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alexhernandezgarcia committed Jun 12, 2024
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Expand Up @@ -5,7 +5,7 @@ gflownet is library built upon [PyTorch](https://pytorch.org/) to easily train a
In a nutshell, GFlowNets can be regarded as a generative model designed to sample objects $x \in \mathcal{X}$ proportionally to a reward function $R(x)$. This results in the potential of sampling diverse objects with high rewards. For example, given the reward landscape depicted below, defined over a two-dimensional space, a well-trained GFlowNet will be able to sample from the four high-reward corners with high probability.

<p align="center">
<img style="max-width: 200px" src="docs/images/reward_landscape.png"/>
<img style="max-width: 50px" src="docs/images/reward_landscape.png"/>
</p>

GFlowNets rely on the principle of **compositionality** to generate samples. A meaningful decomposition of samples $x$ into multiple intermediate states $s_0\rightarrow s_1 \rightarrow \dots \rightarrow x$ can yield generalisable patterns. These patterns can then be learned by neural networks trained to model the value of transitions $F_{\theta}(s_t \rightarrow s_{t+1})$.
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