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Accurate, Low-Energy Trajectory Mapping for Mobile Devices Arvind Thiagarajan, Lenin Ravindranath, Hari Balakrishnan, Samuel Madden, Lewis Girod MIT Computer Science and Artificial Intelligence Laboratory {arvindt, lenin
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Document Date: 2011-03-03 17:50:55

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File Size: 4,41 MB

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City

Boston / Cambridge / /

Company

Nokia / Qualcomm / /

Country

United States / /

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Event

Product Issues / Product Recall / /

Facility

Phone Library / GSM towers / CTrack Phone Library / /

IndustryTerm

low-energy sensors / energy-equivalent strategy / personalized trip management / web applications / location-based applications / background applications / cellular systems / fleet management applications / map-matching algorithm / movement hint extraction algorithm / anti-theft systems / 2.5× less energy / wireless network / search states / telephony / marginal energy / important by-product / low-power tagging applications / location-based mobile services / software components / marginal energy cost / transmission energy / low-energy phone sensors / Web Service / wireless propagation model / mobile sensing applications / energy-accuracy trade-off / seen satellite information / energy / metal / on-phone processing / typical cellular systems / trip management applications / energy-efficient system / trajectory mapping algorithm / energy consumption / navigation applications / energy cost / 3G networks / commodity mobile devices / less energy / interest using software / Web Service Central Server Trajectory Mapping Algorithm Server Database Queries On Server Batch Transmission On Phone Over Network / search space / /

OperatingSystem

Android / /

Organization

MIT / US Federal Reserve / /

Person

Hari Balakrishnan / Lenin Ravindranath / Arvind Thiagarajan / Samuel Madden / Lewis Girod / /

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Product

VTrack / HTC Tilt Smartphone / Nokia N95 Smartphone / Apple iPhone 4 Smartphone / minutes / segments / Apple iPhone 3G Smartphone / metrics / Wscan / CTrack / accuracy / /

Technology

RAM / VTrack algorithm / 3 CTrack Web Service Central Server Trajectory Mapping Algorithm / API / smartphone / GPS / mobile phones / Android / mobile device / map-matching algorithm / 4.1 Algorithm / two-pass algorithm / Mobile Devices / Placelab fingerprinting algorithm / Java / trajectory mapping algorithm / same technology / ASCII / smartphones / Snapdragon processor / movement hint extraction algorithm / GSM / GSM protocol / 3G / /

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