查询词典 hierarchical classification

On large amount of document category quantity,hierarchical text classification is an effective approach.

在分类过程中，常常把文档类别看成是处在同一个平面层次上，互不相交的。

Meanwhile, generative process planning based on hierarchical knowledge classification and successive reasoning is achieved.

同时，建立了基于零件及其工艺数据知识的分层知识表达与层次式推理机制，从而实现了CAPP的创成式设计。

Brings forward data classification model and hierarchical structure management model on the basis of analyzing the data types that needs to manage.

描述了PDM系统在企业中的应用和结构与配置管理在产品信息管理系统中的作用，分析了产品结构与配置管理的功能特点，并根据管理数据的类型，提出了数据分类组织和结构分层管理模型，同时简述了数据建模时应该兼顾的主要问题，最后给出了结构与配置管理模块的结构模型。

A divisive hierarchical clustering algorithm for blind classification of radar emitters based on grey relational measure is proposed.

提出了一种基于灰关联测度的分裂式层次聚类算法来实现雷达辐射源信号的盲分类。

The constraint classification and a hierarchical solving modeling are put forward in this paper, helpful for the validity and calculation of mechanical product layout.

本文结合机械产品布局设计问题，提出了有利于解决机械产品布局问题的有效和可计算的布局约束及其分类，建立了分层递阶求解模型和相应的解决策略。

This text produces the different meaning of enterprise social responsibility ever appeared,builds hierarchical enterprise social responsibility classification model,analysis the rationality of it,and points out the enterprise social responsibility level that some enterprises should pay attention to.

本文介绍了历史上曾出现的各种企业社会责任的含义，建立了企业社会责任分级模型，分析了模型的合理性，并指出了一些企业应重视的社会责任层次。

To be more economic, this paper presents a new hierarchical automatic classification on Chinese texts, with some improvements on term weighting and reduction of dimensionality as wel

因此本论文在对自动分类技术进行深入研究的基础上，结合实验室原有的单层次的分类成果，实现了一个多层次的中文文本自动分类系统，并在特征加权和维数缩减方面等方面做了一定改进。

An integrated hierarchical matching method based on classification management of the road network is firstly proposed considering the different characteristics of urban roads. This method is conducive to use different matching algorithm according to both different road condition and navigation demand, and can better coordinate contradictions between the accuracy and real time of matching.

在改进现有地图匹配算法的基础上，针对城市道路的不同特点，首次提出基于道路网分级管理的分级匹配综合方法，有利于根据不同的路况和导航需求采用不同的匹配算法，可较好地协调地图匹配的准确性和实时性的矛盾。

In this paper,the algorithm of a kind of hierarchical competitive covering networks for the classification problems is proposed based on the introduction of quotient space theory,which defines granularity according to Huffman coding and Huffman coding algorithm.

文中在此基础上，利用商空间的粒度原理和霍夫曼编码的思想，对样本分布极其不均匀的分类问题，构造分层竞争覆盖网络。

Formly, HDR casts classification problems and regression problems into a unified regression problem. Clustering is performed in both output space and input space at each internal node, termed "doubly clustered" and discriminants in the input space are automatically derived from the clusters in the input space. A hierarchical probability distribution model is applied to the resulting discriminating subspace at each internal node.

在图像的分类和检索中，以前的层次判别回归方法把分类和回归统一成回归问题，在每个内部节点进行输入和输出空间的双聚类，输入空间的分类子空间可以自动从聚类中获得，再用层次概率分布模型计算判别子空间，这样就构成了输入空间由粗到精的概率分布，可以准确而且快速地实现高维数据的检索。

Certain types of sockets are ''connectionless'', most commonly

某些类型的套接字是无连接的，大多数是UDP协议。

Take it in to his nibs yourself .

你自己拿进去给头儿吧。