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ER
2007
Springer
108views Database» more  ER 2007»
14 years 2 months ago
Reasoning over Extended ER Models
Abstract. We investigate the computational complexity of reasoning over various fragments of the Extended Entity-Relationship (EER) language, which includes a number of constructs:...
Alessandro Artale, Diego Calvanese, Roman Kontchak...
MOBISYS
2011
ACM
12 years 11 months ago
ProxiMate: proximity-based secure pairing using ambient wireless signals
Forming secure associations between wireless devices that do not share a prior trust relationship is an important problem. This paper presents ProxiMate, a system that allows wire...
Suhas Mathur, Robert C. Miller, Alexander Varshavs...
JCM
2008
69views more  JCM 2008»
13 years 8 months ago
Strategies Averting Sybil-type Attacks Based on the Blom-scheme in Ad Hoc Sensor Networks
We present a scheme based on the Blom scheme for resisting the Sybil type attacks. In this scheme, the authority pre-distributes the combination of the secret used in the Blom sche...
Shiuh-Jeng Wang, Yuh-Ren Tsai, Chung-Wei Chen
GIS
2010
ACM
13 years 7 months ago
Decentralized querying of topological relations between regions without using localization
This paper proposes an efficient, decentralized algorithm for determining the topological relationship between two regions monitored by a geosensor network. Many centralized algo...
Matt Duckham, Myeong Hun Jeong, Sanjiang Li, Joche...
ICRA
2005
IEEE
158views Robotics» more  ICRA 2005»
14 years 2 months ago
Autonomous Helicopter Landing on a Moving Platform Using a Tether
—In this paper, we address the design of an autopilot for autonomous landing of a helicopter on a rocking ship, due to rough sea. The deck is modeled to have a sinusoidal motion....
So-Ryeok Oh, Kaustubh Pathak, Sunil Kumar Agrawal,...