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Roberts, Raffel and Shazeer: closed-book question answering with T5

Contribution grade

Efficient language and sequence modeling · Human-designed research method or resource

Reference score45,000Provisional editorial estimate of this exact contribution; its grade is assessed separately.

What changed

Measured answering open-domain questions from fine-tuned model parameters without supplying a retrieved context, including scaling with model size.

Scientific scope

Measured answering open-domain questions from fine-tuned model parameters without supplying a retrieved context, including scaling with model size. Does not invent T5 or establish factual completeness, freshness or reliable reasoning. Closed-book describes inference inputs, not absence of pre-training data.

Evidence

The linked original sources describe the stated contribution and its evidence limits. WRS has not independently rerun the experiments or certified a proof. Does not invent T5 or establish factual completeness, freshness or reliable reasoning. Closed-book describes inference inputs, not absence of pre-training data.

Contributors

Provisional WRS assessment, edition 2026-10-16.1. Independent expert calibration is pending. This grade does not certify correctness or assign ownership.

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