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)。
well n. 1.井。 2.泉水;源头,来源。 3.坑,穴,凹处;【矿物】矿井,竖坑;【军事】(地雷的)井坑;【建筑】井孔;通风竖井;楼梯井,升降机井道。 4.【机械工程】(插仪表的)插孔,(油轴承中的)室。 5.(渔船的)养鱼舱;(书桌上的)墨水池。 6.(阶梯形教室的)讲坛;(法庭的)律师席。 an artesian well 自流井,喷水井。 an oil well 油井。 a landing gear well 【航空】起落架舱。 vi. 涌出,喷出 (up out forth)。 vt. 使涌出,使喷出,使流出。 eyes welling tears of joy 涌出欢乐泪水的眼睛。 a fountain welling pure waters 喷射清水的喷泉。 well over 溢满。 adv. ( better best ) 1.好。 2.适当,恰当,合适,正好。 3.足够;完全;充分。 4.很,相当。 5.大概;很可能。 6.有理。 7.关心地,优待;赞扬。 That is well said. 说得好。 W- done! 好!做得好! It was well done of you to come. 你来得正好。 live well 生活得优越。 It may well be true. 这大概是真的。 You may well say that. 你那么说也有理。 be treated well 受优待,得到照顾。 as well 又,也;同样 ( He is a scientist, but he is a poet as well. 他是科学家又是诗人)。 as well as (除…之外)又…,既…又…,和…一样;…不用说 ( He gave me clothes as well as food. 他给我食物又给我衣服。 As well be hung for a sheep as a lamb. 一不做二不休,要干索性大干)。 be well on in life 年纪很大。 be well past (forty) 远远超过(四十岁)。 be well up in the list 列在最前面几个当中。 do oneself well 日子过得很好[富裕]。 may as well 还是…的好 ( You may as well go at once. 你还是马上去的好)。 may (as) well 也不坏,也有好处 ( We might well make the experiment. 我们做做实验也不坏)。 might as well 等于,不如 ( You might as well throw your money into the sea as lend it to him. 你借钱给他等于丢在海里)。 stand well with ...中…的意,受…欢迎。 W- met! 幸会,幸会! well off = well to do 经济宽裕,富裕。 well over (a hundred) 远远超过(一百)。 adj. (better best) 1.健康(的),痊愈(的),健全(的)。 2.适当(的),得当(的)。 3.正好(的),好;满意(的)。 a well man 〔美国〕健康的人。 Quite well, thank you. 我很好,谢谢你。 It is well you came along. 你来得正好。 be as well …也好 ( It may be as well to explain. 说明说明也好)。 It is all very well, but ...这好倒是很好,可是…。 very well 非常好;非常健康;好。 Well and good. (既然…,那就)好吧,没法了;那也好。 well enough 相当好。 n. 好,满意。 I wish him well. 我希望他幸福。 Let well alone. 那样很好,别去管它;不要画蛇添足;不要多事。 int. 〔表示吃惊、安心、让步、谈话的重新开始、期待、断念等的意思〕 1.哎呀,唷;怎么! 2.好啦。 3.好,那么,那么说的时候。 4.喔,这个;可是,且说,至于。 5.后来。 6.算啦。 W-, to be sure! = W-, I never! = W- now! 唷,这倒奇怪! W-, here we are at last. 好啦,好容易到了。 W-, do as you please. 那么[好吧],随你的便罢。 W- then, say no more about it. 那么这事情就这样算啦。 W-, who was it 可是,那是谁呢? W- then 后来怎样啦? W-, it cannot be helped. 算了,没办法。 n. -ness 〔美口〕身心健康(a wellness center [program]身心健康中心[计划])。
There was no undergrowth, only the smooth grass, very green and fresh, and the big gray trees well spaced as though it were a park . 没有灌木,只有青翠欲滴的、平坦的草地、灰色的参天大树之间的间距井井有条,宛如一座公园。
By analyzing expression between a and fuzzy entropy from the view of analytics , this paper analyses the relationship of between a and fuzzy entropy and the changing trend of fuzzy entropy function with the increase of a , then discusses the sensitivity of the parameter a to classification result such as total nodes , rule number , classification accuracy of fuzzy decision tree , proposes an experimental method of obtaining optimal a , it is proved by experiment that the optimal value a obtained by this method can make the classification result of fuzzy decision tree best , and therefore provides the academic evidence of selecting parameter a in order to gain the best classification result 本文在visualc + +软件开发平台及模糊id3算法的基础上,从解析的角度出发,通过分析参数与模糊熵之间的函数关系式,讨论了随着的增加,模糊熵函数的变化趋势,进一步分析了参数对模糊决策树的分类结果在训练准确率、测试准确率、规则数等方面所表现出的敏感性,探讨了得到最优参数的实验方法。实验证明,利用这一方法得到的最优参数的值,可以使模糊决策树的分类结果达到最好的效果,从而为人们用模糊决策树进行分类时选取参数以获得最优的分类结果,提供了良好的理论依据。
A new heuristic search method is devised for maximum likelihood method , which first constructs a starting tree , and then through branch swapping searches for trees best resembling the present optimal tree and locates a better tree . repeat this process , till no more better trees are generated or the upper iteration limit is arrived and the program ends 对最大似然法,改进了一种新的启发式搜索:随机建立一棵初始树,然后通过查看与当前最优树拓扑最近的树,从中寻找更优树,不断地更新当前最优树,直到无法找到更优树或者达到了搜索次数的上限,算法停止。
百科解释
A tree well is a void or area of loose snow around the trunk of a tree enveloped in deep snow. Also known as "spruce traps", these voids present danger to hikers, snowshoers, skiers, and snowboarders who fall into them.