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Wearable Computing Systems (APWCS), 2010 Asia-Pacific Conference on

Date 17-18 April 2010

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Displaying Results 1 - 25 of 114
  • [Front cover]

    Publication Year: 2010 , Page(s): C1
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  • [Title page i]

    Publication Year: 2010 , Page(s): i
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  • [Title page iii]

    Publication Year: 2010 , Page(s): iii
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  • [Copyright notice]

    Publication Year: 2010 , Page(s): iv
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  • Table of contents

    Publication Year: 2010 , Page(s): v - xi
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  • Message from Publication Chair

    Publication Year: 2010 , Page(s): xii
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  • Organizing Committee

    Publication Year: 2010 , Page(s): xiii
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  • list-reviewer

    Publication Year: 2010 , Page(s): xiv
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  • Application of Support Vector Machine to Cognitive Diagnosis

    Publication Year: 2010 , Page(s): 3 - 6
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (541 KB) |  | HTML iconHTML  

    Support Vector Machine (SVM) is applied to the modern educational measurement's diagnostic classification of 0,1 scoring test, and then comparisons of the classification results with some of the typical cognitive diagnostic classification are made. The results show that using SVM to cognitive diagnostic classification, which only needs a small sample for training, can ensure a high correct classification rate, while required short time to run. This advantage suggests that SVM could be employed to identify attributes behind in items to reduce the labor strength. Experiments show high precision and certain feasibility. View full abstract»

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  • The Research of influence on the Positioning and Extention of Brand Benefits by Emotional Value at the Age of Economic Crisis

    Publication Year: 2010 , Page(s): 7 - 11
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (553 KB) |  | HTML iconHTML  

    The positioning of brand benefit is the traditional compulsory subject of entering market. This paper, breaking through and extending the traditional positioning thought, combining present market characteristics, enclosing emotion value, discuss the emotion of the decision motive, brand, function and service which are emerged in the course of positioning of brand benefit by using factor analysis and SEM model. Empirical research results show that emotion value which needs to be taken into consideration has positive relationship with the brand benefit strongly. View full abstract»

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  • Test Construction for Cognitive Diagnosis

    Publication Year: 2010 , Page(s): 12 - 15
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (583 KB) |  | HTML iconHTML  

    Traditional test only provides a total score and computer adaptive test (CAT) not only provides examinee's score but also estimates examinee's ability. However, both two methods have not studied students' knowledge states. Cognitive diagnostic assessment (CDA) is designed to measure specific knowledge structures and processing skills in students so as to provide information about their cognitive strengths and weaknesses. A good diagnostic test is one that goes beyond estimation of individuals' overall ability levels. How to combine an attribute hierarchy and the reachability matrix with Henson and Douglas's item selection strategy to construct an effective test for cognitive diagnosis in order to improve the accuracy is discussed in this paper. When compared to randomly constructed tests from the same item bank, classification rates are improved significantly. View full abstract»

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  • DSP-Controlled Three-Phase Brushless DC Motor-Driven Power System for Electric Vehicle

    Publication Year: 2010 , Page(s): 16 - 19
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (646 KB) |  | HTML iconHTML  

    This article highlights the Nanchang University, Chang-Da on the 1st series and parallel using a group of 3.3V Li-ion battery boxes made of 288V, to a three-phase brushless DC motor to drive, and by TMS320LF2407A DSP to control the PWM output, and then adopted by the IGBT device composed of three-phase full-bridge circuit to drive the brushless DC motor speed, thus ensuring the motor speed control requirements, and also designed a by TL431, PC817, HCPL316J, UC3844, LT1117 chips such as the composition of the DC / DC conversion.Through this circuit, you can accurately get the output of ±12V, ±15V, ±9V and 3.3V voltage, so that the these voltages can give electric cars the various electronic devices, as well as DSP power to maintain the normal operation of electric vehicles by Chang Da on the 1st successful development of electric vehicles, indicating the reliability of the design. View full abstract»

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  • The Risk Assessment of Bank Based on Multiple Correlation Analysis and Three-Valued Logic Neuron Model

    Publication Year: 2010 , Page(s): 20 - 23
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (537 KB) |  | HTML iconHTML  

    Most of questions have the uncertainty and the illegibility. Taking account of the insufficiency of two value logic neuron, the paper puts forward three-valued logic neural network, based on the multiple correlation analysis, which have been successfully used in the bank risk assessment. The paper, firstly has constructed the multiple correlation model. Secondly, puts forward the three-valued logic neural network and explains its basic operations such as inference rules. Finally, combining of the bank risk assessment and using the multiple correlation analysis and has determined the evaluation index and constructed an assessment of the neural network model. The result indicates that this model can be used in three-valued connection rules to realize three-valued logic reasoning. This has provided one powerful method for the uncertainty knowledge's expression and the inference. View full abstract»

