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TAS-Balanced: topic-aware batches and margin-balanced retriever teaching

Clustered training queries once, sampled topically related batches and balanced positive/negative passage pairs by teacher-score margins, combining pairwise cross-encoder and in-batch ColBERT teacher signals.

What is recorded here?

Clustered training queries once, sampled topically related batches and balanced positive/negative passage pairs by teacher-score margins, combining pairwise cross-encoder and in-batch ColBERT teacher signals.

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

Scientific scope

Teacher inference, reused teacher scores and one-time query clustering have costs even when omitted from the student loop. Single-GPU timing and retrieval latency use the stated hardware/index configuration. Balanced teacher margins do not certify relevance labels or eliminate false negatives.

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People and systems

Sebastian Hofstätter; Sheng-Chieh Lin; Jheng-Hong Yang; Jimmy Lin; Allan Hanbury

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English catalogue narrative

TAS-Balanced: topic-aware batches and margin-balanced retriever teaching

Clustered training queries once, sampled topically related batches and balanced positive/negative passage pairs by teacher-score margins, combining pairwise cross-encoder and in-batch ColBERT teacher signals.

Scientific scope

Teacher inference, reused teacher scores and one-time query clustering have costs even when omitted from the student loop. Single-GPU timing and retrieval latency use the stated hardware/index configuration. Balanced teacher margins do not certify relevance labels or eliminate false negatives.

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

Sebastian Hofstätter; Sheng-Chieh Lin; Jheng-Hong Yang; Jimmy Lin; Allan Hanbury

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