New multi - class support vector algorithm and its application in fault diagnosis 一种新型多分类支持向量算法及其在故障诊断中的应用
The mathematical model of attitude solving algorithm on high dynamic aircraft was established , and the method which used rotation vector algorithm to solve attitude angle was discussed , and the method was compared with quaternion 摘要建立了高动态飞行器姿态解算的数学模型,探讨了利用等效旋转矢量法解算姿态角的方法,并与四元数法进行了比较。
Then as to the disadvantage of the tss native algorithms we bring for word a new algorithms which is bit vector algorithms base on rule length and the result of program show the performance of new algorithms is better than the native one 然后本文针对tss原始算法设计的缺陷,提出了基于规则长度的比特向量算法,仿真结果显示该算法的性能优于tss的原始算法。
Introduce the traditional two samples rotation vector algorithm and three samples rotation vector algorithm , which fit the incremental angular condition . but , the output of fiber optic gyro is angular rate of the vehicle , the error would increase serious if use traditional algorithm 由于光纤陀螺仪输出为角速率信号,而传统的旋转矢量算法输出为角增量信号,采用角增量提取算法,旋转矢量精度会大幅大降。
Reference to mpeg - 7 standards , mainly researches feature extracting schemes of video visual information . it includes histogram refinement in rgb color space , histogram in hsv color space , color coherence vectors algorithm and homogeneous texture descriptor extraction algorithm 论文中主要研究的视觉特征提取方法有: rgb颜色空间的改进直方图法、 hsv颜色空间的直方图统计、颜色相关向量法和提取同类纹理描述符算法。
3 . to meet the real - time demand in the robot soccer competition , this thesis proposed a color image segmentation method using improved threshold vector algorithm in yuv color space . the new algorithm can classify 8 colors in one time , so the speed of the algorithm is improved a lot 针对足球机器人系统中对视觉系统实时性方面的具体要求,提出了一种改进了阈值向量彩色图像分割方法,对于一个未知颜色的像素点,一次计算就能够判断其颜色,并将其进行分类。
This dissertation develops research work for some fields in which ground clutter suppression algorithm may be used for airborne phased - array radar , software design of 3dt - - stap algorithm with adaptive space - frequence steer vector algorithm is completed for clutter suppression realtime processing system based on tigersharc ts101 chip 本论文围绕机载相控阵雷达的空时二维处理技术展开研究工作,主要任务是为系统选择地杂波抑制的算法,并完成以浮点dsp芯片( ts101 )为核心的基于3dt
Secondly , the improved rotation vector algorithms in the pure coning motion are discussed and the computing burden is compared with each other . lastly , computer simulations are executed to test the algorithms " performance . the results show that the rotation vector algorithms can improve the precision of the attitude calculation effectively 分析了高动态环境下捷联惯导圆锥误差的产生机理,研究了纯锥运动条件下姿态更新的旋转矢量优化算法,对各算法的计算量和精度进行了对比,最后对各算法进行了计算机仿真,仿真结果表明:旋转矢量算法能有效提高姿态算法的精度; 2
( 2 ) the influence to classification result is highly effected by using different classifier , for example , the center - vector algorithm obtains better classification results than other two algorithms . with the character feature , the average recall is 80 . 73 % , and the average precision is 82 . 94 % , and with the chinese - word feature , the average recall is 83 . 6 % , and the average precision is 85 . 97 % . different corpuses influence the classification result . for example , the average recall is 89 . 31 % and the average precision is 88 . 33 % , by using the news web pages as corpus from the web site " www . sina . com . cn " , which adopt the center - vector algorithm to structure classifier and select chinese - word as feature 对三种分类器分别以字、词为特征进行分类测试、分析发现:使用相同的分类算法,用词作为特征项,比以字作为特征的分类效果好;用不同的算法构造分类器对分类效果的影响很大,如中心向量算法在字、词特征下的分类效果优于其他两算法;在以字为特征的情况下,该算法的平均查全率80 . 73 ,平均查准率82 . 94 ;在以词为特征的情况下,该算法的平均查全率83 . 6 ,平均查准率85 . 97 ;选用语料不同对分类效果也有影响,如用新浪网( www . sina . com . cn )网页语料进行测试,使用中心向量法分类器和词作为特征的情况下,平均准确率为89 . 31 ,平均查全率为88 . 33 。
Based on these descriptions , a nd model called support vector data description ( svdd ) is founded . ( 2 ) a qualitative guide for setting those parameters in oc - svms is investigated . a multi - layer high - speed training strategy was proposed to enable support vector algorithm to handle large training data ( 2 )通过分析支持向量机中模型参数对检测结果的影响,给出了确定这些参数的一般方法;提出了一种分层式的快速训练方法,克服了样本个数和维数对支持向量算法应用的制约,提高了训练效率。