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2018 5th International Conference on Systems and Informatics (ICSAI)最新文献

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Sound Source Separation by Instantaneous Estimation-Based Spectral Subtraction 基于瞬时估计的谱减法声源分离
2018 5th International Conference on Systems and Informatics (ICSAI) Pub Date : 2018-11-01 DOI: 10.1109/ICSAI.2018.8599483
K. Ozawa, M. Morise, S. Sakamoto
{"title":"Sound Source Separation by Instantaneous Estimation-Based Spectral Subtraction","authors":"K. Ozawa, M. Morise, S. Sakamoto","doi":"10.1109/ICSAI.2018.8599483","DOIUrl":"https://doi.org/10.1109/ICSAI.2018.8599483","url":null,"abstract":"This project aims to achieve sound source separation based on the two-dimensional fast Fourier transform (2D FFT) of a spatio-temporal sound pressure distribution image consisting of the outputs of a microphone array. The target sound, which arrives from the front of the array, forms vertical stripes in the image. Therefore, its spectral components are perfectly localized as direct current (DC) components along the spatial frequency axis in the 2D-FFT spectrum. In this study, noise suppression was performed by spectral subtraction after the DC components of noise were instantaneously estimated from the spectrum using artificial neural networks. As a result, the performance of the proposed method with a 14-cm-long array was comparable to that of the conventional delay and sum beamformer method with an approximately 5-m-long array.","PeriodicalId":375852,"journal":{"name":"2018 5th International Conference on Systems and Informatics (ICSAI)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114208189","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: 8
Big Data Analysis of Criminal Investigations 刑事侦查大数据分析
2018 5th International Conference on Systems and Informatics (ICSAI) Pub Date : 2018-11-01 DOI: 10.1109/ICSAI.2018.8599305
Jianfa Hu
{"title":"Big Data Analysis of Criminal Investigations","authors":"Jianfa Hu","doi":"10.1109/ICSAI.2018.8599305","DOIUrl":"https://doi.org/10.1109/ICSAI.2018.8599305","url":null,"abstract":"This paper systematically analyzes five data analysis techniques in criminal investigation applications, and discusses the application of these technologies in crime analysis and big data criminal analysis in security. The advantages and challenges of the application of big data analysis technology in the field of security and criminal investigation are discussed. Finally, this paper proposes the research direction of big data analysis in the field of criminal investigation in the future.","PeriodicalId":375852,"journal":{"name":"2018 5th International Conference on Systems and Informatics (ICSAI)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116367399","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: 3
A New 2D Doppler Steering Method For Beam Synchronization In Format Flying Satellites InSAR Systems 一种新的二维多普勒导引方法用于格式飞行卫星InSAR系统的波束同步
2018 5th International Conference on Systems and Informatics (ICSAI) Pub Date : 2018-11-01 DOI: 10.1109/ICSAI.2018.8599458
Chipan Lai, Aifang Liu, Dong Mu, Yixuan Zhao
{"title":"A New 2D Doppler Steering Method For Beam Synchronization In Format Flying Satellites InSAR Systems","authors":"Chipan Lai, Aifang Liu, Dong Mu, Yixuan Zhao","doi":"10.1109/ICSAI.2018.8599458","DOIUrl":"https://doi.org/10.1109/ICSAI.2018.8599458","url":null,"abstract":"As we know that beam synchronization is a key technology for format flying satellites InSAR (interferometric synthetic aperture radar) system. Also, the Doppler Center Frequency is a very important parameter for spaceborne SAR signal processing. The more decrease of residual Doppler Center Frequency, the more convenience to SAR image formation. In this paper, the expression of Doppler Center Frequency is given after the analysis of the geometry of spaceborne SAR imaging. It considered the elliptical orbit and the pitch steering angle. For the sake of minimizing the Doppler Center Frequency, a new 2 dimensional (2D) attitude steering method-New Zero Doppler Steering, is suggested through the analysis of the expression. The new method can minimize the residual Doppler Centroid to absolutely zero Hz, and if all the satellites in the formation applying this method, the beam synchronization of the system can be realized and the common Doppler spectrum of tow images is maximal. The computer simulation results prove the validity of the method and show that the accuracy of New Zero Doppler Steering method is better than the Total Zero Doppler Steering theoretically. The New Zero Doppler Steering method can be applied to the future spaceborne SAR and formation flying satellite InSAR system.","PeriodicalId":375852,"journal":{"name":"2018 5th International Conference on Systems and Informatics (ICSAI)","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132134423","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
An Effective Face Recognition Framework With Subspace Learning Based on Local Texture Patterns 基于局部纹理模式的子空间学习人脸识别框架
2018 5th International Conference on Systems and Informatics (ICSAI) Pub Date : 2018-11-01 DOI: 10.1109/ICSAI.2018.8599322
Fujin Zhong, Shuo Yan, Li Liu, Ke Liu
