no code implementations • 26 Mar 2024 • Toyin Aguda, Suchetha Siddagangappa, Elena Kochkina, Simerjot Kaur, Dongsheng Wang, Charese Smiley, Sameena Shah
Collecting labeled datasets in finance is challenging due to scarcity of domain experts and higher cost of employing them.
1 code implementation • 6 Dec 2023 • Talia Tseriotou, Ryan Sze-Yin Chan, Adam Tsakalidis, Iman Munire Bilal, Elena Kochkina, Terry Lyons, Maria Liakata
We present an open-source, pip installable toolkit, Sig-Networks, the first of its kind for longitudinal language modelling.
no code implementations • 28 Feb 2023 • Runcong Zhao, Miguel Arana-Catania, Lixing Zhu, Elena Kochkina, Lin Gui, Arkaitz Zubiaga, Rob Procter, Maria Liakata, Yulan He
In this demo, we introduce a web-based misinformation detection system PANACEA on COVID-19 related claims, which has two modules, fact-checking and rumour detection.
1 code implementation • FEVER (ACL) 2022 • John Dougrez-Lewis, Elena Kochkina, M. Arana-Catania, Maria Liakata, Yulan He
Work on social media rumour verification utilises signals from posts, their propagation and users involved.
1 code implementation • 11 May 2022 • Rabab Alkhalifa, Elena Kochkina, Arkaitz Zubiaga
Therefore an ability to predict a model's ability to persist over time can help design models that can be effectively used over a longer period of time.
no code implementations • NAACL 2022 • M. Arana-Catania, Elena Kochkina, Arkaitz Zubiaga, Maria Liakata, Rob Procter, Yulan He
The dataset construction includes work on retrieval techniques and similarity measurements to ensure a unique set of claims.
1 code implementation • 27 Aug 2021 • Rabab Alkhalifa, Elena Kochkina, Arkaitz Zubiaga
We propose a novel approach to mitigate this performance drop, which is based on temporal adaptation of the word embeddings used for training the stance classifier.
no code implementations • EACL 2021 • Gabriele Pergola, Elena Kochkina, Lin Gui, Maria Liakata, Yulan He
Biomedical question-answering (QA) has gained increased attention for its capability to provide users with high-quality information from a vast scientific literature.
no code implementations • 30 Aug 2020 • Rabab Alkhalifa, Theodore Yoong, Elena Kochkina, Arkaitz Zubiaga, Maria Liakata
The purpose of this task is to determine the check-worthiness of tweets about COVID-19 to identify and prioritise tweets that need fact-checking.
1 code implementation • ACL 2020 • Elena Kochkina, Maria Liakata
The inability to correctly resolve rumours circulating online can have harmful real-world consequences.
1 code implementation • 16 Mar 2020 • Harish Tayyar Madabushi, Elena Kochkina, Michael Castelle
The automatic identification of propaganda has gained significance in recent years due to technological and social changes in the way news is generated and consumed.
no code implementations • WS 2019 • Harish Tayyar Madabushi, Elena Kochkina, Michael Castelle
The automatic identification of propaganda has gained significance in recent years due to technological and social changes in the way news is generated and consumed.
no code implementations • SEMEVAL 2019 • Genevieve Gorrell, Elena Kochkina, Maria Liakata, Ahmet Aker, Arkaitz Zubiaga, Kalina Bontcheva, Leon Derczynski
Rumour verification is characterised by the need to consider evolving conversations and news updates to reach a verdict on a rumour{'}s veracity.
no code implementations • 18 Sep 2018 • Genevieve Gorrell, Kalina Bontcheva, Leon Derczynski, Elena Kochkina, Maria Liakata, Arkaitz Zubiaga
This is the proposal for RumourEval-2019, which will run in early 2019 as part of that year's SemEval event.
no code implementations • COLING 2018 • Elena Kochkina, Maria Liakata, Arkaitz Zubiaga
We propose a multi-task learning approach that allows joint training of the main and auxiliary tasks, improving the performance of rumour verification.
no code implementations • 6 Dec 2017 • Arkaitz Zubiaga, Elena Kochkina, Maria Liakata, Rob Procter, Michal Lukasik, Kalina Bontcheva, Trevor Cohn, Isabelle Augenstein
We show that sequential classifiers that exploit the use of discourse properties in social media conversations while using only local features, outperform non-sequential classifiers.
1 code implementation • SEMEVAL 2017 • Elena Kochkina, Maria Liakata, Isabelle Augenstein
This paper describes team Turing's submission to SemEval 2017 RumourEval: Determining rumour veracity and support for rumours (SemEval 2017 Task 8, Subtask A).
Ranked #1 on Stance Detection on RumourEval
no code implementations • COLING 2016 • Arkaitz Zubiaga, Elena Kochkina, Maria Liakata, Rob Procter, Michal Lukasik
Rumour stance classification, the task that determines if each tweet in a collection discussing a rumour is supporting, denying, questioning or simply commenting on the rumour, has been attracting substantial interest.