1075 search results - page 197 / 215 » Using Activity Theory to Model Context Awareness |
CIKM
2004
Springer
14 years 2 months ago
2004
Springer
Our work is motivated by the problem of ranking hyperlinked documents for a given query. Given an arbitrary directed graph with edge and node labels, we present a new flow-based ...
ICIP
1999
IEEE
14 years 1 months ago
1999
IEEE
Segmentation of motion in an image sequence is one of the most challenging problems in image processing, while at the same time one that finds numerous applications. To date, a wea...
MOBICOM
2004
ACM
14 years 2 months ago
2004
ACM
Sensor networks are often desired to last many times longer than the active lifetime of individual sensors. This is usually achieved by putting sensors to sleep for most of their ...
ICWSM
2010
2010
Who Acquires Friends Through Social Media and Why? "Rich Get Richer" Versus "Seek and Ye Shall Find"
13 years 10 months ago
There is an ongoing debate, not just among academics but in popular culture, about whether social media can expand people's social networks, and whether online friends can be...
SACMAT
2006
ACM
14 years 2 months ago
2006
ACM
Delegation of authority is an important process that needs to be captured by any access control model. In role-based access control models, delegation of authority involves delega...