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2020 4th International Conference on Electronics, Communication and Aerospace Technology (ICECA)最新文献

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Automatic Intelligent Korean Character Semantic Recognition and Analysis Framework based on Machine Learning 基于机器学习的自动智能韩文语义识别与分析框架
Y. Dou
Automatic intelligent korean character semantic recognition and analysis framework based on machine learning is implemented in this manuscript. In the research process of this article, algorithm uses the idea of genetic system programming paradigm to derive characters in the initial system, while the initial L system operates a set of actual related parameter strings represented by letters to expand the grammar. There are core innovations as follows. (1) The random optimization algorithm is only required to know the unbiased estimation of the gradient of the objective function, especially for machine learning problem of finite samples. Hence, it is extended into higher complexity. (2) The random optimization method only needs to calculate the gradient of the objective function, it is therefore used to enhance the overall efficiency. The experiment compared with the latest methods have proven the performance.
本文实现了基于机器学习的自动智能韩文语义识别与分析框架。在本文的研究过程中,算法采用遗传系统编程范式的思想在初始系统中派生字符,而初始L系统则操作一组以字母表示的实际相关参数字符串来扩展语法。核心创新有以下几点。(1)随机优化算法只需要知道目标函数梯度的无偏估计,特别是对于有限样本的机器学习问题。因此,它被扩展到更高的复杂性。(2)随机优化方法只需要计算目标函数的梯度,因此可以提高整体效率。通过与最新方法的实验比较,验证了该方法的性能。
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引用次数: 0
Semi-Automated Technique for Vegetation Analysis in Sentinel-2 Multi-Spectral remote sensing images using Python 基于Python的Sentinel-2多光谱遥感影像植被分析半自动化技术
Sushma Barma, Sumanjali Damarla, S. K. Tiwari
Satellite imagery provides a lot of information that can be analysed for a variety of objectives. The vegetation analysis in a region for a particular period of time to process a large amount of data is remaining as a bottleneck and involves a series of timeconsuming steps that delay the output. To overcome this challenge, this study aims to automate the process and estimate the area of sparse and dense vegetation of a certain area of interest and to assess the vegetation dynamics in this region by using the Sentinel-2 data. Python with its opensource libraries are utilized for downloading and processing the satellite data. Mandal (sub-district) level Mean NDVI, area under sparse and dense vegetation are estimated at the peak vegetative growth stage in Rabi season (February) from 2017 to 2020. In the assessment of satellite data, it was observed that the Godavari delta region has shown a decrease in the sparse vegetative area (11094 ha.) and an increase in dense vegetation area (3272 ha.) in 2018 as compared with 2019 assessment. However, in the Krishna delta region, it was observed that the sparse vegetation area was decreased (90600 ha) and an increased dense area (161915 ha.) in 2020 as compared with 2017. The process involves downloading Sentinel-2 data using SentinelHub and SentinelSat API, pre-processing and segmenting NDVI images to classify vegetation areas and the calculation of Mandal (sub-district) level statistics.
卫星图像提供了大量信息,可以对各种目标进行分析。对某一地区特定时间段的植被分析处理大量数据仍然是一个瓶颈,涉及到一系列耗时的步骤,导致输出延迟。为了克服这一挑战,本研究旨在利用Sentinel-2数据对某一感兴趣区域的稀疏和稠密植被面积进行自动化估算,并评估该区域的植被动态。Python及其开源库用于下载和处理卫星数据。估算了2017 - 2020年拉比季(2月)植被生长高峰期的平均NDVI、稀疏植被和茂密植被下面积。在卫星数据评估中,与2019年的评估相比,2018年哥达瓦里三角洲地区的稀疏植被面积减少(11094 ha.),茂密植被面积增加(3272 ha.)。然而,在克里希纳三角洲地区,与2017年相比,2020年稀疏植被面积减少(90600公顷),密集植被面积增加(161915公顷)。该过程包括使用SentinelHub和SentinelSat API下载Sentinel-2数据,对NDVI图像进行预处理和分割,对植被区域进行分类,并计算Mandal(街道)级统计数据。
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引用次数: 1
A Resistance-to-time Convertor to enhance Resistive Sensitivity of Embedded Systems 一种提高嵌入式系统电阻灵敏度的电阻-时间转换器
Dhruva Hunasekattte
A Resistance-to-time convertor consists of a voltage follower, a bridge amplifier and Schmitt trigger to increase the resistive sensitivity and resistance range of an embedded system like Arduino. Arduino has an Analog input Read scale between 0 to 1024 and max input voltage reading of 5V, due to which its resistance sensing capability is restricted and the accuracy is hindered. Therefore, the R to t convertor is used to improve its resistance sensing capability. Experimental values are also given to demonstrate the above.
