As at previous TAG+ conferences, the topics addressed by the presentations belong to diverse areas of research, namely the mathematics of grammar formalisms and parsing, the syntax and semantics of natural languages, compact grammar representations and grammar engineering, the relation between TAG and other grammar formalisms, and applications to computational biology. By bringing together these different topics under the common theme of Tree Adjoining Grammars, the workshop promises to be an inspiring and fruitful event.
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The hidden TAG model: synchronous grammars for parsing resource-poor languages
This paper discusses a novel probabilistic synchronous TAG formalism, synchronous Tree Substitution Grammar with sister adjunction (TSG+SA). We use it to parse a language for which there is no training data, by leveraging off a second, related language ...
A constraint driven metagrammar
We present an operational framework allowing to express a large scale Tree Adjoining Grammar (tag) by using higher level operational constraints on tree descriptions. These constraints first meant to guarantee the well formedness of the grammatical ...
The metagrammar goes multilingual: a cross-linguistic look at the V2-phenomenon
We present an initial investigation into the use of a metagrammar for explicitly sharing abstract grammatical specifications among languages. We define a single class hierarchy for a metagrammar which allows us to automatically generate grammars for ...
The weak generative capacity of linear tree-adjoining grammars
Linear tree-adjoining grammars (TAGs), by analogy with linear context-free grammars, are tree-adjoining grammars in which at most one symbol in each elementary tree can be rewritten (adjoined or substituted at). Uemura et al. (1999), calling these ...
A tree adjoining grammar analysis of the syntax and semantics of it-clefts
In this paper, we argue that in it-clefts as in It was Ohno who won, the cleft pronoun (it) and the cleft clause (who won) form a discontinuous syntactic constituent, and a semantic unit as a definite description, presenting arguments from Percus (1997) ...
Pied-piping in relative clauses: syntax and compositional semantics based on synchronous tree adjoining grammar
In relative clauses, the wh relative pronoun can be embedded in a larger phrase, as in a boy [whose brother] Mary hit. In such examples, we say that the larger phrase has pied-piped along with the wh-word. In this paper, using a similar syntactic ...
Negative concord and restructuring in Palestinian Arabic: a comparison of TAG and CCG analyses
This paper discusses interactions between negative concord and restructuring/clause union in Palestinian Arabic. Analyses formulated in Tree Adjoining Grammar and Combinatorial Categorial Grammar are compared, with the conclusion that a perspicuous ...
Stochastic multiple context-free grammar for RNA pseudoknot modeling
Several grammars have been proposed for modeling RNA pseudoknotted structure. In this paper, we focus on multiple context-free grammars (MCFGs), which are natural extension of context-free grammars and can represent pseudoknots, and extend a specific ...
Binding of anaphors in LTAG
This paper presents an LTAG account for binding of reflexives and reciprocals in English. For these anaphors, a multi-component lexical entry is proposed, whose first component is a degenerate NP-tree that adjoins into the anaphor's binder. This ...
Quantifier scope in German: an MCTAG analysis
Relative quantifier scope in German depends, in contrast to English, very much on word order. The scope possibilities of a quantifier are determined by its surface position, its base position and the type of the quantifier. In this paper we propose a ...
Licensing German negative polarity items in LTAG
Our paper aims at capturing the distribution of negative polarity items (NPIs) within lexicalized Tree Adjoining Grammar (LTAG). The condition under which an NPI can occur in a sentence is for it to be in the scope of a negation with no quantifiers ...
Semantic interpretation of unrealized syntactic material in LTAG
This paper presents a LTAG-based analysis of gapping and VP ellipsis, which proposes that resolution of the elided material is part of a general disambiguation procedure, which is also responsible for resolution of underspecified representations of ...
Three reasons to adopt TAG-based surface realisation
Surface realisation from flat semantic formulae is known to be exponential in the length of the input. In this paper, we argue that TAG naturally supports the integration of three main ways of reducing complexity: polarity filtering, delayed adjunction ...
Generating XTAG parsers from algebraic specifications
In this paper, a generic system that generates parsers from parsing schemata is applied to the particular case of the XTAG English grammar. In order to be able to generate XTAG parsers, some transformations are made to the grammar, and TAG parsing ...
Constraint-based computational semantics: a comparison between LTAG and LRS
This paper compares two approaches to computational semantics, namely semantic unification in Lexicalized Tree Adjoining Grammars (LTAG) and Lexical Resource Semantics (LRS) in HPSG. There are striking similarities between the frameworks that make them ...
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Tree insertion grammar: a cubic-time, parsable formalism that lexicalizes context-free grammar without changing the trees produced
Tree insertion grammar (TIG) is a tree-based formalism that makes use of tree substitution and tree adjunction. TIG is related to tree adjoining grammar. However, the adjunction permitted in TIG is sufficiently restricted that TIGs only derive context-...



