Fundamentals of speech recognition
Fundamentals of speech recognition
Adaptive Probabilistic Networks with Hidden Variables
Machine Learning - Special issue on learning with probabilistic representations
Principles of mixed-initiative user interfaces
Proceedings of the SIGCHI conference on Human Factors in Computing Systems
A framework for recognizing multi-agent action from visual evidence
AAAI '99/IAAI '99 Proceedings of the sixteenth national conference on Artificial intelligence and the eleventh Innovative applications of artificial intelligence conference innovative applications of artificial intelligence
The Hierarchical Hidden Markov Model: Analysis and Applications
Machine Learning
Discovery and Segmentation of Activities in Video
IEEE Transactions on Pattern Analysis and Machine Intelligence
Recognition of Visual Activities and Interactions by Stochastic Parsing
IEEE Transactions on Pattern Analysis and Machine Intelligence
Learning variable-length Markov models of behavior
Computer Vision and Image Understanding - Modeling people toward vision-based underatanding of a person's shape, appearance, and movement
Discrete Time Processing of Speech Signals
Discrete Time Processing of Speech Signals
Coupled hidden Markov models for complex action recognition
CVPR '97 Proceedings of the 1997 Conference on Computer Vision and Pattern Recognition (CVPR '97)
The Representation and Recognition of Human Movement Using Temporal Templates
CVPR '97 Proceedings of the 1997 Conference on Computer Vision and Pattern Recognition (CVPR '97)
A Bayesian Approach to Human Activity Recognition
VS '99 Proceedings of the Second IEEE Workshop on Visual Surveillance
Real-time American Sign Language recognition from video using hidden Markov models
ISCV '95 Proceedings of the International Symposium on Computer Vision
Judging People's Availability for Interaction from Video Snapshots
HICSS '99 Proceedings of the Thirty-Second Annual Hawaii International Conference on System Sciences-Volume 1 - Volume 1
Towards perceptual intelligence: statistical modeling of human individual and interactive behaviors
Towards perceptual intelligence: statistical modeling of human individual and interactive behaviors
Recognition and Interpretation of Parametric Gesture
ICCV '98 Proceedings of the Sixth International Conference on Computer Vision
Building Qualitative Event Models Automatically from Visual Input
ICCV '98 Proceedings of the Sixth International Conference on Computer Vision
Unsupervised clustering of ambulatory audio and video
ICASSP '99 Proceedings of the Acoustics, Speech, and Signal Processing, 1999. on 1999 IEEE International Conference - Volume 06
An embedded HMM-based approach for face detection and recognition
ICASSP '99 Proceedings of the Acoustics, Speech, and Signal Processing, 1999. on 1999 IEEE International Conference - Volume 06
UAI'99 Proceedings of the Fifteenth conference on Uncertainty in artificial intelligence
The lumière project: Bayesian user modeling for inferring the goals and needs of software users
UAI'98 Proceedings of the Fourteenth conference on Uncertainty in artificial intelligence
IEEE Transactions on Pattern Analysis and Machine Intelligence
Activity-based serendipitous recommendations with the Magitti mobile leisure guide
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Interaction-aware energy management for wireless network cards
SIGMETRICS '08 Proceedings of the 2008 ACM SIGMETRICS international conference on Measurement and modeling of computer systems
Audiovisual integration with Segment Models for tennis video parsing
Computer Vision and Image Understanding
Motion intention recognition in robot assisted applications
Robotics and Autonomous Systems
Searching for Complex Human Activities with No Visual Examples
International Journal of Computer Vision
A Fuzzy Rule-Based System with Ontology for Summarization of Multi-camera Event Sequences
ICAISC '08 Proceedings of the 9th international conference on Artificial Intelligence and Soft Computing
Hierarchical group process representation in multi-agent activity recognition
Image Communication
Learning Discriminative Sequence Models from Partially Labelled Data for Activity Recognition
PRICAI '08 Proceedings of the 10th Pacific Rim International Conference on Artificial Intelligence: Trends in Artificial Intelligence
EnsembleMatrix: interactive visualization to support machine learning with multiple classifiers
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
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
Histogram of oriented rectangles: A new pose descriptor for human action recognition
Image and Vision Computing
CPM: context-aware power management in WLANs
IAAI'06 Proceedings of the 18th conference on Innovative applications of artificial intelligence - Volume 2
On-line recognition of surgical activity for monitoring in the operating room
IAAI'08 Proceedings of the 20th national conference on Innovative applications of artificial intelligence - Volume 3
Social signal processing: Survey of an emerging domain
Image and Vision Computing
An empirical study on using hidden markov model for search interface segmentation
Proceedings of the 18th ACM conference on Information and knowledge management
Hierarchical control models for multimodal process modeling
IEEE Transactions on Systems, Man, and Cybernetics, Part B: Cybernetics
Context-Aware User and Service Profiling by Means of Generalized Association Rules
KES '09 Proceedings of the 13th International Conference on Knowledge-Based and Intelligent Information and Engineering Systems: Part II
