2016 IEEE Uttar Pradesh Section International Conference on Electrical, Computer and Electronics Engineering (UPCON)最新文献_第5页

Replay attack: Its effect on GMM-UBM based text-independent speaker verification system 重播攻击:对基于GMM-UBM的文本无关说话人验证系统的影响

2016 IEEE Uttar Pradesh Section International Conference on Electrical, Computer and Electronics Engineering (UPCON) Pub Date : 1900-01-01 DOI: 10.1109/UPCON.2016.7894726

Madhusudan Singh, Jagabandhu Mishra, D. Pati

{"title":"Replay attack: Its effect on GMM-UBM based text-independent speaker verification system","authors":"Madhusudan Singh, Jagabandhu Mishra, D. Pati","doi":"10.1109/UPCON.2016.7894726","DOIUrl":"https://doi.org/10.1109/UPCON.2016.7894726","url":null,"abstract":"Spoofing is a technique to bias the system decisions towards target speakers without the physical presence of genuines. The focus of spoofing is on target speakers, resulting a sharp increase in false acceptance. The availability of high quality recording and playback devices (i.e. smart phones), have made spoof attacks by replay data a most common and easy approach, even without much knowledge about speech processing. In this work we analyze and demonstrate the seriousness of replay attacks, and then examine the vulnerability of classic GMMUBM based speaker verification (SV) system to replay data by experimental studies. Since no standard database is available, we develop a replay dataset of 34 speakers from Indian Institute of Technology Guwahati - Multi-Variability (IITG-MV) speech database, that covers all kind of variabilities. To avoid any gender biasing, we made our studies for male and female speakers independently and finally in together. Under replay attacks, for genuine 459 male and 220 female trials, the equal error rate (EER) increases from 2.61% to 15.03% and 1.82% to 34.09%, respectively. In total, the EER increases from 2.50% to 20.76%. As obvious, the degradation in EER is mainly due to increase in false acceptance ratio (FAR). The case is worsen for female speakers. It may be due to the fine spectral structures of female speakers. These observations reveal that GMM-UBM based SV system is highly vulnerable to replay attacks and needs wider attentions.","PeriodicalId":151809,"journal":{"name":"2016 IEEE Uttar Pradesh Section International Conference on Electrical, Computer and Electronics Engineering (UPCON)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129328939","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: 7

A high-gain modular multilevel DC-DC step-up converter 一种高增益模块化多电平DC-DC升压转换器

2016 IEEE Uttar Pradesh Section International Conference on Electrical, Computer and Electronics Engineering (UPCON) Pub Date : 1900-01-01 DOI: 10.1109/UPCON.2016.7894694

Varun Chitransh, M. Veerachary

引用次数: 4

Improved fluctuation behavior of SCIG based wind energy system using hybrid pitch angle controller 采用混合俯仰角控制器改善SCIG型风能系统的波动特性

2016 IEEE Uttar Pradesh Section International Conference on Electrical, Computer and Electronics Engineering (UPCON) Pub Date : 1900-01-01 DOI: 10.1109/UPCON.2016.7894706

K. A. Naik, C. P. Gupta

引用次数: 9

A systematic approach to investigate electronic and optical property of CuGaS2 using DFT 利用DFT系统地研究CuGaS2的电子和光学性质

2016 IEEE Uttar Pradesh Section International Conference on Electrical, Computer and Electronics Engineering (UPCON) Pub Date : 1900-01-01 DOI: 10.1109/UPCON.2016.7894615

Pancham Kumar, J. Sahariya, A. Soni

引用次数: 1

Simulation and optimization of Hg1−xCdxTe based mid-wavelength IR photodetector 基于Hg1−xCdxTe的中波长红外探测器的仿真与优化

2016 IEEE Uttar Pradesh Section International Conference on Electrical, Computer and Electronics Engineering (UPCON) Pub Date : 1900-01-01 DOI: 10.1109/UPCON.2016.7894691

S. Bansal, K. Sharma, N. Gupta, A. Singh

引用次数: 5

Design of GWO optimized dual UPFC controller for damping of power system oscillations 基于GWO优化的双UPFC控制器的电力系统振荡阻尼设计

2016 IEEE Uttar Pradesh Section International Conference on Electrical, Computer and Electronics Engineering (UPCON) Pub Date : 1900-01-01 DOI: 10.1109/UPCON.2016.7894678

R. Mallick, Narayan Nahak

{"title":"Design of GWO optimized dual UPFC controller for damping of power system oscillations","authors":"R. Mallick, Narayan Nahak","doi":"10.1109/UPCON.2016.7894678","DOIUrl":"https://doi.org/10.1109/UPCON.2016.7894678","url":null,"abstract":"This paper proposes the design of an optimized dual UPFC controller for damping power system oscillations, where modulation index of series converter and phase angle of shunt converter voltage are controlled simultaneously. The dual damping controller parameters are optimized by a recently reported metaheuristic optimization technique known as Grey Wolf Optimizer (GWO). This is a simple technique which can effectively optimise all the six parameters of the controller. The effectiveness of this proposed optimized dual controller is compared with PSO optimized dual controller and single independent GWO and PSO optimized controllers. The dynamic responses of speed deviation for all the controllers are considered for a step change in mechanical input power considering a single machine infinite bus system. Eigen value analysis of the system are performed and it has been observed that the performance of proposed optimised dual controller is much better in damping of low frequency oscillations as compared to others in terms of settling time, peaks of oscillations and convergence rate, thus enhancing dynamic stability to a large extent.","PeriodicalId":151809,"journal":{"name":"2016 IEEE Uttar Pradesh Section International Conference on Electrical, Computer and Electronics Engineering (UPCON)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130044327","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

