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5G Vs Wi-Fi Indoor Positioning: A Comparative Study 5G与Wi-Fi室内定位:比较研究
Pub Date : 2023-08-27 DOI: 10.5121/ijcses.2023.14402
Even Becker, Hans D. Schotten
Sensing location information in indoor scenes requires a high accuracy and is a challenging task, mainly because of multipath and NLoS (non-line-of-sight) propagation. GNSS signals cannot penetrate well in indoor environment. Satellite-based navigation and positioning systems cannot therefore be used for indoor positioning.. Other technologies have been suggested for indoor usage, among them, Wi-Fi (802.11) and 5G NR (New Radio). The primary aim of this study is to discuss the advantages and drawbacks of 5G and Wi-Fi positioning techniques for indoor localization.
由于多路径和非视距传播,室内场景的位置信息传感精度要求很高,是一项具有挑战性的任务。在室内环境下,GNSS信号不能很好地穿透。因此,卫星导航和定位系统不能用于室内定位。其他技术也被建议用于室内使用,其中包括Wi-Fi(802.11)和5G NR(新无线电)。本研究的主要目的是讨论5G和Wi-Fi定位技术用于室内定位的优缺点。
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引用次数: 0
Barriers for Females to Pursue Stem Careers and Studies at Higher Education Institutions (HEI). A Closer Look at Academic Literature 女性在高等教育机构(HEI)追求Stem职业和学习的障碍。近距离观察学术文献
Pub Date : 2023-08-27 DOI: 10.5121/ijcses.2023.14401
Elizaveta Tereshchenko, Ari Happonen, Victoria Hasheela-Mufeti
Background and context: Even when the modern world is transitioning quickly into the digital age, the gender gap continues to be more acute. Social scientists note the low number of women in Science, Technology, Engineering, and Maths (STEM) as a scientific, creative, economic, and innovative potential loss. The importance of women’s participation in technical sciences and technical production is also recognized as a factor for stable social development. Objective and method: A scoping review has been conducted to study females’ reasonings and society-based explanations for females to choose STEM studies at the Higher Education Institutions (HEI) level. The goal is to understand the reasons for the low number of females in STEM careers related to education in STEM and to reveal the underlying phenomenon. Results: The gender attitudes and stereotypes inherent in boy and girl children’s spare time and school life narrow the children's possibilities from what specific education and career direction they can choose. But only a few genetics and physical differences could postulate and explain this status quo. Humans have formed a particular social framework; in the process, we have socialized childhood and education. When choosing a future specialization, the society in which the child grew up, the family that brought him up, and what traditions they invested in are much more important than his gender. Implications: Based on our results, we summarise the scattered knowledge base and utilize the analyzed summary for recommendations to further the development of HEI programs to make them more fitting for both genders and help reduce the gender gap. The universities should cover the achievements of females, more often in their media channels, related to the previously mentioned interest in STEM, based on the presence of a role model. When choosing a university, girls can see a real example and be inspired to study STEM majors.
背景和背景:即使现代世界正在迅速过渡到数字时代,性别差距仍然更加严重。社会科学家指出,女性在科学、技术、工程和数学(STEM)领域的人数较少,这是一种科学、创造性、经济和创新方面的潜在损失。妇女参与技术科学和技术生产的重要性也被认为是稳定社会发展的一个因素。目的和方法:对女性在高等教育机构(HEI)层面选择STEM学习的原因和社会基础解释进行了范围审查。目标是了解STEM教育相关的STEM职业中女性人数较少的原因,并揭示潜在的现象。结果:男孩和女孩在业余时间和学校生活中固有的性别态度和刻板印象缩小了他们选择具体教育和职业方向的可能性。但只有少数遗传和生理差异可以假设和解释这种现状。人类已经形成了一个特殊的社会框架;在这个过程中,我们把童年和教育社会化了。在选择未来的专业时,孩子成长的社会,抚养他长大的家庭,以及他们所投资的传统比他的性别重要得多。启示:基于我们的研究结果,我们总结了分散的知识基础,并利用分析总结提出建议,以进一步发展高等教育项目,使其更适合男女,有助于缩小性别差距。大学应该更多地在媒体渠道上报道女性的成就,这些成就与之前提到的对STEM的兴趣有关,并以榜样的存在为基础。在选择大学时,女孩们可以看到一个真实的例子,并受到启发去学习STEM专业。
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引用次数: 0
Advance in Image and Audio Restoration and their Assessments: A Review 图像和音频恢复及其评价研究进展
Pub Date : 2021-04-30 DOI: 10.5121/IJCSES.2021.12201
Omar Mohammed, B. Mahmood
Image restoration is the process of restoring the original image from a degraded one. Images can be affected by various types of noise, such as Gaussian noise, impulse noise, and affected by blurring, which is happened during image recordings like motion blur, Out-of-Focus Blur, and others. Image restoration techniques are used to reverse the effect of noise and blurring. Restoration of distorted images can be done using some information about noise and the blurring nature or without any knowledge about the image degradation process. Researchers have proposed many algorithms in this regard; in this paper, different noise and degradation models and restoration methods will be discussed and review some researches in this field.
