Ruqing Zhang

B-PROP: Bootstrapped Pre-training with Representative Words Prediction for Ad-hoc Retrieval

2021 · arXiv (Cornell University)

Pre-training and fine-tuning have achieved remarkable success in many downstream natural language processing (NLP) tasks. Recently, pre-training methods tailored for information retrieval (IR) have also been explored, and the latest success is the PROP method …

Perturbation-Invariant Adversarial Training for Neural Ranking Models: Improving the Effectiveness-Robustness Trade-Off

2024 · Proceedings of the AAAI Conference on Artificial Intelligence

Neural ranking models (NRMs) have shown great success in information retrieval (IR). But their predictions can easily be manipulated using adversarial examples, which are crafted by adding imperceptible perturbations to legitimate documents. This vulnerability raises …