We provide a model that extends the splitmerge framework of Petrov et al. (2006) to jointly learn latent annotations and Tree Substitution Grammars (TSGs). We then conduct a variety of experiments with this model, first inducing grammars on a portion of the Penn Treebank and the Korean Treebank 2.0, and next experimenting with grammar refinement from a single nonterminal and from the Universal ...

In hierarchical phrase-based translation, coarse-grained nonterminal Xs may generate inappropriate translations due to the lack of sufficient information for phrasal substitution. In this paper we propose a framework to refine nonterminals in hierarchical translation rules with real-valued semantic representations. The semantic representations are learned via a weighted mean value and a minimum...

An attribute grammar is simple multi-visit if each attribute of a nonterminal has a fixed visit-number associated with it such that, during attribute evaluation, the attributes of a node which have visit-number j are computed at the jth visit to the node. An attribute grammar is Iordered if for each nonterminal a linear order of its attributes exists such that the attributes of a node can alway...

Objectives: To study the reported medical practice of euthanasia in Belgium since implementation of the euthanasia law. Research Design: Analysis of the anonymous database of all euthanasia cases reported to the Federal Control and Evaluation Committee Euthanasia. Subjects: All euthanasia cases reported by physicians for review between implementation of the euthanasia law on September 22nd, 200...