Search Results for author: Valeria de Paiva

Found 30 papers, 6 papers with code

Extending Wordnet to Geological Times

no code implementations GWC 2018 Henrique Muniz, Fabricio Chalub, Alexandre Rademaker, Valeria de Paiva

This paper describes work extending Princeton WordNet to the domain of geological texts, associated with the time periods of the geological eras of the Earth History.

An overview of Portuguese WordNets

no code implementations GWC 2016 Valeria de Paiva, Livy Real, Hugo Gonçalo Oliveira, Alexandre Rademaker, Cláudia Freitas, Alberto Simões

Semantic relations between words are key to building systems that aim to understand and manipulate language.

Towards a Brazilian History Knowledge Graph

no code implementations28 Mar 2024 Valeria de Paiva, Alexandre Rademaker

This short paper describes the first steps in a project to construct a knowledge graph for Brazilian history based on the Brazilian Dictionary of Historical Biographies (DHBB) and Wikipedia/Wikidata.

MathGloss: Building mathematical glossaries from text

no code implementations21 Nov 2023 Lucy Horowitz, Valeria de Paiva

MathGloss is a project to create a knowledge graph (KG) for undergraduate mathematics from text, automatically, using modern natural language processing (NLP) tools and resources already available on the web.

Math

Extracting Mathematical Concepts with Large Language Models

no code implementations29 Aug 2023 Valeria de Paiva, Qiyue Gao, Pavel Kovalev, Lawrence S. Moss

Where our study diverges from previous work is in (1) providing a more thorough analysis of what makes mathematical term extraction a difficult problem to begin with; (2) paying close attention to inter-annotator disagreements; (3) providing a set of guidelines which both human and machine annotators could use to standardize the extraction process; (4) introducing a new annotation tool to help humans with ATE, applicable to any mathematical field and even beyond mathematics; (5) using prompts to ChatGPT as part of the extraction process, and proposing best practices for such prompts; and (6) raising the question of whether ChatGPT could be used as an annotator on the same level as human experts.

Term Extraction

Parmesan: mathematical concept extraction for education

no code implementations13 Jul 2023 Jacob Collard, Valeria de Paiva, Eswaran Subrahmanian

However, mathematics is used in a wide variety of fields and multidisciplinary research in many different domains often relies on an understanding of mathematical concepts.

Definition Extraction Entity Linking +1

Extracting Blockchain Concepts from Text

no code implementations7 May 2023 Rodrigo Veiga, Markus Endler, Valeria de Paiva

Blockchains provide a mechanism through which mutually distrustful remote parties can reach consensus on the state of a ledger of information.

Navigate

Extracting Mathematical Concepts from Text

no code implementations COLING (WNUT) 2022 Jacob Collard, Valeria de Paiva, Brendan Fong, Eswaran Subrahmanian

We investigate different systems for extracting mathematical entities from English texts in the mathematical field of category theory as a first step for constructing a mathematical knowledge graph.

XplaiNLI: Explainable Natural Language Inference through Visual Analytics

no code implementations COLING 2020 Aikaterini-Lida Kalouli, Rita Sevastjanova, Valeria de Paiva, Richard Crouch, Mennatallah El-Assady

Advances in Natural Language Inference (NLI) have helped us understand what state-of-the-art models really learn and what their generalization power is.

Natural Language Inference

Hy-NLI: a Hybrid system for Natural Language Inference

2 code implementations COLING 2020 Aikaterini-Lida Kalouli, Richard Crouch, Valeria de Paiva

Despite the advances in Natural Language Inference through the training of massive deep models, recent work has revealed the generalization difficulties of such models, which fail to perform on adversarial datasets with challenging linguistic phenomena.

Natural Language Inference

Deriving Theorems in Implicational Linear Logic, Declaratively

no code implementations22 Sep 2020 Paul Tarau, Valeria de Paiva

Keywords: combinatorial generation of provable formulas of a given size, intuitionistic and linear logic theorem provers, theorems of the implicational fragment of propositional linear intuitionistic logic, Curry-Howard isomorphism, efficient generation of linear lambda terms in normal form, Prolog programs for lambda term generation and theorem proving.

Automated Theorem Proving

Composing Noun Phrase Vector Representations

no code implementations WS 2019 Aikaterini-Lida Kalouli, Valeria de Paiva, Richard Crouch

First, we propose that the semantic and not the syntactic contribution of each component of a noun phrase should be considered, so that the resulting composed vectors express more of the phrase meaning.

Word Embeddings

GKR: Bridging the Gap between Symbolic/structural and Distributional Meaning Representations

1 code implementation WS 2019 Aikaterini-Lida Kalouli, Richard Crouch, Valeria de Paiva

This work focuses on an example of the third and less studied approach: it extends the Graphical Knowledge Representation (GKR) to include distributional features and proposes a division of semantic labour between the distributional and structural/symbolic features.

Explaining Simple Natural Language Inference

1 code implementation WS 2019 Aikaterini-Lida Kalouli, Annebeth Buis, Livy Real, Martha Palmer, Valeria de Paiva

The vast amount of research introducing new corpora and techniques for semi-automatically annotating corpora shows the important role that datasets play in today{'}s research, especially in the machine learning community.

Natural Language Inference

The ILLTP Library for Intuitionistic Linear Logic

1 code implementation15 Apr 2019 Carlos Olarte, Valeria de Paiva, Elaine Pimentel, Giselle Reis

In order to enhance the set of problems in our library, we apply the three provability-preserving translations to the propositional benchmarks in the ILTP Library.

Logic in Computer Science

Linguistic Legal Concept Extraction in Portuguese

no code implementations22 Oct 2018 Alessandra Cid, Alexandre Rademaker, Bruno Cuconato, Valeria de Paiva

This work investigates legal concepts and their expression in Portuguese, concentrating on the "Order of Attorneys of Brazil" Bar exam.

Ethics Multiple-choice

Dialectica Categories for the Lambek Calculus

no code implementations21 Jan 2018 Valeria de Paiva, Harley Eades III

We revisit the old work of de Paiva on the models of the Lambek Calculus in dialectica models making sure that the syntactic details that were sketchy on the first version got completed and verified.

Logic in Computer Science

Proceedings of the LexSem+Logics Workshop 2016

no code implementations14 Aug 2016 Steven Neale, Valeria de Paiva, Arantxa Otegi, Alexandre Rademaker

Lexical semantics continues to play an important role in driving research directions in NLP, with the recognition and understanding of context becoming increasingly important in delivering successful outcomes in NLP tasks.

Entity Disambiguation Open Information Extraction +3

Semantic Links for Portuguese

no code implementations LREC 2016 Fabricio Chalub, Livy Real, Alex Rademaker, re, Valeria de Paiva

This paper describes work on incorporating Princenton{'}s WordNet morphosemantics links to the fabric of the Portuguese OpenWordNet-PT.

NomLex-PT: A Lexicon of Portuguese Nominalizations

no code implementations LREC 2014 Valeria de Paiva, Livy Real, Alex Rademaker, re, Gerard de Melo

This paper presents NomLex-PT, a lexical resource describing Portuguese nominalizations.

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