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» A computational approximation to the AIXI model
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TSP
2010
15 years 1 months ago
Variance-component based sparse signal reconstruction and model selection
We propose a variance-component probabilistic model for sparse signal reconstruction and model selection. The measurements follow an underdetermined linear model, where the unknown...
Kun Qiu, Aleksandar Dogandzic
SIAMIS
2011
15 years 1 months ago
Large Scale Bayesian Inference and Experimental Design for Sparse Linear Models
Abstract. Many problems of low-level computer vision and image processing, such as denoising, deconvolution, tomographic reconstruction or superresolution, can be addressed by maxi...
Matthias W. Seeger, Hannes Nickisch
SCA
2007
15 years 9 months ago
Time-critical distributed contact for 6-DoF haptic rendering of adaptively sampled reduced deformable models
Real-time evaluation of distributed contact forces for rigid or deformable 3D objects is important for providing multi-sensory feedback in emerging real-time applications, such as...
Jernej Barbic, Doug L. James
UIC
2009
Springer
16 years 1 months ago
Implicit User Re-authentication for Mobile Devices
Abstract. Portable computers are used to store and access sensitive information. They are frequently used in insecure locations with little or no physical protection, and are there...
Sausan Yazji, Xi Chen, Robert P. Dick, Peter Scheu...
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...