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» Randomness, lowness and degrees
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TON
2002
86views more  TON 2002»
15 years 6 months ago
Efficient randomized web-cache replacement schemes using samples from past eviction times
The problem of document replacement in web caches has received much attention in recent research, and it has been shown that the eviction rule "replace the least recently used...
Konstantinos Psounis, Balaji Prabhakar
SIGKDD
2010
128views more  SIGKDD 2010»
15 years 1 months ago
On cross-validation and stacking: building seemingly predictive models on random data
A number of times when using cross-validation (CV) while trying to do classification/probability estimation we have observed surprisingly low AUC's on real data with very few...
Claudia Perlich, Grzegorz Swirszcz
AAAI
2004
15 years 7 months ago
Interactive Information Extraction with Constrained Conditional Random Fields
Information Extraction methods can be used to automatically "fill-in" database forms from unstructured data such as Web documents or email. State-of-the-art methods have...
Trausti T. Kristjansson, Aron Culotta, Paul A. Vio...
INFOCOM
2010
IEEE
15 years 4 months ago
Randomized Differential DSSS: Jamming-Resistant Wireless Broadcast Communication
—Jamming resistance is crucial for applications where reliable wireless communication is required. Spread spectrum techniques such as Frequency Hopping Spread Spectrum (FHSS) and...
Yao Liu, Peng Ning, Huaiyu Dai, An Liu
TIT
2010
143views Education» more  TIT 2010»
15 years 1 months ago
Asynchronous CDMA systems with random spreading-part I: fundamental limits
Spectral efficiency for asynchronous code division multiple access (CDMA) with random spreading is calculated in the large system limit. We allow for arbitrary chip waveforms and ...
Laura Cottatellucci, Ralf R. Müller, Mé...