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Chun-Sung Ferng

4 accepted papers

2025

Sufficient Context: A New Lens on Retrieval Augmented Generation Systems

ICLR 2025poster

Augmenting LLMs with context leads to improved performance across many applications. Despite much research on Retrieval Augmented Generation (RAG) systems, an open question is whether errors arise because LLMs fail to utilize the context from retrieval or the context itself is insufficient to answer…

2024

SLED: Self Logits Evolution Decoding for Improving Factuality in Large Language Models

NeurIPS 2024poster

Large language models (LLMs) have demonstrated remarkable capabilities, but their outputs can sometimes be unreliable or factually incorrect. To address this, we introduce Self Logits Evolution Decoding (SLED), a novel decoding framework that enhances the truthfulness of LLMs without relying on exte…

2021

A Simple and Effective Positional Encoding for Transformers

EMNLP 2021main

Transformer models are permutation equivariant. To supply the order and type information of the input tokens, position and segment embeddings are usually added to the input. Recent works proposed variations of positional encodings with relative position encodings achieving better performance. Our an…

Cited by 83SourcePDFScholar
2021

Adversarial Robustness Across Representation Spaces

CVPR 2021poster

Adversarial robustness corresponds to the susceptibility of deep neural networks to imperceptible perturbations made at test time. In the context of image tasks, many algorithms have been proposed to make neural networks robust to adversarial perturbations made to the input pixels. These perturbatio…

Cited by 14PDFScholar