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GCIS, WRI Global Congress on Intelligent Systems

作者： Sheng Chen Yu Ying Hu Gui Xian Yu Xu Ling Jin Li Nang Zhang Tie Jun Shao Computer Science Department North China University of Science and Technology Beijing China Computer Science Department of North China University of Science & Technology Beijing China Beijing Zhao Fang Investment Trust Co. Ltd. Beijing China Science College Beijing University of Civil Engineering and Architecture Beijing China Beijing Information Science & Technology University Beijing China

In order to improve the detection rate of T wave, and to solve the problem that the back propagate neural network (BPNN) is invalid when these initial weight and threshold values of BP neural network are chosen impertinently (Objective), Genetic Algorithms (GA)'s characteristic of getting whole optimization value was combined with BP's characteristic of getting local precision value with gradient method. After getting an approximation of whole optimization value of weight and threshold values of BP NN by GA, the approximation was used as first parameter of BP neural network, to train (educate) the BPNN again (in other words, learning). The educated BPNN was used to recognize T wave of electrocardiogram (ECG). In order to improve the detection rate of T wave ,making full use of the character that multi-scales changing rules of Wavelet Transform (WT)'s mould max value pairs can indicate signal break points, combining with body physiology synthesis strategy practice, T wave in ECG signal was detected. At the same time, with the help of the educated BP neural network, T wave was confirmed (Methods). Experiment results shown that this method was useful and applicable, and the detection right rate of T wave was above 98% for the MIT database (Results). It is concluded that the combination (WT, GA, BPNN) makes BP neural network to recognition T wave better (Conclusions).

关键词： Gallium Artificial neural networks Communities Gradient methods Wavelet transforms Electrocardiography Training

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The Design and Implementation of a Mobile Location-Aware Digital Signage System

The Design and Implementation of a Mobile Location-Aware Dig...

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International Conference on Mobile Ad-hoc and Sensor Networks, MSN

作者： Kun-Ming Yu Cheng-Yan Yu Bo-Han Yeh Ching-Hsien Hsu Hung-Nien Hsieh Department of Computer Science and Information Engineering Chung Hua University Taiwan Ph.D. Program of Technology Management Chung Hua University Taiwan Department of Architecture and Urban Planning Chung Hua University Taiwan

The worldwide Digital Signage market has been getting increasingly popular in recent years. Nevertheless, for service providers, the Digital Signage business is still not easy to manage and time-consuming to operate. In this paper, based on the GPS and wireless infrastructure, we present a mobile location-aware digital signage system (LDSS). Through the centralized system architecture, the applications for the Digital Signage can be expanded to various advertising vehicles including buses and other mobile advertising vehicles. Also, we present an advertisement recommendation algorithm, by which the advertisement can be broadcasted in the right markets more effectively. Evidenced by simulated experiments and analysis, compared with traditional region trigger advertising, sequential advertising and random advertising, our advertisement recommendation algorithm can effectively reach to the key target audiences in planned regions, while show excellent ability to differentiate markets in unplanned regions reaching to the target consumer groups as well.

关键词： Advertising Mobile communication Vehicles Decision support systems Mobile handsets Business Wireless communication

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Security management under uncertainty: From day-ahead planning to intraday operation

Security management under uncertainty: From day-ahead planni...

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iREP Symposium on Bulk Power System Dynamics and Control

作者： P. Panciatici Y. Hassaine S. Fliscounakis L. Platbrood M. Ortega-Vazquez J.L. Martinez-Ramos L. Wehenkel R&D Department RTE Versailles France TRACTEBEL Energy Engineering Brussels Belgium Department of Electrical Engineering University of Manchester Institute of Science and Technology UK Department of Electrical Engineering University of Seville Spain Department of Electrical Engineering and Computer Science University of Liège Belgium

In this paper, we propose to analyse the practical task of dealing with uncertainty for security management by Transmission System Operators in the context of day-ahead planning and intraday operation. We propose a general but very abstract formalization of this task in the form of a three-stage decision making problem under uncertainties in the min-max framework, where the three stages of decision making correspond respectively to operation planning, preventive control in operation, and post-contingency emergency control. We then consider algorithmic solutions for addressing this problem in the practical context of large scale power systems by proposing a bi-level linear programming formulation adapted to the case where security is constrained by power flow limits. This formulation is illustrated on two case studies corresponding respectively to a synthetic 7-bus system and the IEEE 30-bus system.

