查询词典 representation

It solves the problem that the unitary contour presentation can not correctly extract face contour in a face image which suffers from scale, rotation etc. The definition of the internal and external energy function is provided. At the same time, the global matching algorithm and local matching algorithm is given. The experiment shows that this presentation and the accompanying matching algorithm can be used to extract the face contour very well. So the image segmentation can be implemented by using it.②By analyzing the recognition principle of PCA method, we can conclude that the face images coming from different surrounding consist of different face image space. This is the essential reason that makes the generality of PCA method worse. Also, we give a measurement means to measure the distance from different face image space, so we can analyze face image space more conveniently.③We also construct various scale models and rotation pose models to detect the scale and rotating angle of face image to be recognized. The experiment results show that the detecting precision is very high. So it is good for face image feature extraction and face image representation.④Similarly, we construct local feature models of face image and utilize them to detect the local feature of face image. At the same time, we put forward a novel face image local feature detection algorithm, locating step by step. The experiment results show that this method can accurately detect the location of local face feature in a image.⑤A novel face image presentation model, dual attribute graph , is put forward. Firstly, it utilizes attribute graph to present the face image, then exact the local principal component coefficient and Gabor transform coefficient of thc pixels which corresponds to the nodes of the graph as the attribute of the nodes. This representation fully makes use of the statistical characteristic of the local face feature and utilizes Gabor transform to present the topographical structure of face image. So DAG has more general property.⑥Based on the DAG presentation, we give a DAG matching function and matching algorithm. During the design of the function and algorithm, the noise factor, e. g., lighting, scale and rotation pose are considered and tried to be eliminated. So the algorithm can give more general property.⑦A general face image recognition system is implemented. The experiment show the system can get better recognition performance under the noise surrounding of lighting, scale and rotation pose.

本文在上述研究的基础上，取得了如下主要研究成果：①构造了一个通用的人脸轮廓模型表示，解决了由于人脸图象尺度、旋转等因素而使得仅用单一轮廓表示无法正确提取人脸轮廓的问题，并给出了模型内、外能函数的定义，同时给出了模型的全局与局部匹配算法，实验表明，使用这种表示形式以及匹配算法，能够较好地提取人脸图象的轮廓，可实际用于人脸图象的分割；②深入分析了PCA方法的识别机制，得出不同成象条件下的人脸图象构成不同的人脸图象空间的结论，同时指出这也是造成PCA方法通用性较差的本质原因，并给出了不同人脸空间距离的一种度量方法，使用该度量方法能够直观地对人脸图象空间进行分析；③构造了各种尺度模板、旋转姿势模板以用于探测待识人脸图象的尺度、旋转角度，实验结果表明，探测精确度很高，从而有利于人脸图象特征提取，以及图象的有效表示；④构造了人脸图象的各局部特征模板，用于人脸图象局部特征的探测；同时提出了一种新的人脸图象局部特征探测法---逐步求精定位法，实验结果表明，使用这种方法能够精确地得到人脸图象各局部特征的位置；⑤提出了一种新的人脸图象表示法---双属性图表示法；利用属性图来表示人脸图象，并提取图节点对应图象位置的局部主成分特征系数以及Gabor变换系数作为图节点的属性，这种表示方法充分利用了人脸图象的局部特征的统计特性，并且使用Gabor变换来反映人脸图象的拓扑结构，从而使得双属性图表示法具有较强的通用性；⑥在双属性图表示的基础上，给出双属性图匹配函数及匹配算法，在函数及算法设计过程中，考虑并解决了光照、尺度、旋转姿势变化等因素对人脸图象识别的影响，使得匹配算法具有较强的通用性；⑦设计并实现了一个通用的人脸图象识别系统，实验结果表明，该系统在图象光照、尺度、旋转姿势情况下，得到了较好的识别效果。

In this paper, we focus on such aspect as mathematic expression in DNA and protein sequences, similarity analysis and phylogenetic tree structure. Mainly include:After summarization mathematical methods of DNA and protein sequences in detail, the paper presents a 2D graphical representation of DNA sequences based on dual nucleotide, and graphical representation of the distribution curve of sequences with nucleotide sequences of the classification.

论文在DNA和蛋白质序列的数学表示、相似性分析和进化树的构造等方面进行研究，主要工作包括：在对DNA和蛋白质序列的数学表示方法进行较为详细的综述后，提出了一种基于双核苷酸的DNA序列2D图形表示方法，利用核苷酸的分类给出了序列的分布曲线图形表示。

The differential effect of alcohol on intrusive memories and on same/shifted-view recognition support a dual representation model in which intrusions might reflect an imbalance between two types of memory representation.

