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International Conference on Knowledge and systems engineering (KSE)

作者： Tran Thi Nhu Nguyet Tran Van Hoai Nguyen Anh Thi Faculty of Computer Science and Engineering Ho Chi Minh City University of Technology Ho Chi Minh Vietnam Key Laboratory on Digital Control and System Engineering (DCSE) VNU-HCM Ho Chi Minh Vietnam

This paper describes some techniques based on polygon aggregation in reducing time for visibility graph in case of many obstacles. In path planning, the approaches are commonly used such as search-based, sampling-based or combinatorial planning. And visibility graph is one of the roadmaps of combinatorial planning. Building a visibility graph is a main phase in the whole process and theoretically it takes θ(nlogn). However, with some practical applications, for example one which has a large number of obstacles, this phase is very time-consuming. With the techniques proposed, the experiment result shows that the computing time gets a reduction factor of one-third approximately when the aggregation are used in preprocessing of building visibility graph.

关键词： Path planning Planning Clustering algorithms Complexity theory Educational institutions Robots Merging

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Psychophysiological treatment in reduced anxiety with biofeedback training for university students

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Procedia - Social and Behavioral sciences 2011年 30卷 629-633页

作者： Prima Vitasari Muhammad Nubli Abdul Wahab Tutut Herawan Suriya Kumar Sinnadurai Faculty of Manufacturing Engineering and Technology Management Lebuhraya Tun Razak 26300 Kuantan Pahang Malaysia Center of Modern Language and Human Science Lebuhraya Tun Razak 26300 Kuantan Pahang Malaysia Faculty of Computer System and Software Engineering Universiti Malaysia Pahang Lebuhraya Tun Razak 26300 Kuantan Pahang Malaysia

Researchers found some individuals with anxiety disorders, and most of the university's students suffer from some degree of anxiety level during the academic years. Anxiety was prevalent and persistent in student's population. More than half of students with significant symptoms of anxiety do not receive treatment even over two year periods. This research offers a psychophysiological treatment to reduce anxiety through biofeedback training for university students. A total 35 students were participated during 10 th sessions training. They are students who have high anxiety level. The psychophysiological arousal was measure used beat-per-minute and breath-per-minute. Repeating measurement of ANOVA was used to evaluate during the 1 st session, 4 th session, 7 th session, and 10 th session and further compare the differences. The result shows that there is a significant change over time in the beat-per-minute and breath-per-minute through the participants. From the training, it is shown that after 10 th session, students be able to control their heartbeat and respiration to reduce anxiety level. It is concluded that the psychophysiological treatment with biofeedback training is an effective method to reduce anxiety for university students.

关键词： psychophysiological psychology physiology treatment anxiety students biofeedback university

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Representation of social anxiety among engineering students

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Procedia - Social and Behavioral sciences 2011年 30卷 620-624页

Social anxiety can be seen in students with special needs such low self-confidence, to feel shy, difficult relationship with roommate, problem with peers, and feeling uncomfortable in hostel. The effect of social life is an important issue among students. In this paper, the representation of social anxiety was presented with different manifestation than prior studies. That was investigated among engineering students. One sample t -test was used to examine the possible dimensions of social anxiety. The data collection was used a survey. A total 770 students participated to fill the questionnaire. The students were second years on five engineering faculties in Universiti Malaysia Pahang. The social anxiety designates into seven factors include; (1) problem with peer, (2) Hostel is uncomfortable for study, (3) face problem with roommates, (4) homesick, (5) feel that campus environment uncomfortable for study, (6) racial diversity, and (7) too many roommates are making study difficult. The finding shows a significant of seven factors as creator of social anxiety among engineering students. The instrument can be use to examine social anxiety for university students was recommended.

关键词： social anxiety anxiety student engineering students peer

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SEWOS: Bringing Semantics into Web operating system

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International Journal of computer science Issues 2011年第3 3-1期8卷 515-521页

作者： Riad, A.M. Elminir, Hamdy K. ElSoud, Mohamed Abu Sabbeh, Sahar F. Information system department Faculty of computers and information sciences Mansoura university Egypt Department of Communication Misr Academy for Engineering and technology Faculty of computers and information sciences Mansoura University Egypt Computer Science department Faculty of computers and information sciences Mansoura University Egypt Alzarka Higher institute for administration and computer sciences Damietta Egypt

The revolution in web world led to increasing users' needs, demands and expectations. By the time, those needs developed starting from ordinary static pages, moving on to fully dynamic ones and reaching the need for services and applications to be available on the web!.. Those demands changed the perspective of our web today to what's said to be a cloud of computing that aims mainly to provide applications as services for web user. As time goes by, applications were just not enough;users needed their applications and data available anytime, anywhere. For these reasons, traditional operating system functionality was needed to be provided as a service that integrates several applications together with user's data. In this paper we present the detailed description, implementation and evaluation of SEWOS [1]- a semantically enhanced web operating system- that provides the feel, look and mimic traditional desktop applications using desktop metaphor.

