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In order to structure the complex nature of the significant wave height time series, Autoregressive Integrated Moving Average model of order (p,1,0) was applied. Each step which is essential for precise modeling is covered comprehensively. First, the stationarity of given time series of SWH with its 1st order difference were checked. Akaike's Information Criteria and Bayesian Information Criteria...
The story of "Walmart Nappies and Beer" inspires researches to find the potential relationship between a focal product (or item/SKU) and some other products (we call supplementary products here) in a supply chain. How to reflect the dependent demand relationship between a supplementary product and a focal product is significant for supply chain management and operations management. This...
The aim of this work is to analyze factors influencing electricity consumption in Japan using regression analysis. Every season regression models are developed for forecasting and determining elasticity coefficient associated with climatic conditions. As explanation variables, we use temperature, relative humidity and other factors such us holidays. Then, several statistical tests, for instance, t-test,...
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