排序方式: 共有104条查询结果,搜索用时 224 毫秒
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时间规划的关系矩阵法 总被引:14,自引:0,他引:14
本文给出一种时间关系的关系矩阵描述方法,基于这种描述,提出了一种时刻表安排的新算法.这种算法在一定的假设条件下,是完备的且仅具有多项式的计算复杂性.对于一般情况,本方法也给出较有效的算法. 相似文献
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基于激光雷达的移动机器人实时位姿估计方法研究 总被引:1,自引:1,他引:1
位姿估计是移动机器人研究中的一个关键问题,对于运动目标跟踪、机器人导航、地图
生成等具有重要意义,提出了一种基于二维激光雷达的实时位姿估计方法,包括基于Hough变
换的切线角度直方图算法和迭代切线加权最近点算法两部分.两种算法的结合和切线信息的引
入.有效地解决了传统方法无法解决的局部最小值、类孔径、大计算量等问题.仿真数据和室外
环境实际数据的大量实验结果表明它具有精度高、速度快、适用性广和对噪声、遮挡和类孔径问
题鲁棒性高的特点. 相似文献
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汉语文语转换系统(TTS) 总被引:7,自引:3,他引:4
文章讨论了一个典型的汉语文语转换系统的实现。首先介绍了系统的整体框架及其各个功能模块,然后分析了系统的特点及其存在的问题,最后从两方面讨论了改进系统的具体思路:提出了一种简单而有效的基音周期提取算法,验证了上下文环境在提高合成语音自然度中的作用。 相似文献
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Based on a constructive learning approach,covering algorithms,we investigate the relationship between support vector sets and kernel functions in support vector machines (SVM).An interesting result is obtained.That is,in the linearly non-separable case,any sample of a given sample set K can become a support vector under a certain kernel function.The result shows that when the sample set K is linearly non-separable,although the chosen kernel function satisfies Mercer‘s condition its corresponding support vector set is not necessarily the subset of K that plays a crucial role in classifying K.For a given sample set,what is the subset that plays the crucial role in classification?In order to explore the problem,a new concept,boundary or boundary points,is defined and its properties are discussed.Given a sample set K,we show that the decision functions for classifying the boundary points of K are the same as that for classifying the K itself.And the boundary points of K only depend on K and the structure of the space at which k is located and independent of the chosen approach for finding the boundary.Therefore,the boundary point set may become the subset of K that plays a crucial role in classification.These results are of importance to understand the principle of the support vector machine(SVM) and to develop new learning algorithms. 相似文献