GitHub

đź–‹ Kairui Hu, Penghao Wu, Fanyi Pu, Wang Xiao, Xiang Yue, Yuanhan Zhang, Bo Li, and Ziwei Liu


🔥 News

đź§  Overview

Figure 1

Video-MMMU is the first benchmark to assess knowledge acquisition from educational videos, evaluating how well LMMs learn new knowledge from videos and apply what they learn in practice.

1) Knowledge-Intensive Video Collection

Video-MMMU features 300 lecture-style videos covering 6 professional disciplines—Art, Business, Science, Medicine, Humanities, and Engineering, spanning 30 subjects.

2) Knowledge Acquisition-Based Question Design

Each video is accompanied by 3 QA pairs, designed to evaluate video-based learning at different cognitive levels:

  • Perception – Identifying key information.
  • Comprehension – Understanding underlying concepts.
  • Adaptation – Applying knowledge to new scenarios.

This results in 900 question-answer pairs (300 videos Ă— 3 QA pairs per video), systematically measuring a model's ability to acquire and apply knowledge from educational videos.

❓QA Design

Figure 2

Perception

  • ASR (Automatic Speech Recognition): The Art category (top left).
  • OCR (Optical Character Recognition): The Business category (bottom left).

Comprehension

  • Concept Comprehension: The Humanities category (top center).
  • Problem-Solving Strategy Comprehension: The Science category (bottom center).

Adaptation

  • Case Study Analysis: The Medicine category (top right).
  • Problem-Solving Strategy Adaptation: The Engineering category (bottom right).

Figure 3

🔍 A New Perspective on VideoQA

Videos as a Knowledge Source

Traditional VideoQA benchmarks focus primarily on evaluating how well models interpret visual content. Video-MMMU is the first to treat videos as a source of knowledge, assessing how effectively LMMs acquire knowledge from educational videos.

Measuring Knowledge Gain: The Δknowledge Metric

A key novelty of Video-MMMU is that it evaluates not just a model’s absolute accuracy but also its delta accuracy—the improvement in performance after learning from a video. A model may initially fail to solve an exam question, but we give the model a video where a human could learn to solve the question by watching this video. Video-MMMU evaluates how well LMMs improve their performance after watching the relevant video. Video-MMMU introduces Δknowledge to quantify the model's learning gain on the Adaptation track questions. Δknowledge is defined as the normalized performance gain:

Read the original on github.com ↗