Search Results for author: Yixin Wan

Found 11 papers, 5 papers with code

Using Item Response Theory to Measure Gender and Racial Bias of a BERT-based Automated English Speech Assessment System

no code implementations NAACL (BEA) 2022 Alexander Kwako, Yixin Wan, Jieyu Zhao, Kai-Wei Chang, Li Cai, Mark Hansen

This study addresses the need to examine potential biases of transformer-based models in the context of automated English speech assessment.

The Male CEO and the Female Assistant: Probing Gender Biases in Text-To-Image Models Through Paired Stereotype Test

no code implementations16 Feb 2024 Yixin Wan, Kai-Wei Chang

Recent large-scale Text-To-Image (T2I) models such as DALLE-3 demonstrate great potential in new applications, but also face unprecedented fairness challenges.

Fairness Image Generation

Sequence-Level Certainty Reduces Hallucination In Knowledge-Grounded Dialogue Generation

no code implementations28 Oct 2023 Yixin Wan, Fanyou Wu, Weijie Xu, Srinivasan H. Sengamedu

We explore the correlation between the level of hallucination in model responses and two types of sequence-level certainty: probabilistic certainty and semantic certainty.

Dialogue Generation Hallucination

"Kelly is a Warm Person, Joseph is a Role Model": Gender Biases in LLM-Generated Reference Letters

1 code implementation13 Oct 2023 Yixin Wan, George Pu, Jiao Sun, Aparna Garimella, Kai-Wei Chang, Nanyun Peng

Through benchmarking evaluation on 2 popular LLMs- ChatGPT and Alpaca, we reveal significant gender biases in LLM-generated recommendation letters.

Benchmarking Fairness +1

Are Personalized Stochastic Parrots More Dangerous? Evaluating Persona Biases in Dialogue Systems

1 code implementation8 Oct 2023 Yixin Wan, Jieyu Zhao, Aman Chadha, Nanyun Peng, Kai-Wei Chang

Recent advancements in Large Language Models empower them to follow freeform instructions, including imitating generic or specific demographic personas in conversations.

Benchmarking

PIP: Parse-Instructed Prefix for Syntactically Controlled Paraphrase Generation

1 code implementation26 May 2023 Yixin Wan, Kuan-Hao Huang, Kai-Wei Chang

Existing fine-tuning methods for this task are costly as all the parameters of the model need to be updated during the training process.

Paraphrase Generation

ABC-KD: Attention-Based-Compression Knowledge Distillation for Deep Learning-Based Noise Suppression

no code implementations26 May 2023 Yixin Wan, Yuan Zhou, Xiulian Peng, Kai-Wei Chang, Yan Lu

To begin with, we are among the first to comprehensively investigate mainstream KD techniques on DNS models to resolve the two challenges.

Knowledge Distillation

TheoremQA: A Theorem-driven Question Answering dataset

1 code implementation21 May 2023 Wenhu Chen, Ming Yin, Max Ku, Pan Lu, Yixin Wan, Xueguang Ma, Jianyu Xu, Xinyi Wang, Tony Xia

We evaluate a wide spectrum of 16 large language and code models with different prompting strategies like Chain-of-Thoughts and Program-of-Thoughts.

Math Question Answering

Improving the Adversarial Robustness of NLP Models by Information Bottleneck

1 code implementation Findings (ACL) 2022 Cenyuan Zhang, Xiang Zhou, Yixin Wan, Xiaoqing Zheng, Kai-Wei Chang, Cho-Jui Hsieh

Existing studies have demonstrated that adversarial examples can be directly attributed to the presence of non-robust features, which are highly predictive, but can be easily manipulated by adversaries to fool NLP models.

Adversarial Robustness SST-2

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