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Yoo Sung Jang

3 accepted papers

2026

IVRA: Improving Visual-Token Relations for Robot Action Policy with Training-Free Hint-Based Guidance

ICRA 2026poster

Many Vision-Language-Action (VLA) models flatten image patches into a 1D token sequence, weakening the 2D spatial cues needed for precise manipulation. We introduce IVRA, a lightweight, training-free method that improves spatial understanding by exploiting affinity hints already available in the mod…

2025

LLaRA: Supercharging Robot Learning Data for Vision-Language Policy

ICLR 2025poster

Vision Language Models (VLMs) have recently been leveraged to generate robotic actions, forming Vision-Language-Action (VLA) models. However, directly adapting a pretrained VLM for robotic control remains challenging, particularly when constrained by a limited number of robot demonstrations. In this…

2021

Pushing on Text Readability Assessment: A Transformer Meets Handcrafted Linguistic Features

EMNLP 2021main

We report two essential improvements in readability assessment: 1. three novel features in advanced semantics and 2. the timely evidence that traditional ML models (e.g. Random Forest, using handcrafted features) can combine with transformers (e.g. RoBERTa) to augment model performance. First, we ex…