图像恢复是将降级后的图像恢复到原始图像的过程。图像可能受到各种类型的噪声的影响,例如高斯噪声、脉冲噪声,以及在图像记录期间发生的模糊(如运动模糊、失焦模糊等)的影响。图像恢复技术用于扭转噪声和模糊的影响。失真图像的恢复可以使用一些关于噪声和模糊性质的信息,或者不需要任何关于图像退化过程的知识。研究人员在这方面提出了许多算法;本文将讨论不同的噪声退化模型和恢复方法,并对该领域的一些研究进行综述。
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引用次数: 0
Multilayer Backpropagation Neural Networks for Implementation of Logic Gates 实现逻辑门的多层反向传播神经网络
Pub Date : 2021-02-28 DOI: 10.5121/IJCSES.2021.12101
Santosh Giri, Basanta Joshi
ANN is a computational model that is composed of several processing elements (neurons) that tries to solve a specific problem. Like the human brain, it provides the ability to learn from experiences without being explicitly programmed. This article is based on the implementation of artificial neural networks for logic gates. At first, the 3 layers Artificial Neural Network is designed with 2 input neurons, 2 hidden neurons & 1 output neuron. after that model is trained by using a backpropagation algorithm until the model satisfies the predefined error criteria (e) which set 0.01 in this experiment. The learning rate (α) used for this experiment was 0.01. The NN model produces correct output at iteration (p)= 20000 for AND, NAND & NOR gate. For OR & XOR the correct output is predicted at iteration (p)=15000 & 80000 respectively.
人工神经网络是一个计算模型,它由几个处理元素(神经元)组成,试图解决一个特定的问题。就像人类的大脑一样,它提供了从经验中学习的能力,而无需明确编程。本文是基于人工神经网络的逻辑门实现。首先设计了3层人工神经网络,包含2个输入神经元、2个隐藏神经元和1个输出神经元。然后使用反向传播算法对模型进行训练,直到模型满足本实验中设定为0.01的预定义误差标准(e)。本实验的学习率(α)为0.01。NN模型在迭代(p)= 20000时对与门、非与门和NOR门产生正确的输出。对于OR和XOR,分别在迭代(p)=15000和80000时预测正确的输出。
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引用次数: 0
Artificial Neural Networks for Medical Diagnosis: A Review of Recent Trends 人工神经网络用于医学诊断:最新趋势综述
Pub Date : 2020-06-30 DOI: 10.5121/ijcses.2020.11301
Egba Anwaitu Fraser, Okonkwo, R. Obikwelu
Artificial Intelligence systems (especially computer-aided diagnosis and artificial neural networks) are increasingly finding many uses in medical diagnosis application in recent times. These methods are adaptive learning algorithms that are capable of handling multiple and heterogeneous types of clinical data with a view of integrating them into categorized outputs. In this study, we briefly review and discuss the concept, capabilities, and applicability of artificial neural network techniques to medical diagnosis, through consideration of some selected physical and mental diseases. The study focuses on scholarly researches within the years, 2010 to 2019. Findings show that no electronic online clinical database exists in Nigeria and the Sub-Saharan countries, most review researches in this area focused mainly on physical diseases without considering mental illnesses, the application of ANN in mental and comorbid disorders have not been thoroughly studied, ANN models and algorithms consider mainly homogeneous input data sources and not heterogeneous input data sources, and ANN models on multi-objective output systems are few as compared to single output ANN models.
