2001
DOI: 10.1007/978-0-306-47630-3
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Principles of Forecasting

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Cited by 786 publications
(32 citation statements)
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“…Combining methods include information contained in each of individual forecast. According to Armstrong (2001) the combined forecasts should be applied if several different models can be combined to obtain better forecast, there is no certainty about the future state of the object forecast, and where large forecasting error involves a high cost. By combining forecasters should able to reduce inconsistency in estimates and to cancel out biases to some extent.…”
Section: Combining Methods To Var Forecastmentioning
confidence: 99%
“…Combining methods include information contained in each of individual forecast. According to Armstrong (2001) the combined forecasts should be applied if several different models can be combined to obtain better forecast, there is no certainty about the future state of the object forecast, and where large forecasting error involves a high cost. By combining forecasters should able to reduce inconsistency in estimates and to cancel out biases to some extent.…”
Section: Combining Methods To Var Forecastmentioning
confidence: 99%
“…O ajuste sem contexto pode ser usado como uma alternativa quando o especialista sente que a previsão está imprecisa, apesar de ele não conseguir associar nenhuma informação contextual com a série. O ajuste sem contexto está baseado na intuição e, para Armstrong (2001), na compreensão imediata de um assunto sem o uso de qualquer processo de raciocínio. O ajuste contextual ocorre quando informações contextuais estão disponíveis e o especialista ajusta a previsão inicial para incorporar os efeitos da informação extra.…”
Section: Métodos De Integração De Previsões De Demandaunclassified
“…Utilizando regras condicionais if-then, determinam-se os pesos dos métodos simples de previsão. As características do ambiente são identificadas na parte condicional (if) das regras e os pesos são ajustados de acordo com as características da série assumidas anteriormente pelo especialista (Armstrong, 2001).…”
Section: Métodos De Integração De Previsões De Demandaunclassified
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“…Furthermore, numerous facts demonstrate that a price change cannot be predicted based on the historical time series of price changes over the past periods (Mantegna & Stanley 2000); there may be several-fold deviation between the predicted prices and the actual ones for all the types of raw materials, stock prices, and currency exchange rates (Mirkin 2014). Expert evaluations, which are inevitably subjective, are used when the data on predicting relevant events over the past periods are either unavailable or insufficient for the analysis (Armstrong 2001, Green 2012, Hanke et al 2001). In many studies, when assessing the probabilities of future events, the researchers build regression models (Haan & Sinha 1999), describe the events as Markov random processes (Boer et al 2007), or assume a priori that a random phenomenon under study obeys a certain law of probability distribution (typically, the normal probability distribution) , Mohler 2013, Riley 2012).…”
Section: Introductionmentioning
confidence: 99%