A novel direct power control method for doubly fed induction generators 一种新的双馈感应发电机直接功率控制方法

2016 IEEE Uttar Pradesh Section International Conference on Electrical, Computer and Electronics Engineering (UPCON) Pub Date : 1900-01-01 DOI: 10.1109/UPCON.2016.7894734

M. Hashemnia, Seyyed Morteza Hosseini

引用次数: 0

Enhancement of Maximum Loadability during N-1 and N-2 contingencies with multi type FACTS devices and its optimization using MDE algorithm 多类型FACTS设备在N-1和N-2突发事件中最大负载能力的增强及其MDE算法优化

2016 IEEE Uttar Pradesh Section International Conference on Electrical, Computer and Electronics Engineering (UPCON) Pub Date : 1900-01-01 DOI: 10.1109/UPCON.2016.7894647

P. Malathy, A. Shunmugalatha

{"title":"Enhancement of Maximum Loadability during N-1 and N-2 contingencies with multi type FACTS devices and its optimization using MDE algorithm","authors":"P. Malathy, A. Shunmugalatha","doi":"10.1109/UPCON.2016.7894647","DOIUrl":"https://doi.org/10.1109/UPCON.2016.7894647","url":null,"abstract":"Assessment of Maximum Loadability (ML) in the transmission network simulated for single (N-1) and double (N-2) contingencies is discussed in the projected work. Static Var Compensator (SVC), Thyristor Controlled Series Capacitor (TCSC) and Unified Power Flow Controller (UPFC) are some of the Flexible AC Transmission System (FACTS) devices, which, when installed in the transmission system, helps to achieve reactive power compensation and thereby increase the system loadability. Priority indices like Contingency Severity Index (CSI) as well as Fast Voltage Stability Index (FVSI) are used to identify the optimal location and control settings of these devices. Consequently by reducing the Installation Cost (IC) of FACTS devices, the social and economical reimbursement is improved and also useful in managing the overloading of transmission lines. The proposed problem is simulated using MATLAB 7.0 and tested with the help of Western System Coordinating Council (WSCC) 9 bus system and optimized using Modified Differential Evolution (MDE) algorithm.","PeriodicalId":151809,"journal":{"name":"2016 IEEE Uttar Pradesh Section International Conference on Electrical, Computer and Electronics Engineering (UPCON)","volume":"71 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133709731","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: 4

Robust image hashing based on statistical features for copy detection 基于统计特征的鲁棒图像哈希拷贝检测

2016 IEEE Uttar Pradesh Section International Conference on Electrical, Computer and Electronics Engineering (UPCON) Pub Date : 1900-01-01 DOI: 10.1109/UPCON.2016.7894703

Mayank Srivastava, Jamshed Siddiqui, M. A. Ali

{"title":"Robust image hashing based on statistical features for copy detection","authors":"Mayank Srivastava, Jamshed Siddiqui, M. A. Ali","doi":"10.1109/UPCON.2016.7894703","DOIUrl":"https://doi.org/10.1109/UPCON.2016.7894703","url":null,"abstract":"Image hashing is one of the emergent novel approaches used extensively in the field of image forensics apart from finding its place in many of the latest techniques of the area of image indexing, image retrieval etc. Image hashing is basically used to identify the duplicate copies of the original images. Most of the image hashing algorithms has their limitations in getting the desirable performance against a particular image processing attack i.e. rotation. In this paper, we have proposed image hashing technique dominantly based on statistical features of the image which is robust to almost all kind of image processing attacks including rotation. In our proposed algorithm input image is normalized by using resizing, Gaussian filtering, color space conversion from RGB image to YCbCr and only Y component is taken for hash generation. Radon transform is then applied to the preprocessed image to produce 2-D Radon coefficients. 1-D DCT is then applied to the Radon coefficients to produce column-wise DCT coefficients. Lastly first AC coefficient from each column are taken to form the row-wise vector which is used to extract four statistical features, Mean, Standard Deviation, Kurtosis & Skewness. The extracted features form the final feature vector which is used for image identification. Many experiments have conducted to compare the proposed technique with the state-of-the-art techniques and the results shows that proposed hashing is robust to normal digital operations apart from giving excellent result against rotation.","PeriodicalId":151809,"journal":{"name":"2016 IEEE Uttar Pradesh Section International Conference on Electrical, Computer and Electronics Engineering (UPCON)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125564607","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

Design of optimal 2-DOF PID controller using GWO technique for automatic generation control of a multisource power system 应用GWO技术设计多源电力系统自动发电控制的最优二自由度PID控制器

2016 IEEE Uttar Pradesh Section International Conference on Electrical, Computer and Electronics Engineering (UPCON) Pub Date : 1900-01-01 DOI: 10.1109/UPCON.2016.7894710

M. Debnath, M. Singh, R. Mallick

引用次数: 8