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Retrace: clipped off-policy return traces with operator guarantees

Combined bounded importance-ratio traces with corrected multi-step Bellman returns, retaining long near-on-policy returns while controlling off-policy trace growth.

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Combined bounded importance-ratio traces with corrected multi-step Bellman returns, retaining long near-on-policy returns while controlling off-policy trace growth.

Source-linked catalogue note. A detailed explanatory guide has not yet been prepared for this entry.

Scientific scope

Safe refers to off-policy value-operator convergence, not real-world deployment safety. Expected fixed-policy contraction uses nonnegative trace coefficients bounded by target/behavior likelihood ratios; control and stochastic convergence require additional greedy-policy, initialization, coverage and learning conditions. No guarantee for arbitrary neural approximators or absent exploration.

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People and systems

Rémi Munos; Tom Stepleton; Anna Harutyunyan; Marc G. Bellemare

Source-listed authors or explicitly credited technical contributors for the cited versions. Family entries retain source-specific attribution; a combined list is not one original-paper byline or equal individual work. Names alone do not establish resolved identities.

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English catalogue narrative

Retrace: clipped off-policy return traces with operator guarantees

Combined bounded importance-ratio traces with corrected multi-step Bellman returns, retaining long near-on-policy returns while controlling off-policy trace growth.

Scientific scope

Safe refers to off-policy value-operator convergence, not real-world deployment safety. Expected fixed-policy contraction uses nonnegative trace coefficients bounded by target/behavior likelihood ratios; control and stochastic convergence require additional greedy-policy, initialization, coverage and learning conditions. No guarantee for arbitrary neural approximators or absent exploration.

Reading status

This is a source-linked WRS catalogue note. A full explanatory guide and independent scientific reconstruction have not been completed for this entry. Read the identified original work for its complete narrative and arguments.

People and systems

Rémi Munos; Tom Stepleton; Anna Harutyunyan; Marc G. Bellemare

Source-listed authors or explicitly credited technical contributors for the cited versions. Family entries retain source-specific attribution; a combined list is not one original-paper byline or equal individual work. Names alone do not establish resolved identities.

Original sources