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
2013-01-28
35
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 it ain’t.
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 per cent 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 mug-shots (通缉犯), 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 first paragraph tells us that ______.
选项
A、Visionics produced the best face-recognition software enhancing airport security
B、Visionics’s stocks rose in price
C、the airports were satisfied with the software
D、Visionics’s software was a great success
答案
B
解析
第一段说“9·11”以后,公司纷纷推出面容识别软件,据说它可以加强机场安全。各机场纷纷选购,这些公司的股票随之上涨。选项中只有股票上涨是事实。
转载请注明原文地址:https://kaotiyun.com/show/Uu1O777K
0
考博英语
相关试题推荐
Theyarebothverydeterminedpeople,sothere’srather______bypersonalities.
Fastfood,amainstayofAmericaneatingfordecades,mayhavereachedaplateauintheUnitedStatesasthematuringbaby-boom
OnesillyquestionIsimplycannottolerateis"Howdoyoufeel?"Usuallythequestionisaskedofamaninaction-amanwalki
OnesillyquestionIsimplycannottolerateis"Howdoyoufeel?"Usuallythequestionisaskedofamaninaction-amanwalki
AdversereviewsintheNewYorkpressmaygreatlychangetheprospectsofanewBroadwayproduction.
Eighttimeswithinthepastmillionyears,somethingintheEarth’sclimaticequationhaschanged,allowingsnowinthemountain
Ishouldbeabletofinishthetaskontime,______youprovidemewiththenecessaryguidance.
"Popularan"hasanumberofmeanings,impossibletodefinewithanyprecision,whichrangefromfolkloretojunk.Thepolesare
Inmostpeople’smind,growthisassociatedwithprosperity.WejudgehowwelltheeconomyisdoingbythesizeoftheGrossNat
GeneralGeorgeWashingtonandhishungry,raggedtroopscrossedtheDelawareRiverfromPennsylvania,surprisedthegarrisonof
随机试题
纵向弛豫时间是指90°脉冲后,纵向磁化矢量恢复到原来的多少所经历的时间
代谢性酸中毒最突出的表现是
会计职业道德教育不包括对潜在会计人员进行的有目的、有计划、有组织的道德教育活动。()
垄断企业是价格制定者,是因为()。
对语词概括的各种有组织的知识的记忆叫()。
在行政诉讼中。人民法院实施下列哪一行为须征得原告同意?()
根据我国宪法,乡、民族乡、镇的人民代表大会每届任期几年?()
某国家领导人要在连续6天(分别编号为第一天,第二天,……,第六天)内视察6座工厂F、G、H、J、Q和R,每天只视察一座工厂,每座工厂只被视察一次。视察时间的安排必须符合下列条件:(1)视察F在第一天或第六天。(2)视察J的日子比视察Q的日子早。(3)
局域网指较小地域范围内的计算机网络,一般是一幢建筑物内的计算机互联成网。下面关于以太局域网的叙述中,错误的是()。
Readthistextaboutthegrowingdemandforconsultants,takenfromabusinessmagazine.Choosethebestsentencefromtheop
最新回复
(
0
)