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
52
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 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
第二段说,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/Fu1O777K
0
考博英语
相关试题推荐
Manypeopleseemtothinkthatsciencefictionistypifiedbythecoversofsomeoftheoldpulpmagazines:theBug-EyedMonster
Manypeopleseemtothinkthatsciencefictionistypifiedbythecoversofsomeoftheoldpulpmagazines:theBug-EyedMonster
"Popularan"hasanumberofmeanings,impossibletodefinewithanyprecision,whichrangefromfolkloretojunk.Thepolesare
Notable’asimportantnineteenth-centurynovelsbywomen,MaryShelley’sFrankensteinandEmilyBronte’sWutheringHeightstreat
RiteofPassageisagoodnovelbyanystandards;______,itshouldrankhighonanylistofsciencefiction.
In1993,amallsecuritycameracapturedashakyimageoftwo10-year-oldboysleadingmuchsmallerboyoutofaLiverpool,Engl
What,then,doesDruckersuggestarethenewknowledge-basedindustriesonwhicheconomicgrowthwilldepend?Hediscussesthree
Inmostpeople’smind,growthisassociatedwithprosperity.WejudgehowwelltheeconomyisdoingbythesizeoftheGrossNat
Amidremarkableprogressoninflationandfiscalreform,Italyheadsinto1998withbrightprospectsforeconomicgrowthandits
Amidremarkableprogressoninflationandfiscalreform,Italyheadsinto1998withbrightprospectsforeconomicgrowthandits
随机试题
自耻骨联合下缘到骶岬上缘中点的距离是
可用拇指、示指取物的年龄为
对于安全文明施工费的预付,发包人应在工程开工后28天内预付不低于当年施工进度计划的安全文明施工费总额的()。
事故调查处理应当按照( )的原则,及时、准确地查清事故原因、查明事故性质和责任,总结事故教训,提出整改措施,并对事故责任者提出处理意见。
下述有关人民检察院的拘留权的说法,正确的是()。
创造财富固然是人的价值体现,而节约自律又何尝不是人性光辉的显现。对于每个人来说,反对铺张浪费人人都能做到,贵在自觉坚持。就拿“光盘行动”来说,点菜时手稍微紧一点,吃自助的时候多次少取,都能避免浪费。倘若人人都能强化这个意识,就能互相提醒,形成勤俭节约的共识
1,,,,()。
甲、乙、丙共同投资成立一企业,甲、乙对该企业债务承担无限连带责任,丙以其认缴的出资额为限对该企业债务承担责任。该企业属于()。
软件维护是软件生命周期的重要组成,而影响维护的因素较多,除了人员因素、技术因素和管理因素外,还有程序自身的因素,具体影响因素可归纳为:1)软件系统的规模;2)软件系统的年龄;3)软件系统的结构。试回答以下问题:1.给出上述三项因素的解释,阐述“规
Software(ofcomputers),isalsocalledcomputerprograms,whichreferstoinstructionsthatcausethehardware—themachines—to
最新回复
(
0
)