This directory contains postscript versions of: nnsp.ps.Z Weiss Y., and Adelson E.H., Motion Estimation and Segmentation using a Recurrent Mixtures-of-Experts Architecture. To appear in: Proceedings of IEEE workshop on Neural Nets in Signal Processing. TR.ps.Z Weiss Y., and Adelson E.H., Perceptually organized EM: A framework for motion segmentation that combines information about form and motion. MIT Media Lab Perceptual Computing TR no. 315