specific method · filed under post-training
Test-difficulty-driven code reward
Uses test difficulty to shape code-task rewards and address sparse rewards on challenging problems.
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How sources treat it
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used 1
Documented in
Evidence
1 span quoted from the sources, strongest treatment first.
To mitigate the sparse reward issue for challenging code problems, we introduce a test difficulty driven code reward.
usedtraining objectivein MiMo-7B-RLXiaomi
Filed alongside
Other methods under post-training :: reward modelling.
Generative Reward ModelGroupwise Agentic GradingGroupwise Reward SynthesisAdversarial screeningLength-adjusted RL rewardVerifier cross-checkingAbstention-aware reward for factual QAAgentic Generative Reward ModelBehavior rubricsBinary task verifierBinary terminal-verifier rewardCollaboration bonusDeterministic chain of checkersDirect RL optimization of a generative reward modelFive-dimension comparative grading of passing patchesHack-agent screeningHybrid reward systemLanguage consistency rewardMonitoring-only penalty strategyMulti-level reward formulationMultiplicative reward synthesisNegative checks for unintended side effectsOutcome Reward ModelPer-token tool-error reward shaping