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2010 3rd IEEE International Conference on computer science and Information Technology—ICCSIT 2010

作者： Seyed Reza Shahamiri Wan Mohd Nasir Wan Kadir Suhaimi bin Ibrahim Department of Software Engineering Faculty of Computer Science and Information System Uneversiti Teknologi Malaysia Skudai Malaysia

Decision-making structures are important building blocks in most of the software;however, it may be difficult to verify them because there are various input conditions and several paths causing them to behave differently. Test oracles are reliable sources of how the software must operate. The aim of the present paper is to study the applications of Artificial Neural Networks as an automated oracle to test decision-making structures. First, the decision rules were modeled by the neural network using a training dataset generated based on the software specifications and domain expert knowledge. Next, after the neural network was applied to test a subjectregistration application, the proposed approach was evaluated using mutation testing. The accuracy of the resulted oracle is discussed as well.

关键词： automated software testing test oracles decision making structures artificial neural networks, mutation testing

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Error Correction on IRIS Biometric Template Using Reed Solomon Codes

Error Correction on IRIS Biometric Template Using Reed Solom...

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Asia International Conference on Modeling & Simulation

作者： Sim Hiew Moi Puteh Saad Nazeema Abd Rahim Subariah Ibrahim Department of Software Engineering Faculty of Computer Science And Information System Universiti Teknologi Malaysia Johor Malaysia

ISBN: (纸本)9781424471966

Pin number or password that is used for authentication can be easily attacked. This limitation triggered the utilization of biometric for secured transactions. Biometric is unique to each individual and is reliable. Among the types of biometric being used currently, iris is the most accurate and it remains stable throughout a person's life. However the major challenge on iris and other biometric for authentication is the intra user variability in the acquired identifiers. Iris of the same person captured at different time may differ due to the signal noise of the iris camera. Traditional cryptography method is unable to encrypt and store biometric template, then perform the matching directly. Minor changes in the bits of the feature set extracted from the iris may lead to a huge difference in the results of the encrypted feature. In our approach, an iris biometric template is secured using iris biometric and passwords. Error Correction Code, ECC is introduced to reduce the variability and noise of the iris data. Experimental results show that this approach can assure a higher security with a low false rejection or false acceptance rate. The successful iris recognition rate using this approach is up to 97%.

关键词： Error correction codes Iris Biometrics Reed-Solomon codes Authentication Cameras Feature extraction Data mining Elliptic curve cryptography Noise reduction

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Speech segmentation using divergence algorithm with Zero Crossing property

Speech segmentation using divergence algorithm with Zero Cro...

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International Conference on computer and Information Technology (ICCIT)

作者： M.S Salam Dzulkifli Mohamad S.H Salleh Faculty of Computer Science and Information System Universiti Teknologi Malaysia Malaysia Faculty of Biomedical Engineering and Health Science Universiti Teknologi Malaysia Malaysia

Divergence algorithm is a statistical segmentation approach which finds segmentation point via detection of abrupt changes without any previous information of the acoustic signal. The approach could get high match of segmentation but also gives a lot of false segmentation points. This work introduced a property based on the usage of Zero Crossing Rate (ZCR) in enhancing segmentation by divergence algorithm. The work starts via optimizing divergence algorithm segmentation performance via parameters tuning. Then the proposed property based on ZCR is applied to divergence algorithm to reduce insertion points. The results of tuning divergence parameters achieved match rate of 99.4% at time tolerance of 0.09 seconds with 69% insertion rate occurrences in comparisons to reference points. The result in applying the introduced ZCR property to divergence algorithm shows that tuning of some ZCR property parameters could reduce insertion between 4% to 45%. However, it would also reduce the match rate. Nevertheless, the method could reduced insertion rate by 5.5% while maintaining match rate of 99.4%.