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  • Finding Global Minima with a Computable Quasi-filled Function for Constrained Global Optimization

    Publication Year: 2010 , Page(s): 24 - 27
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (606 KB) |  | HTML iconHTML  

    A novel quasi-filled function approach is proposed in this paper for a constrained global minimization problem. Firstly, the definition of quasi-filled function is given, a quasi-filled function is constructed, and then a quasi-filled function algorithm is proposed. The constructed function contains two parameters and they can be easily adjusted during implementation of the quasi-filled function algorithm. And at last, a numerical test is made. The preliminary computational results demonstrate the efficiency of the proposed quasi-filled function approach. View full abstract»

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  • Adaptive Synchronization of Generalized Lorenz Systems with Unknown Parameters

    Publication Year: 2010 , Page(s): 28 - 31
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (540 KB) |  | HTML iconHTML  

    The generalized Lorenz system contains a class of three-dimensional autonomous quadratic chaotic systems, which include Lorenz system, Chen system, Lü system and unified chaotic system. In this paper, an adaptive controller for the synchronization of two generalized Lorenz systems is designed by utilizing Lyapunov method, in that the parameters of the drive system are unknown and different from those of the response system. Simulation results also verify the effectiveness of the proposed control scheme. View full abstract»

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  • A New Architecture of Online Trading Platform Based on Cloud Computing

    Publication Year: 2010 , Page(s): 32 - 35
    Cited by:  Papers (1)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (560 KB) |  | HTML iconHTML  

    Along with the development of grid computing and cloud computing, finite computing resources supplied by stand-alone server usually become the bottleneck in the process of system implementation of online trading platform. Moreover, It is difficult to reuse algorithm module and the system also becomes more complicated to achieve. Traditional online trading framework can not preferably solve the problem listed above. Thus, we propose a framework of online trading platform based on cloud computing. It is feasible to establish a high-complexity online trading platform using infinite virtual computing capability provided by cloud computing. Simultaneously, this framework can realize the sharing of data sets after the integration of heterogeneous and distributed data based on layered thoughtway, and supply theoretical foundation and framework support for setting up a unified, open, distributed, and parallel online trading platform. View full abstract»

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  • Design of Paper Duplicate Detection System Based on Lucene

    Publication Year: 2010 , Page(s): 36 - 39
    Cited by:  Papers (3)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (940 KB) |  | HTML iconHTML  

    Full-text retrieval is a very popular technology in recent information search area. Lucene is an open-source full-text search engine toolkit, and has excellent system architecture and wide application foreground. Based on paper duplicate detection system research, we introduce Lucene theory and analyze two pivotal work steps of Lucene which are index creation module and index search module. We describe the paper duplicate detection system design and implementation, and discuss key technology of highlight and combination of B/S mode and C/S mode. We provide excellent solution for similar system development. View full abstract»

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  • Intelligent Diagnosis Techniques in Automotive Engines Fault Based on Fuzzy Support Vector Machine

    Publication Year: 2010 , Page(s): 40 - 43
    Cited by:  Papers (1)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (576 KB) |  | HTML iconHTML  

    The fault reasoning and diagnosis are carried out by means of analysis on the contents of CO, HC, CO2 and O2 in the exhaust gas discharged from gasoline engine. The support vector machine is applied to fault diagnosis of the exhaust gas discharged from gasoline engine. Taken the fault data recorded the exhaust gas discharged from gasoline engine as the sample sets, part of the fault data of the exhaust gas is studied, by use of classification machine. The calculation results show that the average accuracy of the fault diagnosis could reach about 95% with fuzzy support vector machine. View full abstract»

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  • Accelerometer Based Transportation Mode Recognition on Mobile Phones

    Publication Year: 2010 , Page(s): 44 - 46
    Cited by:  Papers (13)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (523 KB) |  | HTML iconHTML  

    Recognizing the transportation modes of people's daily living is an important research issue in the pervasive computing. Prior research in this field mainly uses Global Positioning System (GPS), Global System for Mobile Communications (GSM) or their combination with accelerometer to recognize transportation modes, such as walking, driving, etc. In this paper, we will introduce transportation mode recognition on mobile phones only using embedded accelerometer. In order to deal with uncertainty of position and orientation of mobile phone, acceleration synthesization based method and acceleration decomposition based method are introduced. Performance comparison indicates that acceleration synthesization based method outperforms acceleration decomposition based method. We will discuss the factors affect the recognition accuracy of acceleration decomposition based method and present potential improvements. View full abstract»

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  • Application of Stochastic Modeling Technology to the Sha26 Block in Shanian Oilfield

    Publication Year: 2010 , Page(s): 47 - 50
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (799 KB) |  | HTML iconHTML  

