tree n. 特里〔姓氏〕。 n. 1.树〔主要指乔木,也可指较大的灌木〕。 ★玫瑰可以称为 bush, 也可以称为 tree. 2.木料,木材;木构件;〔古语〕绞首台;〔the tree〕(钉死耶稣的)十字架;鞋楦。 3.树形(物),世系图,家系 (=family tree);【数学】树(形);【化学】树状晶体。 a banana tree 香蕉树。 an axle-tree 心棒,轴料。 a boot-tree 靴楦[型]。 a saddle-tree 鞍架。 at the top of the tree 在最高地位。 tree of Buddha 菩提树。 tree of heaven 臭椿。 tree of knowledge (of good and evil) 【圣经】知道善恶的树,智慧之树。 tree of life 生命之树,生命力的源泉【植物;植物学】金钟柏。 up a tree 〔口语〕进退两难,不知所措。 vt. 赶(猎兽等)上树躲避;〔口语〕使处于困境;穷追;把鞋型插入(鞋内)。
It introduces the architecture of the switch , hol , delay control , vlan and spanning - tree algorithm , and crossbar backplane and store - and - forward technology 介绍了线头阻塞、时延控制、虚拟局域网和生成树算法等概念以及交换机的交换矩阵和共享存储器等关键技术。
2 . a lazy decision - tree algorithm that comes from the idea of lazy classification based on model is researched on the base of the research of the traditional decision - tree 结合对决策树方法的研究,重点研究并实现了一个“懒散的基于模型的分类”思想的…懒散的决策树算法” 。
After strict test and running , using decision tree algorithm of data mining helped the enterprise makes objective decision in the analyse of the relation between appearance and reason of product fault 经过运行测试证明:将决策树算法应用到系统中,可以为产品故障现象到故障原因的分析提供比较客观的决策支持。
The minimum travel - time tree algorithm is one of the main methods to trace rays , which is based on huygens ' and fermat ' s principles and can be applied to complex geological model 摘要最小旅行时树法是目前主要射线追踪方法之一,该方法以惠更斯原理和费马原理为基础,具有适应复杂地质模型的优点,缺点是速度较慢。
Trusted third party is introduced into this system to make it capable of tracing e - cash and the withdrawer . currently the divisible e - cash system uses binary tree algorithm or ( n , k ) payment algorithm 现有的可分电子现金系统使用二叉树算法或( n , k )支付问题算法,存在算法复杂,传输数据量大,效率低等问题。
Combining the orientation of searching the route and the decisive position of links and nodes , this paper proposes an orientated tree algorithm of efficient paths by simulating the tree ' s growing 文章将交通路网中节点位置的确定性与交通出行中路径选取的有向性相结合,模拟树的生长,提出了一种有效路径的定向树搜索算法。
At the same time , after successful absorbent of the factor of misclassification cost into splitting principle of decision tree algorithm , the classification model gets a high improvement in accuracy and adaptation 同时,在传统的决策树算法的分裂准则中成功引入了误分代价的因素,从而提高了分类模型的准确性和适用性。
In this dissertation , the decision tree algorithm is improved to adapt to the emergence of new classes . it can better make use of the old tree to build the new decision tree . therefore , 文章改进了决策树算法,提出了一种基于增类的决策树生成算法,它可以很好的利用原始的决策树模型生成新的决策树,大大地提高了系统在有新的攻击出现时的更新效率。
The reduction request knowledge of background and meet with standard of data mining . decisive tree algorithm of id3 is used to prove the validity of feature reduction and to generate intrusion detection rules 粗糙集约简具有扎实数学理论基础,不需要背景知识,符合数据挖掘的要求。用id3决策树算法去印证约简的有效性和检测的时间效率并生成检测规则。
You can use multiple algorithms within one solution to perform separate tasks , for example by using a regression tree algorithm to obtain financial forecasting information , and a rule - based algorithm to perform a market basket analysis 可以在一个解决方案中使用多个算法来执行不同的任务,例如,使用回归树算法来获取财务预测信息,使用基于规则的算法来执行市场篮分析。