Temat: lexical semantics - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: An outline of type-theoretical approaches to lexical semantics
Autorzy:: Cooper, R.
Retoré, C.
Powiązania:: https://bibliotekanauki.pl/articles/103831.pdf
Data publikacji:: 2017
Wydawca:: Polska Akademia Nauk. Instytut Podstaw Informatyki PAN
Tematy:: lexical semantics
compositional semantics
type theory
lambda calculus
Opis:: We take the opportunity of the publication of some of the papers of the ESSLLI workshop TYTLES (TYpe Theory and LExical Semantics, ESSLLI 2015, Barcelona) to provide an overview of the possibilities that type theory offers to model lexical semantics, especially the type-theoretical frameworks that properly model compositional semantics.
Źródło:: Journal of Language Modelling; 2017, 5, 2; 165-178
2299-856X
2299-8470
Pojawia się w:: Journal of Language Modelling
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Text : now in 2D! A framework for lexical expansion with contextual similarity
Autorzy:: Biemann, C.
Riedl, M.
Powiązania:: https://bibliotekanauki.pl/articles/103919.pdf
Data publikacji:: 2013
Wydawca:: Polska Akademia Nauk. Instytut Podstaw Informatyki PAN
Tematy:: distributional semantics
lexical expansion
contextual similarity
lexical substitution
computational semantics
Opis:: A new metaphor of two-dimensional text for data-driven semantic modeling of natural language is proposed, which provides an entirely new angle on the representation of text: not only syntagmatic relations are annotated in the text, but also paradigmatic relations are made explicit by generating lexical expansions. We operationalize distributional similarity in a general framework for large corpora, and describe a new method to generate similar terms in context. Our evaluation shows that distributional similarity is able to produce high-quality lexical resources in an unsupervised and knowledge-free way, and that our highly scalable similarity measure yields better stores in a WordNet-based evaluation than previous measures for very large corpora. Evaluating on a lexical substitution task, we find that our contextualization method improves over a non-contextualized baseline across all parts of speech, and we show how the metaphor can be applied successfully to part-of-speech tagging. A number of ways to extend and improve the contextualization method within our Framework are discussed. As opposed to comparable approaches, our framework defines a model of lexical expansions in context that can generate the expansions as opposed to ranking a given list, and thus does not require existing lexical-semantic resources.
Źródło:: Journal of Language Modelling; 2013, 1, 1; 55-95
2299-856X
2299-8470
Pojawia się w:: Journal of Language Modelling
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Constructions with Lexical Integrity
Autorzy:: Asudeh, A.
Dalrymple, M.
Toivonen, I.
Powiązania:: https://bibliotekanauki.pl/articles/103943.pdf
Data publikacji:: 2013
Wydawca:: Polska Akademia Nauk. Instytut Podstaw Informatyki PAN
Tematy:: syntax
lexicon
semantics
constructions
Lexical Integrity
templates
Swedish
Dutch
LFG
Glue Semantics
Opis:: Construction Grammar holds that unpredictable form-meaning combinations are not restricted in size. In particular, there may be phrases that have particular meanings that are not predictable from the words that they contain, but which are nonetheless not purely idiosyncratic. In addressing this observation, some construction grammarians have not only weakened the word/phrase distinction, but also denied the lexicon/grammar distinction. In this paper, we consider the word/phrase and lexicon/grammar distinction in light of Lexical-Functional Grammar and its Lexical Integrity Principle. We show that it is not necessary to remove the word/phrase distinction or the lexicon/grammar distinction to capture constructional effects, although we agree that there are important generalizations involving constructions of all sizes that must be captured at both syntactic and semantic levels. We use LFG’s templates, bundles of grammatical descriptions, to factor out grammatical information in such a way that it can be invoked either by words or by construction-specific phrase structure rules. Phrase structure rules that invoke specific templates are thus the equivalent of phrasal constructions in our approach, but Lexical Integrity and the separation of word and phrase are preserved. Constructional effects are captured by systematically allowing words and phrases to contribute comparable information to LFG’s level of functional structure; this is just a generalization of LFG’s usual assumption that “morphology competes with syntax” (Bresnan, 2001).
