The visual analysis of human movement: a survey
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Exploiting generative models in discriminative classifiers
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A Brief Introduction to Boosting
IJCAI '99 Proceedings of the Sixteenth International Joint Conference on Artificial Intelligence
WearNET: A Distributed Multi-sensor System for Context Aware Wearables
UbiComp '02 Proceedings of the 4th international conference on Ubiquitous Computing
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ICMI '02 Proceedings of the 4th IEEE International Conference on Multimodal Interfaces
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Asymmetrically boosted HMM for speech reading
CVPR'04 Proceedings of the 2004 IEEE computer society conference on Computer vision and pattern recognition
Analyzing features for activity recognition
Proceedings of the 2005 joint conference on Smart objects and ambient intelligence: innovative context-aware services: usages and technologies
Extracting Places and Activities from GPS Traces Using Hierarchical Conditional Random Fields
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Proceedings of the 1st ACM SIGMOBILE international workshop on Systems and networking support for healthcare and assisted living environments
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Detection of early morning daily activities with static home and wearable wireless sensors
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Accurate activity recognition in a home setting
UbiComp '08 Proceedings of the 10th international conference on Ubiquitous computing
On using existing time-use study data for ubiquitous computing applications
UbiComp '08 Proceedings of the 10th international conference on Ubiquitous computing
HealthSense: classification of health-related sensor data through user-assisted machine learning
Proceedings of the 9th workshop on Mobile computing systems and applications
APCHI '08 Proceedings of the 8th Asia-Pacific conference on Computer-Human Interaction
VoiceLabel: using speech to label mobile sensor data
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Office activity recognition using hand posture cues
BCS-HCI '08 Proceedings of the 22nd British HCI Group Annual Conference on People and Computers: Culture, Creativity, Interaction - Volume 2
Detecting Abnormal Events via Hierarchical Dirichlet Processes
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KidCam: Toward an Effective Technology for the Capture of Children's Moments of Interest
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Multi Activity Recognition Based on Bodymodel-Derived Primitives
LoCA '09 Proceedings of the 4th International Symposium on Location and Context Awareness
Daily Routine Recognition through Activity Spotting
LoCA '09 Proceedings of the 4th International Symposium on Location and Context Awareness
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Structure learning on large scale common sense statistical models of human state
AAAI'08 Proceedings of the 23rd national conference on Artificial intelligence - Volume 3
Proceedings of the 11th international conference on Ubiquitous computing
HydroSense: infrastructure-mediated single-point sensing of whole-home water activity
Proceedings of the 11th international conference on Ubiquitous computing
Inferring long-term user properties based on users' location history
IJCAI'07 Proceedings of the 20th international joint conference on Artifical intelligence
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Review: The use of pervasive sensing for behaviour profiling - a survey
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IMCE '09 Proceedings of the 1st international workshop on Interactive multimedia for consumer electronics
Abnormal activity recognition based on HDP-HMM models
IJCAI'09 Proceedings of the 21st international jont conference on Artifical intelligence
Using mobile phones to determine transportation modes
ACM Transactions on Sensor Networks (TOSN)
Human daily activity recognition in robot-assisted living using multi-sensor fusion
ICRA'09 Proceedings of the 2009 IEEE international conference on Robotics and Automation
Recognition of hand movements using wearable accelerometers
Journal of Ambient Intelligence and Smart Environments
Lowering the barrier to applying machine learning
CHI '10 Extended Abstracts on Human Factors in Computing Systems
Automatic feature selection for context recognition in mobile devices
Pervasive and Mobile Computing
A statistical reasoning system for medication prompting
UbiComp '07 Proceedings of the 9th international conference on Ubiquitous computing
Tracking free-weight exercises
UbiComp '07 Proceedings of the 9th international conference on Ubiquitous computing
A long-term evaluation of sensing modalities for activity recognition
UbiComp '07 Proceedings of the 9th international conference on Ubiquitous computing
CenceMe: injecting sensing presence into social networking applications
EuroSSC'07 Proceedings of the 2nd European conference on Smart sensing and context
Discriminative temporal smoothing for activity recognition from wearable sensors
UCS'07 Proceedings of the 4th international conference on Ubiquitous computing systems
Activity recognition based on intra and extra manipulation of everyday objects
UCS'07 Proceedings of the 4th international conference on Ubiquitous computing systems
Scalable recognition of daily activities with wearable sensors
LoCA'07 Proceedings of the 3rd international conference on Location-and context-awareness
Detecting intra-room mobility with signal strength descriptors
Proceedings of the eleventh ACM international symposium on Mobile ad hoc networking and computing
Identifying the activities supported by locations with community-authored content
Proceedings of the 12th ACM international conference on Ubiquitous computing
Cooperative transit tracking using smart-phones
Proceedings of the 8th ACM Conference on Embedded Networked Sensor Systems
Event-based unobtrusive authentication using multi-view image sequences
