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Develop learning methods imr (integrated material realistic) alternative mathematics learning during a pandemic

Journal of Physics: Conference Series 2021年第4期1918卷

作者： I.M. Rusmana Zainuri Wardono A.L Nulhakim Doctoral Program Universitas Negeri Semarang Indonesia Department of Mathematic Education Faculty of Mathematics and Natural Science Universitas Indraprasta PGRI Jakarta Indonesia Department of Mathematic Education Faculty of Mathematics and Natural Science Universitas Negeri Semarang Indonesia Department of Informatics Engineering Faculty of Engineering and Computer Science Universitas Indraprasta PGRI Jakarta Indonesia

The learning methods used by teachers in schools in Serang City are very ineffective, especially during the pandemic. This is because not integrated content of material in one subject with other subjects. Never mind between subjects, sometimes the material is not well integrated. The purpose of this study is to provide an alternative learning method during a pandemic, namely a method that integrates material with the realities of life which is abbreviated as IMR (Integrated Realistic Material). The method in this research is Research and Development (RnD) with the ADDIE model. In making this learning method according to the stages from the ADDIE study. The results of this study are in the form of learning methods that are integrated with the realities of life during the pandemic.

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Real-time UAV path-terrain collision evaluation on FPGA 4

Real-time UAV path-terrain collision evaluation on FPGA

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4th International Conference on Optimization and Applications, ICOA 2018

作者： Allaire, Francois Charles Joseph Tarbouchi, Mohammed Labonte, Gilles Roberge, Vincent Department of Electrical and Computer Engineering Royal Military College of Canada Kingston Canada Department of Mathematic and Computer Science Department of Electrical and Computer Engineering Royal Military College of Canada Kingston Canada

ISBN: (纸本)9781538642252

One of the most fundamental element of the Unmanned Aerial Vehicles (UAV) path planning is the assurance that the path planned avoids any terrain collision. The task to 'evaluate how much a UAV path is in collision with the terrain' is particularly crucial for path planners that are optimizing random generated paths. This terrain collision evaluation task can be computationally demanding and its computation time depends on the environment representation used. This paper presents a Field Programmable Gate Arrays (FPGA) based design of a UAV terrain collision evaluator that evaluates in parallel segments of the path in real-time. Its worst case computation time has a fixed upper bounded, based on the size of the map. For a 500×500 grid map, this upper bound is 1.9 μs, which is a promising result for future UAV real-time path planners. © 2018 IEEE.

关键词： Motion planning

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Algorithm Advanced Control Chaos and Stabilization Measurement Error 1

Algorithm Advanced Control Chaos and Stabilization Measureme...

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1st International Conference on computer Science and Applied mathematic, ICCSAM 2018

作者： Wanayumini Zarlis, Muhammad Suwilo, Saib Furqan, Mhd. Fauzi, Rahmat Syarifah, Tengku Department Information Technology University of Asahan Indonesia Technique Engineering of Science Universitas Sumatera Utara Indonesia Mathematic of Science Universitas Sumatera Utara Indonesia Department of Computer Science Universitas Islam Negeri Sumatera Utara Medan Indonesia Department Technique Electro Universitas Sumatera Utara Indonesia Department of Economic Management University of Asahan Indonesia

Measurement error in the data sample human voice from the data 1 to 17 obtain measurement results with the algorithm Advanced Chaos Control and Stabilization through several stages of delivery of the process control and and stabilizing the data to find the value of noise and bias in the initial process control and find the value of precision and accuracy in both the stabilization process. Stable value which must be controlled ranging 58,9922dB and 60,47059dB with a standard value of 60dB. © Published under licence by IOP Publishing Ltd.

关键词： Process control

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A computational dual-route model for processing spelling of bilingual learners in Kerala

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AIP Conference Proceedings 2022年第1期2424卷

作者： Soorya Surendran Mithun Haridas Devika Krishnan A Nirmala Vasudevan Georg Gutjahr Prema Nedungadi 1Department of Computer Science and Engineering Amrita Vishwa Vidyapeetham Amritapuri India 2Center for Research in Analytics & Technologies for Education (CREATE) Amrita Vishwa Vidyapeetham Amritapuri India 3Department of Mathematic Amrita Vishwa Vidyapeetham Amritapuri India 4Department of Physics Amrita Vishwa Vidyapeetham Amritapuri India

Various learning disabilities affect spelling and handwriting abilities of children. An understanding of these disabilitiesis facilitated by developing a formal model of the cognitive processes involved in spelling. One such model is the dual-route model which was originally proposed for reading but can also be applied to spelling by evaluating the cognitive steps in a different order. The model is language-dependent. To develop a spelling model for Malayalam-English bilingual learners in Kerala, South India, we conducted a spelling study with 208 second grade students from seven schools. We then fitted a Bayesian dual-route modelto the data using an expectation-maximization (EM) algorithm. The model used 4 hidden variables to represent the stages in the cognitive process and 13 observed variables to represent the various types of spelling errors. The performance of the model was evaluated using cross-validation, and it was found that the dual-route model outperforms single-route models.

