Mapping by the Parameter_retriever between the model parameters and the latent space representations (64 dimensions) of 2000 test spectra at the second round of inference. In each panel, the true parameter values are shown on the x-axis, and the predicted values on the y-axis. This result indicates that the autoencoder has successfully captured the relevant information from the simulated spectra. Moreover, the strong alignment between predicted and true values confirms that the observation is sensitive to all five model parameters. The target observation is marked with a square symbol for reference.