关键词： Uncertainty Security Mathematical model Planning Optimization Decision making Equations

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A new parallel scheduling system for multiple radio wireless mesh network

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中国高等学校学术文摘·计算机科学 2009年第4期3卷 550-559页

作者： Yun HU Shoubao YANG Qi ZHANG Dapeng WANG Qinwei SHEN Department of Computer Science University of Science and Technology of ChinaHefei 230026China Department of Computer Science University of Science and Technology of ChinaHefei 230026China Department of Computer Engineering Anhui University of ArchitectureHefei 230022China

To enhance the capacity of wireless mesh networks,a key technique is widely investigated which is the usage of multi-radio and multi-channel *** this paper,a new parallel scheduling system is proposed which exploits MAC diversities by transmitting packets on the radios *** with conventional packet transmission which follows 'one flow one radio',the new system uses radio diversity to transmit the packets on different radios *** kernel components of this system are selection module and schedule module.A localized selecting algorithm is implemented in the selection model to choose the right radios based on the quality of wireless links; two distributed packet-scheduling algorithms are optional with the schedule ***,a routing metric adapting this system is *** have carried out a comprehensive performance evaluation of this system using *** results show that it can successfully harness diversity of multi-radio and multi-channel to provide considerable improvements over a baseline multi-channel system in several situations.

关键词： wireless mesh network diversity parallel scheduling algorithm

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A park transform-based method for condition monitoring of three-phase electromechanical systems

A park transform-based method for condition monitoring of th...

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5th IET International Conference on Power Electronics, Machines and Drives (PEMD 2010)

作者： Christopher Laughman Steven B. Leeb Leslie K. Norford Steven R. Shaw Peter R. Armstrong Mitsubishi Electric Research Laboratories Inc. Cambridge MA USA Department of Electrical Engineering and Computer Science Massachusetts Institute of Technology Cambridge MA USA Department of Architecture Massachusetts Institute of Technology Cambridge MA USA Department of Electrical and Computer Engineering Montana State University Bozemon MT USA Masdar Institute of Science and Technology Abu Dhabi United Arab Emirates

This paper presents a Park transform-based method for preprocessing stator current data from a motor and transforming it into a form that is useful for fault detection and diagnostics. The proposed method generates power signatures that are invariant to the initial electrical angle of the voltage when the motor is connected to the utility, and can also adapt to variations in the electrical angle of the supply voltage over time. A modified nonlinear least squares algorithm identifies and tracks the parameters of the supply voltage over time, ensuring that the supply voltage and the argument of the Park transformation remain synchronized. Experimental results are presented that illustrate the method's effectiveness for identifying changes in the mechanical load on a 3/4 HP refrigeration compressor.

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Pricing of multi-energy network flow

Pricing of multi-energy network flow

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IEEE International Energy Conference and Exhibition (EnergyCon)

作者： Matthias Schulze Goran Gašparović Jieun Lee High Voltage Laboratory Swiss Federal Institute of Technology Zurich Switzerland Faculty of Electrical Engineering and Naval Architecture Mechanical Engineering University of Split Split Croatia Department of Computer Science Korea Advanced Institute of Science and Technology Daejeon South Korea

The network model bases upon the energy hub concept, which was developed by the Vision of Future Energy Networks” (VoFEN) research group at ETH Zurich in the last years. Keynote of the concept is a combined optimization of different energy carrier. Synergetic effects are expected to give unusual optimization results, when allowing any possible energy conversion inside a specific area that constitute the hub. Costs for the energy consumption or production are generally used as the optimization criteria. Any technologies for conversion and storage are integrated in a coupling matrix, which links input and output. This paper deals with an extension to the optimization part by merging the network flows with the pricing of grid costs. The impact of network flow pricing is at first derived from theory, then translated into the energy hub concept and finally illustrated in an example.

关键词： Electricity Optimization Resistance heating Mathematical model Smart grids Equations

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Method of extracting weak signals from strong disturbance field in coal mineral well based on wavelet transform

Method of extracting weak signals from strong disturbance fi...

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IITA International Conference on Geoscience and Remote Sensing (IITA-GRS)

作者： Sheng chen Yu Zi qiang Zhao Gui xiang Yu Xu ling Jin Yu bin Chen Wen hao Zhou Computer Science Department of North China University of Science and Technology Beijing China Computer Science Department of North China University of Science & Techno!ogy Beijing China Beijing Zhao Fang Investment Trust Co. Ltd. Beijing China Science College Beijing University of Civil Engineering and Architecture Beijing China Shanxi Luan Good-Environment Energy Co. Ltd Chanzhi Shanxi China

Disturbance fields in the coal mineral well give a so serious problem on the work of general electric investigation that sometime process of observing useful signal cannot be finished. For extracting weak effective signals from strong disturbance field in coal mineral well, original measured signals are decomposed by wavelet transform and Mallet algorithm, and the weak effective signals are extracted successfully. Experimental results show that the approach method is feasible and efficient.

