arXiv Computation and Language

Scaling cross-situational word learning on children's naturalistic experiences

arXiv Computation and Language
Oct 12

Vision Transformers Learn Word Meaning from Images Alone

The study demonstrates that large DINOv3 vision transformers, trained solely on images without any language supervision, can organize rendered words in their embedding space according to meaning. By deriving word representations from differences between word images and matched controls, the authors show that semantically related words cluster together, brand names group by industry, and country-capital pairs exhibit consistent vector offsets. These representations align with visual object categories and share structure with text and speech encoders, indicating that image-only training can impart both visual and semantic understanding of words.

By Anders Gj{\o}lbye, Sebastian Ray Mason, Stella Frank, Lars Kai Hansen
arXiv Computation and Language
1d ago

GAVAGAI: Referential Alignment for Infant-Scale Vision-Language Models via Balanced Optimal Transport

The paper introduces GAVAGAI, a method that adds a referential alignment variable to vision‑language models by solving a small assignment problem via entropic optimal transport. By allowing words to be assigned to a special NOTHING column and enforcing a capacity constraint on regions, the approach improves word‑to‑picture accuracy and localization on the SAYCam infant video corpus. Experiments show that the alignment loss boosts performance over a standard next‑token captioning baseline, especially under high non‑reference rates.

By Rajdeep Pal, Jotiraditya Banerjee, Saptarshi Pani
arXiv Computation and Language
Sep 11

Augustinian BabyLM: What Ostensive Definition Can and Cannot Teach a Small Language Model

The paper introduces an experiment where a small masked language model (DeBERTa) is initialized with visual embeddings for tokens that correspond to image regions, following St. Augustine’s ostensive definition of word learning. The visual initialization leaves a measurable imprint that persists through training, yet it does not improve performance on most BabyLM benchmarks that test abstract grammatical knowledge. However, the seeded models show a consistent advantage in zero‑shot object‑property tasks and in a custom Visual‑Property Swap benchmark that probes color, material, size, and shape knowledge, with the advantage confined to the seeded words and transferable to newly seeded words.

By Lisa Bylinina
arXiv AI
Sep 7

Cross-Task Generalization Between Understanding and Generation in Unified Vision-Language Models: A Controlled Study

The study investigates how unified vision‑language models (VLMs) can simultaneously support visual understanding and generation. Using controlled benchmarks (SmartWatch and modified CelebA) that pair VQA, captioning, and text‑to‑image tasks, the authors evaluate several LLM‑based architectures built on SigLIP and VQ‑VAE visual spaces. Results show that mixed training can improve both understanding and generation, but the gains depend on how well the visual input and output spaces are aligned; misaligned or distorted visual spaces can weaken or reverse these benefits. The paper also demonstrates that balancing data across tasks and controlling attribute frequencies can help recover underrepresented visual concepts, and that the transfer is driven more by the base language model’s learned relationships than by visual adapters.

By Jihai Zhang, Tianle Li, Linjie Li, Zhengyuan Yang, Yu Cheng
arXiv Computation and Language
Oct 19

Would you still call this Dax? Novel Visual References in VLMs and Humans

The paper introduces the Novel Visual References Dataset (NVRD), comprising 19,176 images of 90 new visual concepts with up to 20 perturbed versions each, designed to test how vision‑language models and humans map novel visual references to language. The authors evaluate three open‑source and two closed‑source VLMs against 2,400 human judgments, finding that models struggle to learn new concepts that contradict pre‑training knowledge and tend to overgeneralize labels to stimuli humans reject. NVRD is released as a benchmark for studying visual concept learning in both humans and machines.

By Ada Defne T\"ur, Gaurav Kamath, Joyce Chai, Siva Reddy, Benno Krojer