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Aligning Packed Dependency Trees: A Theory of Composition for Distributional Semantics
Dependency Trees Distributional Semantics
2017/4/6
We present a new framework for compositional distributional semantics in which the distributional
contexts of lexemes are expressed in terms of anchored packed dependency trees. We show
that these s...
Feature Selection for a Rich HPSG Grammar Using Decision Trees
Feature Selection Rich HPSG Grammar Decision Trees
2015/6/12
This paper examines feature selection for log linear models over rich constraint-based grammar (HPSG) representations by building decision trees over features in corresponding probabilistic context fr...
Factored A Search for Models over Sequences and Trees
Factored A Search Models over Sequences and Trees
2015/6/12
We investigate the calculation of A* bounds for sequence and tree models which are the explicit intersection of a set of simpler models or can be bounded by such an intersection. We provide a natural ...
The Leaf Projection Path View of Parse Trees:Exploring String Kernels for HPSG Parse Selection
The Leaf Projection Path View Parse Trees String Kernels HPSG Parse Selection
2015/6/12
We present a novel representation of parse trees as lists of paths (leaf projection paths) from leaves to the top level of the tree. This representation allows us to achieve significantly higher accur...
Decision Trees for Lexical Smoothing in Statistical Machine Translation
Lexical Smoothing Statistical Machine Translation
2015/3/9
Decision Trees for Lexical Smoothing in Statistical Machine Translation.