Unbalanced train segments for Jackhammer

The sound of a pneumatic or electro-mechanical tool that combines a hammer directly with a chisel, usually used to break up rock, pavement, and concrete. Wikipedia

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We estimate this class has medium quality

In a random sample of videos for this class, we found 5 / 10 (50%) were accurate. Note that quality in the unbalanced training set may be significantly lower. Learn more.
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Unbalanced train videos for Jackhammer (161)