近年来,人工智能系统(特别是计算机辅助诊断和人工神经网络)在医学诊断中的应用越来越广泛。这些方法是自适应学习算法,能够处理多种异构类型的临床数据,并将其整合到分类输出中。在本研究中,我们简要回顾和讨论人工神经网络技术在医学诊断中的概念、能力和适用性,通过考虑一些选定的身心疾病。该研究侧重于2010年至2019年期间的学术研究。研究结果表明,尼日利亚和撒哈拉以南非洲国家没有电子在线临床数据库,该领域的大多数综述研究主要集中在身体疾病而没有考虑精神疾病,神经网络在精神和共病疾病中的应用尚未得到深入研究,神经网络模型和算法主要考虑同质输入数据源,而不是异构输入数据源。与单输出神经网络模型相比,多目标输出神经网络模型较少。
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引用次数: 2
Brain Computer Interfaces Employing Machine Learning Methods : A Systematic Review 采用机器学习方法的脑机接口:系统回顾
Pub Date : 2020-04-30 DOI: 10.5121/ijcses.2020.11201
S. Vyas
Research under the field of Brain Computer Interfaces is adapting various Machine Learning and Deep Learning techniques in recent times. With the advent of modern BCI, the data generated by various devices is now capable of detecting brain signals more accurately. This paper gives an overview of all the steps involved in the process of applying Machine Learning as well as Deep Learning methods from Data Acquisition to application of algorithms. It aims to study techniques currently employed to extract data, features from brain data, different algorithms employed to draw insights from the extracted features, and how it can be used in various BCI applications. By this study, I aim to put forward current Machine Learning and Deep Learning Trends in the field of BCI.
近年来,脑机接口领域的研究正在采用各种机器学习和深度学习技术。随着现代脑机接口的出现,各种设备产生的数据现在能够更准确地检测大脑信号。本文概述了应用机器学习过程中涉及的所有步骤,以及从数据采集到算法应用的深度学习方法。它旨在研究目前用于提取数据的技术,从大脑数据中提取特征,从提取的特征中提取见解的不同算法,以及如何将其用于各种脑机接口应用。通过这项研究,我旨在提出当前脑机接口领域的机器学习和深度学习趋势。
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引用次数: 1
A Survey on Call Admission Control Schemes in LTE LTE中呼叫接纳控制机制的研究
Pub Date : 2019-10-31 DOI: 10.5121/ijcses.2019.10501
Solomon Orduen Yese, Abdulhakeem Abdulazeez, Aminu Mohammed, M. Umar, Zaharadden Yusuf Yeldu
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引用次数: 5
The Implication of Statistical Analysis and Feature Engineering for Model Building Using Machine Learning Algorithms 统计分析和特征工程对使用机器学习算法建立模型的意义
Pub Date : 2019-06-29 DOI: 10.5121/IJCSES.2019.10301
Swayanshu Shanti Pragnya, S. Priyadarshi
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引用次数: 0
SECURITY AND KEY MANAGEMENT CHALLENGES OVER WSN (A SURVEY) 无线传感器网络的安全性和密钥管理挑战(调查)
Pub Date : 2019-04-01 DOI: 10.5121/IJCSES.2019.10102
Nesma Abd El-mawla, M. Badawy, Hesham A. Arafat
Wireless sensor networks (WSNs) have turned to be the backbone of most present-day information technology, which supports the service-oriented architecture in a major activity. Sensor nodes and its restricted and limited resources have been a real challenge because there’s a great engagement with sensor nodes and Internet Of things (IoT). WSN is considered to be the base stone of IoT which has been widely used recently in too many applications like smart cities, industrial internet, connected cars, connected health care systems, smart grids, smart farming and it's widely used in both military and civilian applications now, such as monitoring of ambient conditions related to the environment, precious species and critical infrastructures. Secure communication and data transfer among the nodes are strongly needed due to the use of wireless technologies that are easy to eavesdrop, in order to steal its important information. However, is hard to achieve the desired performance of both WSNs and IoT and many critical issues about sensor networks are still open. The major research areas in WSN is going on hardware, operating system of WSN, localization, synchronization, deployment, architecture, programming models, data aggregation and dissemination, database querying, architecture, middleware, quality of service and security. In This paper we discuss in detail all about Wireless Sensor Networks, its classification, types, topologies, attack models and the nodes and all related issues and complications. We also preview too many challenges about sensor nodes and the proposed solutions till now and we make a spot ongoing research activities and issues that affect security and performance of Wireless Sensor Network as well. Then we discuss what’s meant by security objectives, requirements and threat models. Finally, we make a spot on key management operations, goals, constraints, evaluation metrics, different encryption key types and dynamic key management schemes.
