Bhargavi Paranjape Profile picture
PhD student at @uwcse
Jan 31, 2023 6 tweets 3 min read
✨ New Paper ✨ on robust optimization to mitigate unspecified spurious features, accepted to #ICLR2023.
We present AGRO, a novel min-max optimization method that jointly finds coherent error-prone groups in training data and minimizes worst expected loss over them.
🧵🔽 1/6 ImageImage 2/ Human evaluation of ARGO groups in popular benchmark datasets shows that they contain well-defined, yet ✨ previously unstudied ✨ spurious correlations. For e.g., blondes wearing hats or sunglasses in CelebA and MNLI entailment examples with antonyms. More examples in paper. Image
Oct 15, 2021 6 tweets 3 min read
Excited to share my internship work at Google Research with @iftenney @MatthewRLamm on Retrieval-guided generation of *semantically diverse* counterfactuals for question answering tasks like Natural Questions.
Paper: arxiv.org/abs/2110.07596
[1/n] Automatically generating counterfactuals for QA poses unique challenges: need for world knowledge, semantic diversity, and answerability.
[2/n]