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Speech Communication
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Software-based on-line energy estimation for sensor nodes
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uWave: Accelerometer-based personalized gesture recognition and its applications
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SurroundSense: mobile phone localization via ambience fingerprinting
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CODES/ISSS '10 Proceedings of the eighth IEEE/ACM/IFIP international conference on Hardware/software codesign and system synthesis
Activity recognition using cell phone accelerometers
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An efficient localization algorithm focusing on stop-and-go behavior of mobile nodes
PERCOM '11 Proceedings of the 2011 IEEE International Conference on Pervasive Computing and Communications
uDirect: A novel approach for pervasive observation of user direction with mobile phones
PERCOM '11 Proceedings of the 2011 IEEE International Conference on Pervasive Computing and Communications
NextPlace: a spatio-temporal prediction framework for pervasive systems
Pervasive'11 Proceedings of the 9th international conference on Pervasive computing
SpeakerSense: energy efficient unobtrusive speaker identification on mobile phones
Pervasive'11 Proceedings of the 9th international conference on Pervasive computing
Accurate and privacy preserving cough sensing using a low-cost microphone
Proceedings of the 13th international conference on Ubiquitous computing
Bathroom activity monitoring based on sound
PERVASIVE'05 Proceedings of the Third international conference on Pervasive Computing
Audio-based context recognition
IEEE Transactions on Audio, Speech, and Language Processing
MusicalHeart: a hearty way of listening to music
Proceedings of the 10th ACM Conference on Embedded Network Sensor Systems
The user side of sustainability: Modeling behavior and energy usage in the home
Pervasive and Mobile Computing
Auditeur: a mobile-cloud service platform for acoustic event detection on smartphones
Proceeding of the 11th annual international conference on Mobile systems, applications, and services
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As a consequence of rising energy prices, manifold solutions to create user awareness for the unnecessary operation of electric appliances have emerged, e.g., real-time consumption displays or timer-based switchable wall outlets. A common attribute of these solutions is the need to buy and install additional hardware, although their acquisition costs often diminish the attainable savings. Furthermore these solutions only permit to retrieve accumulated figures of the energy consumption. Especially in households or office spaces with multiple persons, however, attributing electricity consumption to individuals provides enormous potential to determine possible savings. We therefore propose a system that allows to identify the energy demand incurred by a user's action based on audio recordings using smartphones. More precisely, we capture the user's ambient sounds and applying suitable filtering steps in order to determine the user's current activity. Our results indicate that our system is capable of detecting 16 typical household activities at an accuracy of 92%. By annotating the detectable household activities with information about typical energy consumptions, extracted from 950 real-world power consumption traces, a good estimate of the energy intensity of the users' lifestyles can be made. Our novel personalized energy monitoring system shows people their personal energy consumption, while maintaining their user comfort and relinquishing the need for additional hardware.