Źródło:: Journal of Language Modelling; 2013, 1, 1; 1-54
2299-856X
2299-8470
Pojawia się w:: Journal of Language Modelling
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Complex predicates : an LFG+glue analysis
Autorzy:: Lowe, J. J.
Powiązania:: https://bibliotekanauki.pl/articles/103807.pdf
Data publikacji:: 2015
Wydawca:: Polska Akademia Nauk. Instytut Podstaw Informatyki PAN
Tematy:: complex predicates
Lexical Functional Grammar
argument structure
glue semantics
Opis:: In this paper I discuss weaknesses in the traditional LFG account of complex predicates and in the XLE implementation of the same. I argue that the concept of predicate composition in general, and the mechanisms required to achieve it, are problematic, but that the most problematic element is the concept of argument fusion. I show that a semantically-integrated account of complex predicate formation is possible within LFG+glue, an account which provides a simple and effective formalization of argument fusion, and which does not suffer from the weaknesses of traditional approaches.¹
Źródło:: Journal of Language Modelling; 2015, 3, 2; 413-462
2299-856X
2299-8470
Pojawia się w:: Journal of Language Modelling
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Mapping theory without argument structure
Autorzy:: Findlay, J. Y.
Powiązania:: https://bibliotekanauki.pl/articles/103823.pdf
Data publikacji:: 2016
Wydawca:: Polska Akademia Nauk. Instytut Podstaw Informatyki PAN
Tematy:: argument structure
mapping theory
argument linking
LFG
Lexical Functional Grammar
Glue Semantics
Opis:: Asudeh and Giorgolo (2012) offer an analysis of optional and derived arguments that does away with argument structure as a separate level of representation within the architecture of Lexical Functional Grammar in favour of encoding much of this information in a connected semantic structure. This simplifies the architecture in many ways, but leaves open the question of the mapping between thematic roles, arguments, and grammatical functions (traditionally explored under the umbrella of Lexical Mapping Theory; LMT: Bresnan and Kanerva 1989). In this paper, I offer a formalisation of these mapping relations, drawing on a modern reanalysis of traditional LMT (Kibort 2007), while also continuing Asudeh and Giorgolo’s (2012) quest to evacuate as much information as possible out of individual lexical entries and into cross-categorising templates (Dalrymple et al. 2004; Crouch et al. 2012).
Źródło:: Journal of Language Modelling; 2016, 4, 2; 293-338
2299-856X
2299-8470
Pojawia się w:: Journal of Language Modelling
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: Type Theories and Lexical Networks : using Serious Games as the basis for Multi-Sorted Typed Systems
Autorzy:: Chatzikyriakidis, S.
Lafourcade, M.
Ramadier, L.
Zarrouk, M.
Powiązania:: https://bibliotekanauki.pl/articles/103833.pdf
Data publikacji:: 2017
Wydawca:: Polska Akademia Nauk. Instytut Podstaw Informatyki PAN
Tematy:: lexical networks
JeuxDeMots
type theory
type ontologies
formal semantics
natural language inference
Opis:: In this paper, we show how a rich lexico-semantic network which Has been built using serious games, JeuxDeMots, can help us in grounding our semantic ontologies in doing formal semantics using rich or modern type theories (type theories within the tradition of Martin Löf). We discuss the issue of base types, adjectival and verbal types, hyperonymy/hyponymy relations as well as more advanced issues like homophony and polysemy. We show how one can take advantage of this wealth of lexical semantics in a formal compositional semantics framework. We argue that this is a way to sidestep the problem of deciding what the type ontology should look like once a move to a many sorted type system has been made. Furthermore, we show how this kind of information can be extracted from a lexico-semantic Network like JeuxDeMots and inserted into a proof-assistant like Coq in order to perform reasoning tasks.
Źródło:: Journal of Language Modelling; 2017, 5, 2; 229-272
2299-856X
2299-8470
Pojawia się w:: Journal of Language Modelling
Dostawca treści:: Biblioteka Nauki

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