Towards a Semantic Network Enriched with a Variety of Semantic Relations
Towards a Semantic Network Enriched with a Variety of Semantic Relations
Author(s): Svetla Koeva, Tsvetana Dimitrova, Dimitar Hristov, Hristina Kukova, Svetlozara Leseva, Valentina Stefanova, Ivelina Stoyanova, Maria Todorova
Contributor(s): Svetla Koeva (Editor)
Subject(s): Language studies, Language and Literature Studies, Theoretical Linguistics, Applied Linguistics, Syntax, Lexis, Semantics, Comparative Linguistics, Cognitive linguistics, Computational linguistics
Published by: Институт за български език „Проф. Любомир Андрейчин“, Българска академия на науките
Keywords: semantics; predicate-argument structure; language resources; WordNet; FrameNet; conceptual description; verb semantics; linked resources; conceptual structure; selectional preferences; VerbNet; lexical-semantic resources; frame semantics; syntax;
Summary/Abstract: This volume features three chapters and a preface presenting the work on the project "Towards a Semantic Network Enriched with a Variety of Semantic Relations" and its results – the integration of knowledge from various semantic resources for the purpose of enriching the semantic description of verbs. The authors are researchers at the Department of Computational Linguistics at the Institute for Bulgarian Language at the Bulgarian Academy of Sciences.
- Print-ISBN-13: 978-619-245-057-1
- Page Count: 122
- Publication Year: 2020
- Language: English
Semantic relations and conceptual frames
Semantic relations and conceptual frames
(Semantic relations and conceptual frames)
- Author(s):Svetla Koeva
- Language:English
- Subject(s):Language studies, Language and Literature Studies, Theoretical Linguistics, Applied Linguistics, Lexis, Semantics, Comparative Linguistics, Cognitive linguistics, Computational linguistics
- Page Range:7-20
- No. of Pages:14
- Keywords:semantics; predicate-argument structure; language resources; WordNet
- Summary/Abstract:There are many rich semantic resources (mainly for English but also for other languages) that include different types of semantic information: WordNet, FrameNet, VerbNet, PropBank, Ontonotes, PDEV, Yago, BabelNet, VerbAtlas, SynSemClass, among others. The objectives of research presented in the book “Towards a Semantic Network Enriched with a Variety of Relations” are to expand the WordNet structure with an extended network of conceptual frames that represent verb predicate-argument semantic relations in a generalised way. Our assumption is that a relatively small number of conceptual frames which define predicate-argument relation pairs (classified with respect to an ontology of semantic classes) introduce a large number of semantic relations.
Beyond lexical and semantic resources: Linking WordNet with FrameNet and enhancing synsets with conceptual frames
Beyond lexical and semantic resources: Linking WordNet with FrameNet and enhancing synsets with conceptual frames
(Beyond lexical and semantic resources: Linking WordNet with FrameNet and enhancing synsets with conceptual frames)
- Author(s):Svetlozara Leseva, Ivelina Stoyanova
- Language:English
- Subject(s):Language studies, Language and Literature Studies, Theoretical Linguistics, Applied Linguistics, Lexis, Semantics, Comparative Linguistics, Cognitive linguistics, Computational linguistics
- Page Range:21-48
- No. of Pages:28
- Keywords:semantics; WordNet; FrameNet; conceptual description; verb semantics; linked resources; frame-to-synset mapping
- Summary/Abstract:This paper sums up the research and findings made towards the linking of two large lexical semantic resources – WordNet and FrameNet (their verb inventory in particular) – by combining the rich conceptual description provided in FrameNet with the vast lexical coverage and structured relational representation in WordNet. The underlying idea is not just to map the two resources to the extent that their overlap allows, but to expand the mapping in such a way as to assign a FrameNet frame to as many synsets as possible, going far beyond the lexical correspondence in the two resources. We suggest that as a first approximation this mapping be implemented by using the relation of inheritance from a hypernym to a hyponym in WordNet to transfer the frame assigned to the parent synset from the parent to the child synset (inheritance based mapping), and then refine the obtained mapping through a number of procedures. The paper is divided in two large parts. In the first part we explore the relation of inheritance and other semantic relations as represented in WordNet and FrameNet and how they correspond to each other when the resources are aligned from a theoretical perspective. In addition, we provide a discussion of the implications of these observations with respect to the enhancement of the two resources through the definition of new relations and the detailisation of conceptual frames. The second part of the paper outlines the procedures defined for the validation of the consistency of the inheritance-based mapping of frames and the extension of its coverage which exploit the lexical information in WordNet (synset literals, synset glosses, etc.) and FrameNet (language units and their definitions, the names of the frames, etc.), the structure of the two resources and the systematic relations between synsets in WordNet and between frames in FrameNet. We present a case study on causativity, a relation which provides enhancement complementary to the one using hierarchical relations, by means of linking in a systematic way large parts of the lexicon. We show how consistency checks and denser relations may be implemented on the basis of this relation. In addition, we propose new frames based on causative–inchoative correspondences and in conclusion touch on the possibilities for defining new frames based on the types of specialisation that take place from parent to child synset.