{"title":"An Effective Face Recognition Framework With Subspace Learning Based on Local Texture Patterns","authors":"Fujin Zhong, Shuo Yan, Li Liu, Ke Liu","doi":"10.1109/ICSAI.2018.8599322","DOIUrl":"https://doi.org/10.1109/ICSAI.2018.8599322","url":null,"abstract":"Currently, there are mainly two kinds of methods for face recognition, i.e. subspace learning methods and local texture methods. Generally, the first are sensitive to compound changes including illumination, face expression and pose, but have low-dimensional features. Relatively, the second have high-dimensional features but better robustness to compound changes. Making full use of their advantages, this paper proposes a face recognition framework with subspace learning based on local texture patterns. Then, two face recognition methods, which adopt discriminant analysis from two different local texture patterns, are derived from the proposed framework. Lastly, the experimental results on AR database and CAS-PEAL-R1 database show that two proposed face recognition methods gain higher average optimal correct recognition rates than several traditional methods, and much lower dimensional features than traditional local texture methods, which verify the effectiveness of two methods derived from the proposed framework. Therefore, the proposed framework is effective and worth extending.","PeriodicalId":375852,"journal":{"name":"2018 5th International Conference on Systems and Informatics (ICSAI)","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132368565","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: 5
An Investigation of the High Pressure Controlled clearance Dead weight Piston Gauge 高压控制间隙自重活塞压力表的研究
2018 5th International Conference on Systems and Informatics (ICSAI) Pub Date : 2018-11-01 DOI: 10.1109/ICSAI.2018.8599365
Bian Hong, Zhengyu Pan, S. Gu, Zhongliu Zhang
{"title":"An Investigation of the High Pressure Controlled clearance Dead weight Piston Gauge","authors":"Bian Hong, Zhengyu Pan, S. Gu, Zhongliu Zhang","doi":"10.1109/ICSAI.2018.8599365","DOIUrl":"https://doi.org/10.1109/ICSAI.2018.8599365","url":null,"abstract":"This paper introduces a controlled-clearance dead-weight piston gauge for pressure up to 1500MPa. A research has been made carefully on the dependence of the fall rate of the piston to jacket pressure, the dependence of the jacket pressure to the measuring pressure and the variable rule of the characteristic parameter of the piston-cylinder assembly. The uncertainty of diameters of piston is better than $0.1mu m$. The uncertainty of the piston gauge is 0.02% $(k=3)$, the sensitivity of which is $0. 03MPa.$ The pressure is deduced by the piston gauge based on Heydemann-Welch(H-W) model.","PeriodicalId":375852,"journal":{"name":"2018 5th International Conference on Systems and Informatics (ICSAI)","volume":"108 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133526933","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
Detecting Multiple Information Sources Based on the Quantum Walk 基于量子行走的多信息源检测
2018 5th International Conference on Systems and Informatics (ICSAI) Pub Date : 2018-11-01 DOI: 10.1109/ICSAI.2018.8599345
Xin Wang, Yi Zhang, Kai Lu, Xiaoping Wang, Kai Liu
{"title":"Detecting Multiple Information Sources Based on the Quantum Walk","authors":"Xin Wang, Yi Zhang, Kai Lu, Xiaoping Wang, Kai Liu","doi":"10.1109/ICSAI.2018.8599345","DOIUrl":"https://doi.org/10.1109/ICSAI.2018.8599345","url":null,"abstract":"The source detection problem is the reverse of information diffusion. It is identifying information sources of the diffusion process. However, most existing algorithms have limited performance due to various reasons, therefore the application is limited. We propose an approach, namely Quantum Walk based Source Detection (QWSD), to identify the source nodes based on the continuous-time quantum walk (CTQW). The continuous-time quantum walk can be utilized to simulate the diffusion process. Therefore, we utilize the reversed quantum walk to reverse the diffusion, thus revealing the probability for a node to be a source node. It is the first time that the continuous-time quantum walk is applied to the source detection problem. Extensive experiments demonstrate that our algorithm outperforms other source detection algorithms on both synthetic datasets and real-world datasets.","PeriodicalId":375852,"journal":{"name":"2018 5th International Conference on Systems and Informatics (ICSAI)","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121929036","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
Vehicle Detection Under UAV Based on Optimal Dense YOLO Method 基于最优密集YOLO方法的无人机下车辆检测
2018 5th International Conference on Systems and Informatics (ICSAI) Pub Date : 2018-11-01 DOI: 10.1109/ICSAI.2018.8599403
Zhi Xu, Haochen Shi, Ning Li, Chao Xiang, Huiyu Zhou
{"title":"Vehicle Detection Under UAV Based on Optimal Dense YOLO Method","authors":"Zhi Xu, Haochen Shi, Ning Li, Chao Xiang, Huiyu Zhou","doi":"10.1109/ICSAI.2018.8599403","DOIUrl":"https://doi.org/10.1109/ICSAI.2018.8599403","url":null,"abstract":"In this paper, a deep neural network model based on small target detection under UAV platform is designed. Due to the One-stage detection model like YOLO having novel structure and great industrial application potential, this paper proposes a new model of detection based on YOLOv2 structure. Faced with missed detection problem of small target, a series of improved schemes are proposed, which are suitable for small vehicles’ detection under aerial view angle, and can achieve real-time detection, including dense topology and optimal pooling strategy.","PeriodicalId":375852,"journal":{"name":"2018 5th International Conference on Systems and Informatics (ICSAI)","volume":"94 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124075728","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: 41
Mining And Application Of Teaching Data : A new conception of multimedia teaching assessment based on residual calculation method 教学数据的挖掘与应用:基于残差计算方法的多媒体教学评估新构想