那些在灾难性事件前中度饮酒的人，与环境有关的记忆受到酒精影响而变得不清晰，因此与自身感受有关的记忆被相对放大，导致更多的强迫性回忆。

The concept, symbolic play deficit in autism, was partly supported by this study. Most of children with autism could gradually develop the capacity of dual representation; and moreover, in the case of high functioning autism, symbol comprehension of triune representation remained intact. Their difficulties are more on the flexibility of functional or symbolic spontaneous play, rather than symbolic comprehension.

总结而论：自闭症儿童游戏能力的缺陷在本研究中得到部分支持，随著年龄成长，他们能逐渐发展出双重表徵的能力，三重表徵的能力发展在高功能自闭症儿童中亦未有困难，自闭症儿童象徵能力的缺陷，仍较集中在自发的功能性或象徵性游戏能力中弹性使用的部份，而非象徵理解的部分。

Tests show that, compared with an ordinal production knowledge representation, the production knowledge representation based on the database leads to an enhanced reasoning efficiency of the expert system.

实验表明，与一般顺序组织结构的产生式知识表达方法相比，基于数据库的产生式知识表达方法有利于提高专家系统的推理效率。

In order to ensure the wide representation of participants in deliberation and promote real debate and efficient deliberation,Elster proposes to adopt proportional representation,and he believes that we should consider the constitution draft process from four aspects: siz...

为确保协商参与者具有广泛的代表性，并促进真实地辩论、有效地协商，他提出应采纳比例代表制，并从规模、公开性、暴力以及利益四个方面来综合考虑制宪过程。

In Epictetus view,"representation" is not only sensual, but also rational. It closely correlate with language and conception, so that "representation" can be the object of "assent" and "judge".

爱比克泰德认为，"表象"不仅是感性的，而且是理性的，它与语言和概念密切相关，故"表象"可以成为"赞同"和"判断"的对象。

With regard to estoppel, the representation made in relation to reducing the rent, was not a representation of an existing fact.

决定是法律和公正的融合物的一个天然结果：对于修 v 的情形。

In You Jin's work, Chaotic Code include the following meanings: first, color, light and lines are the main language characteristics, and the precise, ordered and mechanical depicting techniques stand out the random order and weaken traditional pictorial expression; second, in objective representation of images, garbled symbols emphasize a certain unreal sense of subjective construction with the representation of transient images; third, the atmosphere of the picture represents sublimation and ballyhack, bustling, calm and gloomy, which emphasizes the stimulation of visual sense; fourth, the subject of chaotic code indicates floweriness, change, and grotesque idea, implying that the hidden trouble of danger, horror, unsteadiness and peril potentially exists in the rapid developments of current society and the advancement of technical information.

看由金的作品，"乱码"包含了以下意义：一，在语言特征上，以色彩、光、线为主，以严谨、有序、机械的刻画手法，呈现乱中有序的特点，削弱了传统绘画性表现；二，在表现物象上，以虚幻的影像呈现，强调一种主观营造的非现实感觉；三，画面氛围，呈现着绚丽繁华、冷静沉郁、升华毁灭的氛围，强调视觉感官的刺激；四，表达主题，营造一种绚丽繁华、瞬息万变、光怪陆离的表象，暗示当代社会的快速发展及科技资讯的发达，潜在地存在着危险、恐怖、不稳定、不安全等的隐患。

According to the problems that are encountered in designing the mathematical knowledge representation language in NKI (national knowledge infrastructure) and after the discussion of ontological assumptions for mathematical objects, two kinds of formalisms for the representation of mathematical knowledge are provided. One is a description logic in which the range of an attribute can be a formula in some logical language; and another is a first order logic in which an ontology represented by the description logic is a part of the logical language.

根据在设计NKI(national knowledge infrastructure)的数学知识表示语言中遇到的问题，并在讨论了数学对象的本体论假设的基础上提出了两种数学知识的表示方法：一种是以一个逻辑语言上的公式为属性值域的描述逻辑；另一种是以描述逻辑描述的本体为逻辑语言的一部分的一阶逻辑。

But in the course of internationalization, they meet with misunderstanding and puzzlement.

许多企业已经意识到了这一点，但在国际化的进程中，仍存在一些误区与困惑。

Inorder toaccomplish this goal as quickly as possible, we'll beteamingup with anexperienced group of modelers, skinners, and animatorswhosenames willbe announced in the coming weeks.

为了尽快实现这个目标，我们在未来数周内将公布与一些有经验的模型、皮肤、动画制作小组合作。