发布求助
文献互助 智能选刊 最新文献

2021 56th International Scientific Conference on Information, Communication and Energy Systems and Technologies (ICEST)最新文献

筛选
英文 中文
MRI/SPECT Image Fusion of Brain Based on Multi-Scale Wavelet Decomposition 基于多尺度小波分解的脑MRI/SPECT图像融合
2021 56th International Scientific Conference on Information, Communication and Energy Systems and Technologies (ICEST) Pub Date : 2021-06-16 DOI: 10.1109/ICEST52640.2021.9483476
V. Georgieva, P. Petrov, Diana S. Tsvetkova, L. Laskov
{"title":"MRI/SPECT Image Fusion of Brain Based on Multi-Scale Wavelet Decomposition","authors":"V. Georgieva, P. Petrov, Diana S. Tsvetkova, L. Laskov","doi":"10.1109/ICEST52640.2021.9483476","DOIUrl":"https://doi.org/10.1109/ICEST52640.2021.9483476","url":null,"abstract":"This paper presents a study on the possibilities offered by the multi-scale wavelet decomposition in the medical image fusion of the brain obtained by MRI and SPECT technology. The influences of various discrete wavelet functions by which the decomposition was obtained and the corresponding level at which it was constructed are analysed. The implemented study and the results obtained using real images would be useful in making a more precise diagnosis.","PeriodicalId":308948,"journal":{"name":"2021 56th International Scientific Conference on Information, Communication and Energy Systems and Technologies (ICEST)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121150265","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
IT Service Management Challenges in Condition of Pandemic and Post-Pandemic Environment 疫情及后疫情环境下的IT服务管理挑战
2021 56th International Scientific Conference on Information, Communication and Energy Systems and Technologies (ICEST) Pub Date : 2021-06-16 DOI: 10.1109/ICEST52640.2021.9483549
Yasen Mitev, Dimitar I. Dimitrov
{"title":"IT Service Management Challenges in Condition of Pandemic and Post-Pandemic Environment","authors":"Yasen Mitev, Dimitar I. Dimitrov","doi":"10.1109/ICEST52640.2021.9483549","DOIUrl":"https://doi.org/10.1109/ICEST52640.2021.9483549","url":null,"abstract":"Private and public businesses are experiencing massive challenges to adapt to changes caused by the 2020 covid-19 pandemic. This is impacting any business worldwide even in the cases with increasing revenue. This study describes how a company's IT is being changed from a viewpoint of pre-sales engineer, describing common patterns highlighted. The operations of IT departments are affected by the pandemic due to the reason that the main commercial activities of the companies are changed significantly. That triggers a long list of actions that needs to be considered. The most often challenges that companies reported are: remote work due to lockdown, not working or not existing Business Continuity Planning (BCP), Decreased or frozen IT budgets, priorities changes in the roadmap of IT projects, Projects freeze, Accelerated digitalization, IT budgets change.","PeriodicalId":308948,"journal":{"name":"2021 56th International Scientific Conference on Information, Communication and Energy Systems and Technologies (ICEST)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123928564","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Using simulation modeling to study overvoltages in the electrical networks 采用仿真建模方法对电网中的过电压进行研究
2021 56th International Scientific Conference on Information, Communication and Energy Systems and Technologies (ICEST) Pub Date : 2021-06-16 DOI: 10.1109/ICEST52640.2021.9483505
Margreta P. Vasileva
{"title":"Using simulation modeling to study overvoltages in the electrical networks","authors":"Margreta P. Vasileva","doi":"10.1109/ICEST52640.2021.9483505","DOIUrl":"https://doi.org/10.1109/ICEST52640.2021.9483505","url":null,"abstract":"Overvoltages are one of the main causes of damage to electrical networks and equipment. Detailed calculation of overvoltages in electrical networks is possible only by using computer equipment with appropriate software. This paper presents one of simulation models of the electrical networks, which are developed for training students in the discipline “High Voltage Technics”, options for conducting research and results of simulation model research.","PeriodicalId":308948,"journal":{"name":"2021 56th International Scientific Conference on Information, Communication and Energy Systems and Technologies (ICEST)","volume":"81 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116830152","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A planar MIMO UWB array design for high-resolution microwave imaging 一种用于高分辨率微波成像的平面MIMO超宽带阵列设计
2021 56th International Scientific Conference on Information, Communication and Energy Systems and Technologies (ICEST) Pub Date : 2021-06-16 DOI: 10.1109/ICEST52640.2021.9483491
D. Ziani, S. Meriah, F. Derraz, L. Merad
