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11th International Conference on computer Modelling and Simulation (UKSim 2009)

作者： Azmi, Zafril Rizal M. Abu Bakar, Kamalrulnizam Abdullah, Abdul Hanan Shamsir, Mohd Shahir Faculty of Computer Science and Information System UTM Faculty of Science (Biology) UTM

ISBN: (纸本)9781424437719

Over the past decade, scheduling in distributed computing system has been an active research. However, it is still difficult to find an optimal scheduling algorithm to achieve load balancing for a specific scientific application which is executed in an unpredictable environment. This is due to the complex nature of the application which changes during runtime and due to the dynamic nature and unpredictability of the computational environment. This paper addresses these issues by presenting a Simulated Annealing (SA) approach as an optimizer which is an improved version of EG-EDF with Tabu Search optimizer. Instead of using Tabu Search, this work used SA to optimize the scheduling algorithm. The scheduling algorithms have been evaluated using three main criteria;number of delayed jobs, makespan time and total tardiness. Our results show the improvements to the main criteria mentioned.

关键词： Simulated annealing

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Corrections to “Effective Gait Abnormality Detection in Parkinson Patients for Multi-Sensors Surveillance system”

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IEEE Access 2025年 13卷 62892-62892页

作者： Abdulwahab Alazeb Mouazma Batool Naif Al Mudawi Mohammed S. Alshehri Sultan Almakdi Nouf Abdullah Almujally Asaad Algarni Department of Computer Science College of Computer Science and Information System Najran University Najran Saudi Arabia Department of Computer Science Air University Islamabad Pakistan Department of Information Systems College of Computer and Information Sciences Princess Nourah bint Abdulrahman University Riyadh Saudi Arabia Department of Computer Science Faculty of Computing and Information Technology Northern Border University Rafha Saudi Arabia

Presents corrections to the paper, (Corrections to “Effective Gait Abnormality Detection in Parkinson Patients for Multi-Sensors Surveillance system”).

关键词： Surveillance

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Generalization Bounds of ERM Algorithm with Markov Chain Samples

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Acta Mathematicae Applicatae Sinica 2014年第1期30卷 223-238页

作者： Bin ZOU Zong-ben XU Jie XU Faculty of Mathematics and Computer Science Hubei University Institute for Information and System Science School of Mathematics and StatisticsXi’an Jiaotong University

One of the main goals of machine learning is to study the generalization performance of learning algorithms. The previous main results describing the generalization ability of learning algorithms are usually based on independent and identically distributed （i.i.d.） samples. However, independence is a very restrictive concept for both theory and real-world applications. In this paper we go far beyond this classical framework by establishing the bounds on the rate of relative uniform convergence for the Empirical Risk Minimization （ERM） algorithm with uniformly ergodic Markov chain samples. We not only obtain generalization bounds of ERM algorithm, but also show that the ERM algorithm with uniformly ergodic Markov chain samples is consistent. The established theory underlies application of ERM type of learning algorithms.

关键词： generalization bounds ERM algorithm relative uniform convergence uniformly ergodic Markovchain learning theory

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The sign tales of Hurst parameter: A revisit

The sign tales of Hurst parameter: A revisit

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2nd International Conference on Convergent information Technology, ICCIT 07

作者： Salleh, Mazleena Bakar, Ahmad Zaki Abu Department of Computer System and Communication Faculty of Computer Science and Information System Universiti Teknologi Malaysia Department of Information System Faculty of Computer Science and Information System Universiti Teknologi Malaysia

ISBN: (纸本)0769530389

Network traffic measurement studies have shown the presence of self-similar behavior in both local area and wide area traffic traces. In this study we investigated the magnitude of the self-similarity behavior of network traffic and its Hurst measurement, H. Our study has revealed several characteristics of H based on the network traffic changes. From the finding, H can be used as traffic load indicated only if the sampling size is large. On the other hand for a smaller sampling size, H can be used to indicate the change in traffic pattern. However network traffic does not always exhibit self-similarity property. Activities such as peer-to-peer can steer the traffic to lose this property. © 2007 IEEE.

