Title
Learning Max-Margin Tree Predictors.
Abstract
Structured prediction is a powerful framework for coping with joint prediction of interacting outputs. A central difficulty in using this framework is that often the correct label dependence structure is unknown. At the same time, we would like to avoid an overly complex structure that will lead to intractable prediction. In this work we address the challenge of learning tree structured predictive models that achieve high accuracy while at the same time facilitate efficient (linear time) inference. We start by proving that this task is in general NP-hard, and then suggest an approximate alternative. Briefly, our CRANK approach relies on a novel Circuit-RANK regularizer that penalizes non-tree structures and that can be optimized using a CCCP procedure. We demonstrate the effectiveness of our approach on several domains and show that, despite the relative simplicity of the structure, prediction accuracy is competitive with a fully connected model that is computationally costly at prediction time.
Year
Venue
DocType
2013
UAI
Journal
Volume
Citations 
PageRank 
abs/1309.6847
1
0.35
References 
Authors
15
4
Name
Order
Citations
PageRank
Ofer Meshi115412.94
Elad Eban2294.86
Elidan, Gal387177.14
Amir Globerson41515117.72