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Dialogue pressures and syntactic changeKempson, Ruth, Cann, Ronnie January 2006 (has links)
On the basis of the Dynamic Syntax
framework, this paper argues that the
production pressures in dialogue determining
alignment effects and given versus
new informational effects also drive
the shift from case-rich free word order
systems without clitic pronouns into systems
with clitic pronouns with rigid relative
ordering. <br>The paper introduces assumptions
of Dynamic Syntax, in particular
the building up of interpretation
through structural underspecification and
update, sketches the attendant account
of production with close coordination of
parsing and production strategies, and
shows how what was at the Latin stage a
purely pragmatic, production-driven decision
about linear ordering becomes encoded
in the clitics in theMedieval Spanish
system which then through successive
steps of routinization yield the modern
systems with immediately pre-verbal
fixed clitic templates.
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brandial’06 : Proceedings of the 10th Workshop on the semantics and pragmatics of dialogue (SemDial-10)January 2006 (has links)
brandial06 was the tenth in a series of workshops that aims to
bring together researchers working on the semantics and pragmatics of
dialogues in fields such as artificial intelligence, formal semantics
and pragmatics, computational linguistics, philosophy, and psychology.
This volume collects all presented papers and posters and gives abstracts
of the invited talks.
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New features in PARC finite state toolkits (Abstract)Karttunen, Lauri January 2008 (has links)
No description available.
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Advances in automata implementation techniques (Abstract)Watson, Bruce W. January 2008 (has links)
No description available.
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Applications of diamonded double negationYli-Jyrä, Anssi January 2008 (has links)
Nested complementation plays an important role in expressing counter- i.e. star-free and first-order definable languages and their hierarchies. In addition, methods that compile phonological rules into finite-state networks use double-nested complementation or “double negation”. This paper reviews how the double-nested complementation extends to a relatively new operation, generalized restriction (GR), coined by the author (Yli-Jyrä and Koskenniemi 2004). This operation encapsulates a double-nested complementation and elimination of a concatenation marker, diamond, whose finite occurrences align concatenations in the arguments of the operation. The paper demonstrates that the GR operation has an interesting potential in expressing regular languages, various kinds of grammars, bimorphisms and relations. This motivates a further study of optimized implementation of the operator.
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Asymmetric term alignment with selective contiguity constraints by multi-tape automataBarbaiani, Mădălina, Cancedda, Nicola, Dance, Chris, Fazekas, Szilárd, Gaál, Tamás, Gaussier, Éric January 2008 (has links)
This article describes a HMM-based word-alignment method that can selectively enforce a contiguity constraint. This method has a direct application in the extraction of a bilingual terminological lexicon from a parallel corpus, but can also be used as a preliminary step for the extraction of phrase pairs in a Phrase-Based Statistical Machine Translation system. Contiguous source words composing terms are aligned to contiguous target language words. The HMM is transformed into a Weighted Finite State Transducer (WFST) and contiguity constraints are enforced by specific multi-tape WFSTs. The proposed method is especially suited when basic linguistic resources (morphological analyzer, part-of-speech taggers and term extractors) are available for the source language only.
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Finite-state compilation of feature structures for two-level morphologyBarthélemy, François January 2008 (has links)
This paper describes a two-level formalism where feature structures are used in contextual rules. Whereas usual two-level grammars describe rational sets over symbol pairs, this new formalism uses tree structured regular expressions. They allow an explicit and precise definition of the scope of feature structures. A given surface form may be described using several feature structures. Feature unification is expressed in contextual rules using variables, like in a unification grammar. Grammars are compiled in finite state multi-tape transducers.
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Segmentation in super-chunks with a finite-state approachBlanc, Olivier, Constant, Matthieu, Watrin, Patrick January 2008 (has links)
Since Harris’ parser in the late 50s, multiword units have been progressively integrated in parsers. Nevertheless, in the most part, they are still restricted to compound words, that are more stable and less numerous. Actually, language is full of semi-fixed expressions that also form basic semantic units: semi-fixed adverbial expressions (e.g. time), collocations. Like compounds, the identification of these structures limits the combinatorial complexity induced by lexical ambiguity. In this paper, we detail an experiment that largely integrates these notions in a finite-state procedure of segmentation into super-chunks, preliminary to a parser.We show that the chunker, developped for French, reaches 92.9% precision and 98.7% recall. Moreover, multiword units realize 36.6% of the attachments within nominal and prepositional phrases.
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Intersection optimization is NP-completeBonfante, Guillaume, Le Roux, Joseph January 2008 (has links)
Finite state methods for natural language processing often require the construction and the intersection of several automata. In this paper, we investigate the question of determining the best order in which these intersections should be performed. We take as an example lexical disambiguation in polarity grammars. We show that there is no efficient way to minimize the state complexity of these intersections.
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Optimality theory and minimalism : interface theoriesJanuary 2009 (has links)
The papers contained in this issue share the insight that the different components of the grammar sometimes impose conflicting requirements on the grammar’s output, and that, in order to handle such conflicts, it seems advantageous to combine aspects from minimalist and OT modelling. The papers show that this can be undertaken in a multiplicity of ways, by using varying proportions of each framework, and offer a broad range of perspectives for future research.
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