5 documents found, page 1 of 1
Visual representations of temporal relations between events and time expression...
Amorim, Evelin; Leal, António; Yu, Nana; Silvano, Purificação; Jorge, AlípioHigh-quality annotation is essential for the ef- fective predictions of machine learning mod- els. When annotations are dense, achieving accurate human labeling can be challenging since the most used annotation tools present an overloaded visualization of labels. Thus, we present Vitra (Visualizer of temporal relation annotations), a tool designed for viewing anno- tations made in corpora, specifically focusing...
Leveraging LLMs to improve human annotation efficiency with INCEpTION
Cunha, Luís Filipe; Yu, Nana; Silvano, Purificação; Campos, Ricardo; Jorge, AlípioManual text annotation is a complex and time-consuming task. However, recent advancements demonstrate that such a task can be accelerated with automated pre-annotation. In this paper, we present a methodology to improve the efficiency of manual text annotation by leveraging LLMs for text pre-annotation. For this purpose, we train a BERT model for a token classification task and integrate it into the INCEpTION a...
Leituras semânticas de preposições de origem desde e a partir de em frases em P...
Yu, NanaO objetivo deste trabalho é identificar as leituras de duas preposições de origem, desde e a partir de, em frases retiradas do corpus jornalístico Natura/Minho. Foram identificadas as diversas leituras (nomeadamente, temporais e espaciais) que os SP introduzidos por essas duas preposições podem ter, assim como os contextos em que surgem, especificamente em leituras espaciais. A análise quantitativa permitiu con...
Untangling a web of temporal relations in news articles
Silvano, Maria da Purificação; Amorim, Evelin; Leal, António; Cantante, Inês; Jorge, Alípio; Campos, Ricardo; Yu, NanaTemporal reasoning has been the focus of several studies during the past years, both in linguistics and computational studies. Although advances on this topic are undeniable, there are still improvements to be made and new avenues to pursue. One relevant problem concerns the temporal ordering of the events, particularly asserting and representing how events are temporally related and how the story told in the n...
Overview of the CLEF-2024 CheckThat! Lab Task 3 on persuasion techniques
Piskorski, Jakub; Jorge, Alípio; Silvano, Maria da Purificação; Guimarães, Nuno; Pacheco, Ana Filipa; Yu, NanaWe present an overview of CheckThat! Lab's 2024 Task 3, which focuses on detecting 23 persuasion techniques at the text-span level in online media. The task covers five languages, namely, Arabic, Bulgarian, English, Portuguese, and Slovene, and highly-debated topics in the media, e.g., the Isreali-Palestian conflict, the Russia- Ukraine war, climate change, COVID-19, abortion, etc. A total of 23 teams registere...