Contextual design: defining customer-centered systems
Contextual design: defining customer-centered systems
Understanding and Using Context
Personal and Ubiquitous Computing
Activity and Location Recognition Using Wearable Sensors
IEEE Pervasive Computing
Automatic retrieval and clustering of similar words
COLING '98 Proceedings of the 17th international conference on Computational linguistics - Volume 2
Inferring Activities from Interactions with Objects
IEEE Pervasive Computing
A large scale study of wireless search behavior: Google mobile search
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Sensing from the basement: a feasibility study of unobtrusive and low-cost home activity recognition
UIST '06 Proceedings of the 19th annual ACM symposium on User interface software and technology
Discovery of activity patterns using topic models
UbiComp '08 Proceedings of the 10th international conference on Ubiquitous computing
Changing places: contexts of awareness in computing
Human-Computer Interaction
Seeking a foundation for context-aware computing
Human-Computer Interaction
Pervasive '08 Proceedings of the 6th International Conference on Pervasive Computing
Recognizing daily activities with RFID-based sensors
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
A hybrid discriminative/generative approach for modeling human activities
IJCAI'05 Proceedings of the 19th international joint conference on Artificial intelligence
Tracking free-weight exercises
UbiComp '07 Proceedings of the 9th international conference on Ubiquitous computing
UbiComp '07 Proceedings of the 9th international conference on Ubiquitous computing
An 'object-use fingerprint': the use of electronic sensors for human identification
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
Opportunities exist: continuous discovery of places to perform activities
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Aggregation and exploration of heterogeneous data collected from diverse information sources
Proceedings of 1st international symposium on From digital footprints to social and community intelligence
Evaluating the implicit acquisition of second language vocabulary using a live wallpaper
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
A media-based social interactions analysis procedure
Proceedings of the 27th Annual ACM Symposium on Applied Computing
Making sense of location context
Proceedings of the 1st International Workshop on Context Discovery and Data Mining
Human activity recognition using social media data
Proceedings of the 12th International Conference on Mobile and Ubiquitous Multimedia
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Community-authored content, such as location specific reviews, offers a wealth of information about virtually every imaginable location today. In this work, we process Yelp's community-authored reviews to identify a set of potential activities that are supported by the location reviewed. Using 14 test locations we show that the majority of the 40 most common results per location (determined by verb-noun pair frequency) are actual activities supported by their respective locations, achieving a mean precision of up to 79.3%. Although the number of reviews authored for a location has a strong influence on precision, we are able to achieve a precision up to 29.5% when processing only the first 50 reviews, increasing to 45.7% and 57.3% for the first 100 and 200 reviews, respectively. In addition, we present two context-aware services that leverage location-based activity information on a city scale that is accessible through a Web service we developed supporting multiple cities in North America.