Many forecasting models have been proposed to improve forecasting accuracy. Recently, Chen at al. model which incorporates three concepts of Fibonacci sequence, framework of Song and Chissom's model and weighted method of Yu's model has been proposed as a method to improve forecasting accuracy. However, the issue on lengths of intervals has not been investigated by Chen et al. despite Huarng ad...

Recently, Hsiang and Shih proposed a secure dynamic ID based remote user authentication scheme for multi-server environment. In this paper, we show that Hsiang and Shih's scheme is still vulnerable to off-line password guessing attacks, impersonation attacks and server spoofing attacks. And it cannot resist agai nst extracting secr et data by in tercepting th e authentication m essage. Chen , H...

Shepp’s urn model is a useful tool for analyzing the stopping-rule problems in economics and finance. In [R.W. Chen, A. Zame, C.T. Lin, H. Wu, A random version of Shepp’s urn scheme, SIAM J. Discrete Math. 19 (1) (2005) 149–164], Chen et al. considered a random version of Shepp’s urn scheme and showed that a simple drawing policy (called “the k in the hole policy”) can asymptotically maximize t...

References 1. Chen F, Sun D, Guo Y, GuoW, Ding Z, Li P, et al. (2015) Spatiotemporal Scan and Age-Period-Cohort Analysis of Hepatitis C Virus in Henan, China: 2005–2012. PLoS ONE 10(6): e0129746. doi: 10.1371/ journal.pone.0129746 PMID: 26075599 2. Chen F, Sun D, Guo Y, GuoW, Ding Z, Li P, et al. (2015) Correction: Spatiotemporal Scan and AgePeriod-Cohort Analysis of Hepatitis C Virus in Henan,...

4. Cook AL, Kishnani PS, Carboni MP, Kanter RJ, Chen YT, Ansong AK, et al. Ambulatory electrocardiogram analysis in infants treated with recombinant human acid alpha-glucosidase enzyme replacement therapy for Pompe disease. Genet Med. 2006;8:313–7. 5. Ansong AK, Li JS, Nozik-Grayck E, Ing R, Kravitz RM, Idriss SF, et al. Electrocardiographic response to enzyme replacement therapy for Pompe dise...

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Digital Signatures play a crucial role today as it ensures authentication, integrity and non-repudiation of a digital message. Many researches are ongoing based on elliptic curve cryptography due to its significant high performance. In this paper we propose an efficient and secure digital multi-signature protocol based on elliptic curve cryptography. The proposed protocol is efficient with redu...

Batteries In their Research Article on page 26622, Xin Wang, Zhongwei Chen et al. report the engineering of oversaturated Fe-N5 catalytic sites for durable Li-S batteries.