نتایج جستجو برای: الگوریتم svr

تعداد نتایج: 26097  

Journal: :JCP 2013
Qian Meng Xiaoping Ma Yan Zhou

Forecasting of gas emission rate in mine is a complicated problem due to its nonlinearity and the small quantity of training data. Support vector regression (SVR) can solve the problem with small samples, nonlinear and high dimensions. However, the precision of SVR is significantly affected by its parameter. In order to improve the mine gas emission rate accurately, an optimal selection approac...

2012
Mingfeng Jiang Feng Liu Yaming Wang Guofa Shou Wenqing Huang Huaxiong Zhang

Noninvasive electrocardiographic imaging, such as the reconstruction of myocardial transmembrane potentials (TMPs) distribution, can provide more detailed and complicated electrophysiological information than the body surface potentials (BSPs). However, the noninvasive reconstruction of the TMPs from BSPs is a typical inverse problem. In this study, this inverse ECG problem is treated as a regr...

Journal: :Journal of viral hepatitis 2011
S Mauss D Hueppe C John J Goelz R Heyne B Moeller R Link G Teuber A Herrmann M Spelter S Wollschlaeger A Baumgarten K-G Simon N Dikopoulos T Witthoeft

The likelihood of a sustained virological response (SVR) is the most important factor for physicians and patients in the decision to initiate and continue therapy for chronic hepatitis C (CHC) infection. This study identified predictive factors for SVR with peginterferon plus ribavirin (RBV) in patients with CHC treated under 'real-life' conditions. The study cohort consisted of patients from a...

Journal: :Alimentary pharmacology & therapeutics 2010
A G Singal A K Waljee M Shiffman B R Bacon P S Schoenfeld

BACKGROUND The efficacy of re-treating genotype I hepatitis C virus (HCV) patients who failed combination therapy with interferon/pegylated interferon (PEG-IFN) and ribavirin remains unclear. AIMS To quantify sustained virological response (SVR) rates with different re-treatment regimens through meta-analysis of randomized controlled trials (RCTs). METHODS Randomized controlled trials of ge...

Journal: :Indian journal of gastroenterology : official journal of the Indian Society of Gastroenterology 2005
V Thakur S K Sarin S Rehman R C Guptan S N Kazim S Kumar

BACKGROUND Predictors of response of chronic hepatitis B (CHB) to lamivudine therapy need better definition. Whether hepatitis B virus (HBV) genotypes could serve as such a predictor has not been well studied. AIM To study the association of HBV genotypes with the outcome of lamivudine treatment in patients with CHB. METHODS Seventy-six patients with CHB (45 HBeAg +ve) received lamivudine 1...

Journal: :Journal of clinical microbiology 2015
Sylvie Larrat Om Kulkarni Jean-Baptiste Claude Réjane Beugnot Michaël G B Blum Katia Fusillier Julien Lupo Pauline Tremeaux Agnès Plages Alice Marlu Hervé Duborjal Anne Signori-Schmuck Olivier Francois Jean-Pierre Zarski Patrice Morand Vincent Leroy

Despite the gain in sustained virological responses (SVR) provided by protease inhibitors (PIs), failures still occur. The aim of this study was to determine if a baseline analysis of the NS3 region using ultradeep pyrosequencing (UDPS) can help to predict an SVR. Serum samples from 40 patients with previously nonresponding genotype 1 chronic hepatitis C who were retreated with triple therapy, ...

Journal: :Journal of viral hepatitis 2013
J L Casado C Quereda A Moreno M J Pérez-Elías P Martí-Belda S Moreno

There are few data about the long-term histological outcome of HIV-/HCV-coinfected patients after therapy with interferon and ribavirin. We performed an observational study of 216 patients who received therapy against HCV and who had at least three successive transient elastographies (TE) during the follow-up. The primary endpoint was confirmed fibrosis regression, defined as a reduction of at ...

2016
L.P. Zanaga N. Miotto L.C. Mendes R.S.B. Stucchi A.G. Vigani

Hepatitis C virus (HCV) genotype 3 is responsible for 30.1% of chronic hepatitis C infection cases worldwide. In the era of direct-acting antivirals, these patients have become one of the most challenging to treat, due to fewer effective drug options, higher risk of developing cirrhosis and hepatocellular carcinoma and lower sustained virological response (SVR) rates. Currently there are 4 reco...

2013
Ayman A. Abdo Mohammed N. Al-Ahdal Saira S. Khalid Ahmed Helmy Faisal M. Sanai Khalid Alswat Waleed Al-hamoudi Safiyya M. Ali Hamad I. Al-Ashgar Abdallah Al-Mdani Ali Albenmousa Faleh Z. Al Faleh Mashael Al-Anazi Nisreen Khalaf Ahmed Al-Qahtani

BACKGROUND Genome-wide association studies have recently revealed that several single-nucleotide polymorphisms (SNPs) in the interleukin (IL) 28B genes can predict the sustained virological response (SVR) to pegylated interferon-α2a/b plus ribavirin in hepatitis C virus (HCV)-genotype 1 patients. However, data for patients infected with HCV genotype 4 (HCV-G4) are limited. AIM We analyzed the...

2017
Geng-Lin Zhang You-Ming Chen Ting Zhang Qing-Xian Cai Xiao-Hong Zhang Zhi-Xing Zhao Chao-Shuang Lin Zhi-Liang Gao

Few studies have conducted follow-up investigations of the clinical course in HCV-related cirrhotic patients who achieved a sustained virological response (SVR) with pegylated interferon plus ribavirin treatment (PegIFN + RBV). We investigated the clinical course and laboratory data in a prospective cohort study enrolling HCV-related cirrhotic patients who received PegIFN + RBV between August 2...

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