diff --git a/_posts/2024-05-07-elaborating-on-the-value-of-flow-matching-for-density-estimation.md b/_posts/2024-05-07-elaborating-on-the-value-of-flow-matching-for-density-estimation.md index ec6d4a56..955d06d0 100644 --- a/_posts/2024-05-07-elaborating-on-the-value-of-flow-matching-for-density-estimation.md +++ b/_posts/2024-05-07-elaborating-on-the-value-of-flow-matching-for-density-estimation.md @@ -76,15 +76,21 @@ distributions by transforming a simple, known distribution into a more complex one. They do so by leveraging the change of variables formula, defining a bijection from the simple distribution to the complex one. -For most of the time, the standard definition of flows, achieving the notable -results, was based on chaining several differentiable and invertible -transformations. However, these diffeomorphic transformations limit the flows in -their complexity as such have to be simple. Furthermore, this leads to trade-off -sampling speed and evaluation performance . Their continuous couterpart, Continuous Normalizing Flows (CNFs) have been held back by limitations in their simulation-based maximum likelihood training . +key="tong_improving_2023">. By utilizing Flow Matching, this limitation +has been overcome and CNFs have been shown to be a powerful tool for density +estimation. + +In the following sections, CNFs and Flow Matching are explained. Following the +explanation, the empirical results of Flow Matching are presented. Finally, the +application of Flow Matching in Simulation-based Inference is discussed, which +shall highlight their wide applicability and consistent improvement. # Continuous Normalizing Flows