scholarly journals Automatically Representing TExt Meaning via an Interlingua-based System (ARTEMIS). A further step towards the computational representation of RRG

2017 ◽  
Vol 1 (1) ◽  
pp. 61 ◽  
Author(s):  
Ricardo Mairal-Usón ◽  
Francisco Cortés-Rodríguez

Within the framework of FUNK Lab – a virtual laboratory for natural language processing inspired on a functionally-oriented linguistic theory like Role and Reference Grammar-, a number of computational resources have been built dealing with different aspects of language and with an application in different scientific domains, i.e. terminology, lexicography, sentiment analysis, document classification, text analysis, data mining etc. One of these resources is ARTEMIS (<span style="text-decoration: underline;">A</span>utomatically <span style="text-decoration: underline;">R</span>epresenting <span style="text-decoration: underline;">TE</span>xt <span style="text-decoration: underline;">M</span>eaning via an <span style="text-decoration: underline;">I</span>nterlingua-Based <span style="text-decoration: underline;">S</span>ystem), which departs from the pioneering work of Periñán-Pascual (2013) and Periñán-Pascual &amp; Arcas (2014).  This computational tool is a proof of concept prototype which allows the automatic generation of a conceptual logical structure (CLS) (cf. Mairal-Usón, Periñán-Pascual and Pérez 2012; Van Valin and Mairal-Usón 2014), that is, a fully specified semantic representation of an input text on the basis of a reduced sample of sentences. The primary aim of this paper is to develop the syntactic rules that form part of the computational grammar for the representation of simple clauses in English. More specifically, this work focuses on the format of those syntactic rules that account for the upper levels of the RRG Layered Structure of the Clause (LSC), that is, the <em>core</em> (and the level-1 construction associated with it), the <em>clause</em> and the <em>sentence </em>(Van Valin 2005). In essence, this analysis, together with that in Cortés-Rodríguez and Mairal-Usón (2016), offers an almost complete description of the computational grammar behind the LSC for simple clauses.

2019 ◽  
Vol 17 ◽  
pp. 149
Author(s):  
María del Carmen Fumero-Pérez ◽  
Ana Díaz-Galán

ARTEMIS (Automatically Representing Text Meaning via an Interlingua-based System), is a natural language processing device, whose ultimate aim is to be able to understand natural language fragments and arrive at their syntactic and semantic representation. Linguistically, this parser is founded on two solid linguistic theories: the Lexical Constructional Model and Role and Reference Grammar. Although the rich semantic representations and the multilingual character of Role and Reference Grammar make it suitable for natural language understanding tasks, some changes to the model have proved necessary in order to adapt it to the functioning of the ARTEMIS parser. This paper will deal with one of the major modifications that Role and Reference Grammar had to undergo in this process of adaptation, namely, the substitution of the operator projection for feature-based structures, and how this will influence the description of function words in ARTEMIS, since they are strongly responsible for the encoding of the grammatical information which in Role and Reference Grammar is included in the operators. Currently, ARTEMIS is being implemented for the controlled natural language ASD-STE100, the Aerospace and Defence Industries Association of Europe Simplified Technical English, which is an international specification for the preparation of technical documentation in a controlled language. This controlled language is used in the belief that its simplified nature makes it a good corpus to carry out a preliminary testing of the adequacy of the parser. In this line, the aim of this work is to create a catalogue of function words in ARTEMIS for ASD-STE100, and to design the lexical rules necessary to parse the simple sentence and the referential phrase in this controlled language.


2007 ◽  
Vol 5 ◽  
pp. 51-79
Author(s):  
Luis González

Barker (1998) argues that since the referent of an -ee noun can be an indirect object, a direct object, a prepositional object, or a subject, -ee nouns cannot be described as a syntactic natural class. Portero Muñoz (2003) concurs and offers a semantic analysis based on Logical Structure (LS) in the framework of Role and Reference Grammar (RRG). This article proposes that RRG’s macroroles (Actor and Undergoer) can be derived with two entailments and without any need for LS. Its analysis improves Portero Muñoz’s, presenting additional evidence that subjects that allow -ee noun formation are Undergoers. It also explains why most -ee nouns are direct objects in spite of the fact that the suffi Xoriginated as a referent for indirect objects. Finally, it offers an explanation for nouns like amputee, pluckee, twistee, benefactee, malefactee, biographee, catapultee, razee, standee, attendee.