关键词： Wavelet transforms Voltage measurement Minerals Signal resolution Spline Image resolution

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ePAL roadmap for active ageing

ePAL roadmap for active ageing

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International Conference on Pervasive Computing Technologies for Healthcare, PervasiveHealth

作者： Luis M. Camarinha-Matos Antonio del Cura Hamideh Afsarmanesh Jim Playfoot Faculty of Sciences and Technology & UNINOVA Universidade Nova de Lisboa Monte da Caparica Portugal Computer Science Department University of Amsterdam Amsterdam Netherlands SKILL Estrategia SA Seville Spain White Loop Limited London UK

Active ageing, through a balanced combination of leisure and social interaction with continued work involvement, is central to meeting older citizens expectations, and maintaining their mental and physical health. Application of the collaborative networks paradigm, and the new generation of collaboration-support platforms and tools, can offer a promising approach to supporting active ageing, and can facilitate better use of the talents and potential of retired or retiring senior professionals. This paper introduces the results of a roadmapping initiative addressing the implementation of a new vision for extending professional active life. To support this vision, a strategic research plan for the development of a new digital ecosystem, covering the social, organizational, and technological perspectives, is proposed. A large number of stakeholders coming from different backgrounds have contributed to the design and validation of this roadmap.

关键词： Aging Collaborative work Senior citizens Retirement Costs computer science Collaborative tools Ecosystems Silver Portfolios

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Evaluation of electro-oculography data for ataxia SCA-2 classification: A blind source separation approach

Evaluation of electro-oculography data for ataxia SCA-2 clas...

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International Conference on Intelligent Systems Design and Applications (ISDA)

作者： Rodolfo García-Bermúdez Fernando Rojas Ruiz Jesús González Peñalver Olga Valenzuela Cansino Luis Velázquez Pérez Cira Torres Roberto Becerra-García Department of Networks University of Holguin Oscar Lucero Moya Holguin Cuba Department of Networks University of Holguin “Oscar Lucero Moya” Granada Spain Center of the Research and Rehabilitation of Hereditary Holguin Cuba Center for the Research and Rehabilitation of Hereditary Ataxias Holguin Cuba Computer Architecture and Technology Department University of Granada Spain Computer Science Faculty University of Holguin “Oscar Lucero Moya” Holguin Cuba

Spino Cerebellar Ataxia type 2 is an autosomal dominant cerebellar hereditary ataxia with the highest prevalence in Cuba. Typical symptoms in patients of SCA2 ataxia include modifications in latency, peak velocity, and deviation in visual saccadic movements. After applying some electro-oculography based tests to both healthy and SCA2 afflicted individuals, differences in saccade morphology were found, mainly for 60° of stimulus amplitude. In this work, independent component analysis (ICA) is used to decompose the pulse and step components for the control of saccadic ocular movements, finding significant differences in time and amplitude ratio of both components. The obtained results point out the validity of the proposed methodology in order to study the effects of ataxia SCA2 in the oculomotor system.

关键词： Electrooculography Independent component analysis Classification algorithms Nervous system Visualization Blind source separation Algorithm design and analysis

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Rule Generating of Rough Sets Based on Bayesian Theory

Rule Generating of Rough Sets Based on Bayesian Theory

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International Conference on Intelligent System Design and Engineering Application (ISDEA)

作者： Jiaming Ding Lixing Ding Zhuoping Ding Yonghe Wang School of Civil Engineering Tsinghua University Beijing P R China Institute of Built Environment and Control Zhongkai University of Agriculture and Engineering Guangzhou P R China Department of Computer Hunan Institute of Science and Technology Yueyang P R China School of Civil Engineering and Architecture Central South University Changsha P R China

The generating rule method is presented for incompatible and incomplete information of test data based on Bayesian theory. Firstly, the rule's conditional probability is calculated when the certainty (reliability) of the test data is the prior probability and the samples (supportability) is posterior probability. Then, Those rules whose conditional probability is bigger than a given threshold value should be preserved. Lastly, the rule is generated by logic conjunction and disjunction of all the preserved rules. The example and application analysis indicate that the algorithm is clear, the calculating process is simple and it can be easily applied to computer programs, moreover, this method can avoid the knowledge distortion and the rule losing to the maximum for generating rule.

关键词： Rough sets Bayesian methods Indexes computers Soil

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