How to compute AP(Average Precision) for test evaluation over IKEA Dataset?

[li-zemin]

Hello, in your paper 3D-VAE-IWGAN, you tested your model over IKEA Dataset and scored with Avarage Precision for comparing to 3D-VAE-GAN. I know that the evaluation critic is introduced from Girdhar , however i am not finding the clear definition. So could tell me the definition of Average Precision? Thank you!

[EdwardSmith1884]

The function I used to compute it is here, the definition is included in the page.

[li-zemin]

Thank you very much!