Open umiuri1105 opened 2 weeks ago
Hello thank you for your interest in our work.
Matcha-TTS, uses the conditional Optimal Transport introduced in Flow Matching for Generative Modeling . In section 4 Example II, the equation of the flow is described in more detail with a disclaimer.
Lastly, we note that although the conditional flow is optimal, this by no means imply that the marginal VF is an optimal transport solution. Nevertheless, we expect the marginal vector field to remain relatively simple.
We use the same definition and formulation.
I am sorry, I am not familiar with I-CFM, could you please provide a reference to it so I can take a look at it?
Thank you for your response. I-CFM is explained in Improving and Generalizing Flow-Based Generative Models with Minibatch Optimal Transport. OT-CFM is also discussed in this paper. When implementing OT-CFM, is it necessary to use the library "pot"?
I-CFM is explained in Improving and Generalizing Flow-Based Generative Models with Minibatch Optimal Transport.
Ah ofcourse I have read this article, I just couldn't recall that they call it I-CFM. I think they have their implementation open sourced. And they seem to be using pot and from what it looks, it just provides a sample plan off the shelf.
Hi! I thought the same thing as @umiuri1105 . I could only find CFM too. (https://github.com/shivammehta25/Matcha-TTS/blob/main/matcha/models/components/flow_matching.py#L87) In which file is optimal-transport conditional flow matching (OT-CFM) implemented?
Hello,
What is referred to as OT-CFM here is the conditional OT-CFM introduced in Flow Matching for Generative Modelling, not the marginal one which was later introduced in Tong et al. where they called I-CFM.
Hello, and I apologize for my delayed response. I have three questions:
To my understanding
Thank you for your great work. I have a question about Flow Matching. The Matcha-TTS paper states that OT-CFM is used, but where is the OT-CFM program implemented in this GitHub program? It looks like the program implements general CFM (I-CFM).