关键词： Wide area networks

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Digital nudging model for learning management systems: Saudi Arabia perspective

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Heliyon 2025年第6期11卷

作者： Alotaibi, Salihah Issa, Tomayess Abu-Salih, Bilal Aljaafari, Mohammed Almiani, Muder Information Systems Department College of Computer and Information Sciences Imam Mohammad Ibn Saud Islamic University (IMSIU) Riyadh 11432 Saudi Arabia Faculty of Business and Law Curtin University Hayman Road Bentley 6102 WA Australia King Abdullah II School of Information Technology The University of Jordan Amman 11942 Jordan King Faisal University Al-Ahsa 31982 Saudi Arabia Department of Management Information System (MIS) Gulf University for Science and Technology Kuwait City Kuwait

Decisions related to education are complex and have long-term consequences. For higher education students, most of these decisions are made when students are young and with little academic experience;these decisions can potentially influence students to postpone the completion of academic tasks or make unwise decisions. In this research, an e-nudging model is proposed for higher education in Saudi Arabia (SA), offering early and low-cost support for universities to encourage students to make better. A mixed-methods approach (an explanatory sequential design) was adopted, and two online surveys were designed to target academics and IT staff. The survey of academics and IT staff yielded two new factors: training and support for both instructors and students and awareness of e-nudges. The students' survey showed that 45.30% of university students are struggling to maintain attention and 29.66% have issues with memory. The interview phase was conducted with twenty-five expert academics who were invited to give their perceptions about the e-nudging model, and two new factors were generated, namely “define students' barriers: behavior, cognitive and environmental” and “ethics of e-nudge”. The position of the evaluation stage in the e-nudging model was changed to make the purpose and functionality of this stage clearer to the readers. In the future, this research can be re-conducted in other developing countries, especially the Gulf Cooperation Council (GCC) countries which share many common characteristics such as culture, religion, social mores, languages, and economic and financial systems. © 2025 The Author(s)

关键词： E-nudging model Higher education Learning environment Saudi Arabia

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system Architecture for SQL Injection and Insider Misuse Detection system for DBMS

System Architecture for SQL Injection and Insider Misuse Det...

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International Symposium on information Technology

作者： Asmawi, Aziah Sidek, Zailani Mohamed Razak, Shukor Abd Faculty of Computer Science and Information System Universiti Teknologi Malaysia

ISBN: (纸本)9781424423279

As organizations increase their adoption of databasesystems as one of their key data management technologies for the daily operations and decision makings, the security of data managed by these systems becomes crucial. Damage and misuse of data affect not only a single user or application, but may have effect the entire organization. The recent rapid proliferations of web-based applications with database at its backend have further increased the risk of database exposure to the outside world. There are many recent reports on intrusion from external hackers which compromised the database system. However, there are also insiders who abuse their privileges and access the database system for many intentions. P-or that reason, it is imperative for its to secure database system from both external and internal attacks. This paper describes on database security threats and the existing works that had been done to mitigate these problems. One of possible solutions is by using Intrusion Detection system (IDS). For that reason, this study proposed a novel SQL Injections and Insider Misuse Detection system (SIIMDS) to provide higher level of security for database system.

