Science Journal of Applied Mathematics and Statistics

Volume 4, Issue 3, June 2016

  • Comparative Study of Backpropagation Algorithms in Forecasting Volatility of Crude Oil Price in Nigeria

    S. Suleiman, S. U. Gulumbe, B. K. Asare, M. Abubakar

    Issue: Volume 4, Issue 3, June 2016
    Pages: 88-96
    Received: 5 April 2016
    Accepted: 19 April 2016
    Published: 7 May 2016
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    Abstract: This paper explores the application of artificial neural network in volatility forecasting. A recurrent neural network has been integrated in to GARCH model to form the hybrid model called GARCH-Neural model. The emphasis of the research is to investigate the performance of the variants of Backpropagation algorithms in training the proposed GARCH-n... Show More
  • Filtering Analysis of Navigation Data Processing for Personnel Positioning System

    Lianhong Ding, Hongqing Sang, Juntao Li

    Issue: Volume 4, Issue 3, June 2016
    Pages: 97-100
    Received: 18 April 2016
    Accepted: 28 April 2016
    Published: 13 May 2016
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    Abstract: Ultra wideband technology is a more precise indoor positioning technology. But the UWB positioning output would be unstable if the signal from base station were blocked. The low cost inertial positioning is a method to make up a method for indoor navigation. However, the positioning error will accumulate quickly due to the low cost inertial measure... Show More
  • Short-Term Forecasting of Nigeria Inflation Rates Using Seasonal ARIMA Model

    Ekpenyong Emmanuel John, Udoudo Unyime Patrick

    Issue: Volume 4, Issue 3, June 2016
    Pages: 101-107
    Received: 29 March 2016
    Accepted: 29 April 2016
    Published: 25 May 2016
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    Abstract: This paper considers the analyses and forecasting of the monthly All-items (Year-on-Year change) Inflation Rates in Nigeria. The data used for this study are monthly All-items Inflation rates from 2000 to 2015 collected from the Central Bank of Nigeria. Analyses reveal that the Inflation rates of Nigeria are seasonal and follow a seasonal ARIMA Mod... Show More
  • Research on Location Problem of Electric Vehicle Charging Stations

    Zhenping Li, Yulei Zhang

    Issue: Volume 4, Issue 3, June 2016
    Pages: 108-114
    Received: 14 May 2016
    Accepted: 25 May 2016
    Published: 7 June 2016
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    Abstract: This paper studies the location problem of electric vehicle charging station in the case that electric vehicles are used as commuter tools. Firstly, according to the length of the commuter road, the number of electric vehicles which would be used as commuter tools on the road, candidate charging stations and the maximum mileage of electric vehicles... Show More
  • Estimators Proposed by Geometric Mean, Harmonic Mean and Quadratic Mean

    Vedat Sağlam, Tolga Zaman, Erdinç Yücesoy, Murat Sağır

    Issue: Volume 4, Issue 3, June 2016
    Pages: 115-118
    Received: 16 May 2016
    Accepted: 26 May 2016
    Published: 7 June 2016
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    Abstract: In the studies in literature up to date arithmetic population mean of auxiliary variable is used to obtain the proportional estimators. In this paper geometric mean, harmonic mean and quadratic mean is used as well as arithmetic population mean. Using geometric mean, harmonic mean and quadratic mean do not affect the variance of ratio estimator ().... Show More