dynamic time warping types

hello.Im working on DTW of signal syncrinization. but i could find only dtw.m file exchane on matlab. how can i find different types of dtw (dtw1, dtw2, dtw3) matlab codes?

[Yash]

There isn't a universally defined set of functions named dtw1, dtw2, or dtw3 in MATLAB, but different variations may exist.

You can take help from MATLAB file exchange.

https://www.mathworks.com/matlabcentral/fileexchange

In the search bar, type "DTW" or "Dynamic Time Warping" to search for relevant files.

Answer 1

[Avni Agrawal]

Hi @tala,

I understand that you are looking for DTW Technique. Dynamic Time Warping (DTW) is a popular technique for aligning time series data, and there are often variations or custom implementations depending on specific needs. If you're looking for different types of DTW implementations in MATLAB (like `dtw1`, `dtw2`, `dtw3`), you might consider the following approaches:

1. MATLAB File Exchange

The MATLAB File Exchange is a rich resource for user-contributed code. You can search for DTW-related submissions by using keywords like "DTW", "Dynamic Time Warping", or specific variations you are interested in. Here’s how you can explore it:

- Go to MATLAB File Exchange

- Use the search bar to find "DTW" or specific types like "DTW variations".

- Look at the descriptions and user reviews to find implementations that fit your needs.

2. Custom Implementations

If the standard `dtw.m` file does not meet your requirements, consider modifying it or implementing your own version. Here are some variations you might consider:

- Weighted DTW: Incorporate weights to emphasize certain parts of the time series.

- Constrained DTW: Use constraints like Sakoe-Chiba Band or Itakura Parallelogram to limit the warping path.

- Derivative DTW: Use derivatives of the time series to focus on the shape rather than the absolute values.

3. MATLAB Toolboxes

Check if there are any MATLAB toolboxes that offer additional DTW functionalities. Some toolboxes, like the Signal Processing Toolbox or specific third-party toolboxes, might include advanced or specialized DTW functions.

4. Research Papers and Online Resources

Academic papers and online resources might describe specific DTW variations and sometimes provide pseudocode or MATLAB code snippets. Websites like ResearchGate, Google Scholar, or arXiv can be good starting points.

5. Community Forums and GitHub

- MATLAB Central: Engage with the MATLAB community by asking questions or looking for discussions related to DTW variations.

- GitHub: Search for repositories that implement DTW in MATLAB. Many researchers and developers share their code on GitHub, which can be a valuable resource.

Example Search on GitHub

You can search GitHub using queries like:

MATLAB DTW

MATLAB Dynamic Time Warping variations

I hope this helps!