Code-Switching Ratio Variations in Hybrid Batch Training and Zero-Shot Retrieval Performance in Multilingual Dense Retrievers

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 code-switching ratio during hybrid batch training on the zero-shot retrieval accuracy of multilingual dense retrievers across diverse language families?

Autonomous synthesis report generated by Assignee Research. Tribunal consensus score: 8.5/10.