A tappen is an obstruction, or indigestible mass, found in the intestines of bears and other animals during hibernation. Also referred to as a "rectal plug.

A Comparative Study of Energy Minimization Methods for Markov Random Fields with Smoothness-Based Priors
A Comparative Study of Energy Minimization Methods for Markov Random Fields
A comparative study of energy minimization methods for markov random fields
Comparison of Graph Cuts with Belief Propagation for Stereo, using Identical MRF Parameters
Postcranial evidence from early Homo from Dmanisi, Georgia.
Interventions to reduce hospitalizations from nursing homes: evaluation of the INTERACT II collaborative quality improvement project
A new skull of early Homo from Dmanisi, Georgia.
Graph cuts and belief propagation for stereo, using identical MRF parameters
Sparse Convolutional Neural Networks
Exploring the Trade-off Between Accuracy and Observational Latency in Action Recognition