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Du-Seong Chang

13 accepted papers

2025

Evaluating Visual and Cultural Interpretation: The K-Viscuit Benchmark with Human-VLM Collaboration

ACL 2025long

To create culturally inclusive vision-language models (VLMs), developing a benchmark that tests their ability to address culturally relevant questions is essential. Existing approaches typically rely on human annotators, making the process labor-intensive and creating a cognitive burden in generatin…

Cited by 0SourcePDFScholar
2025

RILQ: Rank-Insensitive LoRA-Based Quantization Error Compensation for Boosting 2-Bit Large Language Model Accuracy

AAAI 2025technical

Low-rank adaptation (LoRA) has become the dominant method for parameter-efficient LLM fine-tuning, with LoRA-based quantization error compensation (LQEC) emerging as a powerful tool for recovering accuracy in compressed LLMs. However, LQEC has underperformed in sub-4-bit scenarios, with no prior inv…

2024

BI-MDRG: Bridging Image History in Multimodal Dialogue Response Generation

ECCV 2024poster

"Multimodal Dialogue Response Generation (MDRG) is a recently proposed task where the model needs to generate responses in texts, images, or a blend of both based on the dialogue context. Due to the lack of a large-scale dataset specifically for this task and the benefits of leveraging powerful pre-…

2024

Guidance-Based Prompt Data Augmentation in Specialized Domains for Named Entity Recognition

ACL 2024short

While the abundance of rich and vast datasets across numerous fields has facilitated the advancement of natural language processing, sectors in need of specialized data types continue to struggle with the challenge of finding quality data. Our study introduces a novel guidance data augmentation tech…

Cited by 1SourcePDFScholar
2024

How Do Large Language Models Acquire Factual Knowledge During Pretraining?

NeurIPS 2024poster

Despite the recent observation that large language models (LLMs) can store substantial factual knowledge, there is a limited understanding of the mechanisms of how they acquire factual knowledge through pretraining. This work addresses this gap by studying how LLMs acquire factual knowledge during p…

2024

Improving Conversational Abilities of Quantized Large Language Models via Direct Preference Alignment

ACL 2024long

The rapid advancement of large language models (LLMs) has facilitated their transformation into conversational chatbots that can grasp contextual nuances and generate pertinent sentences, closely mirroring human values through advanced techniques such as instruction tuning and reinforcement learning…

Cited by 3SourcePDFScholar
2024

PSYDIAL: Personality-based Synthetic Dialogue Generation Using Large Language Models

COLING 2024main

We present a novel end-to-end personality-based synthetic dialogue data generation pipeline, specifically designed to elicit responses from large language models via prompting. We design the prompts to generate more human-like dialogues considering real-world scenarios when users engage with chatbot…

2024

Structure-Aware Multimodal Sequential Learning for Visual Dialog

AAAI 2024technical

With the ability to collect vast amounts of image and natural language data from the web, there has been a remarkable advancement in Large-scale Language Models (LLMs). This progress has led to the emergence of chatbots and dialogue systems capable of fluent conversations with humans. As the variety…

Cited by 1SourcePDFScholar
2024

Towards Fast Multilingual LLM Inference: Speculative Decoding and Specialized Drafters

EMNLP 2024main

Large language models (LLMs) have revolutionized natural language processing and broadened their applicability across diverse commercial applications. However, the deployment of these models is constrained by high inference time in multilingual settings. To mitigate this challenge, this paper explor…

2024

Translation Deserves Better: Analyzing Translation Artifacts in Cross-lingual Visual Question Answering

ACL 2024findings

Building a reliable visual question answering (VQA) system across different languages is a challenging problem, primarily due to the lack of abundant samples for training. To address this challenge, recent studies have employed machine translation systems for the cross-lingual VQA task. This involve…

2023

NASH: A Simple Unified Framework of Structured Pruning for Accelerating Encoder-Decoder Language Models

EMNLP 2023long findings

Structured pruning methods have proven effective in reducing the model size and accelerating inference speed in various network architectures such as Transformers. Despite the versatility of encoder-decoder models in numerous NLP tasks, the structured pruning methods on such models are relatively le…

Cited by 0SourcecodeScholar
2023

Token-Scaled Logit Distillation for Ternary Weight Generative Language Models

NeurIPS 2023poster

Generative Language Models (GLMs) have shown impressive performance in tasks such as text generation, understanding, and reasoning. However, the large model size poses challenges for practical deployment. To solve this problem, Quantization-Aware Training (QAT) has become increasingly popular. Howev…

2022

Understanding and Improving Knowledge Distillation for Quantization Aware Training of Large Transformer Encoders

EMNLP 2022main

Knowledge distillation (KD) has been a ubiquitous method for model compression to strengthen the capability of a lightweight model with the transferred knowledge from the teacher. In particular, KD has been employed in quantization-aware training (QAT) of Transformer encoders like BERT to improve th…