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Ho-jin Choi

12 accepted papers

2026

RefineBench: Evaluating Refinement Capability in Language Models

ICLR 2026poster

Can language models (LMs) self-refine their own responses? This question is increasingly relevant as more than 10% of real-world user interactions involve refinement requests (see Appendix G). Yet prior studies have largely tested LMs on verifiable tasks such as competition math or symbolic reasonin…

Cited by 0SourceScholar
2025

MultiVerse: A Multi-Turn Conversation Benchmark for Evaluating Large Vision and Language Models

ICCV 2025poster

Vision-and-Language Models (VLMs) have shown impressive capabilities on single-turn benchmarks, yet real-world applications often demand more intricate multi-turn dialogues. Existing multi-turn datasets (e.g, MMDU, ConvBench) only partially capture the breadth and depth of conversational scenarios e…

Cited by 0SourcePDFScholar
2024

DialogCC: An Automated Pipeline for Creating High-Quality Multi-Modal Dialogue Dataset

NAACL 2024long

As sharing images in an instant message is a crucial factor, there has been active research on learning an image-text multi-modal dialogue models.However, training a well-generalized multi-modal dialogue model remains challenging due to the low quality and limited diversity of images per dialogue in…

2024

Enhancing Arguments Recognition for Financial Mathematical Reasoning over Hybrid Data

EMNLP 2024finding

Mathematical question answering over long-form documents is challenging across domains like finance or Wikipedia due to the abundance of candidate arguments within evidence, which complicates recognizing proper arguments for mathematical reasoning and poses hard to learning. In this paper, we propos…

Cited by 0SourcePDFScholar
2024

Large Language Models can Share Images, Too!

ACL 2024findings

This paper explores the image-sharing capability of Large Language Models (LLMs), such as GPT-4 and LLaMA 2, in a zero-shot setting. To facilitate a comprehensive evaluation of LLMs, we introduce the photochatplus dataset, which includes enriched annotations (ie intent, triggering sentence, image de…

2024

Stark: Social Long-Term Multi-Modal Conversation with Persona Commonsense Knowledge

EMNLP 2024finding

Humans share a wide variety of images related to their personal experiences within conversations via instant messaging tools. However, existing works focus on (1) image-sharing behavior in singular sessions, leading to limited long-term social interaction, and (2) a lack of personalized image-sharin…

2023

Road Anomaly Segmentation Based on Pixel-wise Logit Variance with Iterative Background Highlighting

ICRA 2023poster

Anomaly segmentation on the urban landscape scene is an important task in autonomous driving. This process exploits a pre-trained semantic segmentation network to estimate anomalous regions. Anomaly segmentation approaches implemented with extra requirements such as out-of-domain data, extra network…

Cited by 0SourcecodeScholar
2023

Semantic Ambiguity Detection in Sentence Classification using Task-Specific Embeddings

ACL 2023industry

Ambiguity is a major obstacle to providing services based on sentence classification. However, because of the structural limitations of the service, there may not be sufficient contextual information to resolve the ambiguity. In this situation, we focus on ambiguity detection so that service design…

Cited by 0SourcePDFScholar
2023

Shepherding Slots to Objects: Towards Stable and Robust Object-Centric Learning

CVPR 2023poster

Object-centric learning (OCL) aspires general and com- positional understanding of scenes by representing a scene as a collection of object-centric representations. OCL has also been extended to multi-view image and video datasets to apply various data-driven inductive biases by utilizing geometric…

2022

Does GPT-3 Generate Empathetic Dialogues? A Novel In-Context Example Selection Method and Automatic Evaluation Metric for Empathetic Dialogue Generation

COLING 2022main

Since empathy plays a crucial role in increasing social bonding between people, many studies have designed their own dialogue agents to be empathetic using the well-established method of fine-tuning. However, they do not use prompt-based in-context learning, which has shown powerful performance in v…

2022

Pneg: Prompt-based Negative Response Generation for Dialogue Response Selection Task

EMNLP 2022main

In retrieval-based dialogue systems, a response selection model acts as a ranker to select the most appropriate response among several candidates. However, such selection models tend to rely on context-response content similarity, which makes models vulnerable to adversarial responses that are seman…

Cited by 6SourcePDFScholar
2021

Constructing Multi-Modal Dialogue Dataset by Replacing Text with Semantically Relevant Images

ACL 2021short

In multi-modal dialogue systems, it is important to allow the use of images as part of a multi-turn conversation. Training such dialogue systems generally requires a large-scale dataset consisting of multi-turn dialogues that involve images, but such datasets rarely exist. In response, this paper pr…