健壮性

This method represents the virtual objects in Euclidean space instead of in affine space, which is consistent with the popular graphics rendering tools such as OpenGL and is more common in practice. A new classification based local and global tracking strategy to match features between the reference image and the currently frame directly is presented, which enables the augmented reality system working effectively even under large changes of viewing angles. A novel affine coordinate system definition method based on a collection of feature points is also proposed, which makes the tracking method effective even when not all the reference points are detected during the whole process, as long as there are at least four pairs of reference points correspondences.

该方法以仿射变换为桥梁来建立欧氏空间下的摄像机坐标系与世界坐标系之间的变换关系，它与OpenGL等当前流行的图形渲染工具一致，具有更强的通用性；采用基于分类的自然特征匹配策略，能够在视角和视点发生大幅度变化情况下依然正常工作；提出基于特征点集合的仿射坐标系定义方法，使增强现实系统在最小配置下只需4点追踪成功即可完成注册，比需要6点的透视投影方法具有更好的健壮性和精确性。

The specific catchment area is set as the calculated objective to be compared.

文中首先从SCA的定义出发，建立了SCA的计算表达式，然后构建了表达式已知的4种数学曲面模拟DEM，最后通过SCA的计算值和理论值的统计分析，定量地描述了5种路径算法所具有的精度，并从算法复杂度、时间效率、健壮性、存储结构、格网结构及流向计算精度方面对路径算法进行了综合评价。

The formalized description of MSaga model is presented in this dissertation. The FRACAS workflow based on J2EE platform is implemented. The architecture of MSaga transaction model and its detailed design are realized. The reliability and stability of FRACAS are improved and so FRACAS has the ability of handling exception.

本文给出了MSaga模型的形式化描述，并且完成了基于J2EE平台的FRACAS系统，MSaga事务模块的体系结构和具体设计与实现，提高了FRACAS软件的可靠性和健壮性，使得FRACAS软件具备一定的异常处理能力。

Using the uniform information channels and the technology of SOAP and COM/DCOM/COM+, information integration among tool management system, ERP/MRPII, CAM and CAPP system is come true. Finally, the distributed tool management system is developed in using mutil-tired Client/Server model as the frame of software. It has the functions of tool general management, searching milling cutting data for CAM by providing the milling cutting data e-book and computer aided tool selection for CAPP by using expert system. The tool management system offers the tool-coding function, too. The study of tool management system in DNC improves the level of tool management and the flexible of arranging production, haleness and the automatic extent of DNC systems.

依托DNC系统统一的、强大的通信平台和采用SOAP、COM／DCOM／COM~+信息集成技术，实现了刀具管理系统和上层管理系统ERP／MRPⅡ、CAD／CAM／CAPP系统、下层数控加工设备之间的信息集成，并采用三层Client／Server软件体系架构开发了相应的分布式刀具管理系统，实现了刀具的日常管理和调度功能，并建立了一套适合DNC系统使用的刀具编码原则和刀具辅助编码系统，应用铣削用量电子手册为CAM提供铣削用量查询功能和运用知识库系统为CAPP提供简易的粗铣加工使用的铣刀类型和刀具材料辅助选取功能，提高了DNC中刀具及相关信息的管理水平和刀具信息集成程度，达到实现DNC系统中刀具信息共享，提高DNC系统的生产组织柔性、健壮性及其自动化程度的目的。

Gabor filter could better extract the local features of images because of its selectivity on scale and orientation, and it is robust to variances of lighting, pose and expression. The common vector is a linear subspace classification method, which can obtain good classification results by extracting the common property of each class training samples.

Gabor滤波器因其良好的方向与尺度选择性，能很好地提取图像局部特征，对光照、姿态、表情变化有一定的健壮性；共同向量方法是一种线性子空间分类方法，利用提取的同类样本的共同属性对测试样本进行分类，在训练样本较少的情况下能够取得较好的分类效果。

Maximal likelihood principle is used for disambiguting, but it is not all right under all conditions.

为了从所有候选结果中取到正确的结果，本文使用健壮性学习算法。

We propose a new certificateless threshold signature scheme,and prove it secure in terms of robustness and existential unforgeability.

本文提出了一个新的无证书门限签名方案，并从健壮性和不可伪造性两方面证明了方案地安全性。

Using Gennaro's idea of simulatablity,we prove that the proposed scheme has the properties of robustness and unforgeability,therefore,the scheme is secure.

利用Gennaro可模拟的思想，证明了提出的方案具有健壮性和不可伪造性，故提出的方案是安全的。

Information security usually adopt coding and information hiding technology ,though digital watermark belongs to information hiding technology ,its signification and application intention are different with information hiding .The hiding information is similar to the protected color of animal ,because the sneak can not ensure whether there is hiding information when he face a great deal of information to avoid of attack .Digital watermark is enchased into multimedia product to identify copyright data .

大多数时间域水印算法提供简捷有效的水印嵌入方案，且具有较大的信息嵌入量，但对语音信号处理的健壮性较低；变换域水印算法则具有较强的抵抗信号处理和恶意攻击的能力，但嵌入和提取过程相对复杂；压缩域水印算法是直接把水印信号加在压缩音频上的方法，它可以避免压缩算法编解码的复杂过程，但稳健性不高，而且能够嵌入的水印容量不大[2][14]。

According to the concrete function that this system want to realize, for let whole system have fine expansibility, more easily maintain and getting stalwart, the system adopted the way in which the module develops of assigning to, include: Books read and search module, books classify and manage the module, BBS forum module, distillate section and investigate module, multimedia online request module, user and books recommend module.

根据该系统所要实现的具体功能，为了让整个系统具有更好的可扩展性、易维护性、健壮性，系统采用了分模块开发的方式，包括：图书阅览及检索模块，图书分类及管理模块，BBS论坛模块，精华区设置与调查管理模块，多媒体在线点播模块，用户推荐图书管理模块。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。