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Transactions on Machine Learning Research (TMLR) / presented at ICML 26 · 2026

mSOP-765k - A Benchmark For Multi-Modal Structured Output Predictions

Bianca Lamm, Janis Keuper

Why this publication matters

Turning a product advertisement into reliable database fields requires understanding images, words, and numbers together. mSOP-765k provides more than 765,000 annotated examples and a common evaluation framework for that task. It makes the remaining gap between impressive demonstrations and accurate structured extraction easier to measure.

Abstract

This paper introduces mSOP-765k, a large-scale benchmark for the evaluation of multi-modal Structured Output Prediction (mSOP) pipelines. Besides novel evaluation metrics, the benchmark provides combined training and test datasets with over 765,000 images taken from real-world product advertisements. Each of these images contains product visualizations, textual information like product name or brand, and numerical data such as product weight, price, and discount. All images are annotated with the corresponding structured information in form of dictionaries containing key-value pairs. An initial baseline evaluation, including various LLMs and VLMs, as well as multi-modal RAG approaches, shows that the proposed benchmark provides a challenging problem which can not yet be solved completely by state-of-the-art mSOP methods. The benchmark and dataset are available under a creative-commons license: https://huggingface.co/datasets/retail-product-promotion/mSOP-765k.

Abstract source ↗

Figures

A retail advertisement mapped to structured product and promotion attributes.
Task overview. Multimodal structured output prediction: a pipeline turns visual, textual, and numerical information into typed key–value pairs. Illustration from the official mSOP-765k project page. View in source ↗

Additional figures and captions will be added when the full paper is available.

Cite this paper

Download .bib
@article{lamm2026msop765ka78,
  title = {{mSOP-765k}: A Benchmark For Multi-Modal Structured Output Predictions},
  author = {Bianca Lamm and Janis Keuper},
  journal = {Transactions on Machine Learning Research},
  year = {2026},
  url = {https://openreview.net/forum?id=H7eYL4yFZS},
  issn = {2835-8856},
  note = {J2C Certification}
}

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