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New benchmark reveals biases in video-language models' object counting

Researchers have introduced CountVideoBench, a new benchmark designed to evaluate the object counting capabilities and biases of video-language models. Existing benchmarks suffer from skewed ground-truth count distributions, with a median count of five or less, making it difficult to assess performance on higher cardinalities. CountVideoBench features 2,600 synthetic videos with object counts ranging from 5 to 50, controlled for confounds like object motion. Evaluations of sixteen models showed that none exceeded 27.6% Exact Match accuracy, and performance varied significantly across models, revealing a tendency for models to concentrate predictions on specific integers rather than accurately counting. AI

IMPACT Highlights the need for more robust benchmarks to accurately assess and improve the object counting abilities of video-language models.

RANK_REASON The cluster describes a new academic benchmark for evaluating AI models. [lever_c_demoted from research: ic=1 ai=1.0]

Read on arXiv cs.AI →

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New benchmark reveals biases in video-language models' object counting

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The cluster describes a new academic benchmark for evaluating AI models. [lever_c_demoted from research: ic=1 ai=1.0]
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COVERAGE [1]

  1. arXiv cs.AI TIER_1 English(EN) · Marc Chapus, Carlos Crispim-Junior, V\'eronique Eglin, Atilla Baskurt ·

    CountVideoBench: A Benchmark to Evaluate Prediction Biases on the Object Counting task by Video-Language Models

    arXiv:2610.28356v1 Announce Type: cross Abstract: Object counting in videos remains a poorly characterized capability of multimodal large language models. Counting questions are included in many existing VideoQA benchmarks, but the ground-truth count distributions in these benchm…