关键词： Semantics

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Re-test of State Trait Anxiety Inventory (STAI) among engineering Students in Malaysia: Reliability and Validity tests

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Procedia - Social and Behavioral sciences 2011年 15卷 3843-3848页

作者： Prima Vitasari Muhammad Nubli Abdul Wahab Tutut Herawan Ahmad Othman Suriya Kumar Sinnadurai Faculty of Manufacturing Engineering and Technology Management Universiti Malaysia Pahang Lebuhraya Tun Razak 26300 Kuantan Pahang MALAYSIA Center of Modern Language and Human Science Universiti Malaysia Pahang Lebuhraya Tun Razak 26300 Kuantan Pahang MALAYSIA Faculty of Computer System and Software Engineering Universiti Malaysia Pahang Lebuhraya Tun Razak 26300 Kuantan Pahang MALAYSIA

Various tests have been conducted using the State Trait Anxiety Inventory (STAI) and it has provided adequate evidence to measure anxiety in research and clinical settings. This paper proposes a re-test to evaluate STAI among engineering students in Malaysia. A total 253 engineering students participated in this study. The re-test was presented for reliability, construct validity, and coefficient correlation of State and Trait. The reliability coefficients were computed using Cronbach alpha. In order to determine the validity of the instrument used factor analysis and coefficient correlation were used. Results: The STAI was established with the reliability at .850. In addition, the construct validity of the STAI, as measured by factor analysis were found, the correlation between items (KMO) score .824 (>.30 ) and p=.000. Where, the State shows KMO=.818, p=.000, and Cronbach alpha found .797. Meanwhile, Trait proved KMO=.783, p=.000, and Cronbach alpha found .781. The results show that the reliability and validity of State Trait Anxiety Inventory was suitable and acceptable. Consistently, strong correlations between State and Trait scale scores provided supportive evidence for the instrument. The results are evident and it can be recommended as an instrument to measure anxiety level for similar studies.

关键词： Reliability Validity State Trait STAI Anxiety engineering students

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Boxing Punch Analysis Using 3D Gyro Sensor

Boxing Punch Analysis Using 3D Gyro Sensor

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SICE Annual Conference

作者： Manabu Morita Kajiro Watanabe Kazuyuki Kobayashi Yousuke Kurihara Department of System Engineering Faculty of Engineering Hosei University Department of System Engineering Hosei University Department of Computer and Information Science Seikei University

ISBN: (纸本)9784907764388

The objective of this study was to discriminate different types of punches based on signals measured by gyro sensors. If a boxer consistently uses the same pattern of attack, his opponent could easily determine what type of punch is coming next. Thus, by feeding back information on the frequency of each type of punch, the attack pattern can be identified and the counterattack can be improved.

关键词： 3D gyro sensor Angular velocity Cross-correlation Boxing

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A novel type of trigonometric neural network trained by Extended Kalman Filter

A novel type of trigonometric neural network trained by Exte...

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International Workshop on Advanced Computational Intelligence (IWACI)

作者： M. Norouzi M. Mansouri M. Teshnehlab M. Aliyari Shoorehdeli Faculty of Engineering Department of Computer Engineering Science and Research Branch Islamic Azad University Iran Intelligent System Laboratory (ISLAB) Faculty of Electrical Engineering Control Department K.N. Toosi University of Technology Tehran Iran Faculty of Electrical Engineering Department of Mechatronics Engineering Advanced Process Automation &Control Laboratory (APAC) K.N. Toosi University of Technology Tehran Iran

In this study, a new type of trigonometric neural network is presented by adding frequency and phase to trigonometric activation functions. The proposed trigonometric neural network has more flexibility in comparison with conventional trigonometric neural networks and even other types of neural networks. Due to the low convergence rate and high posibility of trapping in a local minimum of backpropagation algorithm, Extended Kalman Filter algorithm is used to train the neural network's parameters which they appear in a nonlinear form. The Simulation of the suggested neural network based on the prediction of Mackey-Glass time series and identification of a nonlinear dynamic ystem reveals the efficiency of the proposed network. To show the efficiency of this method, the results are compared with the results of the others.

