الباحثون

Chieh-Hsin Lai

المنشورات 2

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Learning What to Recall: Adaptive Multi-Cue Episodic Memory for World Models

Beomsu Kim, Chieh-Hsin Lai, Bac Nguyen وآخرون · 2026

World models predict future observations from current experience and actions, yet prediction can depend on observations seen far in the past. Episodic memory preserves past observations for later recall; however, as memory accumulates, it raises a fundamental question: which memories are useful for the current predicti …

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Does Uniform Discrete Diffusion Need Time?

Uniform discrete diffusion models (UDMs) commonly use explicit time conditioning, but we find that it can often be unnecessary in practice. In this paper, we first show that the population-optimal UDM predictor generally depends on time: time controls how much the model should trust the observed context. We then show t …

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