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bandits,bandits的意思是

时间:2023-12-01 08:56:05 编辑:连笔君 来源:连笔字网

bandits的意思是

bandits
英 ['bændɪts] 美 ['bændɪts]
n. 盗匪;歹徒;敌机

名词bandit的复数形式.

请问同志们,beltway bandit是啥意思?

beltway bandit是在华盛顿或附近的私人公司,其主要业务是提供咨询服务给美国政府。

这个名称来自The Capital Beltway,是一条环绕华盛顿的环形道路(整条道路被正式称为495号州际公路,虽然东半部与95号州际公路联名,95号州际公路横贯大部分东海岸)。绝大多数的私人承包商的公司,或者至少是总部设在沿着这条道路交叉口的位置,以接近联邦机构和国会议员。

Beltway bandit is a term for private companies located in or near Washington, D.C. whose major business is to provide consulting services to the US government. The phrase was originally a mild insult, implying that the companies preyed like bandits on the largesse of the federal government, but it has lost much of its pejorative nature and is now often used as a neutral, descriptive term.

The name comes from the Capital Beltway, the ring road that surrounds Washington. (The entire road is officially called Interstate 495, although the eastern half is cosigned with Interstate 95, which traverses most of the East Coast.) The majority of private contractors are located, or at least headquartered, at intersections along this road in order to be close to federal agencies and legislators. There is a tendency for contractors for the various civilian departments and agencies to locate along the Maryland portion of the Beltway, while defense contractors locate nearer to the Pentagon, along the Virginia section.

过去分词是什么意思。

一、虽然过去分词与现在分词一般被动式都有被动意义,但是过去分词只强调被动意思,表明动作已经完成,而现在分词一般被动式既有进行又有被动的意味。在下列各种用法中区别非常明显:
(1)过去分词在构成完成时态,不定式完成式以及被动语态时,通常不能用现在分词一般被动式代替。(现在进行时的被动语态除外)
eg:The door was closed an hour ago.
这门在一小时前就关闭了。
They have finished their homework。
他们已经做完了家庭作业
(2)过去分词作前置定语时,不能用现在分词一般被动式代替。
eg: That was an inspired suggestion.
那是一条由某人提出的建议。
同样现在分词一般被动式作为定语表示动作时,也不能用过去分词来代替。
eg:The house being built is a big project.
正在施工的那幢楼是一项大的工程。
(3)过去分词作条件、时间等状语时,不可用现在分词一般被动式代替。
eg:Given more time,I can do it better.(表条件)
多给点时间,我会做得更好些。
Given more attention,the trees could have grown better.(MET 90)(表示条件)
如果多关心一些,这些树会长得更好。
Heated ,the metal expands.(表示时间)
加热后,这种金属会膨胀。
Asked why he did it,he said it was his duty .(表示时间)
问及为何要做此事时,他说这是他的职责。
(4)过去分词作表语时,不能用现在分词一般被动式代替。
eg:The top of the mountain is covered with snow .山顶满是雪。
(5)过去分词在构成have,get,want等动词后的复合宾语时,不能用现在分词一般被动式。
eg:Why don’t you have the radio fixed?
你为什么不把收音机拿去修一修?
尤其是一些感官动词,如:see,hear,find等后构成复合宾语时,过去分词和现在分词一般被动式意思完全不同。
eg:I heard this song being sung by my students in the next room.
我听到隔壁房间的学生正在吟唱这首歌。
(注:现在分词一般被动式表示正在进行的动作)
I have never heard this song sung in English.
我从来没有听到过用英语唱这首歌。
(注:过去分词表示己完成的动作)
(6)在下面一些比较固定的分词独立结构中,通常多用过去分词。
eg: all told总计
all things considered考虑了一切因素之后
this accomplished完成这项工程之后
this explantion given这样解释之后
all said and done毕竟
二.过去分词和现在分词完成被动式的区别:
及物动词的过去分词没有完成式,但它有“完成”的含义,所以它可以代替现在分词完成被动式。
eg:The bridge had been weakened by successive storms and was no longer safe .=
Weakened by successive storms,the bridge was no longer safe.=
Having been weakened by successive storms,the bridge was no longer safe.=
这座桥接二连三地遭到暴风雨的袭击后,己经不安全了。
但若强调分词表示的行为发生在后一个动词表示的行为之前时,可用现在分词完成被动式。
eg:Having been warned about the bandits,he left his valuables at home。
当警告有强盗出没时,他就把贵重物品留在家里。
通常过去分词可作定语使用,而现在分词完成被动式却不能用作定语。
eg:The computer centre,opened last year,is very popular among the students in this school.(MET 93)
去年开办的计算机中心很受学生的欢迎。
(过去分词既能表示被动又有完成的含义)
The first textbooks written for teaching English as a foreign language came out in the 16th century.(NMET 94)
作为外语的英语教科书早在十六世纪就已经出版了。
Most of the artists invited to the party were from south America(MET 90)
应邀参加舞会的大多数艺术家都来自南美。
过去分词可以用“连词+过去分词”的结构作状语,其实质就是状语从句的省略,而现在分词的完成被动式却不能这样用。
eg:Once seen,it can never be forgetten.
目睹一眼,终生难忘。
If bitten by a snake,you should send for help and don't walk
要是你被蛇咬了,你应当向别人求助而不要走。
When shot in the leg,he continued to fire back with his gun.
虽腿部己遭枪击,他人仍然继续开枪还击。
The room,although supposed to be kept locked,was often left open.
通常以为是锁着的那个房间,其实经常敞开着。
综上所述,过去分词与现在分词被动式无论其形式和内涵,都有一定的差异。正确地区别它们的异同,准确地运用它们的表达形式,对英语学习者来说,尤为重要,只要多加比较,反复体会,就能掌握这一知识点。
全文结束为满意回答。

bandit problem 什么意思

bandit problem_翻译
bandit problem
网络意思:吃角子老虎问题;

本人在研究机器学习里reinforcement learning的multi-armed bandit 模型

很简单的问题啊,各种算法epsilon-greedy, soft-max之类的。出论文如果你有老师的话听老师意见,如果没有的话,除非你特别出色,否则真心出不了,因为MAB这个问题简单的部分已经被研究透彻了,难的部分根本没有什么规律可循,除非有个震惊世界的大神再能提出一个和高斯分布还有隐马尔科夫模型一样伟大的数学模型来,也许你行,但是真不是短时间能搞完的事。
MAB这个问题真是太基础了,建议你找本教材多看看关于RL其它方面的论文,例如MDP,POMDP之类的,彻底了解发展水平和该领域的展望与空缺后才能知道自己要搞什么样的研究,搞出研究成功才能出论文,没有老师带真不容易。

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