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COLING
2010
15 years 2 months ago
A Large Scale Ranker-Based System for Search Query Spelling Correction
This paper makes three significant extensions to a noisy channel speller designed for standard written text to target the challenging domain of search queries. First, the noisy ch...
Jianfeng Gao, Xiaolong Li, Daniel Micol, Chris Qui...
TIT
2011
106views more  TIT 2011»
15 years 2 months ago
Interference Alignment-Based Sum Capacity Bounds for Random Dense Gaussian Interference Networks
We consider a dense K user Gaussian interference network formed by paired transmitters and receivers placed independently at random in a fixed spatial region. Under natural condi...
Oliver Johnson, Matthew Aldridge, Robert J. Piecho...
TIT
2010
121views Education» more  TIT 2010»
15 years 1 months ago
Mismatched estimation and relative entropy
A random variable with distribution P is observed in Gaussian noise and is estimated by a minimum meansquare estimator that assumes that the distribution is Q. This paper shows tha...
Sergio Verdú
ICASSP
2011
IEEE
14 years 10 months ago
Detection diversity of multiantenna spectrum sensors
In the context of spectrum sensing, we investigate the performance of detectors equipped with M antennas (co-located or distributed) under Rayleigh fading, in terms of detection d...
Gonzalo Vazquez-Vilar, Roberto López-Valcar...
DAIS
2011
14 years 10 months ago
Modeling the Performance of Ring Based DHTs in the Presence of Network Address Translators
Abstract. Dealing with Network Address Translators (NATs) is a central problem in many peer-to-peer applications on the Internet today. However, most analytical models of overlay n...
John Ardelius, Boris Mejías