16 search results - page 3 / 4 » Thresholding methods to estimate copula density |
EMNLP
2006
13 years 8 months ago
2006
This paper proposes an unsupervised lexicon building method for the detection of polar clauses, which convey positive or negative aspects in a specific domain. The lexical entries...
ICPR
2006
IEEE
14 years 8 months ago
2006
IEEE
In this study a confidence measure for probability density functions (pdfs) is presented. The measure can be used in one-class classification to select a pdf threshold for class i...
ICASSP
2009
IEEE
14 years 2 months ago
2009
IEEE
In this paper we propose a nonparametric hypothesis test for stationarity based on local Fourier analysis. We employ a test statistic that measures the variation of time-localized...
ICIP
2006
IEEE
14 years 9 months ago
2006
IEEE
This paper proposes to combine spatial and color coherency with the pixel-wise GMM to determine the background model. We first represent each pixel with a hybrid feature vector, w...
BILDMED
2007
13 years 8 months ago
2007
The software-assisted planning of radiofrequency-ablation of liver tumors calls for robust and fast methods to segment the tumor and surrounding vascular structures from clinical d...