That is how IHS Global calls it:
The fourth-quarter GDP surge was produced by a sharp turn in the inventory cycle. Firms still cut inventories in the fourth quarter, but much less severely than in the third. That led to increased production, which boosted GDP. Final sales growth, a better guide to the underlying path of the economy, was much more sedate, at 2.2%, but that was still an improvement on the third quarter’s 1.5% pace.