{"title":"A planar MIMO UWB array design for high-resolution microwave imaging","authors":"D. Ziani, S. Meriah, F. Derraz, L. Merad","doi":"10.1109/ICEST52640.2021.9483491","DOIUrl":"https://doi.org/10.1109/ICEST52640.2021.9483491","url":null,"abstract":"In this paper, a planar multiple input multiple output MIMO UWB array is proposed for 3D microwave imaging applications. According to the virtual array concept, the advantage of the MIMO array lies on improving the angular resolution with a reduced number of antennas, and achieve the same resolution as a fully populated conventional arrays. In addition, the UWB systems provide a better range resolution thanks to their large bandwidth. The frequency diversity and its influence on the system's resolution is also studied. For the MIMO array, an optimal UWB antenna element is designed with more than 128% of fractional bandwidth with no considerable distortion of the transmitted impulse. For the imaging algorithm, the Back-projection algorithm is implemented and used for the reconstruction of the images. In order to study the performance of the designed system, the full-wave electromagnetic simulator CST MWS is used which allow the modelling in three-dimensions (3D). The resulting images of a different target materials and dielectric properties confirm the reliability of the proposed system and the impact of the spatial and frequency diversity in the resolution improvement while considerably reducing the cost of the MIMO UWB array.","PeriodicalId":308948,"journal":{"name":"2021 56th International Scientific Conference on Information, Communication and Energy Systems and Technologies (ICEST)","volume":"46 1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125879034","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Sensitivity of notch filters realized by parallel connection of allpass subfilters 全通子滤波器并联实现陷波滤波器的灵敏度
2021 56th International Scientific Conference on Information, Communication and Energy Systems and Technologies (ICEST) Pub Date : 2021-06-16 DOI: 10.1109/ICEST52640.2021.9483504
Ivana Kostić, G. Stancic, Stevica Cvetkovic
{"title":"Sensitivity of notch filters realized by parallel connection of allpass subfilters","authors":"Ivana Kostić, G. Stancic, Stevica Cvetkovic","doi":"10.1109/ICEST52640.2021.9483504","DOIUrl":"https://doi.org/10.1109/ICEST52640.2021.9483504","url":null,"abstract":"The different structures of digital notch filters realized as parallel connection of two allpass subfilters are investigated in this paper. The research was done for notch filters with only one notch frequency. The influence of filter coefficients quantization on filter characteristics is analysed for three configurations and the results are displayed. Unlike Butterworth and elliptic filters it is shown that notch filters realised as parallel connection of two allpass filters remain selective even in case the coefficients are represented with only three fractional bits. All given results are obtained using Matlab® package.","PeriodicalId":308948,"journal":{"name":"2021 56th International Scientific Conference on Information, Communication and Energy Systems and Technologies (ICEST)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127517793","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
[Blank page] (空白页)
2021 56th International Scientific Conference on Information, Communication and Energy Systems and Technologies (ICEST) Pub Date : 2021-06-16 DOI: 10.1109/icest52640.2021.9483542
{"title":"[Blank page]","authors":"","doi":"10.1109/icest52640.2021.9483542","DOIUrl":"https://doi.org/10.1109/icest52640.2021.9483542","url":null,"abstract":"","PeriodicalId":308948,"journal":{"name":"2021 56th International Scientific Conference on Information, Communication and Energy Systems and Technologies (ICEST)","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132916237","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Wireless channel prediction using ensemble of Extreme Learning Machines 使用极限学习机集成的无线信道预测
2021 56th International Scientific Conference on Information, Communication and Energy Systems and Technologies (ICEST) Pub Date : 2021-06-16 DOI: 10.1109/ICEST52640.2021.9483464
M. Stojanovic, N. Sekulovic, A. Panajotovic, Predrag M. Popovic, M. Protić
{"title":"Wireless channel prediction using ensemble of Extreme Learning Machines","authors":"M. Stojanovic, N. Sekulovic, A. Panajotovic, Predrag M. Popovic, M. Protić","doi":"10.1109/ICEST52640.2021.9483464","DOIUrl":"https://doi.org/10.1109/ICEST52640.2021.9483464","url":null,"abstract":"In this article, we examine the possibilities and provide justification for extreme learning machines (ELMs) ensemble application in prediction of wireless channel condition. Single-input single-output (SISO) system in environments classified as microcellular and picocellular is used for analysis of the prediction model. Effectiveness and accuracy of ensemble based ELM algorithm to predict signal-to-noise ratio (SNR) in the channel is confirmed using, as performance indicators, the normalized mean squared error (NMSE) and time consumption. Moreover, the ensemble can effectively improve the generalization of the model compared to the single ELM. The results also show that ELM scan generates diverse prediction results, even when using the same training set.","PeriodicalId":308948,"journal":{"name":"2021 56th International Scientific Conference on Information, Communication and Energy Systems and Technologies (ICEST)","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133382538","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Human Action Recognition for Pose-based Attention: Methods on the Framework of Image Processing and Deep Learning 基于姿态注意的人体动作识别:基于图像处理和深度学习框架的方法