Proceedings of the first ACM international workshop on Analysis and retrieval of tracked events and motion in imagery streams
Performance metrics for activity recognition
ACM Transactions on Intelligent Systems and Technology (TIST)
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Abnormality detection for improving elder's daily life independent
ICOST'10 Proceedings of the Aging friendly technology for health and independence, and 8th international conference on Smart homes and health telematics
Object interaction detection using hand posture cues in an office setting
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Study of user interruptibility estimation based on focused application switching
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COSAR: hybrid reasoning for context-aware activity recognition
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Pervasive and Mobile Computing
Activity recognition based on RFID object usage for smart mobile devices
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Recognizing multi-user activities using wearable sensors in a smart home
Pervasive and Mobile Computing
OWL 2 modeling and reasoning with complex human activities
Pervasive and Mobile Computing
Recognizing the use of portable electrical devices with hand-worn magnetic sensors
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Passive and In-Situ assessment of mental and physical well-being using mobile sensors
Proceedings of the 13th international conference on Ubiquitous computing
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Accelerometry-based classification of human activities using Markov Modeling
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PBN: towards practical activity recognition using smartphone-based body sensor networks
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Unsupervised discovery of structure in activity data using multiple eigenspaces
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A practical approach to recognizing physical activities
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Building reliable activity models using hierarchical shrinkage and mined ontology
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Spatiotemporal analysis of human activities for biometric authentication
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UbiComp'06 Proceedings of the 8th international conference on Ubiquitous Computing
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Pervasive'10 Proceedings of the 8th international conference on Pervasive Computing
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Expert Systems with Applications: An International Journal
User-dependent aspect model for collaborative activity recognition
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A feature selection-based framework for human activity recognition using wearable multimodal sensors
Proceedings of the 6th International Conference on Body Area Networks
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Detecting leisure activities with dense motif discovery
Proceedings of the 2012 ACM Conference on Ubiquitous Computing
An integrated framework for human activity classification
Proceedings of the 2012 ACM Conference on Ubiquitous Computing
Proceedings of the 2012 ACM Conference on Ubiquitous Computing
An integrated framework for human activity recognition
Proceedings of the 2012 ACM Conference on Ubiquitous Computing
USC-HAD: a daily activity dataset for ubiquitous activity recognition using wearable sensors
Proceedings of the 2012 ACM Conference on Ubiquitous Computing
Towards the detection of unusual temporal events during activities using HMMs
Proceedings of the 2012 ACM Conference on Ubiquitous Computing
Context provenance to enhance the dependability of ambient intelligence systems
Personal and Ubiquitous Computing
Activity recognition using an egocentric perspective of everyday objects
UIC'07 Proceedings of the 4th international conference on Ubiquitous Intelligence and Computing
People, sensors, decisions: Customizable and adaptive technologies for assistance in healthcare
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Assessing physical activity in the daily life of cystic fibrosis patients
Pervasive and Mobile Computing
Learning to recognize daily actions using gaze
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Leveraging graphical models to improve accuracy and reduce privacy risks of mobile sensing
Proceeding of the 11th annual international conference on Mobile systems, applications, and services
A tutorial on human activity recognition using body-worn inertial sensors
ACM Computing Surveys (CSUR)
Computer Vision and Image Understanding
Activity recognition with hand-worn magnetic sensors
Personal and Ubiquitous Computing
Activity recognition on streaming sensor data
Pervasive and Mobile Computing
Personal and Ubiquitous Computing
Constructing the Web of Events from raw data in the Web of Things
Mobile Information Systems - Internet of Things
Learning a taxonomy of predefined and discovered activity patterns
Journal of Ambient Intelligence and Smart Environments
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Accurate recognition and tracking of human activities is an important goal of ubiquitous computing. Recent advances in the development of multi-modal wearable sensors enable us to gather rich datasets of human activities. However, the problem of automatically identifying the most useful features for modeling such activities remains largely unsolved. In this paper we present a hybrid approach to recognizing activities, which combines boosting to discriminatively select useful features and learn an ensemble of static classifiers to recognize different activities, with hidden Markov models (HMMs) to capture the temporal regularities and smoothness of activities. We tested the activity recognition system using over 12 hours of wearable-sensor data collected by volunteers in natural unconstrained environments. The models succeeded in identifying a small set of maximally informative features, and were able identify ten different human activities with an accuracy of 95%.