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Beong-woo Kwak

13 accepted papers

2026

Embodied Agents Meet Personalization: Investigating Challenges and Solutions Through the Lens of Memory Utilization

ICLR 2026poster

LLM-powered embodied agents have shown success on conventional object-rearrangement tasks, but providing personalized assistance that leverages user-specific knowledge from past interactions presents new challenges. We investigate these challenges through the lens of agents' memory utilization along…

Cited by 0SourcecodeScholar
2026

On Training Large Language Models for Long-Horizon Tasks: An Empirical Study of Horizon Length

ICML 2026poster

Large language models (LLMs) have shown promise as interactive agents that solve tasks through extended sequences of environment interactions. While prior work has primarily focused on system-level optimizations or algorithmic improvements, the role of task horizon length in shaping training dynamic…

Cited by 0SourceScholar
2025

Can You Share Your Story? Modeling Clients’ Metacognition and Openness for LLM Therapist Evaluation

ACL 2025finding

Understanding clients’ thoughts and beliefs is fundamental in counseling, yet current evaluations of LLM therapists often fail to assess this ability. Existing evaluation methods rely on client simulators that clearly disclose internal states to the therapist, making it difficult to determine whethe…

Cited by 0SourcePDFScholar
2025

Do LLMs Have Distinct and Consistent Personality? TRAIT: Personality Testset designed for LLMs with Psychometrics

NAACL 2025findings

Recent advancements in Large Language Models (LLMs) have led to their adaptation in various domains as conversational agents. We wonder: can personality tests be applied to these agents to analyze their behavior, similar to humans? We introduce TRAIT, a new benchmark consisting of 8K multi-choice qu…

Cited by 13SourcePDFScholar
2025

LLM Meets Scene Graph: Can Large Language Models Understand and Generate Scene Graphs? A Benchmark and Empirical Study

ACL 2025long

The remarkable reasoning and generalization capabilities of Large Language Models (LLMs) have paved the way for their expanding applications in embodied AI, robotics, and other real-world tasks. To effectively support these applications, grounding in spatial and temporal understanding in multimodal…

2025

ToolHaystack: Stress-Testing Tool-Augmented Language Models in Realistic Long-Term Interactions

EMNLP 2025

Large language models (LLMs) have demonstrated strong capabilities in using external tools to address user inquiries. However, most existing evaluations assume tool use in short contexts, offering limited insight into model behavior during realistic long-term interactions. To fill this gap, we intro

2025

Web-Shepherd: Advancing PRMs for Reinforcing Web Agents

NeurIPS 2025spotlight

Web navigation is a unique domain that can automate many repetitive real-life tasks and is challenging as it requires long-horizon sequential decision making beyond typical multimodal large language model (MLLM) tasks. Yet, specialized reward models for web navigation that can be utilized during bot…

Cited by 0SourcecodeScholar
2024

Coffee-Gym: An Environment for Evaluating and Improving Natural Language Feedback on Erroneous Code

EMNLP 2024main

This paper presents Coffee-Gym, a comprehensive RL environment for training models that provide feedback on code editing. Coffee-Gym includes two major components: (1) Coffee, a dataset containing humans’ code edit traces for coding questions and human-written feedback for editing erroneous code; (2…

Cited by 2SourcePDFScholar
2024

Language Models as Compilers: Simulating Pseudocode Execution Improves Algorithmic Reasoning in Language Models

EMNLP 2024main

Algorithmic reasoning tasks that involve complex logical patterns, such as completing Dyck language, pose challenges for large language models (LLMs), despite their recent success. Prior work has used LLMs to generate programming language and applied external compilers for such tasks. Yet, when on t…

2024

Pearl: A Review-driven Persona-Knowledge Grounded Conversational Recommendation Dataset

ACL 2024findings

Conversational recommender systems are an emerging area that has garnered increasing interest in the community, especially with the advancements in large language models (LLMs) that enable sophisticated handling of conversational input. Despite the progress, the field still has many aspects left to…

2022

Dual Task Framework for Improving Persona-Grounded Dialogue Dataset

AAAI 2022technical

This paper introduces a simple yet effective data-centric approach for the task of improving persona-conditioned dialogue agents. Prior model-centric approaches unquestioningly depend on the raw crowdsourced benchmark datasets such as Persona-Chat. In contrast, we aim to fix annotation artifacts in…

Cited by 9SourcePDFScholar
2022

Modularized Transfer Learning with Multiple Knowledge Graphs for Zero-shot Commonsense Reasoning

NAACL 2022long

Commonsense reasoning systems should be able to generalize to diverse reasoning cases. However, most state-of-the-art approaches depend on expensive data annotations and overfit to a specific benchmark without learning how to perform general semantic reasoning. To overcome these drawbacks, zero-shot…

Cited by 16SourcePDFScholar
2022

TrustAL: Trustworthy Active Learning Using Knowledge Distillation

AAAI 2022technical

Active learning can be defined as iterations of data labeling, model training, and data acquisition, until sufficient labels are acquired. A traditional view of data acquisition is that, through iterations, knowledge from human labels and models is implicitly distilled to monotonically increase the…

Cited by 10SourcePDFScholar