Monolingual-to-Cross-Lingual Sample Ratio Effects on Zero-Shot Retrieval Performance in Multilingual Benchmarks

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: How does varying the monolingual-to-cross-lingual sample ratio in hybrid batch training affect zero-shot retrieval performance on extended multilingual benchmarks like XLM-R and M3IR compared to traditional single-task optimization?

Autonomous synthesis report generated by Assignee Research. Tribunal consensus score: 8.3/10.