Learning to recognize video-based spatiotemporal events
IEEE Transactions on Intelligent Transportation Systems
CSCWD'06 Proceedings of the 10th international conference on Computer supported cooperative work in design III
Online analysis of hierarchical events in meetings
UI-HCII'07 Proceedings of the 2nd international conference on Usability and internationalization
Computer Vision and Image Understanding
Recognition of user activity sequences using distributed event detection
EuroSSC'07 Proceedings of the 2nd European conference on Smart sensing and context
Decomposition in hidden Markov models for activity recognition
MCAM'07 Proceedings of the 2007 international conference on Multimedia content analysis and mining
Human action recognition using distribution of oriented rectangular patches
Proceedings of the 2nd conference on Human motion: understanding, modeling, capture and animation
Three layered hidden Markov models for binary digital wireless channels
ICC'09 Proceedings of the 2009 IEEE international conference on Communications
Activity recognition using semi-Markov models on real world smart home datasets
Journal of Ambient Intelligence and Smart Environments
An activity monitoring system for elderly care using generative and discriminative models
Personal and Ubiquitous Computing
Recognising Agent Behaviour During Variable Length Activities
Proceedings of the 2010 conference on ECAI 2010: 19th European Conference on Artificial Intelligence
Anomaly detection over spatiotemporal object using adaptive piecewise model
PRICAI'10 Proceedings of the 11th Pacific Rim international conference on Trends in artificial intelligence
Object interaction detection using hand posture cues in an office setting
International Journal of Human-Computer Studies
IEEE Transactions on Systems, Man, and Cybernetics, Part A: Systems and Humans
Conference Internationale Francophone sur I'Interaction Homme-Machine
Unsupervised action classification using space-time link analysis
Journal on Image and Video Processing
Recognizing continuous grammatical marker facial gestures in sign language video
ACCV'10 Proceedings of the 10th Asian conference on Computer vision - Volume Part IV
Activity recognition using eye-gaze movements and traditional interactions
Interacting with Computers
Recognizing multi-user activities using wearable sensors in a smart home
Pervasive and Mobile Computing
Exploring semantics in activity recognition using context lattices
Journal of Ambient Intelligence and Smart Environments
HAIS'11 Proceedings of the 6th international conference on Hybrid artificial intelligent systems - Volume Part I
Context-Based scene recognition using bayesian networks with scale-invariant feature transform
ACIVS'06 Proceedings of the 8th international conference on Advanced Concepts For Intelligent Vision Systems
Toward adaptive information fusion in multimodal systems
MLMI'05 Proceedings of the Second international conference on Machine Learning for Multimodal Interaction
Bayesian filter based behavior recognition in workflows allowing for user feedback
Computer Vision and Image Understanding
From motion patterns to visual concepts for event analysis in dynamic scenes
ACCV'06 Proceedings of the 7th Asian conference on Computer Vision - Volume Part I
A comparison of HMMs and dynamic bayesian networks for recognizing office activities
UM'05 Proceedings of the 10th international conference on User Modeling
Transferring knowledge of activity recognition across sensor networks
Pervasive'10 Proceedings of the 8th international conference on Pervasive Computing
Combining user modeling and machine learning to predict users' multimodal integration patterns
MLMI'06 Proceedings of the Third international conference on Machine Learning for Multimodal Interaction
Semantic management of multiple contexts in a pervasive computing framework
Expert Systems with Applications: An International Journal
Workflow activity monitoring using dynamics of pair-wise qualitative spatial relations
MMM'12 Proceedings of the 18th international conference on Advances in Multimedia Modeling
MLDM'12 Proceedings of the 8th international conference on Machine Learning and Data Mining in Pattern Recognition
A method for online analysis of structured processes using bayesian filters and echo state networks
ECCV'12 Proceedings of the 12th international conference on Computer Vision - Volume Part III
Video content categorization using the double decomposition
Multimedia Tools and Applications
On hierarchical modelling of motion for workflow analysis from overhead view
Machine Vision and Applications
A top-down event-driven approach for concurrent activity recognition
Multimedia Tools and Applications
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We present the use of layered probabilistic representations for modeling human activities, and describe how we use the representation to do sensing, learning, and inference at multiple levels of temporal granularity and abstraction and from heterogeneous data sources. The approach centers on the use of a cascade of Hidden Markov Models named Layered Hidden Markov Models (LHMMs) to diagnose states of a user's activity based on real-time streams of evidence from video, audio, and computer (keyboard and mouse) interactions. We couple these LHMMs with an expected utility analysis that considers the cost of misclassification. We describe the representation, present an implementation, and report on experiments with our layered architecture in a real-time office-awareness setting.