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FOCS
2008
IEEE
16 years 1 months ago
On the Hardness of Being Truthful
The central problem in computational mechanism design is the tension between incentive compatibility and computational ef ciency. We establish the rst significant approximability ...
Christos H. Papadimitriou, Michael Schapira, Yaron...
IAT
2008
IEEE
16 years 1 months ago
Introducing Communication in Dis-POMDPs with Locality of Interaction
The Networked Distributed POMDPs (ND-POMDPs) can model multiagent systems in uncertain domains and has begun to scale-up the number of agents. However, prior work in ND-POMDPs has ...
Makoto Tasaki, Yuichi Yabu, Yuki Iwanari, Makoto Y...
192
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MMSP
2008
IEEE
216views Multimedia» more  MMSP 2008»
16 years 1 months ago
Using stochastic gradient-descent scheme in appearance model based face tracking
— Active appearance model (AAM) has been widely used in face tracking and recognition. However, accuracy and efficiency are always two main challenges with the AAM search. The pa...
Zhidong Li, Jing Chen, Adrian Chong, Zhenghua Yu, ...
SASO
2008
IEEE
16 years 1 months ago
Using Global Information for Load Balancing in DHTs
Distributed Hash Tables (DHT) with order-preserving hash functions require load balancing to ensure an even item-load over all nodes. While previous item-balancing algorithms only...
Mikael Högqvist, Seif Haridi, Nico Kruber, Al...
VTC
2008
IEEE
179views Communications» more  VTC 2008»
16 years 1 months ago
Relay Subset Selection in Wireless Networks Using Partial Decode-and-Forward Transmission
This paper considers the problem of selecting a subset of nodes in a two-hop wireless network to act as relays in aiding the communication between the source-destination pair. Opt...
Caleb K. Lo, Sriram Vishwanath, Robert W. Heath Jr...
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