关键词： Database systems

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Survival Analysis of Kasturi Tobacco Plants in Jember District using the Stratified Cox and Extended Cox Models

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MethodsX 2025年

作者： Angga Iryanto Pratama Dwi Rantini Ratih Ardiati Ningrum Arip Ramadan Fazidah Othman Data Science Technology Study Program Faculty of Advanced Technology and Multidiscipline Universitas Airlangga Surabaya 60115 Indonesia Research Group of Data-Driven Decision Support System Faculty of Advanced Technology and Multidiscipline Universitas Airlangga Surabaya 60115 Indonesia Information System Study Program School of Industrial and System Engineering Telkom University Surabaya Campus Surabaya 60231 Indonesia Department of Computer System and Technology Faculty of Computer Science and Information Technology University of Malaya Malaysia

In 2022, tobacco was the top export commodity, generating $106.3 million in sales. East Java Province contributes significantly to Indonesia's tobacco production, with an annual output of 188.6 thousand tons. Jember Regency is the area in East Java Province which is a Kasturi tobacco cultivation area. The productivity of Kasturi tobacco continues to decrease due to several factors that can affect the survival of the tobacco. This study aims to analyze the survival of Kasturi tobacco by creating stratified Cox and extended Cox models in order to handle factors that cannot fulfill the proportional hazard assumption. Based on the results of the analysis, the stratified Cox model is the best model with AIC and BIC values of 798.108 and 805.5748 respectively, while the extended Cox has AIC and BIC values of 840.2186 and 850.1732 respectively. Variables that can significantly affect the survival of Kasturi tobacco are the variable concentration of ZA fertilizer, pesticide concentration. The addition of ZA fertilizer must be appropriate, because if excessive it can cause poisoning of tobacco plants. Likewise with pesticides, if excessive it will cause damage to the leaves. This policy can increase the productivity of Kasturi tobacco. Then, Jember Regency contributes greater export capacity. • This paper aims to determine the factors that affect the survival of Kasturi tobacco plants in Jember • By using the extended Cox model, the best one is obtained using the Heaviside function with AIC and BIC values of 840.2186 and 850.1732, respectively • The stratified Cox model is better than the extended Cox model, which has AIC and BIC values of 798.108 and 805.5748, respectively

关键词： Productive Agriculture Cox Proportional Hazard Stratified Cox Extended Cox Kasturi Tobacco

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An Efficient Indoor Localization Based on Deep Attention Learning Model

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computer systems science & Engineering 2023年第8期46卷 2637-2650页

作者： Amr Abozeid Ahmed I.Taloba Rasha M.Abd El-Aziz Alhanoof Faiz Alwaghid Mostafa Salem Ahmed Elhadad Department of Computer Science College of Science and ArtsJouf UniversityQurayyatSaudi Arabia Information System Department Faculty of Computers and InformationAssiut UniversityEgypt Computer Science Department Faculty of Computers and InformationAssiut UniversityAssiutEgypt Department of Computer Science Faculty of Computers and InformationSouth Valley UniversityQenaEgypt

Indoor localization methods can help many sectors,such as healthcare centers,smart homes,museums,warehouses,and retail malls,improve their service *** a result,it is crucial to look for low-cost methods that can provide exact localization in indoor *** this context,imagebased localization methods can play an important role in estimating both the position and the orientation of cameras regarding an ***-based localization faces many issues,such as image scale and rotation ***,image-based localization’s accuracy and speed(latency)are two critical *** paper proposes an efficient 6-DoF deep-learning model for image-based *** model incorporates the channel attention module and the Scale PyramidModule(SPM).It not only enhances accuracy but also ensures the model’s real-time *** complex scenes,a channel attention module is employed to distinguish between the textures of the foregrounds and *** model adapted an SPM,a feature pyramid module for dealing with image scale and rotation variance ***,the proposed model employs two regressions(two fully connected layers),one for position and the other for orientation,which increases outcome *** on standard indoor and outdoor datasets show that the proposed model has a significantly lower Mean Squared Error(MSE)for both position and *** the indoor 7-Scenes dataset,the MSE for the position is reduced to 0.19 m and 6.25°for the ***,on the outdoor Cambridge landmarks dataset,the MSE for the position is reduced to 0.63 m and 2.03°for the *** to the findings,the proposed approach is superior and more successful than the baseline methods.

