arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1111.4645cs.SI
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基于增量学习的手机数据社会和个人属性精确预测

Incremental Learning with Accuracy Prediction of Social and Individual Properties from Mobile-Phone Data

Yaniv Altshuler, Nadav Aharony, Michael Fire, Yuval Elovici, Alex Pentland

摘要:

移动电话正迅速成为社会、行为和环境感知以及数据汇集的主要来源。今天的智能手机配备了越来越多的传感器和可访问的数据类型,这些数据类型可以收集与手机、其用户及其环境相关的数十种信号。大量的研究工作在学术界和工业界投入到挖掘这些原始数据的更高层次的意义,如理解用户上下文,推断社交网络,学习个人特征,预测outcome.In这项工作中,我们调查的学习和推理的真实世界的数据通过移动电话随着时间的推移收集的属性。特别是,我们将研究随着时间的推移动态学习过程,以及预测个人参数和社会联系的能力如何随着额外数据的积累而逐步增强。为了做到这一点,我们使用了朋友和家人数据集,它包含了一年多来从一个家庭住宅社区的140名成年成员的智能手机中收集的丰富数据信号,是迄今为止学术界收集的最全面的手机数据集之一。我们开发了几个模型,预测社会和个人属性从感知的手机数据,包括检测生活伴侣,种族,以及一个人是否是学生。然后,对于这组不同的学习任务,我们研究了随着新数据的收集,预测精度如何随时间推移而变化。最后,基于所获得的见解,我们提出了一种方法,根据一组初始测量值,提前预测手头学习任务的最大学习精度。这具有实际意义,例如为移动数据汇集活动的设计提供信息,或评估分析策略。

英文摘要:

Mobile phones are quickly becoming the primary source for social, behavioral, and environmental sensing and data collection. Today's smartphones are equipped with increasingly more sensors and accessible data types that enable the collection of literally dozens of signals related to the phone, its user, and its environment. A great deal of research effort in academia and industry is put into mining this raw data for higher level sense-making, such as understanding user context, inferring social networks, learning individual features, predicting outcomes, and so on. In this work we investigate the properties of learning and inference of real world data collected via mobile phones over time. In particular, we look at the dynamic learning process over time, and how the ability to predict individual parameters and social links is incrementally enhanced with the accumulation of additional data. To do this, we use the Friends and Family dataset, which contains rich data signals gathered from the smartphones of 140 adult members of a young-family residential community for over a year, and is one of the most comprehensive mobile phone datasets gathered in academia to date. We develop several models that predict social and individual properties from sensed mobile phone data, including detection of life-partners, ethnicity, and whether a person is a student or not. Then, for this set of diverse learning tasks, we investigate how the prediction accuracy evolves over time, as new data is collected. Finally, based on gained insights, we propose a method for advance prediction of the maximal learning accuracy possible for the learning task at hand, based on an initial set of measurements. This has practical implications, like informing the design of mobile data collection campaigns, or evaluating analysis strategies.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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