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» A calculus of challenges and responses
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ICDE
2010
IEEE
227views Database» more  ICDE 2010»
14 years 5 months ago
Incorporating partitioning and parallel plans into the SCOPE optimizer
— Massive data analysis on large clusters presents new opportunities and challenges for query optimization. Data partitioning is crucial to performance in this environment. Howev...
Jingren Zhou, Per-Åke Larson, Ronnie Chaiken
PERVASIVE
2009
Springer
14 years 5 months ago
Situvis: A Visual Tool for Modeling a User's Behaviour Patterns in a Pervasive Environment
Abstract. One of the key challenges faced when developing contextaware pervasive systems is to capture the set of inputs that we want a system to adapt to. Arbitrarily specifying r...
Adrian K. Clear, Ross Shannon, Thomas Holland, Aar...
P2P
2009
IEEE
112views Communications» more  P2P 2009»
14 years 4 months ago
SyMon: Defending large structured P2P systems against Sybil Attack
Sybil attack is one of the most challenging problems that plague current decentralized Peer-to-Peer systems. In Sybil attack, a single malicious user creates multiple peer identit...
B. S. Jyothi, D. Janakiram
RTCSA
2009
IEEE
14 years 4 months ago
Event-Based Location Dependent Data Services in Mobile WSNs
—Mobile sensors are widely deployed in Wireless Sensor Networks (WSNs) to satisfy emerging application requirements. Specifically, processing location dependent queries in mobile...
Liang Hong, Yafeng Wu, Sang Hyuk Son, Yansheng Lu
IROS
2009
IEEE
110views Robotics» more  IROS 2009»
14 years 4 months ago
Autonomous indoor helicopter flight using a single onboard camera
— We consider the problem of autonomously flying a helicopter in indoor environments. Navigation in indoor settings poses two major challenges. First, real-time perception and r...
Sai Prashanth Soundararaj, Arvind K. Sujeeth, Ashu...