{"title":"Research on text categorization model based on LDA — KNN","authors":"Weihua Chen, Xian Zhang","doi":"10.1109/IAEAC.2017.8054520","DOIUrl":"https://doi.org/10.1109/IAEAC.2017.8054520","url":null,"abstract":"In the text classification, The similarity between the text need to be calculated, but the existing classification methods only consider the similarity between feature words and categories and does not involve the semantic similarity between feature words. In this paper, a new classification model LDA (Latent Dirichlet Allocation) — KNN (K-Nearest Neighbor) is proposed. LDA is used to solve the problem of semantic similarity measurement in traditional text categorization. The sample space is modeled and selected by this model. In the reduced feature space, KNN classifier is used to classify the sample. The experiment was based on the Matlab software platform, and the data set was obtained from the Chinese corpus of Fudan University, and the high precision classification result was obtained with the average value of 0.933. LDA-KNN model is compared with MI(Mutual Information)-KNN model and LSI(Latent Semantic Index)-KNN model. The results show that LDA-KNN model has superior classification performance in automatic text categorization.","PeriodicalId":432109,"journal":{"name":"2017 IEEE 2nd Advanced Information Technology, Electronic and Automation Control Conference (IAEAC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115520966","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}
{"title":"Design of simple electronic organ based on single chip microcomputer","authors":"Jianbo Zhang, Yin Qun","doi":"10.1109/IAEAC.2017.8053970","DOIUrl":"https://doi.org/10.1109/IAEAC.2017.8053970","url":null,"abstract":"The electronic organ uses the STC89C52 microcontroller as the main control chip. It uses the 4 ∗ 4 keyboard circuit mode to choose tones and tone value is displayed pitch by the common cathode LED digital tube display. It can use the independent key to play or pause music. The simple electronic organ has 16 tone and can play songs. The paper describes the generation principle of the tone and the style of the rhythm control. It produces how to use PROTEUS and KEIL software to carry out simulation and debugging. Through software design and hardware debug show that this system not only brings out playing musical composition basic function, but also its design is concise and is apt to understand. In this design, the result is good.","PeriodicalId":432109,"journal":{"name":"2017 IEEE 2nd Advanced Information Technology, Electronic and Automation Control Conference (IAEAC)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128761831","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}
{"title":"Application of HHT in SRM fault feature extraction","authors":"Ruikun Yang, Ruiqing Ma, B. Peng","doi":"10.1109/IAEAC.2017.8053976","DOIUrl":"https://doi.org/10.1109/IAEAC.2017.8053976","url":null,"abstract":"Switched Reluctance Machine (SRM) has magnetic field with strong saturation nonlinearity features, complex mathematical models and its fault output is mainly unsteady signals of strong coupling multi-physical field, which easily floods effective fault characteristics and make it difficult to extract. In this paper, Hilbert-Huang transform (HHT) is introduced to SRM fault feature extraction method to solve the problems aforesaid. Firstly, Empirical Mode Decomposition(EMD) is utilized to decompose the bus current of the faulted motor into several simple Intrinsic Mode Function(IMF) to resolve the problem of unsteady characteristics of complex fault signals. Secondly, primary IMF components are selected to form the matrix of initial parameters to calculate both the energy of singular values and the parameters of energy entropy of the matrix, which is used as a feature vector. Finally, multi-classifier based on support vector machine (SVM) are used to identify the extracted small-sample fault feature vector for classification. After verification by simulation, this method can effectively reduce the complexity of the fault signals, redundant data of faults and increase the accuracy rate of fault identification. Its application in SRM fault diagnosis has theoretical and practical value.","PeriodicalId":432109,"journal":{"name":"2017 IEEE 2nd Advanced Information Technology, Electronic and Automation Control Conference (IAEAC)","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117079025","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}
