Unbalanced train segments for Heavy engine (low frequency)

The sound of a large, heavy-duty internal combustion engine, such as that which powers a large truck, locomotive, or ship. Jet engines, steam engines, rocket engines etc. are excluded.

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We estimate this class has low quality

In a random sample of videos for this class, we found 2 / 10 (20%) were accurate. Note that quality in the unbalanced training set may be significantly lower. Learn more.
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Unbalanced train videos for Heavy engine (low frequency) (4,113)