2007 ◽  
Vol 5 ◽  
pp. 137-172 ◽  
Author(s):  
Ricardo Mairal-Usón ◽  
Pamela Faber

Within the context of the Lexical Constructional Model, which provides a comprehensive account of the relationship between syntax and all facets on meaning construction, this paper is concerned with one of the major representational modules of the model, viz. a lexical template. It is claimed that a lexical template consists of a semantic specification plus a logical structure. The logical structure formalism is constructed on the basis of Aktionsart distinctions proposed in Role and Reference Grammar (Van Valin & Lapolla, 1997; Van Valin, 2005). Aktionsart regularities are captured by the external variables of the template, specified in Roman characters, and by a set of high-level elements of structure that function as semantic primitives. Lexical templates also contain internal variables, marked with Arabic numerals, and formally expressed in terms of a catalogue of lexical functions. These variables capture world-knowledge elements that relate in a way specific to the predicate defined by the lexical template. In order to test the viability of lexical templates, a detailed analysis of a set of verbs within the lexical domain of cognition is included.


2015 ◽  
Vol 13 (1) ◽  
pp. 1-27
Author(s):  
Ricardo Mairal-Usón

FunGramKB is a multipurpose lexico-conceptual knowledge base for natural language processing systems, and more particularly, for natural language understanding. The linguistic layer of this knowledge-engineering project is grounded in compatible aspects of two linguistic accounts, namely, Role and Reference Grammar (RRG) and the Lexical Constructional Model (LCM). RRG, although originally a lexicalist approach, has recently incorporated constructional configurations into its descriptive and explanatory apparatus. The LCM has sought to understand from its inception the factors that constrain lexical-constructional integration. Within this theoretical context, this paper discusses the format of lexical entries, highly inspired in RRG proposals, and of constructional schemata, which are organized according to the descriptive levels supplied by the LCM. Both lexical and constructional structure is represented by means of Attribute Value Matrices (AVMs). Thus, the lexical and grammatical levels of FunGramKB are the focus of our attention here. Additionally, the need for a conceptualist approach to meaning construction is highlighted throughout our discussion.


2021 ◽  
Vol 9 (2) ◽  
pp. 581-597
Author(s):  
Ghani Rahman ◽  
Abdul Hamid ◽  
Laraib Rahat ◽  
Arshad Ali Khan ◽  
Abid Karam

Purpose of the study: The present study analyses the interplay of semantics, syntax and pragmatics in Pashto clauses containing verbal clitics (VC) in the light of the Role and Reference framework. It particularly focuses on the relational aspect of the clause. The lexical representation of the predicating elements is presented. Methodology: The four projections of a Pashto clause i.e., constituent projection, operator projection, logical structure projection and focus structure projection are analyzed in the Role and Reference Grammar theoretical framework. Main Findings: The findings of the study show that VCs are different from both agreement markers and pronouns with some shared properties. A linking algorithm is proposed for Pashto from semantics to syntax and syntax-to-semantics based on the activation level of the referents. Applications of this study: The study analyses the discourse pragmatic conditions responsible for the occurrence of VCs in Pashto clause terms of role and reference grammar. The novelty of this study: The study has novelty in the sense that it describes the structure of the Pashto clause from a discourse pragmatic perspective which has never been investigated in previous studies. The study shows the movement is triggered by both actor (in present) and undergoer (in past) along with syntactic neutralization. The VCs are different from both agreement markers and pronouns with some shared properties identifying dative arguments like arguments and causing doubling like agreement markers and so, are linked to an ‘agreement index’ node.  


