been used either for modelling the system to be controlled, or for design- ing a controller, or both. Recently, the robustness issue has been an important focus of research in neuro-control circles (Suykens et al., 1996; Wams et al., 1999; Aya… 相似文献
12.
INTRODUCTIONNASisatermusedtorefertostorageele mentsthatconnecttoanetworkandprovidefileaccessservicestocomputersystems.Incommonusage ,aNASsystemisaspecial purposedevicethatisdesignedtoservefilestoclientsoveraLAN .Therearemanybenefitsinthearchitec ture:heterogeneousfilesharing ;internalre sourcepooling;exploitationoftheexistingin frastructure;simplicityofimplementation ;con nectivity;improvedmanageability;reductionoftotalcostofownership ;andsoon .Butinprac tice,therearestillmanydrawbacks… 相似文献
13.
杨银贤 《重庆大学学报(英文版)》2005,4(1):50-54
1 Introduction Reinforcement learning is a machine learningmethod for agents to acquire the optimal policyautonomously from the environment of their behaviors.When an action is executed, the agent receives areinforcement signal by interacting with theenvironment. This technology has recently been used inmany fields, such as robot control [1], artificialintelligence [2], especially multi-agent system [3,4].Generally, when the state space of the environment issmall enough and all states can be e… 相似文献
14.
ZHANG Xiao-qiang 《重庆大学学报(英文版)》2005,4(3):175-178
A model is proposed along with empirical investigation to prove the existence of network effects in China＇s mobile telecommunications market. Futhernore, network effects on China＇s mobile telecommunications are estimated with a dynamic model. The structural parameters are identified from regression coefficients and the results are analyzed and compared with another literature. Data and estimation issues are also discussed. Conclusions are drawn that network effects are significant in China＇s mobile telecommunications market, and that ignoring network effects leads to bad policy making. 相似文献
15.
INTRODUCTION An Artificial Neural Network (ANN) is an in-formation-processing paradigm that is inspired by the way biological nervous systems, such as the brain, process information. It is composed of a large number of highly interconnected processing elements (neu-rons) working in unison to solve specific problems. In recent years, neural network has been widely applied in the field of engineering construction as a large dimensional nonlinear dynamic system, because of its support for … 相似文献
16.
This paper presents a European Community supported project which investigated whether the use of electronic and mobile technologies in the hands of young learners might engage them in learning activities and start to change their attitudes towards learning. The mLearning system was implemented in a Europe‐wide network of 14 schools with over 500 students and 46 teachers participating in the implementation. In the paper special focus is given to three different mLearning contexts/scenarios implemented within the setting of one of the Europe‐wide network of schools. mLearning in einem Europaweiten Netz von Schulen Dieses Papier präsentiert ein von der Europäische Gemeinschaft unterstütztes Projekt, das erforschen sollte, ob der Gebrauch von elektronischen und mobilen Technologien in den Händen von jungen Anfängern diese im Lernen von Aktivitäten anregen und dazu führen könnte, ihre Einstellungen zum Lernen zu ändern. Das mLearning System wurde in einem Europaweiten Netz von 14 Schulen mit mehr als 500 Schülern und 46 Lehrern durchgeführt. In diesem Papier wurde der besondere Schwerpunkt auf drei unterschiedliche mLearning Zusammenhänge/Drehbücher gelegt, die innerhalb eines der europaweiten Netze von Schulen angelegt sind. Le mLearning dans un réseau d’écoles à l’échelle européenne Cet article présente un projet soutenu par la Communauté Européenne qui a examiné si l’usage des technologies électroniques mobiles mises entre les mains de jeunes apprenants pourrait les amener à se lancer dans des activités d’apprentissage et commencer à changer leur attitude vis‐à‐vis de l’apprentissage. Ce système de m(obile)‐learning a été mis en place dans un réseau trans‐européen de 14 écoles avec une participation active de la part de plus de 500 élèves et de 46 professeurs. Dans l’article on met un accent particulier sur trois contextes/scénarios de m‐learning mis en route au sein d’un réseau transeuropéen d’écoles. El mLearning dentro de una red paneuropea de escuelas Este artículo presenta un proyecto apoyado por la Comunidad Europea en el cual se investigó si el uso de tecnologías electrónicas y móviles por parte de jóvenes alumnos pudiera conducirles a lanzarse a actividades de aprendizaje y empezar a cambiar su actitud con respecto al aprendizaje. Este sistema de m‐learning fue aplicado dentro de una red transeuropea que incluye 14 escuelas con más de de 500 alumnos y 46 profesores participando en la aplicación. El artículo hace hincapie en tres diferentes contextos/guiones de mLearning aplicados dentro de una de las redes transeuropeas de escuelas. 相似文献
17.
WANG Ying LI Bing XIE Bai-zhi 《美中教育评论》2007,4(9):53-57
Research-oriented learning mode that based on network is significant to cultivate comprehensive-developing innovative person with network teaching in education for all-around development. This paper establishes a research-oriented learning mode by aiming at the problems existing in research-oriented learning based on network environment, and combining the characteristics of network learning in China. This paper also analyses learning-objective orientation and the choice of learning evaluation. Based on the foregoing, the paper brings forward the consideration of the further task. 相似文献
18.
张小强 《重庆大学学报(英文版)》2005,(3)
1 Introduction 1 Both economic literature and legal literature have focused a great deal of attention on the phenomenon of network effects, or network externalities: “markets in which the value that consumers place on a good increases as others use the good.”[1] Network effects have important implications for structure and competitiveness of underlying market, as well as for regulation policy making. In China, theoretical developments of the concept have been introduced, but it still remains… 相似文献
19.
LIU Jiao-min FAN Tong-rang TONG Kuan-zhang 《浙江大学学报(A卷英文版)》2007,8(3):464-468
With the current development trend of Ethernet gradually towards the control network of plant-floor layer and devices layer, much management information on Intelligent Circuit Breaker Controller (ICBC) is becoming distributed and networked. This paper describes a mixing structure of complex industrial field control network based on Ethernet frame, then mainly discusses three network management methods of ICBC, such as the interconnection method based on PCI, embedded gateway and em- bedded Web server. At the same time, it also gives the basic hardware framework of implementing interconnection, the type of main components, and the real-time operation system supporting the embedded TCP/IP protocols and Web server. 相似文献
20.
INTRODUCTIONAgoodsearchschemeisacriticalcompo nentinpeer to peernetwork .Aneffectivesearchschemeshouldhavegoodscalability ,highsearchefficiency ,goodpeerfailuretoler anceandsupporttokeywordpartial match .Existingsearchingschemescanbeclassifiedintothreecat… 相似文献