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Sungwoong Kim

23 accepted papers

2026

OSPO: Object-Centric Self-Improving Preference Optimization for Text-to-Image Generation

CVPR 2026

Recent advances in Multimodal Large Language Models (MLLMs) have enabled unified multimodal understanding and generation. However, they still struggle with fine-grained text-image alignment, often failing to faithfully depict objects with correct attributes such as color, shape, and spatial relation

Cited by 0SourceScholar
2025

CANVAS: Commonsense-Aware Navigation System for Intuitive Human-Robot Interaction

ICRA 2025

Real-life robot navigation involves more than just reaching a destination; it requires optimizing movements while addressing scenario-specific goals. An intuitive way for humans to express these goals is through abstract cues like verbal commands or rough sketches. Such human guidance may lack detai

Cited by 4SourceScholar
2025

ConfPO: Exploiting Policy Model Confidence for Critical Token Selection in Preference Optimization

ICML 2025poster

We introduce ConfPO, a method for preference learning in Large Language Models (LLMs) that identifies and optimizes preference-critical tokens based solely on the training policy's confidence, without requiring any auxiliary models or compute. Unlike prior Direct Alignment Algorithms (DAAs) such as…

2025

EgoSpeak: Learning When to Speak for Egocentric Conversational Agents in the Wild

NAACL 2025findings

Predicting when to initiate speech in real-world environments remains a fundamental challenge for conversational agents. We introduce , a novel framework for real-time speech initiation prediction in egocentric streaming video. By modeling the conversation from the speaker’s first-person viewpoint,…

Cited by 0SourcePDFScholar
2025

Score-informed Neural Operator for Enhancing Ordering-based Causal Discovery

NeurIPS 2025poster

Ordering-based approaches to causal discovery identify topological orders of causal graphs, providing scalable alternatives to combinatorial search methods. Under the Additive Noise Models (ANMs) assumption, recent causal ordering methods based on score matching require an accurate estimation of the…

Cited by 0SourceScholar
2025

Subtle Risks, Critical Failures: A Framework for Diagnosing Physical Safety of LLMs for Embodied Decision Making

EMNLP 2025

Large Language Models (LLMs) are increasingly used for decision making in embodied agents, yet existing safety evaluations often rely on coarse success rates and domain-specific setups, making it difficult to diagnose why and where these models fail. This obscures our understanding of embodied safet

Cited by 0SourcePDFScholar
2025

VisEscape: A Benchmark for Evaluating Exploration-driven Decision-making in Virtual Escape Rooms

EMNLP 2025

Escape rooms present a unique cognitive challenge that demands exploration-driven planning: with the sole instruction to escape the room, players must actively search their environment, collecting information, and finding solutions through repeated trial and error. Motivated by this, we introduce Vi

2024

MEVG : Multi-event Video Generation with Text-to-Video Models

ECCV 2024poster

"We introduce a novel diffusion-based video generation method, generating a video showing multiple events given multiple individual sentences from the user. Our method does not require a large-scale video dataset since our method uses a pre-trained diffusion-based text-to-video generative model with…

2024

Query-based Cross-Modal Projector Bolstering Mamba Multimodal LLM

EMNLP 2024finding

The Transformer’s quadratic complexity with input length imposes an unsustainable computational load on large language models (LLMs). In contrast, the Selective Scan Structured State-Space Model, or Mamba, addresses this computational challenge effectively. This paper explores a query-based cross-mo…

Cited by 0SourcePDFScholar
2024

TLCR: Token-Level Continuous Reward for Fine-grained Reinforcement Learning from Human Feedback

ACL 2024findings

Reinforcement Learning from Human Feedback (RLHF) leverages human preference data to train language models to align more closely with human essence. These human preference data, however, are labeled at the sequence level, creating a mismatch between sequence-level preference labels and tokens, which…

2023

Efficient Latent Variable Modeling for Knowledge-Grounded Dialogue Generation

EMNLP 2023long findings

Knowledge-grounded dialogue generation requires first retrieving appropriate external knowledge based on a conversational context and then generating a response grounded on the retrieved knowledge. In general, these two sequential modules, a knowledge retriever and a response generator, have been se…

Cited by 0SourceScholar
2023

MAGVLT: Masked Generative Vision-and-Language Transformer

CVPR 2023poster

While generative modeling on multimodal image-text data has been actively developed with large-scale paired datasets, there have been limited attempts to generate both image and text data by a single model rather than a generation of one fixed modality conditioned on the other modality. In this pape…

2022

LECO: Learnable Episodic Count for Task-Specific Intrinsic Reward

NeurIPS 2022accept

Episodic count has been widely used to design a simple yet effective intrinsic motivation for reinforcement learning with a sparse reward. However, the use of episodic count in a high-dimensional state space as well as over a long episode time requires a thorough state compression and fast hashing,…

2022

Selective Token Generation for Few-shot Natural Language Generation

COLING 2022main

Natural language modeling with limited training data is a challenging problem, and many algorithms make use of large-scale pretrained language models (PLMs) for this due to its great generalization ability. Among them, additive learning that incorporates a task-specific adapter on top of the fixed l…

2019

Mining GOLD Samples for Conditional GANs

NeurIPS 2019poster

Conditional generative adversarial networks (cGANs) have gained a considerable attention in recent years due to its class-wise controllability and superior quality for complex generation tasks. We introduce a simple yet effective approach to improving cGANs by measuring the discrepancy between the d…

2018

Bayesian Model-Agnostic Meta-Learning

NeurIPS 2018spotlight

Due to the inherent model uncertainty, learning to infer Bayesian posterior from a few-shot dataset is an important step towards robust meta-learning. In this paper, we propose a novel Bayesian model-agnostic meta-learning method. The proposed method combines efficient gradient-based meta-learning w…

Cited by 536SourcePDFScholar