Author(s):  
Francisco J. Cortés Rodriguez

The kernel of the semantic representation of a predicate in Role and Reference Grammar (RRG) is based on its characterization in terms of an Aktionsart typology based on Vendler’s (1957) classes plus some additional elements from Smith (1997) and Dowty (1979). This means that event structures are mainly considered a lexical phenomenon pertaining to predicates, and only occasionally higher predicational structures are considered in event construction. Even though this approach is adequate to a great extent, there are still some problems in the approach taken in RRG. The most significant drawback is that non-lexical aspects appear intermingled with predicate-only features, which leads to misinterpretations and misclassifications of predicates. Consequently, it sees more sensible to bring a functional model of grammar like RRG to a compromise position and, thus, consider in what ways different units identified as belonging to the different layers in RRG’s syntactic projections ‘conspire’ in the final aspectual characterization of events. In this line, this paper will propose a classification of aspectual features in terms of the levels found in the functional projection of the clause as devised in RRG, namely the Predicate Level (the domain of Aktionsart typology), the Nucleus (where morphological aspect has scope) and the Core (the locus for what will be described as ‘aspectuality’ features).


Author(s):  
Kata Balogh ◽  
Rainer Osswald

AbstractThe verbal particle in Hungarian raises a number of intriguing issues for any theory of the syntax-semantics interface. In this article, we aim at a formal account of the semantic contribution of various verbal particles in Hungarian and we show how the semantic representation of the clause can be compositionally derived. We will concentrate on the four frequent particles meg-, le-, el- and fel-. Our approach makes use of a formalized version of Role and Reference Grammar and the framework of decompositional frame semantics. In particular, we give a formal representation of the boundary-setting function of the verbal particle in terms of decompositional frames which builds on a scalar change analysis. We furthermore analyze the interaction of the particle with resultative adjectives and provide a formal model of how their syntactic representations drive their frame-semantic composition.


Author(s):  
Marta González Orta

The aim of this paper is to motivate the syntactic and morphological behaviour of the Old English verbs which share the core meaning of 'to remember', 'to emit a smell', 'to produce a sound' and 'to speak' from their semantic structure. Firstly, as a result of the analysis of these verb subclasses, I will propose a subclass-based lexical template for each lexical subclass. Within the Lexical Grammar Model, lexical templates are conceived as lexical representations where meaning description is encapsulated and interacts with the syntactic behaviour of lexical units. In order to construct a lexical template, Role and Reference Grammar logical structures will be complemented by a semantic decomposition which will define different lexical (sub-)classes. Secondly, the Lexical Template Modelling Process will stipulate the linking between the syntactic and semantic representation of these verbs. This process will establish the lexical rules that account for the mapping between the different semantic constructions and the syntactic structures and alternations in which these verbs participate and the lexical templates codified by these verb subclasses. As a result, a catalogue of the syntactico-semantic constructions exhibited by these Old English verbal predicates will be provided.


2019 ◽  
Vol 14 (1) ◽  
pp. 131
Author(s):  
Ana Elvira Ojanguren López

<p>This article aims at proposing a lexical representation for a set of English verbs of action. The analysis is carried out on the grounds of Role and Reference Grammar (RRG) and includes aspects like <em>Aktionsart </em>type, macrorole and syntactic function assignment, linking, as well as nexus and juncture. Against this background, the meaning components of the verbs in question are analysed, in such a way that a logical structure based on a lexical representation is defined for each verbal class. Conclusions fall on both the descriptive and the theoretical side. From the descriptive point of view, <em>Fail </em>and <em>Try </em>verbs constitute a unified verbal class as regards their meaning components and grammatical behaviour and, thus, they are represented by means of a unified logical structure. Conversely, <em>Prevent </em>verbs and <em>Forbid </em>verbs require different logical structures that account for their divergent grammatical behaviour, corresponding to the Causative Activity and Causative Achievement <em>Aktionsart </em>types respectively. On the theoretical side, the logical structures of <em>End </em>verbs, <em>Fail </em>verbs, <em>Try </em>verbs and <em>Prevent </em>verbs stick to the canonical representations of RRG, while those of <em>Hinder </em>verbs and <em>Refrain </em>verbs require complex predicates and complex logical structures which allow to incorporate extra meaning components and to combine different <em>Aktionsart </em>types.</p>


Sign in / Sign up

Export Citation Format

Share Document