Hybrid Batch Training for Zero-Shot Cross-Lingual Legal Document 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: How does the hybrid batch training method impact zero-shot cross-lingual retrieval performance on legal documents when evaluated using MRR and recall@k compared to multilingual models fine-tuned on general-domain data?

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