查询词典 representation space

It firstly presents a survey of basic concepts and knowledge. Then it analyses the representation effectiveness of Vector Space Model and factors influencing the classification performance.

本文主要从文本表示及分类算法两个角度展开了深入的研究，首先对文本分类的基本概念和知识进行了归纳，分析了目前最为流行的向量空间模型的表示效力以及它对于分类效果的影响因素。

Chapter 6 proposes a new method of analysis performance for modern modulation systems by means of the vector space representation of digitally modulated signals and the multivariate statistical theory.

具体分为三个方面：第一，同样利用了信号的矢量空间理论和多元统计分析原理，建立2FSK系统的矢量数学模型。

This paper proposed an improved Vector Space Model representation of user single-interest together with its dynamic learning algorithm. Experiment shows that the algorithm can catch and record user's latest interest in time, and can self-adaptively adjust and update user profile.

本文提出了一种改进的向量空间模型用户单兴趣表示法及其动态学习算法，实验表明该算法能够实时捕捉和记录用户最新的兴趣需求，并能自适应地调整和更新用户模板。

In the personalized recommending test, the system taking the new method has better effect than that taking the improved Vector Space Model representation.

个性化推荐测试中，采用这种基于SSN的用户多兴趣建模方法的系统其推荐效果要好于采用前一种改进的VSM用户单兴趣建模方法的系统。

For instance, a bitmap representation of an entire 640-by-480-pixel, 16-color Video Graphics Array screen requires more than 150 KB; a 1024-by-768 image with 24 bits per pixel requires more than 2 MB. Metafiles usually require much less storage space than bitmaps.

对于位图而言它占用空间的大小取决于图象的大小和颜色数量（也就是分辨率和像素位数4S）。

In the scientific system, the perception is not entirely passive rather than a demand of "expression", as the same as in the mythical and scientific system, then gradually appear some diathesis of representation. These two diatheses are combined as the idea of the space-time of the objectives and the notion of things and their attributes.

在科学体系中，&知觉&并不全然是被动的，而且和在&神话&与&语言&中一样，首先是一种&表达&的要求，然后逐渐增加&再现&的因素，这两种因素的结合，形成作为知识对象的空间、时间以及事物和属性的观念。

In this paper the hinging hyperplanes model is extended and the deficiency is remedied at a twodimensional space. The extended model has enough representation capability, which theoretically ensures the possibility to achieve optimal approximation.

本文在二维空间上弥补了&链接超平面&模型的局限性，经扩充后的模型在二维空间上有充分的表示能力，从理论上保证了扩充后的模型可以达到最佳逼近。

In this paper the hinging hyperplanes model is extended and the deficiency is remedied at a two-dimensional space. The extended model has enough representation capability, which theoretically ensures the possibility to achieve optimal approximation.

本 文在二维空间上弥补了&链接超平面&模型的局限性，经扩充后的模型在二维空间上有充分的表示能力，从理论上保证了扩充后的模型可以达到最佳逼近。

In order to satisfy the requirement of various space mission simulations and analysis, a standard interface and common service for access to the system resources, that is, resource access protocol, is designed, thus the independencies of resource storage manner and resource representation are realized. The design of resource access protocol introduced the object-oriented hierarchical method.

结合航天任务的仿真和分析对资源管理的要求，总结出资源管理系统应具备的功能和特点；从对分布式仿真资源进行高效管理和使用的角度着手，提出了基于代理的系统构建方式；进而设计了资源管理系统的体系结构，并分别探讨了体系结构的四个层次：基础资源层、通用操作环境、仿真应用接口层和管理控制层。

To make it clear, the problem is spited into four aspects, which are "Information Extraction Out-of-Order","Information Publishing Out-of-Order","Information Management Out-of-Order"and"Information Representation Out-of-Order", whose solution is the emphases of this thesis. In this paper, a brand-new research field named"Digital Information Publishing Space DIPS"is put forward, where Information can be published with full use of computer and network environment.

同时，还指出无序性具体表现的几个方面分别是信息资源提供无序性、信息资源发布无序性、信息资源管理的无序性和信息资源表现的无序性，对这些方面的具体解决将是本文的重点。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。