{"title":"A face recognition method based on LBP feature for CNN","authors":"Hongshuai Zhang, Zhiyi Qu, Liping Yuan, Gang Li","doi":"10.1109/IAEAC.2017.8054074","DOIUrl":"https://doi.org/10.1109/IAEAC.2017.8054074","url":null,"abstract":"Face recognition is a kind of biometrics which based on the facial feature information of human. And face recognition has wide application value in computer information security, medical treatment, security monitoring, human-computer interaction and finance. Face feature extraction is the key of face recognition technology, and it is related to the selection and recognition of face recognition algorithm. Local Binary Pattern is a texture description method that describes the local texture feature of an image in a gray-scale range. In recent years, many researchers have successfully applied it to facial feature description and recognition in face recognition, and achieved remarkable results. Convolutional Neural Networks is one of the most representative network structures in deep learning technology, and it has achieved great success in the field of image processing and recognition.","PeriodicalId":432109,"journal":{"name":"2017 IEEE 2nd Advanced Information Technology, Electronic and Automation Control Conference (IAEAC)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122806986","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}
{"title":"A radar-based blind spot detection and warning system for driver assistance","authors":"Guiru Liu, Lulin Wang, Sha Zou","doi":"10.1109/IAEAC.2017.8054409","DOIUrl":"https://doi.org/10.1109/IAEAC.2017.8054409","url":null,"abstract":"This paper proposed a blind spot detection & warning system (BSDWS) for daytime and nighttime conditions. The proposed BSDWS included system architecture, radar system structure and algorithms, Intermediate frequency (IF) signal processor, motive target detector and blind spot area calibration method and system control strategy. Line frequency modulated continuous wave (LFMCW) millimeter-wave radar system was used to monitor the moving targets which were into the blind spot warning area behind the vehicle. Based on clutter distribution model, a cell greatest, smallest and averaging constant false-alarm rate (CGSA-CFAR) detector was proposed to maintain higher detection rate and low false detection rate by adjustment threshold in time based on the noise intensity, which was estimated according to the mean and standard deviation. The BSDWS was implemented on ADI DSP-based embedded platform. System was calibrated and tested on the Chery Arrizo7 car. Under daytime and nighttime conditions, the early average warning rates were up to respectively 98.38% and 98.34%. The experimental results show that the proposed BSDWS can really detect the moving targets which were into the behind warning area of the vehicle and give warning to driver effectively in various daytime and nighttime environments.","PeriodicalId":432109,"journal":{"name":"2017 IEEE 2nd Advanced Information Technology, Electronic and Automation Control Conference (IAEAC)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132695105","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}
Chen Junfeng, Li Wuzhou, Suo Wenchao, Wang Zegang, Xu Penghui, Wang Weilong
{"title":"Robustness analysis for rotorcraft pilot coupling with helicopter flight control system in loop","authors":"Chen Junfeng, Li Wuzhou, Suo Wenchao, Wang Zegang, Xu Penghui, Wang Weilong","doi":"10.1109/IAEAC.2017.8053978","DOIUrl":"https://doi.org/10.1109/IAEAC.2017.8053978","url":null,"abstract":"Robustness analysis method is proposed for rotorcraft pilot coupling with helicopter flight control system in loop. Combining with the lateral identification model of BO-105 helicopter, McRuer's pilot model, and the designed stability augmentation system, frequency domain model is established for rotorcraft pilot coupling analysis. μ analysis method and performance specifications in ADS-33E are adopted to compare robust performances of the closed loop, furthermore, the worst case in uncertain model set is studied using robust performance detection. Moreover, the properties of root locus, damping ratio and mode frequency are studied from flight control system aspect. Feasible measures to improve the robust performance are discussed from the controller design consideration. Results show that the analysis method proposed can not only reveal the physical nature of coupling qualitatively, but also calculate the performances and boundaries quantitatively, which have theoretical reference significance in flight control system design.","PeriodicalId":432109,"journal":{"name":"2017 IEEE 2nd Advanced Information Technology, Electronic and Automation Control Conference (IAEAC)","volume":"53 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114575955","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}
{"title":"Robust device-free fall detection using fine-grained Wi-Fi signatures","authors":"Wenchang Cao, Xinhua Liu, Fangmin Li","doi":"10.1109/IAEAC.2017.8054245","DOIUrl":"https://doi.org/10.1109/IAEAC.2017.8054245","url":null,"abstract":"Fall is one of the main threats to the health care of elderly living alone. If not timely treated, the elderly will be threatened with death. Traditional fall detection systems based on vision, sensor networks or wearable-device are either intrusive to user's daily life, or sensitive to the changing ambient environment. However, most of them have not fully taken the dynamic environment factors into account, which makes them un-robust and hinders them from being applied in practice. In this paper, we propose a robust and unobtrusive fall detection system using off-the-shelf Wi-Fi devices, which gather fluctuant wireless signals as indicators of human actions. Specifically, we design a