Model Size Scaling and Robustness to Misspellings in Dual-Encoder Architectures on TriviaQA and Natural Questions

Dense retrieval is becoming one of the standard approaches for document and passage ranking. The dual-encoder architecture is widely adopted for scoring question-passage pairs due to its efficiency and high performance. Typically, dense retrieval models are evaluated on clean and curated datasets. However, when deployed in real-life applications, these models encounter noisy user-generated text. That said, the performance of state-of-the-art dense retrievers can substantially deteriorate when exposed to noisy text. In this work, we study the robustness of dense retrievers against typos in the

Research goal: To what extent does scaling the model size (e.g., comparing small, base, and large dual-encoder architectures) affect robustness to misspellings, as measured by recall@k on TriviaQA and Natural Questions?

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