Surrogate mobile sensing
Surrogate mobile sensing
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DOI：
10.1109/mcom.2014.6871667
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发表时间：
2014-08
影响因子：
11.2
通讯作者：
Dong Wang;T. Abdelzaher;Lance M. Kaplan
中科院分区：
文献类型：
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作者：
Dong Wang;T. Abdelzaher;Lance M. Kaplan
具有感测能力的智能电话的激增促使探索（基于电话的）移动的感测的适用性限制。虽然手机可以直接测量位置、加速度和方向等变量，但人们可能想要测量的其他有趣的量具有手机无法直接识别的更高级别的语义。例如，人们可能想要映射下班后免费的停车场，或者午夜后受欢迎的餐馆。我们如何使用手机上的传感器来测量这些更高层次的逻辑量？解决这个问题的技术属于代理感测的广泛领域，定义为通过测量较弱的代理来推断高级逻辑量。这里所说的替代变量是可以用手机感知到的变量，但与人们真正追求的原始高级逻辑量只有微弱的关联。关键的挑战是利用适当的聚合技术，利用大量电话的可用性，以克服个别代理人的质量差。最近，在理解替代感知的质量限制方面取得了重大进展。本文概述了这些进展背后的主要思想和见解。
The proliferation of smart phones with sensing capabilities motivates exploring the applicability limits of (phone-based) mobile sensing. While a phone can directly measure variables such as location, acceleration, and orientation, other interesting quantities one may want to measure have higher-level semantics that a phone does not directly recognize. For example, one might want to map parking lots that are free after hours, or restaurants that are popular after midnight. How can we measure such higher-level logical quantities using sensors on phones? Techniques that address this question fall in the broad area of surrogate sensing, defined as inferring high-level logical quantities by measuring weaker surrogates. The surrogates in question are variables that can be sensed using a phone, but are only weakly related to the original high-level logical quantities one is really after. The key challenge is to exploit appropriate aggregation techniques that leverage the availability of large numbers of phones to overcome the poor quality of individual surrogates. Recently, significant advances have been made in understanding the quality limits of surrogate sensing. This article overviews the main ideas and insights underlying these advances.