电阻-时间转换器由电压跟随器、桥式放大器和施密特触发器组成,以增加像Arduino这样的嵌入式系统的电阻灵敏度和电阻范围。Arduino的Analog input Read scale在0 ~ 1024之间,最大输入电压读数为5V,这限制了Arduino的电阻传感能力,影响了其精度。因此,采用R to t变换器来提高其电阻感知能力。并给出了实验值来证明上述结论。
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引用次数: 1
A Novel Approach to Predict Chronic Kidney Disease using Machine Learning Algorithms 使用机器学习算法预测慢性肾脏疾病的新方法
Bhavya Gudeti, Shashvi Mishra, Shaveta Malik, Terrance Frederick Fernandez, A. Tyagi, Shabnam Kumari
A staggering 63,538 cases have been registered according to India’s health statistics on Chronic Kidney Disease (CKD). The average age of nephropathy for humans lies between 48-70 years. CKD is more prevalent among males than females. Bitterly, India ranks among top 17 countries in CKD since 2015, which is characterized by a gradual loss of excretory organ performance over time. Earlier detection of the illness followed by treatment could keep this dreaded disease at the shore. Machine Learning, is making sensible applications in the areas such as analyzing medical science outcomes, sleuthing fraud etc. For the prediction of chronic diseases various machine learning algorithms are implemented.Our main aim is to differentiate the performance of various machine learning algorithms that are primarily based on its accuracy. This research work has idolized Rcode to compare their performance. The pivotal purpose of this study is to analyze the Chronic Kidney Disease dataset and conduct CKD and Non CKD classification cases.
根据印度慢性肾脏疾病(CKD)的卫生统计数据,已有63538例病例登记。人类肾病的平均年龄在48-70岁之间。慢性肾病在男性中比女性更普遍。令人痛苦的是,自2015年以来,印度在慢性肾病方面排名前17位。慢性肾病的特点是排泄器官的功能随着时间的推移逐渐丧失。及早发现这种疾病并加以治疗,可以使这种可怕的疾病远离海岸。机器学习在分析医学成果、侦查欺诈等领域得到了合理的应用。对于慢性疾病的预测,实现了各种机器学习算法。我们的主要目标是区分各种机器学习算法的性能,这些算法主要基于其准确性。这项研究工作崇拜Rcode来比较它们的性能。本研究的关键目的是分析慢性肾脏疾病数据集,并进行CKD和非CKD分类病例。
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引用次数: 12
Knowledge Mining for Defining Systemic Engineering Practices 定义系统工程实践的知识挖掘
Samarjeet Kaur, Vedant Sahai, Aditi Jaiswal, S. Chanda
This paper addresses the problem on generating knowledge graphs from research papers related to wildfires, and their impacts on the electrical grid infrastructure. A novel framework based on part-of-speech tagging, word frequency statistics, and document clustering is proposed for extracting information and generating knowledge graphs from a selfcurated corpus of wildfire-related research work abstracts. The proposed method is capable of capturing a wide range of insightful information from the self-generated domain-specific corpus. Systemic engineering practices, such as strategies for wildfire mitigation by electric utilities has been included as a case study in this paper. An application of the research is implemented for simulating the management and mitigation of wildfires by electric utilities in California.
本文解决了从与野火相关的研究论文中生成知识图谱的问题,以及它们对电网基础设施的影响。提出了一种基于词性标注、词频统计和文档聚类的框架,用于从自整理的野火相关研究工作摘要语料库中提取信息并生成知识图。该方法能够从自生成的特定领域语料库中捕获广泛的有洞察力的信息。系统工程实践,例如电力公司的野火缓解策略,已被纳入本文的案例研究。将该研究应用于模拟加州电力公司对野火的管理和缓解。
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引用次数: 0
Impact of Power Quality Issues in Grid Connected Photovoltaic System 并网光伏系统电能质量问题的影响
B.N. Ch.V. Chakravarthi, G. V. Siva Krishna Rao
Power quality in the recent decade becomes one of the key components, which impacts the economy of a country. A huge increase in the population matters the large consumption of energy, in turn, leads to equivalent power generation. To control the greenhouse emissions and the worldwide warming up due to the utilization of conventional sources, substitution can be made with the support from the alternate green energy source. Also, the performance of the electrical utility can be improved by exploiting renewable resources since conventional energy is decaying day by day. Solar energy becomes the most prominent among the renewable resources, having enormous potential across the country. Power electronic interfaces like DC-DC converter, DC-AC inverter incorporated between the source and utility provides a stable power output. This proposed paper portrays the difficulties and concerns in the deployment of solar power towards the utility/public grid integration. The permissible level of penetration, optimal planning and sizing, voltage fluctuations, associated harmonics and appropriate filters are reviewed precisely.
