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
We may all like to consider ourselves free spirits. But a study of the traces left by 50,000 cellphone users over three months h
We may all like to consider ourselves free spirits. But a study of the traces left by 50,000 cellphone users over three months h
admin
2018-04-07
49
问题
We may all like to consider ourselves free spirits. But a study of the traces left by 50,000 cellphone users over three months has conclusively proved that the truth is otherwise.
"We are all in one way or another boring," says Albert-Laszlo Barabasi at the Center for Complex Network Research at Northeastern University in Boston, who co-wrote the study. "Spontaneous individuals are largely absent from the population."
Barabasi and colleagues used three months’ worth of data from a cellphone network to track the cellphone towers each person’s phone connected to each hour of the day, revealing their approximate location. They conclude that regardless of whether a person typically remains close to home or roams far and wide, their movements are theoretically predictable as much as 93 per cent of the time.
Surprisingly, the cellphone data showed that individuals’ movements were more or less as predictable at weekends as on weekdays, suggesting that routine is rooted in human nature rather than being an effect of work patterns.
The cellphone records were processed to identify the most visited locations for each user. Then the probability of finding a given user at his or her most visited locations at each hour through the day was calculated.
People were to be found in their most visited location for any given hour 70 per cent of the time. Not surprisingly, the figure increased at night, and decreased at lunchtime and in the early evening, when most people were returning home from work.
The team analysed the randomness(随意性)of people’s traces to show it was theoretically possible to predict the average person’s whereabouts as much as 93 per cent of the time.
"Say your routine movement is from home to the coffee shop to work: if you are at home and then go to the coffee shop it’s easy for me to predict that you are going to work," says co-author Nicholas Blumm.
This predictability was not much affected by differences in age, gender, language spoken or whether a person lived in a rural or urban setting.
A phone user’s location is shown by ______.
选项
A、which cellphone tower he is connected to
B、which cellphone network he is connected to
C、how often he uses the phone every day
D、the content of his every phone call
答案
A
解析
原文该句中,cellphone towers是关键词,句中的to track…及其后的内容表明Barabasi是通过记录手机信号在各个时段连接到哪个信号塔,从而推测手机用户的大概位置,本题应选A。
转载请注明原文地址:https://jikaoti.com/ti/FTRFFFFM
0
大学英语四级
相关试题推荐
Nearly5,000peoplebelowtheageof21diebecauseofexcessivealcoholconsumptioneachyear.Oddly,thishastriggeredanew
Peoplebecomequiteillogicalwhentheytrytodecidewhatcanbeeatenandwhatcannot.IfyoulivedintheMediterranean,for
Mostpeopleoftendreamatnight.Whentheywakeinthemorningtheysaytothemselves,"WhatastrangedreamIhad!Iwonderwh
Mostpeopleoftendreamatnight.Whentheywakeinthemorningtheysaytothemselves,"WhatastrangedreamIhad!Iwonderwh
SomeAmericansarealittlenervousaboutthenation’sfuture,butothersfeelsecure,knowingthatthemantheyconsiderthemo
SomeyearsagoIwasofferedawritingassignmentthatwouldrequirethreemonthsoftravelthroughEurope.Ihadbeenabroada
IthasbeenmonthssinceTinaMoorelastbitintoabagelorasliceoftoast."Proteinisgood.Carbs(碳水化合物)arebad,"says41
IthasbeenmonthssinceTinaMoorelastbitintoabagelorasliceoftoast."Proteinisgood.Carbs(碳水化合物)arebad,"says41
随机试题
政治
下列哪一项不符合缺铁性贫血
下列哪个行为不构成信用卡诈骗罪:
【2006年第114题】抗震设计时,全部消除地基液化的措施中,下面哪一项是不正确的?
连续速度调节系统按控制原则分为()。
关于Word2003的功能,下面说法中正确的是()。
()主要留给因特网体系结构研究委员会lAB使用。
康有为在奏章中往往采取在“中体”中借用西学“移花接木”法,给皇帝讲“心当变法”的道理。顽固派指责他“其貌则孔也,其心则夷也”。他这样做的目的是()。
(2012年广东.50)水至清则无鱼
Humorcanreducedistressandunhappiness_______________________________(通过营造欢快友好的气氛).
最新回复
(
0
)