Putting pieces together: Predicate-argument relations and selectional preferences
Putting pieces together: Predicate-argument relations and selectional preferences
(Putting pieces together: Predicate-argument relations and selectional preferences)
- Author(s):Svetlozara Leseva, Ivelina Stoyanova, Maria Todorova, Hristina Kukova
- Language:English
- Subject(s):Language studies, Language and Literature Studies, Theoretical Linguistics, Applied Linguistics, Lexis, Semantics, Comparative Linguistics, Cognitive linguistics, Computational linguistics
- Page Range:49-86
- No. of Pages:38
- Keywords:conceptual structure; predicate-argument relations; selectional preferences; Frame semantics; WordNet; VerbNet; FrameNet
- Summary/Abstract:This paper presents the work on enhancing WordNet with semantic relations between verb synsets and classes of noun synsets corresponding to major participants in the predicates’ conceptual structure. We first provide the theoretical background and motivation for the study and discuss the integration of the three complementary semantic resources – WordNet, VerbNet and FrameNet – which we then use to the end of devising a framework for enriching the relational structure of WordNet with a system of predicate-argument and predicate-adjunct relations. We pay particular attention to the analysis of the relations of inheritance between conceptual frames in FrameNet and between frame elements (the elements of these conceptual frames) which results in the elaboration of a hierarchy that is then translated as a set of relations and relation subtypes between predicates and the main elements in their conceptual structure. The conceptual frames with their corresponding frame elements and selectional restrictions are assigned to verb synsets in WordNet. We then go on to propose a typology of selectional preferences that verbs impose on the nouns they combine with. Using restrictions that have already been defined in FrameNet and VerbNet as well as other semantic information from the three resources, we propose a unified and extended set of selectional preferences represented as sets of WordNet classes and (sub)trees in the WordNet structure. The model is illustrated by a case study of the relation Theme and its subtypes.
Towards conceptual frames
Towards conceptual frames
(Towards conceptual frames)
- Author(s):Svetla Koeva, Tsvetana Dimitrova, Valentina Stefanova, Dimitar Hristov
- Language:English
- Subject(s):Language studies, Language and Literature Studies, Theoretical Linguistics, Applied Linguistics, Lexis, Semantics, Comparative Linguistics, Cognitive linguistics, Computational linguistics
- Page Range:87-120
- No. of Pages:34
- Keywords:lexical-semantic resources; WordNet; Pattern Dictionary of English verbs; frame semantics; syntax
- Summary/Abstract:This study presents an effort in enriching the Princeton WordNet with information from the verb patterns (predicate–argument structures) from another resource – the Pattern Dictionary of English Verbs (PDEV) – and the semantic types from the Corpus Pattern Ontology (CPA) which describe the arguments of these patterns. The PDEV verb patterns were automatically mapped to the WordNet sentence frames thus adding information about the character of the arguments. The resulting patterns are conceptual frames whose arguments were specified for a set of lexical units – the semantic types assigned to WordNet noun synsets.