关键词： Biological neural networks Kalman filters Equations Neurons Vectors Covariance matrix Mathematical model

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A pilot study of pre- post anxiety treatment to improve academic performance for engineering students

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Procedia - Social and Behavioral sciences 2011年 15卷 3826-3830页

In this paper, we present a pilot study of pre- post treatment toward overcoming anxiety in improving academic performance for engineering's students. The anxiety level measurement was used to examine the effect of the intervention, as well to acquire the prior finding on the effectiveness of a treatment to reduce anxiety in improving academic performance. It is based on a pre post design to evaluate the effect of intervention by using breath per-minute (bpm) and grade point average (GPA). Six males and females engineering's students participated in this study. They received six sessions of treatment each for two hours of intervention. It includes breathing retreatment, relaxation, study coping skills. The results show that, the number of anxieties was significantly reduced which bpm shows t (2;5)= 4.788; p=.005 (p<.05). Furthermore, for GPA the difference is not significant with t (0;5)= -1.894; p=.117 (p>.05). Since all participants had reduced their anxiety level and improve their academic performance, we recommend that this intervention as an effective approach in reducing anxiety level.

关键词： Pilot study Treatment Anxiety Academic performance engineering student.

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IT Governance and Small Medium Enterprises

IT Governance and Small Medium Enterprises

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International Conference on Software and computer Applications（ICSCA 2011）

作者： Masarat Ayat Maslin Masrom Shamsul Sahibuddin Faculty Computer Science and Information System Universiti Teknologi Malaysia Johor Razak School of Engineering and Advanced Technology Universiti Teknologi Malaysia Kuala lumpur Advanced Informatics School (AIS) Universiti Teknologi Malaysia Kuala lumpur

In this decade Information Technology Governance （ITG） has become a hot topic between IT based companies. Since ITG status company is referring to an IT matured organization having six principles as expected by ISO 38500, there is no exemplar standard or framework to cover all of them. However, the most widespread existing frameworks in this area are COBIT, ITIL, and CMMI which not necessarily cover all of them. On the other hand, with respect to Small Medium Enterprises （SMEs） limitations, they have some constraints to implement all expected ITG principles by ISO 38500, completely. In this paper, the most comprehensive definition for ITG has presented and those most common ITG frameworks have been discussed（explained）. Later, the SMEs definition and their characteristics have been explored. And lastly the relationship between ITG and SMEs has been discussed.

关键词： IT Governance ISO/IEC 38500 SME Information Technology

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Soft vector quantization with inverse power-function distributions for machine learning applications

IAENG International Journal of Computer Science

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IAENG International Journal of computer science 2011年第1期38卷 74-81页

作者： Attia, Mohamed Almazyad, Abdulaziz El-Mahallawy, Mohamed Al-Badrashiny, Mohamed Waleed, Nazih HLT consultant for The Engineering Company Development of Computer System 12613 Giza Egypt Luxor Technologies Inc. Oakville-L6L6V2 ON Canada College of Computer Engineering and Sciences AlKharj University AlKharj Saudi Arabia Dept. of Computer Engineering College of Computer and Information Sciences King Saud University Riyadh Saudi Arabia College of Engineering and Technology Arab Academy for Science and Technology Heliopolis Campus Cairo Egypt Dept. of Electronics and Electrical Communications Faculty of Engineering Cairo University 12613 Giza Egypt

This paper discusses the positive impact of soft vector quantization on the performance ofmachine-learning systems that include one or more vector quantization modules. The most impactful gains here are avoiding over-fitting and boosting the robustness of such systems in the presence of considerable parasitic variance;e.g. noise, in the runtime *** paper then introduces a soft vector quantization scheme with inverse power-function distributions, and analytically derives an upper bound of its relative quantization noise energy to that of typical (hard-deciding) vector quantization. This relative noise is expressed as a closed-form function of the power in order to allow the selection of its optimal values of that compromise both a soft enough vector quantization with a stable performance via small enough relative quantization ***, we present empirical evidence obtained via experimenting with two versions of the best reported OCR system for cursive scripts - that happened to deploy discrete HMMs - one version with hard vector quantization and the other with our herein presented soft quantization. Test samples of real-life scanned Arabic text pages are used to challenge both versions;hence the recognition error margins are compared.

关键词： Vector quantization

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