2021 56th International Scientific Conference on Information, Communication and Energy Systems and Technologies (ICEST) Pub Date : 2021-06-16 DOI: 10.1109/ICEST52640.2021.9483503
Desislava Nikolova, Ivaylo Vladimirov, Zornitsa Terneva
{"title":"Human Action Recognition for Pose-based Attention: Methods on the Framework of Image Processing and Deep Learning","authors":"Desislava Nikolova, Ivaylo Vladimirov, Zornitsa Terneva","doi":"10.1109/ICEST52640.2021.9483503","DOIUrl":"https://doi.org/10.1109/ICEST52640.2021.9483503","url":null,"abstract":"This paper presents an overview of some approaches of Human action recognition (HAR) for pose-based attention. The paper focus is on algorithms that use video processing on a given dataset. A list of the best HAR datasets is given in order to show the variety of the available videos online. Local and Global feature extraction are reviewed. Also some of the most common Deep Learning methods are studied: Recurrent Neural Network (RNN), Convolutional Neural Network (CNN) and Generative Adversarial Network (GAN). All of the methods are directed to recognise the pose and the focus of the person in a recording.","PeriodicalId":308948,"journal":{"name":"2021 56th International Scientific Conference on Information, Communication and Energy Systems and Technologies (ICEST)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131798577","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Communication system for remote control of infrared heating 通信系统用于遥控红外加热
2021 56th International Scientific Conference on Information, Communication and Energy Systems and Technologies (ICEST) Pub Date : 2021-06-16 DOI: 10.1109/ICEST52640.2021.9483488
V. Yosifova, D. Chikurtev
{"title":"Communication system for remote control of infrared heating","authors":"V. Yosifova, D. Chikurtev","doi":"10.1109/ICEST52640.2021.9483488","DOIUrl":"https://doi.org/10.1109/ICEST52640.2021.9483488","url":null,"abstract":"The paper presents a communication system for remote control of infrared heating. The system is based on internet technologies, Smart home technologies, IoT and LoRa technologies. The structure of the proposed system and the applied technologies used are described. The possibilities for the system architecture are presented. The application of the system will be reviewed as future possibilities in energy-efficient heating.","PeriodicalId":308948,"journal":{"name":"2021 56th International Scientific Conference on Information, Communication and Energy Systems and Technologies (ICEST)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116814132","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Unsubscribe rate of chatbots users received broadcast messages for France, Germany, Russia and the Global market 法国、德国、俄罗斯和全球市场的聊天机器人用户接收广播消息的退订率
2021 56th International Scientific Conference on Information, Communication and Energy Systems and Technologies (ICEST) Pub Date : 2021-06-16 DOI: 10.1109/ICEST52640.2021.9483561
Georgi N. Georgiev, O. Panagiev
{"title":"Unsubscribe rate of chatbots users received broadcast messages for France, Germany, Russia and the Global market","authors":"Georgi N. Georgiev, O. Panagiev","doi":"10.1109/ICEST52640.2021.9483561","DOIUrl":"https://doi.org/10.1109/ICEST52640.2021.9483561","url":null,"abstract":"This paper shows the chatbot users unsubscribe rate when they receive a weekly broadcast message. This research tracks the unsubscribe rate for a Viber application in four different locations - France, Germany, Russia, and Global (all users in countries that are not part of the first three). Quantitative data regarding broadcast messages has been analyzed. We have similar user groups based on location, platform, first interaction, and sent messages.","PeriodicalId":308948,"journal":{"name":"2021 56th International Scientific Conference on Information, Communication and Energy Systems and Technologies (ICEST)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129851836","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
首页 上一页 下一页 尾页
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整，为了账户安全，请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们：info@booksci.cn Book学术提供免费学术资源搜索服务，方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号：604180095
Book学术官方微信