无线传感器网络(wsn)已成为当今大多数信息技术的支柱,它在主要活动中支持面向服务的体系结构。传感器节点及其有限的资源一直是一个真正的挑战,因为传感器节点和物联网(IoT)有很大的联系。WSN被认为是物联网的基石,最近在智能城市、工业互联网、互联汽车、互联医疗系统、智能电网、智能农业等众多应用中得到了广泛的应用,现在在军事和民用应用中都得到了广泛的应用,例如与环境、珍贵物种和关键基础设施相关的环境条件监测。由于无线技术的使用容易被窃听,因此为了窃取其重要信息,迫切需要节点之间的安全通信和数据传输。然而,无线传感器网络和物联网很难同时达到预期的性能,关于传感器网络的许多关键问题仍然没有解决。无线传感器网络的主要研究方向是硬件、操作系统、定位、同步、部署、体系结构、编程模型、数据聚合与传播、数据库查询、体系结构、中间件、服务质量和安全。本文详细讨论了无线传感器网络的分类、类型、拓扑、攻击模型和节点以及所有相关问题和复杂性。我们还预览了迄今为止关于传感器节点的许多挑战和提出的解决方案,并对正在进行的影响无线传感器网络安全性和性能的研究活动和问题进行了介绍。然后讨论安全目标、需求和威胁模型的含义。最后,重点介绍了密钥管理操作、目标、约束、评估指标、不同的加密密钥类型和动态密钥管理方案。
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引用次数: 8
REVIEW AND ANALYSIS ON TELECOMMUNICATION NETWORKS INFRASTRUCTURE IN THE NORTHWEST PROVINCE OF NIGERIA FOR OPTIMISATION: PROBLEMS AND SOLUTIONS 审查和分析尼日利亚西北省电信网络基础设施的优化:问题和解决方案
Pub Date : 2019-02-28 DOI: 10.5121/ijcses.2019.10101
Sanusi Mohammed Bunu, Murtala Muhammad, Hamid A. Adamu
Telecommunication network infrastructure determines the strength of a country for successful communication with other parts of the world. Due to the rapid increase of internet usage and mobile communication in every part of the world, specifically the third world countries, Nigeria is among the countries that is advancing in the used of telecommunication contraptions. The Nigerian Telecommunication Industries play a vital role in boosting the social and economic infrastructure of the country. This paper is aimed at investigating the Telecommunication Network infrastructure in the Northwestern part of Nigerian and propose some technologies that increase data bandwidth and internet penetration in the region. Problems and future solutions to the existing network infrastructure in the province were discussed and basic analysis is conducted to justify the importance of the study. Mobile market analysis, current infrastructure, parameters evaluation and the way forward to the problems are discussed. Comparative analysis between the existing network infrastructure that is 3G networks and the proffer solution to the existing standard which is 4G network is also conducted. This paper also conducts an analysis on the existing Network providers in the region with their draw backs and the quality of services they provide to the customers within the region. The paper concludes with a future plan of coming up with an analytical solution in order to study the implementation process of a full 4G network in the Northwest region of Nigeria and to use a simulated environment to test the proposed model for viability.
电信网络基础设施决定了一个国家与世界其他地区成功通信的实力。由于互联网使用和移动通信在世界各地,特别是第三世界国家的迅速增加,尼日利亚是在使用电信装置方面取得进展的国家之一。尼日利亚电信业在促进该国的社会和经济基础设施方面发挥着至关重要的作用。本文旨在调查尼日利亚西北部的电信网络基础设施,并提出一些技术,以增加该地区的数据带宽和互联网普及率。讨论了该省现有网络基础设施存在的问题和未来的解决方案,并进行了基本分析,以证明本研究的重要性。讨论了移动市场分析、现有的基础设施、参数评估以及未来存在的问题。对现有网络基础设施即3G网络与现有标准提供的解决方案即4G网络进行了对比分析。本文还对区域内现有的网络供应商进行了分析,分析了它们的不足之处以及它们为区域内客户提供的服务质量。本文最后提出了一个分析解决方案的未来计划,以研究尼日利亚西北地区完整4G网络的实施过程,并使用模拟环境来测试所提出的模型的可行性。
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引用次数: 0
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International Journal of Computer Science & Engineering Survey
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