关键词： Speech Tuning Speech processing Statistical analysis Acoustics Speech recognition Humans

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Hiding data in video file: An overview

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Journal of Applied sciences 2010年第15期10卷 1644-1649页

作者： Al-Frajat, A.K. Jalab, H.A. Kasirun, Z.M. Zaidan, A.A. Zaidan, B.B. Department of Software Engineering Faculty of Computer Science and Information Technology University Malaya 50603 Kuala Lumpur Malaysia Department of Computer System and Technology Faculty of Engineering Multimedia University Jalan Multimedia 63100 Cyberjaya Malaysia

The aim of this review is to study the methods of steganography using the video file as a cover carrier. The steganography is the art of protecting the information through embedding data in medium carrier, for instants this study illustrate historically this art, as well as the study describes methods as a review for this art in the video file. The video based steganography can be used as one video file, separated images in frames or images and audio files. Since that, the use of the video based steganography can be more eligible than other multimedia files. As a result of this study, the video based steganography has been discussed and the advantages of using the video file as a cover carrier for steganography have been proposed. © 2010 Asian Network for Scientific Information.

关键词： Steganography

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Robust environment perception based on occupancy grid maps for autonomous vehicle

Robust environment perception based on occupancy grid maps f...

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SICE Annual Conference

作者： Naoki Suganuma Toshiki Matsui Institute of Science and Engineering Kanazawa University Kanazawa Ishikawa Japan Faculty of Computer Science and System Engineering Okayama Prefectural University Okayama Japan

ISBN: (纸本)9781424476428

For a purposes of reduction of driving workload, traffic accidents, and so on, autonomous vehicle systems, which can drive even though no human driver rides on, have been developed all over the world. Recently, it is considered that a part of such techniques play an important roll to energy saving. To navigate the autonomous vehicle in a complex environment, it is necessary to extract static objects precisely and robustly. Moreover, about dynamic objects, it is not enough to consider its existing position, and it is considered that estimating its motion and predicting its future position are strongly demanded. In this paper, for a solution of such problems, we propose an environment perception method using a LIDAR based on Occupancy Grid Maps.

关键词： Laser radar Vehicles Vehicle dynamics Dynamics Mobile robots Robustness Navigation

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Revisiting energy-based swing-up control for the Pendubot

Revisiting energy-based swing-up control for the Pendubot

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IEEE Conference on Control Technology and Applications (CCTA)

作者： Xin Xin Seiji Tanaka Jin-Hua She Taiga Yamasaki Faculty of Computer Science and System Engineering Okayama Prefectural University Okayama Japan School of Computer Science Tokyo University of Technology Hachioji Tokyo Japan

In this paper, we revisit the energy-based swing-up control for the Pendubot, a two-link underactuated planar robot with a single actuator at the base joint (shoulder). Different from previous energy-based control solutions, we obtain the following results: 1) we provide a bigger control parameter region for achieving the control objective. Specifically, we present a necessary and sufficient condition for avoiding the singular points in the control law. We obtain a necessary and sufficient condition on the control parameters such that the up-down equilibrium point (at which links 1 and 2 are in the upright and downward positions, respectively) is the only undesired closed-loop equilibrium point. 2) We prove that the up-down equilibrium point is saddle (hyperbolic and unstable) via an elementary proof by using the Routh-Hurwitz criterion to show that the Jacobian matrix valued at the point has two and two eigenvalues in the open left- and right-half planes, respectively. This paper prove that the Pendubot will eventually enter the basin of attraction of any stabilizing controller for all initial conditions with the exception of a set of Lebesgue measure zero provided that these improved conditions on the control parameters are satisfied. The simulation results are provided to validate these results.

关键词： Robots Erbium Joints Mathematical model Equations Eigenvalues and eigenfunctions Jacobian matrices

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A low-voltage, low-power, wide gain-range VGA design using g m=ID method

A low-voltage, low-power, wide gain-range VGA design using g...

