Impact of Model Scaling on Zero-Shot Retrieval Performance in Hybrid Batch Training

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 scaling model size on the zero-shot retrieval performance (nDCG@10, recall) of the hybrid batch training strategy compared to monolingual and cross-lingual baselines across different domains in the BEIR benchmark?

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