← Search

Wenkai Chen

6 accepted papers

2025

PAVLM: Advancing Point Cloud based Affordance Understanding Via Vision-Language Model

IROS 2025

Affordance understanding, the task of identifying actionable regions on 3D objects, plays a vital role in allowing robotic systems to engage with and operate within the physical world. Although Visual Language Models (VLMs) have excelled in high-level reasoning and long-horizon planning for robotic

Cited by 6SourcecodeScholar
2023

CASE: Commonsense-Augmented Score with an Expanded Answer Space

EMNLP 2023long findings

LLMs have demonstrated impressive zero-shot performance on NLP tasks thanks to the knowledge they acquired in their training. In multiple-choice QA tasks, the LM probabilities are used as an imperfect measure of the plausibility of each answer choice. One of the major limitations of the basic score…

Cited by 0SourcecodeScholar
2023

Semi-supervised Domain Adaptation via Prototype-based Multi-level Learning

IJCAI 2023poster

In semi-supervised domain adaptation (SSDA), a few labeled target samples of each class help the model to transfer knowledge representation from the fully labeled source domain to the target domain. Many existing methods ignore the benefits of making full use of the labeled target samples from multi…

2022

Learning 6-DoF Task-oriented Grasp Detection via Implicit Estimation and Visual Affordance

IROS 2022poster

Currently, task-oriented grasp detection approaches are mostly based on pixel-level affordance detection and semantic segmentation. These pixel-level approaches heavily rely on the accuracy of a 2D affordance mask, and the generated grasp candidates are restricted to a small workspace. To mitigate t…

Cited by 24SourceScholar
2021

A Semantic-based Method for Unsupervised Commonsense Question Answering

ACL 2021long

Unsupervised commonsense question answering is appealing since it does not rely on any labeled task data. Among existing work, a popular solution is to use pre-trained language models to score candidate choices directly conditioned on the question or context. However, such scores from language model…