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7th Annual International Conference on Electrical engineering/Electronics, computer, Telecommunications and Information Technology, ECTI-CON 2010

作者： Isworo, Laksono Widyo Ochi, Hiroshi Muto, Cosy Kyushu Institute of Technology Graduate School of Computer Science and System Engineering 680-4 Kawazu Iizuka-shii Fukuoka 820-8502 Japan Faculty of Education Nagasaki University 1-14 Bunkyo-machi Nagasaki 852-8521 Japan

ISBN: (纸本)9789746724913

A low-voltage, low-power, wide gain-range variable gain amplifier (VGA) design has been proposed. To provide wide gain range feature, the proposed VGA utilizes a novel pseudo-exponential function. The design synthesis is simplified and optimized using gm=ID method which enables us to characterize transistors in any operating region based on their g m=ID and VGS relation. As the result, in CMOS 90nm technology under 1.2V supply voltage the proposed VGA has 75dB gain-range over 0.81V control voltage range, with 30MHz-184.8MHz bandwidth, and 0.72mW power consumption.

关键词： Variable gain amplifiers

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Content-based retrieval by multiple image examples for sign board retrieval

Content-based retrieval by multiple image examples for sign ...

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28th Picture Coding Symposium, PCS 2010

作者： Yoshitaka, Atsuo Hyoudou, Terumasa School of Information Science Japan Advanced Institute of Science and Technology 1-1 Asahidai Nomi Ishikawa 923-1292 Japan Faculty of Engineering Hiroshima University 1-4-1 Kagamiyama Higashi-Hiroshima 739-8527 Japan Computer System Co. Ltd. Japan

ISBN: (纸本)9781424471348

In the area of retrieving image databases, one of the promising approaches is to retrieve it by specifying image example. However, specifying a single image example is not always sufficient to get satisfactory result, since one image example does not give comprehensive ranges of values that reflect the various aspects of the object to be retrieved. In this paper, we propose a method of retrieving images by specifying multiple image examples that is designed for retrieving sign boards. Features of color, shape, and spatial relation of color regions are extracted from example images, and they are clustered so as to obtain proper range of values. Compared with QBE systems that accept only a single image as the query condition, MIERS (Multi-Image Example-based Retrieval system) returns better retrieval result, where the experimental result showed that specifying more examples helps to improve recall with little deterioration of precision. © 2010 IEEE.

关键词： Content based retrieval

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Noninvasive biosignal measurement of a subject in bed using ceramic sensors

Noninvasive biosignal measurement of a subject in bed using ...

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SICE Annual Conference

作者： Toshihiro Shino Kajiro Watanabe Kazuyuki Kobayashi Kaoru Suzuki Yosuke Kurihara System Control Engineering Department Faculty of Engineering Hosei University Koganei Tokyo Japan Department of Computer and Information Science Faculty of Science and Technology Seikei University Musashino Tokyo Japan

This paper describes a novel noninvasive method for sensing heartbeat, respiration and body-movement biosignals of a subject in bed by using ceramic piezo devices set under the legs of the bed.

ISBN: (纸本)9781424476428

This paper describes a novel noninvasive method for sensing heartbeat, respiration and body-movement biosignals of a subject in bed by using ceramic piezo devices set under the legs of the bed.

关键词： Heart beat Ceramics Leg Sensor phenomena and characterization Microphones Turning

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Reviews and findings on implementing active learning in a large class environment for Mechatronics and computer science students

Reviews and findings on implementing active learning in a la...

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IEEE Education engineering (EDUCON)

作者： Tze Ying Sim Birgit Vogel-Heuser Department of Embedded System Faculty of Eletrical Engineering and Computer Science University of Kassel Germany Information Technology in Mechanical Engineering Faculty of Mechanical Engineering Technical University Munich Germany

This paper tackled the issues of different learning preferences for computer science and Mechatronics students in a large class environment by using different active learning methodologies. Apart from implementing active learning methods in the class, another idea present here is coupling with another course. The efforts required and the effectiveness for these methods are being presented, with this the suitable methods can be selected depending on the participants and the resources available.

关键词： Mechatronics computer science Throughput Interference Large-scale systems Bandwidth Radio propagation Electronic mail Radio spectrum management Frequency conversion

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