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Feature Selection in World Models: A Spectral View
Which features do world-model objectives preserve for planning, and which do they discard? A first-principles comparison of five objectives in a shared linear-Gaussian setting.
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Joint-Embedding vs Reconstruction: When Should You Use Each?
A theoretical analysis revealing when joint-embedding methods outperform reconstruction-based SSL, and vice versa.
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Inverse optimal transport does not require unrolling
A note on the equivalence between inverse OT and minimizing the Monge gap.