    Shanian oilfield is constituted by a number of complex fault-blocks, after nearly 10 years of waterflooding development, the relation between oil and water underground reservoirs is complex. In this case, it is difficult to predict accurately the distribution of inter-well reservoir parameters and the rich region of residual oil. Thus it is an emphasis to build a fine reservoir model, as available knowledge is limited about reservoir geometries, variogram based on stochastic modeling can be an appropriate method, where it is possible to acknowledge trends, reservoir direction continuity, facies fractions and heterogeneity of physical property. This paper puts the seismic, well logging, geological and develop dynamic research results all together, and focus a variety of stochastic modeling methods to achieve facies-controlled property modeling, ensuring the three-dimensional quantitative geological model reasonable. View full abstract»

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  • Numerical investigation of the Different Casing Treatment in a Centrifugal Compressor

    Publication Year: 2010 , Page(s): 51 - 54
    Cited by:  Patents (5)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (4653 KB) |  | HTML iconHTML  

    The casing treatments have the potential to extent the operating range of centrifugal compressor. To research performance verify of the high speed centrifugal compressor between the different conditions with the different casing treatments and with untreated smooth wall. The time accurate 3-dimentional numerical simulations are performed in a high speed centrifugal compressor with the different casing treatments. The different tip flow topologies of blades and the variety of the secondary flow vortex are detailed analyses between these two casing treatments configurations. It is concluded that the major reason of the Mechanism of Stall Margin Improvement is restrained the tip leakage vortex. View full abstract»

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  • Performance Analysis of Low Power Null Convention Logic Units with Power Cutoff

    Publication Year: 2010 , Page(s): 55 - 58
    Cited by:  Papers (4)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (598 KB) |  | HTML iconHTML  

    Null convention logic units are the most important logic units in asynchronous circuits. This paper proposes a new realization of null convention logic unit based on semi-static threshold gates. Through adding a cutoff transistor into the pull-up path, the leakage current can be greatly decreased, which can resolve the issue of leakage current increment in deep submicron technology. Comparisons are made on delay, area, power consumption as well as working speed with the conventional logic units. One bit asynchronous adder and basic gates are realized based on the proposed null convention logic unit and comparisons are made on performance and power consumption. Results have shown that the new null convention logic unit has significant decrements in dynamic and static power consumption. Dynamic power consumption of TH33 gate has decreased by 13.6%, and 72.9% to the static power consumption. The newly design proposal can satisfy the requirement of low power asynchronous design. View full abstract»

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  • Thick Film Integrated Circuit Design of Multi-measurement Module

    Publication Year: 2010 , Page(s): 59 - 62
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (589 KB) |  | HTML iconHTML  

    This paper introduces a kind of Thick film integrated circuit design of multi-measurement module. The thick film integrated circuit improves many inadequacies of traditional single signal collecting system, like various spices, poor generality, inconvenient debug and maintenance etc. It realizes the measurement of various signals like voltage, current, thermocouple, resistance, frequency etc, and the measuring accuracy is up to 0.2%-0.3%. As a component, the integrated circuit is applied to front-end design of the instrument. It can guarantee high reliability, high accuracy and high level of integration of the system front-end design. So it can solve the problems of traditional design, like heavy workload, long development cycle etc. View full abstract»

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  • Intelligent Firearms Management System Design

    Publication Year: 2010 , Page(s): 63 - 65
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (564 KB) |  | HTML iconHTML  

    Police-using firearms management aim to effectively monitor and manage the following links about firearms, saving, in or out of storage, transportation, using, carrying, recycling etc. This paper introduces a kind of design and realization of master-slave firearms management system based on RS-485 bus technology. This system uses the network system with half-duplex and multi-computer communication between the master machine and the slave machine. The core controller of the master machine is ARM, and that of the slave machine is 51 series microcontroller. After client (slave machine) polls the port state, transmit the real time data sampled by RS-485 bus to the server (master machine). Through server processing, display the reference information of firearms with LCD. In addition, users can real-time get the current information of firearms by logging on the server through the Ethernet. This system realizes remote data sampling and controlling between server (master machine) and client (slave machine). View full abstract»

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  • A Solution of LED Large Screen Display Based on Wireless Communication

    Publication Year: 2010 , Page(s): 66 - 69
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (556 KB) |  | HTML iconHTML  

    Display information of some LED large screen displays such as mobile offline LED display, bus LED display, can not be transmitted easily or directly from control PC for the limitation, inconvenient installation of communication wire. The paper gives methods for the combination of LED large screen display control technology and wireless data transmission technology, laying emphasis on the realization method of wireless display data transmission, presenting dual RAM buffer structure and ping-pong control circuit to realize the storage of display data, presenting display data scanning interface to enhance the driver capability of scanning signals. The solution makes display information configuration flexible and reduce the inconvenience due to the reasons such as inconvenient installation of communication wire. View full abstract»

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