نتایج جستجو برای: الگوریتم svr

تعداد نتایج: 26097  

2017
Kazunori Yoh Hiroki Nishikawa Hirayuki Enomoto Akio Ishii Yoshinori Iwata Yuho Miyamoto Noriko Ishii Yukihisa Yuri Kunihiro Hasegawa Chikage Nakano Takashi Nishimura Nobuhiro Aizawa Yoshiyuki Sakai Naoto Ikeda Tomoyuki Takashima Ryo Takata Hiroko Iijima Shuhei Nishiguchi

AIMS We aimed to examine changes in skeletal muscle mass in chronic hepatitis C (CHC) patients undergoing interferon (IFN)-free direct acting antivirals (DAAs) therapy who achieved sustained virological response (SVR). PATIENTS AND METHODS A total of 69 CHC patients treated with DAAs were analyzed. We compared the changes in skeletal muscle index (SMI) using bio-impedance analysis at baseline...

Journal: :Expert Syst. Appl. 2009
Cheng-Lung Huang Cheng-Yi Tsai

Stock market price index prediction is regarded as a challenging task of the financial time series prediction process. Support vector regression (SVR) has successfully solved prediction problems in many domains, including the stock market. This paper hybridizes SVR with the self-organizing feature map (SOFM) technique and a filter-based feature selection to reduce the cost of training time and ...

2013
Zhongyi Hu Yukun Bao Tao Xiong

Electricity load forecasting is an important issue that is widely explored and examined in power systems operation literature and commercial transactions in electricity markets literature as well. Among the existing forecasting models, support vector regression (SVR) has gained much attention. Considering the performance of SVR highly depends on its parameters; this study proposed a firefly alg...

2013
Akihito Tsubota Tomomi Furihata Yoshihiro Matsumoto Kan Chiba

Direct-acting antivirals (DAAs) in combination with pegylated IFN-a and ribavirin drastically improve the rates of rapid virological response (RVR) and sustained virological response (SVR) in the treatment of chronic hepatitis C virus infection, specifically in difficult-to-cure hepatitis C virus genotype 1. At present, RVR is an important milestone highly predictive of SVR. Response-guided the...

2002
Haiqin Yang Lai-Wan Chan Irwin King

Recently, Support Vector Regression (SVR) has been introduced to solve regression and prediction problems. In this paper, we apply SVR to financial prediction tasks. In particular, the financial data are usually noisy and the associated risk is time-varying. Therefore, our SVR model is an extension of the standard SVR which incorporates margins adaptation. By varying the margins of the SVR, we ...

2011
Lijing Zhang Zhijian Song Xiaodong Pan Mingguang Feng Zhihua Jin

Due to the complexity and high non-linearity of bioprocess, most simple mathematical models fail to describe the exact behavior of biochemistry systems. As a novel type of learning method, support vector regression (SVR) owns the powerful capability to characterize problems via small sample, nonlinearity, high dimension and local minima. In this paper, we developed a ν-SVR model with genetic al...

2009
Byeong-jun Han Seungmin Rho Roger B. Dannenberg Eenjun Hwang

Music emotion plays an important role in music retrieval, mood detection and other music-related applications. Many issues for music emotion recognition have been addressed by different disciplines such as physiology, psychology, cognitive science and musicology. We present a support vector regression (SVR) based music emotion recognition system. The recognition process consists of three steps:...

2014
Alexandros Lazaridis Pierre-Edouard Honnet Philip N. Garner

In this paper we investigate external phone duration models (PDMs) for improving the quality of synthetic speech in hidden Markov model (HMM)-based speech synthesis. Support Vector Regression (SVR) and Multilayer Perceptron (MLP) were used for this task. SVR and MLP PDMs were compared with the explicit duration modelling of hidden semi-Markov models (HSMMs). Experiments done on an American Engl...

Journal: :Critical Care 2007
Stijn Van Looy Thierry Verplancke Dominique Benoit Eric Hoste Georges Van Maele Filip De Turck Johan Decruyenaere

INTRODUCTION Tacrolimus is an important immunosuppressive drug for organ transplantation patients. It has a narrow therapeutic range, toxic side effects, and a blood concentration with wide intra- and interindividual variability. Hence, it is of the utmost importance to monitor tacrolimus blood concentration, thereby ensuring clinical effect and avoiding toxic side effects. Prediction models fo...

Journal: :hepatitis monthly 0
qin wu department of infectious diseases, west china hospital, sichuan university, chengdu, china cong wang department of nursing, west china hospital, sichuan university, chengdu, china en qiang chen department of infectious diseases, west china hospital, sichuan university, chengdu, china hong tang department of infectious diseases, west china hospital, sichuan university, chengdu, china zhen zhen li west china school of medicine, west china hospital, sichuan university, chengdu, china xue zhong lei department of infectious diseases, west china hospital, sichuan university, chengdu, china; department of infectious diseases, west china hospital, sichuan university, p. o. box: 610041, chengdu, china. tel: +86-2885423346, fax: +86-2885423052

context there is growing evidence that interferon lambda 4 (ifnl4) polymorphism is related to sustained virological response (svr) in hepatitis c virus (hcv) infection. we analyzed the relationship between ifnl4 (rs368234815) polymorphism and svr in dual- and triple- therapy in hcv genotype 1, 2, 3 and 4 infected asian, caucasian and african patients. conclusions favorable ifnl4 rs368234815 gen...

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