Review for NeurIPS paper: PRANK: motion Prediction based on RANKing

Weaknesses: - In L36-43, the authors introduce three requirements: latency, accuracy for most likely trajectory, way to quantify future uncertainty and multimodality. However, the present work provides limited information on the latency and does not show any evaluation to address the way to quantify uncertainty. Although in Sec.4.5 the authors provide a runtime performance, it is hard to measure if the presented work shows low latency without providing any reference speed of existing methods or practical requirement in AD systems. Also, how do you quantify uncertainty? If such items are not properly addressed, the authors should rewrite L36-43.