关键词： Image-based localization computer vision deep learning attention module VGG-16

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Deployment of Polar Codes for Mission-Critical Machine-Type Communication Over Wireless Networks

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computers, Materials & Continua 2022年第4期71卷 573-592页

作者： Najib Ahmed Mohammed Ali Mohammed Mansoor Rodina Binti Ahmad Saaidal Razalli Bin Azzuhri Department of Software Engineering Faculty of Computer Science and Information TechnologyUniversity of Malaya50603Kuala Lumpur Malaysia 2Department of Computer System&TechnologyFaculty of Computer Science and Information TechnologyUniversity of Malaya50603Kuala LumpurMalaysia

Mission critical Machine-type Communication(mcMTC),also referred to as Ultra-reliable Low Latency Communication(URLLC),has become a research *** is primarily characterized by communication that provides ultra-high reliability and very low latency to concurrently transmit short commands to a massive number of connected *** the reduction in physical(PHY)layer overhead and improvement in channel coding techniques are pivotal in reducing latency and improving reliability,the current wireless standards dedicated to support mcMTC rely heavily on adopting the bottom layers of general-purpose wireless standards and customizing only the upper *** mcMTC has a significant technical impact on the design of all layers of the communication protocol *** this paper,an innovative bottom-up approach has been proposed for mcMTC applications through PHY layer targeted at improving the transmission reliability by implementing ultra-reliable channel coding scheme in the PHY layer of IEEE 802.11a standard bearing in mind short packet transmission *** achieve this aim,we analyzed and compared the channel coding performance of convolutional codes(CCs),low-density parity-check(LDPC)codes,and polar codes in wireless network on the condition of short data packet *** Viterbi decoding algorithm(VA),logarithmic belief propagation(Log-BP)algorithm,and cyclic redundancy check(CRC)successive cancellation list(SCL)(CRC-SCL)decoding algorithm were adopted to CC,LDPC codes,and polar codes,***,a new PHY layer for mcMTC has been *** reliability of the proposed approach has been validated by simulation in terms of Bit error rate(BER)and packet error rate(PER)***-to-noise ratio(SNR).The simulation results demonstrate that the reliability of IEEE 802.11a standard has been significantly improved to be at PER=10−5 or even better with the implementation of polar *** results also show that the general-purpose wireless net

关键词： Machine-type communication mission-critical applications MTC URLLC M2M wireless networks polar codes

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Comparative performance of TCP variants on self-similar traffic

Comparative performance of TCP variants on self-similar traf...

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2005 1st International Conference on computers, Communications and Signal Processing with Special Track on Biomedical Engineering, CCSP 2005

作者： Salleh, Mazleena Abu Bakar, Ahmad Zaki Department of Computer System and Comm. Faculty of Computer Science and Information System University Technology Malaysia Malaysia Department of Information System Faculty of Computer Science and Information System University Technology Malaysia Malaysia

ISBN: (纸本)1424400112

Network traffic of Internet will continue to expand in terms of both volume and users, and transmission control protocol (TCP) is accounting for more than 90% the Internet traffic. In addition to this, it is well known that Internet traffic exhibits self-similarity, which cannot be described by traditional Markovian models such as the Poisson process. In this paper we focus on experimental quantitative comparisons of four TCP variants namely Tahoe, NewReno, Vegas, and SACK running over self-similar traffic. With the aid of network simulator, NS2, aggregated network traffic of self-similarity behavior is simulated and will act as the background traffic. The impact of one TCP microflow will be observed, and data analysis such packets dropped, packets retransmitted, throughput, and the behavior of the data received over time is analyzed. In measuring the degree of self-similarity we employed optimization method to determine Hurst parameter, H. From our analysis, Vegas out performed other TCP variants at high traffic load and all TCP variants tend to demonstrate self-similar traffic flow even though initially the departure rate of TCP packets is constant. © 2005 IEEE.

关键词： Transmission control protocol

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