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On basis of analyzing the present research situation and existing question of Web knowledge acquisition, this dissertation mainly studies the essential technologies of concept semantic generation, the common text classification methods, user profile construction and approximate query technique based on concept. The main research works are shown as follows.

本文在分析网络知识获取相关技术的研究现状和存在问题的基础上,研究了概念语义生成技术、文本分类方法、典型用户会话模板生成方法以及基于概念的近似查询技术,主要取得以下研究成果:(1)借助NMF算法的分解结果具有实现上的简便性以及分解形式和分解结果可解释性的优点,提出一种基于NMF的概念语义生成方法。

According to the stability of vanishing points of the projected lines on the image of a group of lines at infinity,the algorithms for camera calibration and indoor visual navigation of the autonomous mobile platform based on parallel s are proposed.

根据一组空间直线上的无穷远线素集在视平面上所形成的消失点对直线的平移具有稳定性的特点,提出了基于平行线的摄像机参数标定和自主移动平台室内视觉导航算法。

According to the stability of vanishing points of the projected lines on the image of a group of lines at infinity, the algorithms for camera calibration and indoor visual navigation of the autonomous mobile platform based on parallels are proposed.

根据一组空间直线上的无穷远线素集在视平面上所形成的消失点对直线的平移具有稳定性的特点,提出了基于平行线的摄像机参数标定和自主移动平台室内视觉导航算法。

This method is based on our blowup sampling method of algebraic curves, which solves the difficult problem of sampling around singular points in essence.

这种逼近建立在所提出的代数曲线胀开采样的基础上,这种胀开采样算法从本质上解决了奇异点周围采样难的问题。

Seeing that many researchers devoted themselves to the study of catenary method in recent years. Based on the standard curve of the catenary, the catenary algorithm of two-end-fixed cableway was studied in this paper, which established state coordinate equation and which used the numerical value method to analyze non-linear equations under the condition offeree equilibrium and condition of deformation compatibility.

为此,近年来不少学者致力于单跨架空索道悬链线理论的研究,本文在此基础上,从索道悬链线的标准线形出发,通过建立状态协调方程,来研究架空索道的悬链线精确算法,计算上采用满足力平衡和变形相容条件为基础的数值分析方法来求解非线性方程组。

This paper presents the local color transfer approach based on the simple statistics and gradient domain information of images. Our approach proposes a sketching interface, can preserve the color details of source image, and can extend to colorization problem for improving the speed of colorization.

提出一种基于图像的简单统计信息和梯度域信息的局部颜色迁移算法,其中提供了简单易用的操作界面,在迁移过程中能够保持源图像的颜色细节;将其推广到灰度图上色问题,可有效地提高上色速度。

Finally, based on the research results of all the above methods, we finished a configurable speaker recognition system which can be used to further study.

在上面的各种算法的研究基础上,最后完成了一个可配置的说话人识别系统,可供进一步的学习研究之用。

First,an optimal filtering operator on the continuous fractional Fourier domain is provided according to the orthogonality principle about the linear minimum mean square error estimation,and then,a discrete algorithm of the filtering operator is further proposed.

首先由线性最小均方误差估计的正交条件出发,得到了连续分数阶傅立叶域上的等效Wiener滤波算子的求解方法;在此基础上,进一步给出了滤波算子的离散化算法。

Based on factorization method the network topology of radial power network and the topology of factor graph are analyzed and it is proved that they two topologies are the same, on this basis a Newton power flow algorithm that possesses similar program to branch-oriented forward/backward sweep algorithm is developed.

基于图上因子分解法对辐射状电网的网络拓扑和因子图的拓扑进行了分析,证明2者是相同的,在此基础上开发了与面向支路的前代、回推法具有相似程序实现形式的牛顿潮流算法。

In view of this, a dynamic reconfiguration fault-tolerance model is presented in view of system architecture, and the data distribution and operations in the model are described.

鉴于此,从体系结构上提出了动态重构容错模型,阐述了容错模型的数据分布和操作,并在此基础上描述了动态重构容错算法。

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