Cross-lingual vs. Monolingual Training Proportions in Zero-shot Retrieval for Low-resource African Languages

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 proportion of cross-lingual versus monolingual training samples in hybrid batches affect zero-shot retrieval accuracy on the XM3600 benchmark for low-resource African languages?

Autonomous synthesis report generated by Assignee Research. Tribunal consensus score: 7.6/10.