树形结构 meaning in English
tree structure
tree-like structure
Examples
- Aim at the characteristics of design knowledge of common parts , the knowledge has been divided into recessive knowledge fixed in the part template and explicit knowledge stored in the design resource base and managed by tree structure
针对常用件设计知识的特点，提出了把隐性知识固化于零件范本和把显性知识融入到设计资源库，并利用树形结构来组织管理的处理方法。 - In d1lp - r , a role refers to some access rights , different roles can form a tree structure , access rights corresponding to a node in the role tree contain all access rights corresponding to all descend nodes
在d1lp - r中，一个角色对应一些访问权限，不同的角色可以形成一个树形结构，角色树中一个结点对wcb上的多主体系统若干关键技术研究应的权限包含它的所有子结点对应的权限。 - This idea is not just exciting but practically attainable . this paper first provides an overview of our optimization strategy , andthen focuses on the key implementation issues of our rule - basedtransformation system for xml query optimization in a databaseenvironment
Xml的树形结构数据模型与关系模型相比本质上具有更高的复杂性，这使得xml的查询优化空间比关系模型要大许多，从而给xml的查询优化带来了困难。 - Based on the analysis of above drawbacks , this paper proposes frequent access pattern tree algorithm ( fapt ) . this algorithm includes two steps : access pattern tree method , through the pattern matching method it saves user ' s visit sequences with tree ; pruning method , it uses frequent degree to prune access pattern tree which is under the frequent degree
在分析以上不足的基础上,提出了频繁访问模式树( fapt )算法,该算法包括以下两个步骤:访问模式树的生成,通过模式匹配的方法将用户访问序列以树形结构来存储;修剪的策略,利用频繁度对访问模式树进行修剪,修剪掉其中低于频繁度的节点。 - This article , according to the common digital keyboard on the mobile communication equipment , make essential research for windows ce - embedded operation system in chinese character input technology and realize with digital keyboard . using tree - like structure that has the space complexity o ( n ) and the time complexity of o ( n ) when searching to store chinese information . chinese input method applying this kind of store technique in chinese table has the quality of high input speed and low memory space
本文就根据移动通信设备上常见的数字键盘，为windowsce嵌入式操作系统在汉字的数字键盘输入技术及其实现方面作了必要的研究；并使用了一种在查找时空间复杂度为o ( n ) 、时间复杂度为o ( n )的树形结构来存储中文信息，使用这种存储技术作为码表内存存放方式的汉字输入法具有输入速度快、占用空间少的优点。