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Using inductive approach (IA) to enhance students' critical thinking (CT) skills 6

Using inductive approach (IA) to enhance students' critical ...

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6th International Seminar on mathematics, Science, and computer Science Education, MSCEIS 2018

作者： Muliana Yusiran Agustinasari Asriyadin Susilawati, E. Sarnita, F. Siswanto Gumilar, S. Gustina Erwinsyah, A. Utami, L. Amiruddin, A. Syahrir Department of Physic Education STKIP Taman Siswa Bima Bima Indonesia Department of Natural Science Education Universitas Tidar Magelang Indonesia Department of Primary Teacher of Education STKIP 11 April Sumedang Indonesia Department of Physic Education Universitas Tadulako Palu Indonesia IAIN Sultan Amai Gorontalo Gorontalo Indonesia Department of Computer Engineering STMIK AKBA Makasar Indonesia Department of Mathematic Education IKIP Mataram Mataram Indonesia

CT skills are one of the skills required by students in facing the real world problems in 21st century era. They can be trained by using several approaches in science learning context. However, there is a little study focused to investigate the impact of IA toward CT skills. This present study investigated the implementation of IA to enhance students' CT skills. The experimental study, which was one group pretest posttest design, has been conducted to garner data from participants. There were 36 students (grade XI) who contributed as participants and they came from one public senior high school in Indonesia. In order to obtain data, an instrument related to CT skills was developed dealing with physics concepts. This finding revealed that students' CT skills enhanced in medium category based on normalized gain (N-gain). A consideration of the implication of this present study is a deep insight in students' CT skills in Indonesian high schools. © 2019 IOP Publishing Ltd.

关键词： Students

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A TrustEnclave-Based Architecture for Ensuring Run-Time Security in Embedded Terminals

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Tsinghua Science and Technology 2017年第5期22卷 447-457页

作者： Rui Chang Liehui Jiang Wenzhi Chen Yaobin Xie Zhongyong Lu the State Key Laboratory of Mathematic Engineering and Advanced Computing the Department of Computer Zhejiang University

The run-time security guarantee is a hotspot in current cyberspace security research, especially on embedded terminals, such as smart hardware as well as wearable and mobile devices. Typically, these devices use universal hardware and software to connect with public networks via the Internet, and are probably open to security threats from Trojan viruses and other malware. As a result, the security of sensitive personal data is threatened and economic interests in the industry are compromised. To address the run-time security problems efficiently, first, a TrustEnclave-based secure architecture is proposed, and the trusted execution environment is constructed by hardware isolation technology. Then the prototype system is implemented on real TrustZone-enabled hardware devices. Finally, both analytical and experimental evaluations are provided. The experimental results demonstrate the effectiveness and feasibility of the proposed security scheme.

关键词： run-time security trusted execution environment hardware isolation TrustZone

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A novel and efficient data point neighborhood construction algorithm based on Apollonius circle

arXiv

引用

arXiv 2018年

作者： Pourbahrami, Shahin Khanli, Leyli Mohammad Azimpour, Sohrab Computer Engineering Department Faculty of Electrical and Computer Engineering University of Tabriz Tabriz Iran Mathematic Department Faculty of Mathematic University of Farhangian Tehran Iran

Neighborhood construction models are important in finding connection among the data points, which helps demonstrate interrelations among the information. Hence, employing a new approach to find neighborhood among the data points is a challenging issue. The methods, suggested so far, are not useful for simultaneous analysis of distances and precise examination of the geometric position of the data as well as their geometric relationships. Moreover, most of the suggested algorithms depend on regulating parameters including number of neighborhoods and limitations in fixed regions. The purpose of the proposed algorithm is to detect and offer an applied geometric pattern among the data through data mining. Precise geometric patterns are examined according to the relationships among the data in neighborhood space. These patterns can reveal the behavioural discipline and similarity across the data. It is assumed that there is no prior information about the data sets at hand. The aim of the present research study is to locate the precise neighborhood using Apollonius circle, which can help us identify the neighborhood state of data points. High efficiency of Apollonius structure in assessing local similarities among the observations has opened a new field of the science of geometry in data mining. In order to assess the proposed algorithm, its precision is compared with the state-of-the-art and well-known (k-Nearest Neighbor and epsilon-neighborhood) algorithms. Copyright © 2018, The Authors. All rights reserved.

