查询词典 hierarchical classification

We first investigate the existing classification systems like Dewey decimal classification, and Chinese classification systems and other classification systems proposed by different researchers. Secondly, we adopt top-down and bottom-up approaches to propose a subject classification framework. Thirdly, we carry out a series of pre-testing using 400 papers and tune the framework to meet the requirement of analyses of researches of LIS.

本研究首先探讨现有分类体系的适用性，再提出一套应用於分析图书资讯学研究发展的分类体系，以主题类表与复分表的型式呈现整体的架构，并进行前测的工作，实际分析400篇学术论文，调整提出的主题分类体系。

Especially since Lindley and Smith (1972) addressed the thought of hierarchical prior distribution and Han (1997) provided the methods to construct hierarchical prior distribution, more achievements have been made on hierarchical Bayesian methods to be used for solving zero-failure data problem.

所谓λ的多层先验分布的构造方法——减函数法，主要是选取λ的减函数作为λ的第一层先验密度函数的核，第二层先验分布——第一层先验分布中超参数的先验分布取均匀分布。

This paper analyzes on the necessity of hierarchical planning,discusses on the concrete scheme of hierarchical planning while library removes the stack room or replaces the stack room,and probes into the advantages of obligating the vacant sites by forecasting scientifically and the applicability of hierarchical planning.

分析了图书馆书库管理中分层规划的必要性，讨论了图书馆在书库搬迁或倒库时分层规划的具体方案，对科学预测预留空位的优越性、分层规划的适用范围进行了探讨。

To improve the classification precision,the paper proposes to use rule-based classification methods on top of statistics-based methods in hierarchical Web classification.

针对这一局限性，结合基于规则的自动分类技术的优点，提出一种基于统计-规则方法的网页层次分类技术。

The main purpose of this paper is to propose a unsupervised clustering-based method to pre-extract the support vector for training the SVM in light of the theory that the classification facet of SVM is determined by support vector only. By analyzing the limitation existed in current multi-class classification methods, and taking into account comprehensively the separability of the class set of nodes, a hierarchical classification method of SVM binary tree based on tree classifier with optimized overall performance is designed.

针对SVM的分类面仅由支持向量决定的理论，提出一种基于无监督聚类方法来预抽取支持向量，训练向量机；并分析现有多类分类方法所存在的弊端，基于综合考虑节点的类集合可分性，设计一种基于树分类器整体性能最优的SVM二叉树层次分类方法。

In addition, a variant top-down level-based hierarchical text classification technique is used to mine much specific interests, which also can show mined interests in a conceptual hierarchical structure.

此外，本文采用自顶向下的层次化分类方法挖掘更加具体的博客作者的兴趣，并且兴趣可以以概念层次结构的形式展现。

Based on Hierarchical Intelligent Cuttings algorithm and non-conflict function, a novel IP packet classification named HICNCH( the algorithm based on Hierarchical Intelligent Cuttings and Non-Collision Hash) is proposed. Also the least square method is proposed to improve the rule of cutting tree and cutting efficiency is improved greatly.

然后基于层次智能切割算法，同时构造无冲突的哈希函数，提出了一种新的IP分类算法，即基于层次智能切割和无冲突哈希算法，并且提出利用最小二乘法改进了层次智能切割树分割域的判定准则，使分割更加高效。

In experiment firstly used unsupervised classification to remote sensing image, made progress of manual work interpreted to make certain their attributes, then transformed their outcome to the file of classification cyclostyle, and then carried out supervised classification, it indicated that the classification precision of Poyang Lake wetland was improved through these means.

在监督分类中，采用了不同波段组合方式、主成分分析等手段，经过基于误差矩阵的精度评价分析表明，这些手段可以提高鄱阳湖湿地遥感影像分类的精度。

The contents included the followings : Nomenclature of trees , History of dendrology taxonomy , System of classification , Influences and fruit , Terms of taxonomy , Classification of tree farms , Classification of Gymnosperm , Classification of Angiosperm.

其内容如下：树木的命名、树木分类的历史、分类系统、花序及果实、分类的术语、木本蕨类之分类、裸子植物之分类与被子植物之分类。

For example, Keyfitz made the classification of the bifurcations in one state variable, without symmetry up to codimension 7; Golubitsky and Schaeffer obtained the classification of the bifurcation problems in one state variable with Z_2 symmetry, in one parameter up to codimension 3; Golubitsky and Roberts studied the classification of degenerate Hopf bifurcation in two state variables with dihedron D_4 symmetry, in one parameter up to topological codimension 2; Melbourne obtained the classification of bifurcations in three state variables with octahedral symmetry, in one parameter, up to

需要指出的是以上研究均没有考虑分歧参数的对称性，Futer，Sitta和Stewart的工作虽然考虑了分歧参数的对称性，但仅限于分歧参数与状态变量具有相同的对称性，他们得到了状态变量与分歧参数均关于二面体群D_4对称，拓扑余维数不大于1的分歧问题的分类。高守平和李养成则讨论状态变量和分歧参数均具有对称性且对称性可以不同的分歧问题，并给出了状态(来源：A770707BC论文网www.abclunwen.com)变量关于二面体群D_4对称，分歧参数关于S~1对称，拓扑余维不超过1的分歧问题的分类。本文第一章讨论两个状态变量关于二面体群D_3对称，两个分歧参数关于O(2)对称的分歧问题，给出了该类分歧问题在非退化条件q(0)≠0下所有情形的分类与相应的识别条来源：AdadaBC论文网www.abclunwen.com

This is the inheritance of the tribe of the children of Issachar according to their families, the cities and their villages.

19：23 这些城并属城的村庄就是以萨迦支派按着宗族所得的地业。

I've have enough of your garbage.

我听了你的废话。