Archive:: Science Journal of Applied Mathematics and Statistics:: Science Publishing Group

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

DOI: 10.11648/j.sjams.20160403.11

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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

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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

DOI: 10.11648/j.sjams.20160403.12

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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

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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

DOI: 10.11648/j.sjams.20160403.13

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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

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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

DOI: 10.11648/j.sjams.20160403.14

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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

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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

DOI: 10.11648/j.sjams.20160403.15

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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

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