近十年来,电能质量已成为影响一个国家经济发展的关键因素之一。人口的大量增加对能源的大量消耗至关重要,反过来又会导致同等的发电量。为了控制传统能源的温室气体排放和全球变暖,可以在替代绿色能源的支持下进行替代。此外,由于传统能源日益衰减,电力公用事业的性能可以通过开发可再生资源来提高。太阳能是可再生能源中最突出的,在全国范围内具有巨大的潜力。电力电子接口,如DC-DC转换器,DC-AC逆变器之间的电源和公用事业提供了一个稳定的电力输出。这篇建议的论文描述了在公用事业/公共电网整合中部署太阳能的困难和问题。允许的渗透水平,最佳规划和尺寸,电压波动,相关的谐波和适当的滤波器进行了精确的审查。
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引用次数: 12
Optimal Reach Settings of Mho Relay for Series Compensated Transmission Line Protection 串联补偿传输线保护中Mho继电器的最佳到达设定
Priyanka R. Khade, Mohan P. Thakre
In three-phase series compensated long transmission line, when the fault occurs in the system, the parameters like capacitive reactance $(mathrm{X}_{mathrm{c}})$ and fault reactance $(mathrm{R}_{mathrm{f}})$ can cause the distance relay to either under reach or over reach. This parameter can cause error in the estimation of fault impedance, vhere it gives apparent impedance due to vhich exact fault location cannot be determined and due to this the relay mal operates. To avoid mal-operation of distance relay, many filtering techniques like discrete Fourier transform (DFT), fast Fourier transform (FFt), wavelet filter, cosine filter, and prony filter are usedL This article deals with the best possible reach setting for the functional characteristics of the three-phase series compensated with trans mission line. Prony method remains as the baest alternative to acquire the accurate impedance calculated by measuring the voltage and current frequency phasors.
在三相串联补偿长传输线中,当系统发生故障时,容抗$(mathrm{X}_{mathrm{c}})$和故障抗$(mathrm{R}_{mathrm{f}})$等参数可引起距离继电器过伸或过伸。该参数可能导致故障阻抗估计错误,其中它给出的视阻抗由于无法确定准确的故障位置,因此继电器误操作。为了避免距离继电器误动作,采用了离散傅立叶变换(DFT)、快速傅立叶变换(FFt)、小波滤波、余弦滤波和proony滤波等滤波技术。本文讨论了输电线路补偿三相串联功能特性的最佳到达整定。通过测量电压和电流的频率相量来获得精确的阻抗,proony方法仍然是最可靠的替代方法。
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引用次数: 3
Cascade multilevel inverter based topology with reduced switch count 基于减少开关计数的级联多电平逆变器拓扑结构
Hemant Gupta, Arvind Yadav, S. Maurya
Due to growing influence in medium to high power applications, multilevel inverters have seen several modifications since its first release in the late 90’s. The modification includes its different topologies, control and modulation schemes. The main objective of those modifications was to reduce the number of switching devices while obtaining a higher number of levels in the output voltage. The working of a multilevel inverter is analyzed through which seventeen level output voltage can be achieved by employing eight switching devices. This arrangement provides minimal harmonic distortion by implementing multi-carrier pulse width modulation technique.
