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WWW
2008
ACM
16 years 4 months ago
Social and semantics analysis via non-negative matrix factorization
Social media such as Web forum often have dense interactions between user and content where network models are often appropriate for analysis. Joint non-negative matrix factorizat...
Zhi-Li Wu, Chi-Wa Cheng, Chun-hung Li
PERCOM
2005
ACM
16 years 3 months ago
Supporting Topographic Queries in a Class of Networked Sensor Systems
Topographic querying is the process of extracting data from a sensor network for understanding the graphic delineation of features of interest in a terrain. Query processing techn...
Mitali Singh, Viktor K. Prasanna
124
Voted
WWW
2010
ACM
15 years 10 months ago
On the high density of leadership nuclei in endorsement social networks
In this paper we study the community structure of endorsement networks, i.e., social networks in which a directed edge u → v is asserting an action of support from user u to use...
Guillermo Garrido, Francesco Bonchi, Aristides Gio...
146
Voted
ICRA
2009
IEEE
248views Robotics» more  ICRA 2009»
15 years 10 months ago
Moving obstacle detection in highly dynamic scenes
Abstract— We address the problem of vision-based multiperson tracking in busy pedestrian zones using a stereo rig mounted on a mobile platform. Specifically, we are interested i...
Andreas Ess, Bastian Leibe, Konrad Schindler, Luc ...
186
Voted
SIGCOMM
2009
ACM
15 years 10 months ago
Opportunistic forwarding in workplaces
So far, the search for Opportunistic Network (ON) applications has focused on urban/rural scenarios where the combined use of mobility and the store-carry-and-forward paradigm hel...
Sabrina Gaito, Elena Pagani, Gian Paolo Rossi