lightweight classifier to eliminate the “bad antennas” in channel state information (CSI) so that we can extract features from the best CSI stream; by which, the negative effects aroused by the dynamic surroundings can also be removed. We also design a novel method to intercept the valid segment of signal of fall action by utilizing wavelet analysis and dynamic time window. Finally, we implement a full robust device-free fall detection system based on the proposed novel methods. In a typical indoor environment, the recognition accuracy for the fall is 91%, and the false alarm rate is only 0.06%. Experimental results show that our system is robust to the complex indoor radio frequency environments and achieves good performance.","PeriodicalId":432109,"journal":{"name":"2017 IEEE 2nd Advanced Information Technology, Electronic and Automation Control Conference (IAEAC)","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121690585","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}
{"title":"Comparative study between passive PFC and active PFC based on Buck-Boost conversion","authors":"I. Safwat, Xiahua Wu","doi":"10.1109/IAEAC.2017.8053974","DOIUrl":"https://doi.org/10.1109/IAEAC.2017.8053974","url":null,"abstract":"Electric power quality has become an important part of power systems and electric machinery, so the research on harmonic reduction and enhancement of Power Factor (PF) has become intensified. In this paper, a comparison between passive Power Factor Corrector (PFC) traditionally used in the power systems and an active PFC type based on buck boost conversion is drawn according to harmonic distortion in source current and its effect on input source PF. The focus of this work is on single phase Buck-Boost PFC, modified Buck-Boost PFC and bridgeless Buck-Boost PFC out of many other types of Buck-Boost PFC. These types were modeled using POWER-SIM toolbox in Simulink and the input power factor (PF) and total harmonic distortion (THD) for each type are determined and analyzed.","PeriodicalId":432109,"journal":{"name":"2017 IEEE 2nd Advanced Information Technology, Electronic and Automation Control Conference (IAEAC)","volume":"61 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132296835","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}
{"title":"Research on the seismic signal denoising with the LMD and EMD method","authors":"J. Yu, Ze Zhang","doi":"10.1109/IAEAC.2017.8054119","DOIUrl":"https://doi.org/10.1109/IAEAC.2017.8054119","url":null,"abstract":"In the paper, the LMD (Local mean Decomposition) and EMD(Empirical Mode Decomposition) method are selected to denoise the sensible earthquake signal, the paper analyzes resulting conclusions and compares the denoising performance of the two methods. Experimental results show that the LMD and EMD can both achieve capabilities for denoising signals self-adaptively and improve the quality of signals with noise simultaneously. Two parameters, Correlation Coefficient (NC) and Signal to Noise Ratio(SNR), are adopted to evaluate performance of two algorithms. Corresponding data indicates that components obtained in the decomposition of the seismic signal using LMD have higher correlation degree than that using EMD, meanwhile, the filtered signal owns higher SNR value, all above of which show performance of LMD is slightly more superexcellent than that of the traditional EMD in terms of denoising for seismic signals.","PeriodicalId":432109,"journal":{"name":"2017 IEEE 2nd Advanced Information Technology, Electronic and Automation Control Conference (IAEAC)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122506589","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}
Mengchao Fu, Min Yong, Yang Zhang, Ze Li, Boyang Xing
{"title":"Height control method of multi — Rotor vehicle based on auto-Disturbance-rejection control","authors":"Mengchao Fu, Min Yong, Yang Zhang, Ze Li, Boyang Xing","doi":"10.1109/IAEAC.2017.8054283","DOIUrl":"https://doi.org/10.1109/IAEAC.2017.8054283","url":null,"abstract":"Aiming at the non-direct measurement disturbances caused by the ground effect on the high-stability control of the aircraft at low altitude, it introduced a design of the height control system based on auto-disturbance rejection control technology in this paper. The use of auto-disturbance-rejection technology can be independent of the precise mathematical model of the aircraft system, which can be applied after determining the order of the controlled system by means of experimental determination and system identification. It provided the technical support for the application of unmanned aerial platforms in low-altitude operations by observing and feedforward compensating for the negative effects caused by turbulence disturbances on the height of the aircraft, which greatly improved the stability of the unmanned aerial vehicle's altitude control when it is flying at low altitude.","PeriodicalId":432109,"journal":{"name":"2017 IEEE 2nd Advanced Information Technology, Electronic and Automation Control Conference (IAEAC)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131412699","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}