由于在中高功率应用中的影响力越来越大,自90年代末首次发布以来,多电平逆变器已经进行了多次修改。修改包括其不同的拓扑结构,控制和调制方案。这些修改的主要目的是减少开关器件的数量,同时获得更高数量的输出电压电平。分析了多电平逆变器的工作原理,通过8个开关器件可实现17电平输出电压。这种布置通过实现多载波脉宽调制技术提供最小的谐波失真。
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引用次数: 1
Document Image Analysis in Compressed Domain-Limitations, Applications & Challenges 压缩域文档图像分析——限制、应用与挑战
Kavita V. Horadi
Document image analysis plays a vital role in this digital era. Recent developments in the IT industry have led to the growth of digital data in various fields like medical, government offices, education sector, banks, social media, digital library, and so on. Advancement in the recent technologies has paved their way to convert the traditional offices into paperless offices. Also, the growth of digital libraries, e-governance, and internet based applications has led to the increase in the volume of digital data, which mainly include texts, graphs, images, audio and video as various components in the document image by resulting in the development of complex document images, which are used for archival and transmission on regular basis. This paper proposes an idea for processing the document image in its compressed version by particularly focusing on how content matching and structural analysis can be performed in the compressed representation of document image. This gives an insight on the importance of processing document images in its compressed domain. Due to the exponential growth of data, the data is stored in compressed form. There is an actual need for investigating further research from the perspective of dealing directly with the compressed representation of document images as a remedy to the ever-increasing big data-related challenges. This paper also discusses the various applications of document images and opens up the challenges faced by the researchers in addressing these applications. An overview of the state of the art datasets available in the literature in the area of document image analysis is also addressed
文档图像分析在数字时代起着至关重要的作用。IT行业的最新发展导致了医疗、政府办公室、教育部门、银行、社交媒体、数字图书馆等各个领域的数字数据的增长。最近技术的进步为传统办公室向无纸化办公室的转变铺平了道路。此外,数字图书馆、电子政务和基于互联网的应用的增长导致了数字数据量的增加,主要包括文本、图形、图像、音频和视频作为文件图像的各个组成部分,从而导致了复杂文件图像的发展,这些文件图像用于定期存档和传输。本文提出了一种处理压缩版文档图像的思路,特别关注如何在文档图像的压缩表示中进行内容匹配和结构分析。这说明了在压缩域中处理文档图像的重要性。由于数据呈指数级增长,数据以压缩形式存储。实际需要从直接处理文档图像压缩表示的角度进一步调查研究,以解决日益增加的大数据相关挑战。本文还讨论了文档图像的各种应用,并揭示了研究人员在解决这些应用时所面临的挑战。在文献图像分析领域的文献中提供的最新数据集的概述也被处理
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引用次数: 0
Load Balance Distribution In Heterogeneous Wireless Sensor Network 异构无线传感器网络中的负载均衡分布
Soumya Peddi, S. Patil, Jayashree Agarkhed
Energy productivity as well as energy adjusting will remain as a critical exploration issue according to the steering convention planning pro with self-sorted out wireless sensor network (WSNs). Numerous writings will utilize the alliance estimate to accomplish energy productivity as well as energy adjusting; in any case, it usually may be energy opening shut to cluster heads (CHs) as an outcome of substantial weight of sending. As the bunching issue in loss WSNs is end up being a NP-tricky issue, numerous metaheuristic computation are used to take care of the issue. In this manuscript, an exceptional alliance method call Energy center Searching using Particle Swarm Optimization (EC-PSO) is introduce to reside away as of these energy opening as well as hunt energy places pro CHs choice. During the main instance frame, the CHs be chosen utilize mathematical method. After the energy of organization is heterogeneous, EC-PSO is acknowledged pro bunch. Energy focus be looked through utilize an enhanced PSO computation in addition to hub near energy community be chosen as CHs. Moreover, a safety module is additionally use to forestall low energy hub as of being the forwarder as well as a portable information authority is acquainted through accumulate the information. The assorted reenactments are led to signify and introduce EC-PSO beat than some comparative mechanism concerning network lifetime enhancement as well as energy usage
根据自分类无线传感器网络(WSNs)的转向惯例规划,能源生产率和能源调整仍将是一个关键的勘探问题。许多文章将利用联盟估计来完成能源生产力和能源调整;在任何情况下,它通常可能是能量打开关闭簇头(CHs)作为一个结果,大量的发送权重。由于损失无线传感器网络中的聚束问题最终成为一个np棘手的问题,因此使用了大量的元启发式计算来处理该问题。本文介绍了一种特殊的联盟方法——基于粒子群优化的能量中心搜索(EC-PSO),该方法可以驻留在这些能量开放点之外,并在CHs选择时寻找能量位置。在主实例框架中,使用数学方法选择CHs。在组织能量异构化后,EC-PSO被认为是一种主流。除了选择能源社区附近的枢纽作为CHs外,还利用增强型粒子群算法对能源焦点进行了研究。此外,还使用安全模块来防止低能量枢纽作为货代,并通过积累信息来了解便携式信息权威。通过各种各样的再现来表示和介绍EC-PSO优于一些关于网络寿命增强和能源使用的比较机制
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引用次数: 0
期刊
2020 4th International Conference on Electronics, Communication and Aerospace Technology (ICECA)
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