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
考研
Chances are your friends are more popular than you are. It is a basic feature of social networks that has been known about for s
Chances are your friends are more popular than you are. It is a basic feature of social networks that has been known about for s
admin
2022-08-04
97
问题
Chances are your friends are more popular than you are. It is a basic feature of social networks that has been known about for some time. Consider both an enthusiastic party hostess with hundreds of acquaintances and an ill-tempered guy, who may have one or two friends. Statistically speaking, the average person is much more likely to know the hostess simply because she has so many more friends. This, in essence, is what is called the "friendship paradox": the friends of any random individual are likely to be more central to the social web than the individual himself.
Now researchers think this seemingly depressing fact can be made to work as an early warning system to detect outbreaks of contagious diseases. By studying the friends of a randomly selected group of individuals, epidemic disease experts can isolate those people who are more connected to one another and are therefore more likely to catch diseases like the flu early. This could allow health authorities to spot outbreaks weeks in advance of current monitoring methods.
In a report, Nicholas Christakis from Harvard University and James Fowler from the University of California, San Diego put the
friendship paradox
to good use. In a trial carried out last autumn, they monitored the spread of flu through students and their friends at Harvard University, and found that their social links were indeed causing them to get infected sooner.
As this result came after the outbreak, the researchers tried to come up with a real-time measure that could potentially provide an early warning sign of an outbreak as it began to spread. Currently, the conventional methods used to assess an infection lag an outbreak by a week or two. Google’s Flu Trends is at best simultaneous with an outbreak. Dr. Christakis and Dr. Fowler suggest that a compound method might be developed in which the search inquiries of a group of highly connected individuals could be scanned for signs of the flu.
Although the technique has so far only been demonstrated for the flu and in the social surroundings of a university, the researchers nevertheless think that it could help predict other infectious diseases and do so on a larger scale. Nor should it be difficult to implement. Public-health officials already conduct random sampling, so getting the participants to name a few friends too should not be troublesome. When it comes to infectious diseases, your friends really do say a lot about you.
By using the "friendship paradox", people may ________.
选项
A、prevent outbreaks of contagious diseases
B、isolate people from each other to avoid flu
C、abandon the current monitoring methods
D、predict outbreaks of flu earlier than present
答案
D
解析
第二段首句中的this seemingly depressing fact指的是上一段的例子,对应题干中的“friendship paradox”。第二段先提出该现象可被利用来检测传染病爆发的早期预警体系,并在段末说“这能够更早地对流行病的爆发作出预警”,故D项“人们可以比现在更早地预测流感的爆发”为答案。本段仅说利用该方法可作为流感早期预警体系,并不是直接防止传染病的爆发。故A项“防止传染性疾病的爆发”和B项“隔离人群以避免流感”都错误。文中仅说该预警系统可能比现行方法快,但它还处于研究阶段,且也未提到要放弃现行方法,C项“放弃现行的监测方式”不对。
转载请注明原文地址:https://kaotiyun.com/show/u3i4777K
0
考研英语二
相关试题推荐
Animportantfactorofleadershipisattraction.Thisdoesnotmeanattractivenessintheordinarysense,forthatisabornqua
Theremarkableprogressofscienceandtechnologyinthe20thcenturyhasbroughtenormousbenefitstohumankind.Longandhealt
Thelongestbullruninacenturyofart-markethistoryendedonadramaticnotewithasaleof56worksbyDamienHirst,Beauti
Nameshavegainedincreasingimportanceinthecompetitiveworldofhighereducation.Ascollegesstriveformarketshare,they
Nameshavegainedincreasingimportanceinthecompetitiveworldofhighereducation.Ascollegesstriveformarketshare,they
Thecellphone,adevicewehavelivedwithformorethanadecade,offersagoodexampleofapopulartechnology’sunforeseensi
Thecellphone,adevicewehavelivedwithformorethanadecade,offersagoodexampleofapopulartechnology’sunforeseensi
Leadingdoctorstodayweighinonthedebateoverthegovernment’sroleinpromotingpublichealthbydemandingthatministersi
[A]Monitoryouralcoholuse[B]Payattentiontotablemanners[C]Don’tbeagossip[D]Networkwithhigher-ups[
随机试题
法国后印象主义代表人物有强调结构美的塞尚,强调线条美的________,强调装饰美的________。[山东2019]
HistorianstendtotellthesamejokewhentheyaredescribinghistoryeducationinAmerica.It’stheone【C1】______theteachers
对于男性假两性的处理,不正确的是
关于速发性哮喘反应,不正确的是
通过控制地下水开采量,可以有效地防治下列哪类地质灾害?()
一般情况下,下列指标中应大于100%的是()。
根据商标法及相关规定,商标在中国政府主办或承认的国际展览会展出的商品上首次使用的,自该商品展出之日起多长时间内,就该商标提出注册申请的,该申请人可以享有优先权?
教师职业道德的核心是()
劳动既是公民的权利,也是公民的义务。()
句子完成测验属于()。
最新回复
(
0
)