Hybrid Batch Training Ratio Effects on BEIR Multilingual Retrieval Performance

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 impact of varying the ratio of monolingual to cross-lingual data in hybrid batch training on the downstream evaluation scores (e.g., NDCG@10) for multilingual retrieval in the BEIR benchmark?

Autonomous synthesis report generated by Assignee Research. Tribunal consensus score: 8.2/10.