Talk:Hilbert–Huang transform

The first citation referenced under Sesimology section [Huang et al 2001] seems incorrect.

It refers to this paper:

Huang, Q., Sobolev, G., Nagao, T., 2001. Characteristics of the seismic quiescence and activation phases before the M=7.2 Kobe earthquake, 17 January 1995, Tectonophysics 337, 99–116

which does of course involve seismology, but doesn't invlove Norden Huang nor the HHT

Was this the article that was intended:

Hilbert-Huang Transform Analysis of Dynamic and Earthquake Motion Recordings Ray Ruichong Zhang, M.ASCE1; Shuo Ma2; Erdal Safak, M.ASCE3; and Stephen Hartzell4

If so, "Huang et al" would be incorrect, and so would the date.

137.229.184.15 (talk) 23:40, 22 April 2010 (UTC)Dane Ketner da28ne50ket495ner012@gm495ail.c34om (please strip numbers before e-mailing)

EMD is to break down a signal into components which are still in the time domain. Such breaking down of a signal can also be done by using: (1) a series of moving averages together with sieving at each step; or (2) a series of low-pass filters and again together with sieving at each step. What are the advantages of EMD over these two well-established methods? What are the physical meanings of Huang's IMF? 70.51.225.185 (talk) 21:34, 13 August 2015 (UTC)

Original research?
This article appears to have serious bias and / or original research issues. A good amount of the top contributors (see Xtools, in particular users Shihyingwu, Imjanetycs, and Yongxianghuang) have very little other Wikipedia activity, and their contributions show very particular domain-specific knowledge; in particular, they pack the ‘Applications’ section full with specific papers, which reads more like an article bibliography than an excerpt from an encyclopaedia.

Some paragraphs are clearly unaccessible to anyone but a specialised researcher in the field, while others are essentially just lists of papers. The table at the end is particularly partisan and unsubstantiated, it reads like pseudo-comparative product advertising.

This article should undergo extensive revision to make it accessible and to match format of other articles (compare e.g. Hilbert Transform).

Maximilian Aigner (talk) 15:52, 11 June 2017 (UTC)


 * In particular, the cleanup tags, , and perhaps  seem appropriate. Maximilian Aigner (talk) 15:59, 11 June 2017 (UTC)


 * The article seems to be a copy of the corresponding scholarpedia entry. NeuroSopheR (talk) 23:16, 30 November 2018 (UTC)

The sifting process is not explained. What does "After the first round of sifting, a crest may become a local maximum." mean? DavidRideout (talk) 14:43, 23 April 2021 (UTC)

And why the "1" in h1k? It does not appear in the next section "Stoppage criteria of the sifting process". DavidRideout (talk) 16:35, 24 April 2021 (UTC)

What is the definition of the symbols used in "Hilbert spectral analysis"? DavidRideout (talk) 22:55, 26 April 2021 (UTC)

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