English

TEXT2AFFORD: Probing Object Affordance Prediction abilities of Language Models solely from Text

Computation and Language 2025-09-29 v3

Abstract

We investigate the knowledge of object affordances in pre-trained language models (LMs) and pre-trained Vision-Language models (VLMs). A growing body of literature shows that PTLMs fail inconsistently and non-intuitively, demonstrating a lack of reasoning and grounding. To take a first step toward quantifying the effect of grounding (or lack thereof), we curate a novel and comprehensive dataset of object affordances -- Text2Afford, characterized by 15 affordance classes. Unlike affordance datasets collected in vision and language domains, we annotate in-the-wild sentences with objects and affordances. Experimental results reveal that PTLMs exhibit limited reasoning abilities when it comes to uncommon object affordances. We also observe that pre-trained VLMs do not necessarily capture object affordances effectively. Through few-shot fine-tuning, we demonstrate improvement in affordance knowledge in PTLMs and VLMs. Our research contributes a novel dataset for language grounding tasks, and presents insights into LM capabilities, advancing the understanding of object affordances. Codes and data are available at https://github.com/sayantan11995/Text2Afford

Keywords

Cite

@article{arxiv.2402.12881,
  title  = {TEXT2AFFORD: Probing Object Affordance Prediction abilities of Language Models solely from Text},
  author = {Sayantan Adak and Daivik Agrawal and Animesh Mukherjee and Somak Aditya},
  journal= {arXiv preprint arXiv:2402.12881},
  year   = {2025}
}

Comments

Accepted at Conference on Computational Natural Language Learning 2024