关键词： Data mining

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NCARD: Improving neighborhood construction by apollonius region algorithm based on density

arXiv

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arXiv 2018年

Due to the increased rate of information in the present era, local identification of similar and related data points by using neighborhood construction algorithms is highly significant for processing information in various sciences. Geometric methods are especially useful for their accuracy in locating highly similar neighborhood points using efficient geometric structures. Geometric methods should be examined for each individual point in neighborhood data set so that similar groups would be formed. Those algorithms are not highly accurate for high dimension of data. Due to the important challenges in data point analysis, we have used geometric method in which the Apollonius circle is used to achieve high local accuracy with high dimension data. In this paper, we propose a neighborhood construction algorithm, namely Neighborhood Construction by Apollonius Region Density (NCARD). In this study, the neighbors of data points are determined using not only the geometric structures, but also the density information. Apollonius circle, one of the state-of-the-art proximity geometry methods, Apollonius circle, is used for this purpose. For efficient clustering, our algorithm works better with high dimension of data than the previous methods;it is also able to identify the local outlier data. We have no prior information about the data in the proposed algorithm. Moreover, after locating similar data points with Apollonius circle, we will extract density and relationship among the points, and a unique and accurate neighborhood is created in this way. The proposed algorithm is more accurate than the state-of-the-art and well-known algorithms up to almost 8-13% in real and artificial data sets. Copyright © 2018, The Authors. All rights reserved.

关键词： Geometry

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An Effective Dual Closed-Loop Scheme Based on Lead Compensator and Proportional Controller for Quasi Z-Source Inverter

An Effective Dual Closed-Loop Scheme Based on Lead Compensat...

引用

2018 IEEE Region 10 Conference, TENCON 2018

作者： Law, Kah Haw Dahidah, Mohamed Sim, Sy Yi Pei Qin Ng, Wendy Masaoud, Ammar Abu-Siada, Ahmed Department of Electrical and Computer Engineering Curtin University Miri Malaysia School of Engineering Newcastle University Newcastle upon Tyne United Kingdom Department of Electrical and Electronic Engineering University Tun Hussein Onn Malaysia Malaysia Department of Chemical Engineering Curtin University Miri Malaysia School of Electrical Engineering Computer and Mathematic Science Curtin University Bentley Australia

ISBN: (纸本)9781538654576

The emergence of quasi Z source inverter (qZSI) in 2008 has grabbed researchers' attention to explore new enhancement control schemes and modulation techniques in the past decade. This paper proposed a single-phase qZSI with lead compensator in the control system driven by unipolar carrier based pulse width modulation (CB-PWM) technique. Specifically, the lead compensator acts as qZSI's outer voltage loop controller while the current inner control loop is attained via the conventional proportional (P) controller. When compared with traditional dual loop based proportional integral (PI)-P controller, the proposed controller demonstrates its superiority for the qZSI to achieve good dynamic, steady-state, and transient performances under both the continuous conduction mode (CCM) and discontinuous conduction mode (DCM) operations. All design procedures are presented thoroughly in this paper and the effectiveness and theoretical analysis of the proposed approach are verified through simulation using MATLAB/Simulink software. © 2018 IEEE.

关键词： Controllers

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Compact cat swarm optimization algorithm

Compact cat swarm optimization algorithm

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International Conference on Security with Intelligent Computing and Big-data Services, SICBS 2017

作者： Zhao, Ming Pan, Jeng-Shyang Chen, Shuo-Tsung School of Computer Science Yangtze University Jingzhou China School of Information Engineering Fuzhou University of Technology Fuzhou China Department of Mathematic Tung Hai University Taichung Taiwan

ISBN: (纸本)9783319764504

A compact cat swarm optimization algorithm (cCSO) was proposed in this paper. it keeps the same search logic of cat swarm optimization (CSO), i.e. tracing mode and seeking mode, on the other hands, cCSO inherits the main feature of compact optimization algorithms, a normal probabilistic vector is used to generate new individuals, the mean and the standard deviation of the probabilistic model could lead cats to the searching direction in next step. Only a cat is adopted in the algorithm, thus, it could run with modest memory requirement. Experimental results show that cCSO has better performance than some compact optimization algorithms in some benchmark functions test. The convergence rate is also a highlight among compact optimization algorithms. © Springer International Publishing AG, part of Springer Nature 2018.

关键词： Optimization

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