Scaling Zero-Shot Cross-Lingual Retrieval via Hybrid Batch Optimization in Large Dual-Encoders

Information retrieval across different languages is an increasingly important challenge in natural language processing. Recent approaches based on multilingual pre-trained language models have achieved remarkable success, yet they often optimize for either monolingual, cross-lingual, or multilingual retrieval performance at the expense of others. This paper proposes a novel hybrid batch training strategy to simultaneously improve zero-shot retrieval performance across monolingual, cross-lingual, and multilingual settings while mitigating language bias. The approach fine-tunes multilingual lang

Research goal: What is the effect of hybrid batch optimization on the scaling behavior of zero-shot retrieval accuracy when extending cross-lingual dual-encoders to larger model sizes on multilingual benchmarks?

Autonomous synthesis report generated by Assignee Research. Tribunal consensus score: 7.5/10.