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CSCW
2002
ACM
15 years 6 months ago
Activity Theory and System Design: A View from the Trenches
An activity theory model and a mediating artifacts hierarchy were employed to help identify the needs for tools for customer support engineers who documented solutions to customer...
Patricia Collins, Shilpa Shukla, David F. Redmiles
ISCAS
2011
IEEE
237views Hardware» more  ISCAS 2011»
14 years 10 months ago
A new network-based algorithm for multi-camera abnormal activity detection
In this paper, a new abnormal activity detection algorithm is proposed for multi-camera surveillance applications. The proposed algorithm models the entire scene covered by the mu...
Hongyu Gao, Weiyao Lin, Xiaokang Yang, Hongxiang L...
ARESEC
2011
110views more  ARESEC 2011»
14 years 6 months ago
ACON: Activity-Centric Access Control for Social Computing
—With increasing amount of sensitive user data stored in social computing systems (SCSs) and lack of consensus on how it should be protected under meaningful control by the avera...
Jaehong Park, Ravi S. Sandhu, Yuan Cheng
ICDM
2009
IEEE
205views Data Mining» more  ICDM 2009»
16 years 1 months ago
Active Selection of Sensor Sites in Remote Sensing Applications
— In a data-mining approach, a model for estimation of Aerosol Optical Depth (AOD) from satellite observations is learned using collocated satellite and groundbased observations....
Debasish Das, Zoran Obradovic, Slobodan Vucetic
ICRA
2009
IEEE
174views Robotics» more  ICRA 2009»
16 years 1 months ago
Environment adapted active multi-focal vision system for object detection
— A biologically inspired foveated attention system in an object detection scenario is proposed. Thereby, a highperformance active multi-focal camera system imitates visual behav...
Tingting Xu, Hao Wu, Tianguang Zhang, Kolja Kü...