2018 5th International Conference on Systems and Informatics (ICSAI) Pub Date : 2018-11-01 DOI: 10.1109/ICSAI.2018.8599430
Daomeng Xu, Fang'ai Liu, Lu Jiang, Weiwei Zhang
{"title":"Mining And Application Of Teaching Data : A new conception of multimedia teaching assessment based on residual calculation method","authors":"Daomeng Xu, Fang'ai Liu, Lu Jiang, Weiwei Zhang","doi":"10.1109/ICSAI.2018.8599430","DOIUrl":"https://doi.org/10.1109/ICSAI.2018.8599430","url":null,"abstract":"In recent years, more and more attention has been paid to the management of teaching time in colleges. However, many researches have showed that there are some irregular differences between the teaching time regularities of different teachers and the standard teaching time prescribed by the school. In order to solve the problem more efficiently, a novel evaluation indicator system of teaching is proposed based on the large-scale multimedia teaching data about college multimedia teaching courses. Specifically, we firstly construct a teaching evaluation model based on PT (Point of Time) and LT (Length of Time), which explores the data information of the start-point and the end-point of teacher's classroom teaching completely. And then the RC(Residual Calculation) method is utilized to compare the vector fitting between teachers' behavior data and class standard data, since RC evaluation can effectively offer the data representations of teaching behavior. Therefore, the proposed evaluation indicator system of teaching provides an objective reference for the management of teaching time in colleges.","PeriodicalId":375852,"journal":{"name":"2018 5th International Conference on Systems and Informatics (ICSAI)","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129180766","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: 1
Recommendation on Keyword Combination of News Headlines 新闻标题关键词组合推荐
2018 5th International Conference on Systems and Informatics (ICSAI) Pub Date : 2018-11-01 DOI: 10.1109/ICSAI.2018.8599358
S. Weng, Jing-Yi Wu
{"title":"Recommendation on Keyword Combination of News Headlines","authors":"S. Weng, Jing-Yi Wu","doi":"10.1109/ICSAI.2018.8599358","DOIUrl":"https://doi.org/10.1109/ICSAI.2018.8599358","url":null,"abstract":"The use of social networking sites have been growing dramatically. This phenomenon promotes most news agencies to use social media platforms rather than traditional media platforms for news releases. The main differences between social and traditional media platforms are “Real-time news release” and “cross-platform extensions Contents posted on social media platforms require speed and richness. Therefore, web news editors find it relatively difficult to write an article with good title in a short time that attracts audience to click in and read through. In this study, we analyzed selected “web news headlines with high page views” to identify catchy headlines and similarities of keywords. We used dimension reduction method as our primary technique to identify the best keyword combinations that help news editors to write attractive news for higher page views and more actual readers on the social media platforms.","PeriodicalId":375852,"journal":{"name":"2018 5th International Conference on Systems and Informatics (ICSAI)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129456251","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: 1
Coordinated and Voltage Sharing Control for Input-Parallel and Output-Series Connected PV DC Boost Converter 输入并联和输出串联型PV直流升压变换器的协调和电压共享控制
2018 5th International Conference on Systems and Informatics (ICSAI) Pub Date : 2018-11-01 DOI: 10.1109/ICSAI.2018.8599456
Ming Li, Shengshan Li, Yanbo Che, Jinhuan Zhou
{"title":"Coordinated and Voltage Sharing Control for Input-Parallel and Output-Series Connected PV DC Boost Converter","authors":"Ming Li, Shengshan Li, Yanbo Che, Jinhuan Zhou","doi":"10.1109/ICSAI.2018.8599456","DOIUrl":"https://doi.org/10.1109/ICSAI.2018.8599456","url":null,"abstract":"PV system integration with VSC-HVDC technology has been significantly developed in the past decades. The photovoltaic DC boost integration and grid-connected system (PV-HVDC) is composed of DC boost converter and modular multi-level converter(MMC). Input-parallel and output-series(IPOS) connected DC/DC converter is adapted to increase the output voltage of PV plants. As there are multiple operation modes of the system, the DC/DC converter should be controlled coordinately to assure stable operation of system. A communication-less coordinated control strategy that the DC boost converter can switches the control mode according to the variation of DC bus voltage is proposed in this paper. When the error between the DC bus voltage and the rated value exceeds the dead zone, DC boost switches to constant output voltage mode, and the stability of DC bus voltage can be maintained. In addition, an output voltage sharing control strategy is designed for the IPOS connected converter to achieve coordinated and stable operation between sub modules. The proposed control strategy is evaluated based on time-domain simulation studies in PSCAD using a 1MW PV-HVDC system. The results show that the proposed strategy enables the stable operation of the system in various conditions.","PeriodicalId":375852,"journal":{"name":"2018 5th International Conference on Systems and Informatics (ICSAI)","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122743361","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: 1
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