Threshold variable selection by wavelets
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Wai-Cheung Ip; Heung Wong; Yuan Li; Zhongjie Xie
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Article
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1999
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Elsevier Science
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English
β 204 KB
Wavelets are applied to identify the time delay and thresholds in open-loop threshold autoregressive models. Based on Truong and Stone's lemma, the empirical wavelet coe cients of the data are deΓΏned. The time delay and thresholds are detected and then estimated by checking the variation of the empi