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» The Expressive Rate of Constraints
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WWW
2010
ACM
13 years 10 months ago
How useful are your comments?: analyzing and predicting youtube comments and comment ratings
An analysis of the social video sharing platform YouTube reveals a high amount of community feedback through comments for published videos as well as through meta ratings for thes...
Stefan Siersdorfer, Sergiu Chelaru, Wolfgang Nejdl...
QUESTA
2008
89views more  QUESTA 2008»
13 years 9 months ago
The asymptotic variance rate of the output process of finite capacity birth-death queues
We analyze the output process of finite capacity birth-death Markovian queues. We develop a formula for the asymptotic variance rate of the form + vi where is the rate of outputs...
Yoni Nazarathy, Gideon Weiss
SECON
2007
IEEE
14 years 4 months ago
A Semi Markov-based Analysis of Rate Adaptation Algorithms in Wireless LANs
Abstract— Rate adaptation plays a key role in determining the performance of wireless LANs. In this paper, we introduce a semi-Markovian framework to analyze the performance of t...
Angad Singh, David Starobinski
DCC
2008
IEEE
13 years 11 months ago
Rate Bounds on SSIM Index of Quantized Image DCT Coefficients
In this paper, we derive bounds on the Structural SIMilarity (SSIM) Index as a function of quantization rate for fixed-rate uniform quantization of image discrete cosine transform...
Sumohana S. Channappayya, Alan C. Bovik, Robert W....
COLING
2010
13 years 4 months ago
The Bag-of-Opinions Method for Review Rating Prediction from Sparse Text Patterns
The problem addressed in this paper is to predict a user's numeric rating in a product review from the text of the review. Unigram and n-gram representations of text are comm...
Lizhen Qu, Georgiana Ifrim, Gerhard Weikum