首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
In the wake of 11 September, Visionics, a leading manufacturer, issued a fact sheet explaining how its technology could enhance
In the wake of 11 September, Visionics, a leading manufacturer, issued a fact sheet explaining how its technology could enhance
admin
2013-01-25
26
问题
In the wake of 11 September, Visionics, a leading manufacturer, issued a fact sheet explaining how its technology could enhance airport security. They called it " protecting civilization from the faces of terror". The company’s share price skyrocketed, as"did the stocks of other face-recognition companies, and airports across the globe began installing the software and running trials.
As the results start to come in, however, the gloss (光滑表面) is wearing off. No matter what you might have heard about face-recognition software, Big Brother is not so good as expected.
The concern was based largely on an independent assessment of face-recognition systems carried out in 2000 in the U. S. by the Department of Defense. These tests found that to catch 90 percent of suspects at an airport, face-recognition software would have to raise a huge number of false alarms. One in three people would end up being dragged out of the line and that’s assuming everyone looks straight at the camera and makes no effort to disguise himself. Results from the recent airport trials would seem to justify that concern.
Most face-recognition systems use some kind of geometric technique to translate a picture of a face into a set of numbers that capture its characteristics. Once it has identified these boundaries, the software calculates their relative sizes and positions and converts this geometry into what Visionics calls a "faceprint". Feed the software a series of mugshots, and it’ll calculate their faceprints. Then it can monitor live CCTV images for the faces of known suspects. When it finds a match, it raises an alarm.
Even if the system does manage to capture a face, the problems aren’t over. The trouble is that a suspect’s faceprint taken from live CCTV is unlikely to match the one in the database in every detail. To give themselves the best chance of picking up suspects, operators can set the software so that it doesn’t have to make an exact match before it raises the alarm. But there’s a price to pay; the more potential suspects you pick up, the more false alarms you get You have to get the balance just right
Despite the disappointing tests, some people insist that face-recognition technology is good enough to put terrorists off. After all the claims and counter-claims, with no one able to discern(洞察)the truth, the industry may soon have to face up to reality.
The second paragraph implies that_______.
选项
A、the surface of the software is not smooth
B、there is a series of face-recognition software products
C、the software turns out to be inefficient
D、the software is not durable
答案
C
解析
第2段说,软件试用结果一出来,其光滑的表面就磨损了。这个比喻的意思是说,其结果远没有原来鼓吹的那样好。
转载请注明原文地址:https://kaotiyun.com/show/EX1O777K
0
考博英语
相关试题推荐
Thecompany,EDS,issmartenoughto____90,000-personworkforceintoindependentmicroteamsthatworkdirectlywithindividualcli
OnesillyquestionIsimplycannottolerateis"Howdoyoufeel?"Usuallythequestionisaskedofamaninaction-amanwalkin
TheParthenonTheParthenon,abuildinginAthens,Greece,isperhapsoneofthemostmemorablestructuresonEarth.Built25c
ViruseshavebeenaroundlongerthanPCs,andarenotwithoutacertainmathematicalandscientificinterest.Indeed,notallvi
Whenaninventionismade,theinventorhasthreepossible【C1】______ofactionopentohim:hecangivetheinventiontotheworl
Aristotlewasoneofthosewhocouldfoundacivilization,andwhilehethoughtofeducationasbothasocialvalueandanendi
Forseveralyears,scientistshavebeentestingasubstancecalledinterferon(干扰素),apotentialwonderdrugthatisprovingto
Opponentsofaffirmativeactionsaythebattleovertheuseofraceincollegeadmissionsishardlyover,despitetheSupremeCo
Everyonewhoheardthestoryfounditincredible.
ThepsychologistEdwinG.Boringpreferred"currentofbelief"astheEnglishexpressionfortheGermanwordZeitgeist,usedby
随机试题
“天下为公”的基本含义是,天下是天下人所共有的,不是一个集团、一个群体的,在“天下为公”观念背后,我们看到的是中国人最基本的政治观念,也是过去四千年来中国政治运作的基本原则,那就是政治平等,人人都有参与天下之治理的机会。当然,参与方式非常多样,一个普普通通
添加_______按钮和创建超链接都可以控制幻灯片的播放顺序。
下列哪项是封闭式问题的缺点
证券公司从事介绍业务,与期货公司签订的书面委托协议应载明的事项不包括()。
2×16年12月30日,甲公司以发行新股作为对价,购买乙公司所持丙公司60%股份。乙公司在股权转让协议中承诺,在本次交易完成后的3年内(2×17年至2×19年)丙公司每年净利润不低于5000万元,若丙公司实际利润低于承诺利润,乙公司将按照两者之间的差额及
5,6,16,28,60,()
()对于奋不顾身相当于见利忘义对于()
从1951年开始,以毛泽东为主要代表的中国共产党人开始了对中国农村社会主义改造道路的探索。1952年11月12日,中共中央决定在省委以上领导机关建立农村工作部,规定农村工作部的“中心任务是组织与领导广大农民的互助合作运动,以便配合国家工业化的发展。逐步引导
记者在采访2015年诺贝尔生理学或医学奖得主的中国女药学家屠呦呦时问她:“你在小鼠和猴子身上测试了青蒿素,证明它是有效的之后,你自己也服了药。你害怕吗?”屠呦呦答:“我们担心药物是否安全。我和两位同事服了药,表明药不会死人。我认为这是我作为药物化学家的责任
WhatdoesCheryldoathersupermarketjob?
最新回复
(
0
)