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Erxin Yu

9 accepted papers

2026

CitySeeker: How Do VLMs Explore Embodied Urban Navigation with Implicit Human Needs?

ICLR 2026poster

Vision-Language Models (VLMs) have made significant progress in explicit instruction-based navigation; however, their ability to interpret implicit human needs (e.g., ''I am thirsty'') in dynamic urban environments remains underexplored. This paper introduces CitySeeker, a novel benchmark designed t…

Cited by 0SourcecodeScholar
2025

OASIS: Order-Augmented Strategy for Improved Code Search

ACL 2025long

Code embeddings capture the semantic representations of code and are crucial for various code-related large language model (LLM) applications, such as code search. Previous training primarily relies on optimizing the InfoNCE loss by comparing positive natural language (NL)-code pairs with in-batch n…

2025

Self-Error-Instruct: Generalizing from Errors for LLMs Mathematical Reasoning

ACL 2025long

Although large language models demonstrate strong performance across various domains, they still struggle with numerous bad cases in mathematical reasoning. Previous approaches to learning from errors synthesize training data by solely extrapolating from isolated bad cases, thereby failing to genera…

2025

UAlign: Leveraging Uncertainty Estimations for Factuality Alignment on Large Language Models

ACL 2025long

Despite demonstrating impressive capabilities, Large Language Models (LLMs) still often struggle to accurately express the factual knowledge they possess, especially in cases where the LLMs’ knowledge boundaries are ambiguous. To improve LLMs’ factual expressions, we propose the UAlign framework, wh…

2024

CoSafe: Evaluating Large Language Model Safety in Multi-Turn Dialogue Coreference

EMNLP 2024main

As large language models (LLMs) constantly evolve, ensuring their safety remains a critical research issue. Previous red teaming approaches for LLM safety have primarily focused on single prompt attacks or goal hijacking. To the best of our knowledge, we are the first to study LLM safety in multi-tu…

2024

PopALM: Popularity-Aligned Language Models for Social Media Trendy Response Prediction

COLING 2024main

Social media platforms are daily exhibiting millions of events. To preliminarily predict the mainstream public reaction to these events, we study trendy response prediction to automatically generate top-liked user replies to social media events. While previous works focus on generating responses wit…

2022

Learning Semantic Textual Similarity via Topic-informed Discrete Latent Variables

EMNLP 2022main

Recently, discrete latent variable models have received a surge of interest in both Natural Language Processing (NLP) and Computer Vision (CV), attributed to their comparable performance to the continuous counterparts in representation learning, while being more interpretable in their predictions. I…

2020

ToHRE: A Top-Down Classification Strategy with Hierarchical Bag Representation for Distantly Supervised Relation Extraction

COLING 2020main

Distantly Supervised Relation Extraction (DSRE) has proven to be effective to find relational facts from texts, but it still suffers from two main problems: the wrong labeling problem and the long-tail problem. Most of the existing approaches address these two problems through flat classification, w…