نتایج جستجو برای: spearman coefficient

تعداد نتایج: 176394  

2014
Elizabeth A. Garofoli David Harris

Methods: As the Multicenter ACL (anterior cruciate ligament) Revision Study (MARS) Group, we conducted a multicenter, prospective longitudinal cohort study of patients undergoing revision surgery after anterior cruciate ligament reconstruction. We followed 632 patients who underwent radiographic evaluation of the knee (an anteroposterior weight-bearing radiograph, a posteroanterior weight-beari...

2014

Node localization technology is a key technology of WSN, and this paper proposes a rank sequence localization algorithm based on Voronoi and Spearman. First of all, the paper divides the localization space of WSN according to the Voronoi diagram, takes the polygon’s points, center of gravity and the boundary intersection as virtual anchor nodes, and builds the rank sequence list for virtual anc...

Journal: :Archives of surgery 2001
N K Francis G B Hanna A Cuschieri

OBJECTIVE To evaluate the reliability of the Advanced Dundee Endoscopic Psychomotor Tester (ADEPT). DESIGN The Advanced Dundee Endoscopic Psychomotor Tester was developed for objective evaluation of bimanual endoscopic tasks. The system is in several aspects relevant to an actual endoscopic environment, and initial studies showed a strong correlation with clinical competence. Twenty medical s...

2016
Geoffrey G. Zhang Kujtim Latifi Kaifang Du Joseph M. Reinhardt Gary E. Christensen Kai Ding Vladimir Feygelman Eduardo G. Moros

Ventilation distribution calculation using 4D CT has shown promising potential in several clinical applications. This study evaluated the direct geometric ventilation calculation method, namely the ΔV method, with xenon-enhanced CT (XeCT) ventilation data from four sheep, and compared it with two other published meth-ods, the Jacobian and the Hounsfield unit (HU) methods. Spearman correlation c...

Journal: :Swiss Medical Forum ‒ Schweizerisches Medizin-Forum 2010

2011
Yannis Haralambous Vitaly Klyuev

We describe a new semantic relatedness measure combining the Wikipedia-based Explicit Semantic Analysis measure, the WordNet path measure and the mixed collocation index. Our measure achieves the currently highest results on the WS-353 test: a Spearman ρ coefficient of 0.79 (vs. 0.75 in (Gabrilovich and Markovitch, 2007)) when applying the measure directly, and a value of 0.87 (vs. 0.78 in (Agi...

Journal: :The Journal of infectious diseases 2010
Dennis L Chao M Elizabeth Halloran Ira M Longini

The opening of schools in the late summer of 2009 may have triggered the fall wave of pandemic influenza A(H1N1) in the United States. We found that an elevated percentage of outpatient visits for influenza-like illness occurred an average of 14 days after schools opened in the fall of 2009. The timing of these events was highly correlated (Spearman correlation coefficient, 0.62; P<.001). This ...

Journal: :Radiology 2003
Kelly H Zou Kemal Tuncali Stuart G Silverman

In this tutorial article, the concepts of correlation and regression are reviewed and demonstrated. The authors review and compare two correlation coefficients, the Pearson correlation coefficient and the Spearman rho, for measuring linear and nonlinear relationships between two continuous variables. In the case of measuring the linear relationship between a predictor and an outcome variable, s...

2005
René Witte Ralf Krestel Sabine Bergler

We present ERSS 2005, our entry to this year’s DUC competition. With only slight modifications from last year’s version to accommodate the more complex context information present in DUC 2005, we achieved a similar performance to last year’s entry, ranking roughly in the upper third when examining the ROUGE-1 and Basic Element score. We also participated in the additional manual evaluation base...

2002
Chin-Yew Lin Eduard Hovy

In this paper we discuss manual and automatic evaluations of summaries using data from the Document Understanding Conference 2001 (DUC-2001). We first show the instability of the manual evaluation. Specifically, the low interhuman agreement indicates that more reference summaries are needed. To investigate the feasibility of automated summary evaluation based on the recent BLEU method from mach...

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