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Piyush Kumar

3 accepted papers

2024

Debiasing Text Safety Classifiers through a Fairness-Aware Ensemble

EMNLP 2024industry

Increasing use of large language models (LLMs) demand performant guardrails to ensure the safety of inputs and outputs of LLMs. When these safeguards are trained on imbalanced data, they can learn the societal biases. We present a light-weight, post-processing method for mitigating counterfactual fa…

2024

Malicious Path Manipulations via Exploitation of Representation Vulnerabilities of Vision-Language Navigation Systems

IROS 2024

Building on the unprecedented capabilities of large language models for command understanding and zero-shot recognition of multi-modal vision-language transformers, visual language navigation (VLN) has emerged as an effective way to address multiple fundamental challenges toward a natural language i

Cited by 14SourceScholar
2023

On Regularization and Inference with Label Constraints

ICML 2023poster

Prior knowledge and symbolic rules in machine learning are often expressed in the form of label constraints, especially in structured prediction problems. In this work, we compare two common strategies for encoding label constraints in a machine learning pipeline, *regularization with constraints* a…

Cited by 7SourcePDFScholar