mobile data show friend networks 手机数据显示社交网络-凯发k8官网

mobile data show friend networks 手机数据显示社交网络
文章来源:未知 文章作者:meng 发布时间:2009-08-18 03:02 字体: [ ] 
(单词翻译:双击或拖选)

friendships can be inferred with 95% accuracy from call records and the 1 of users, says a new report.

一项新报到称,从通话记录和用户亲近度可以推测出95%的友谊结果。

movement and call data showed a different picture of connectivity than surveys
movement and call data showed a different picture of connectivity than surveys

researchers fitted 94 mobiles in the us with logging software to gather data.

the results also showed that those with friends near work were happier, while those who called friends while at work were less satisfied.

the data, published in 2 of the national academy of sciences, showed a marked contrast with answers reported by the users themselves.

"we gave out a set of phones that were installed with a piece of 'uber-spyware'," said the study's lead author nathan eagle, now at the santa fe institute.

"it's invisible to the user but logs everything: communication, users' locations, people's proximity by doing continuous bluetooth scans."

the researchers then compared the data with results from standard surveys given to the mobile users - and found, as the social sciences have found time and again, that people reported different behaviour than the mobile data revealed.

"what we found was that people's responses were wildly inaccurate," dr eagle told bbc news.

"for people who said that a given individual was a friend, they dramatically 3 the amount of time they spent. but for people who were not friends, they dramatically underestimated that amount of time."

the researchers were able to guess from the mobile data alone, with 95% accuracy, if any given pair of users were friends.

an analysis of the overall proximity of a given user to his or her friends - maximised if they worked together - was correlated(有相互关系的) to people who reported a high level of satisfaction at work.

conversely, those who made calls to their friends while working were found to report lower levels of satisfaction at work.

wide application

one principal question of such a small sample size, made up exclusively of students from the massachusetts institute of technology, is how much the results really mean in a sociology context.

however, the group has gone on to carry out a larger study that just finished, comprising 1,000 people in helsinki, finland.

there is also an 4 trial of the approach in kenya, which dr eagle said includes participants ranging from computer science students to people who had never used a phone before.

dr eagle sees the approach not as a means to 5 but rather to supplement traditional measures.

"mobile phone data are fantastic 6 to the existing, very deep survey literature that the social sciences already have," he said.

moreover, he sees it not just as a means to map out the networks of friends that mobile users might have, but to carry on this "reality mining" in contexts ranging from the modelling of the spread of disease to the design of urban spaces.

"we were capturing data when the red sox won the [baseball championship] world series for the first time," dr eagle recounted.

"suddenly all our subjects became unpredictable; they all flooded into downtown boston to a rally in the centre of the city.

"city planners approached us because they wanted to know how people were using urban 7(城市基础设施), to know when the people left the rally, how many walked across the bridge and how many took the subway, how many biked or took the bus.

"we can give them some real insight with the idea of 8 them build a better city that reflects people's actual behaviour."



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1 5rsxm     
n.接近,邻近
参考例句:
  • marriages in proximity of blood are forbidden by the law.法律规定禁止近亲结婚。
  • their house is in close proximity to ours.他们的房子很接近我们的。
2 wk2zvx     
n.进程,过程,议程;诉讼(程序);公报
参考例句:
  • he was released on bail pending committal proceedings. 他交保获释正在候审。
  • to initiate legal proceedings against sb 对某人提起诉讼
3 3ea9652f4f5fa3d13a818524edff9444     
对(数量)估计过高,对…作过高的评价( overestimate的过去式和过去分词 )
参考例句:
  • they overestimated his ability when they promoted him. 他们提拔他的时候高估了他的能力。
  • the ministry of finance consistently overestimated its budget deficits. 财政部一贯高估预算赤字。
4 6rvzt     
adj.进行中的,前进的
参考例句:
  • the problem is ongoing.这个问题尚未解决。
  • the issues raised in the report relate directly to age concern's ongoing work in this area.报告中提出的问题与“关心老人”组织在这方面正在做的工作有直接的关系。
5 rflyn     
vt.排挤;取代
参考例句:
  • electric cars may one day supplant petrol-driven ones.也许有一天电动车会取代汽油驱动的车。
  • the law of momentum conservation could supplant newton's third law.动量守恒定律可以取代牛顿第三定律。
6 5a1152804ff4d812e4b400d5b206fc89     
补充( complement的名词复数 ); 补足语; 补充物; 补集(数)
参考例句:
  • his business skill complements her flair for design. 他的经营技巧和她的设计才能相辅相成。
  • the isoseismal maps are valuable complements to the instrumental records. 等震线图是仪器记录有价值的补充资料。
7 ubbz5     
n.下部构造,下部组织,基础结构,基础设施
参考例句:
  • we should step up the development of infrastructure for research.加强科学基础设施建设。
  • we should strengthen cultural infrastructure and boost various types of popular culture.加强文化基础设施建设,发展各类群众文化。
8 2rgzdc     
n.食物的一份&adj.帮助人的,辅助的
参考例句:
  • the poor children regularly pony up for a second helping of my hamburger. 那些可怜的孩子们总是要求我把我的汉堡包再给他们一份。
  • by doing this, they may at times be helping to restore competition. 这样一来, 他在某些时候,有助于竞争的加强。
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