Search Results for author: Gareth Tyson

Found 14 papers, 8 papers with code

Embedding Structured Dictionary Entries

no code implementations EMNLP (insights) 2020 Steven Wilson, Walid Magdy, Barbara McGillivray, Gareth Tyson

Previous work has shown how to effectively use external resources such as dictionaries to improve English-language word embeddings, either by manipulating the training process or by applying post-hoc adjustments to the embedding space.

Learning Word Embeddings Multi-Task Learning

Can ChatGPT Reproduce Human-Generated Labels? A Study of Social Computing Tasks

no code implementations20 Apr 2023 Yiming Zhu, Peixian Zhang, Ehsan-Ul Haq, Pan Hui, Gareth Tyson

We believe this work can open up new lines of analysis and act as a basis for future research into the exploitation of ChatGPT for human annotation tasks.

Sentiment Analysis Stance Detection

Lady and the Tramp Nextdoor: Online Manifestations of Economic Inequalities in the Nextdoor Social Network

no code implementations11 Apr 2023 Waleed Iqbal, Vahid Ghafouri, Gareth Tyson, Guillermo Suarez-Tangil, Ignacio Castro

We collect 2. 6 Million posts from 64, 283 neighborhoods in the United States and 3, 325 neighborhoods in the United Kingdom, to examine whether online discourse reflects the income and income inequality of a neighborhood.

Twitter Dataset for 2022 Russo-Ukrainian Crisis

1 code implementation6 Mar 2022 Ehsan-Ul Haq, Gareth Tyson, Lik-Hang Lee, Tristan Braud, Pan Hui

Such information sharing campaigns can range from spreading factual information to propaganda and misinformation.

Misinformation

Mate! Are You Really Aware? An Explainability-Guided Testing Framework for Robustness of Malware Detectors

1 code implementation19 Nov 2021 Ruoxi Sun, Minhui Xue, Gareth Tyson, Tian Dong, Shaofeng Li, Shuo Wang, Haojin Zhu, Seyit Camtepe, Surya Nepal

We find that (i) commercial antivirus engines are vulnerable to AMM-guided test cases; (ii) the ability of a manipulated malware generated using one detector to evade detection by another detector (i. e., transferability) depends on the overlap of features with large AMM values between the different detectors; and (iii) AMM values effectively measure the fragility of features (i. e., capability of feature-space manipulation to flip the prediction results) and explain the robustness of malware detectors facing evasion attacks.

Analyzing Temporal Relationships between Trending Terms on Twitter and Urban Dictionary Activity

no code implementations15 May 2020 Steven R. Wilson, Walid Magdy, Barbara McGillivray, Gareth Tyson

However, it is unclear exactly how activity on this platform relates to larger conversations happening elsewhere on the web, such as discussions on larger, more popular social media platforms.

Urban Dictionary Embeddings for Slang NLP Applications

no code implementations LREC 2020 Steven Wilson, Walid Magdy, Barbara McGillivray, Kiran Garimella, Gareth Tyson

The choice of the corpus on which word embeddings are trained can have a sizable effect on the learned representations, the types of analyses that can be performed with them, and their utility as features for machine learning models.

Clustering Sarcasm Detection +4

A First Instagram Dataset on COVID-19

3 code implementations25 Apr 2020 Koosha Zarei, Reza Farahbakhsh, Noel Crespi, Gareth Tyson

We believe that this contribution will help the community to better understand the dynamics behind this phenomenon in Instagram, as one of the major social media.

Social and Information Networks

Characterising User Content on a Multi-lingual Social Network

no code implementations23 Apr 2020 Pushkal Agarwal, Kiran Garimella, Sagar Joglekar, Nishanth Sastry, Gareth Tyson

In the case of images containing text that cross language barriers, we see that language translation is used to widen the accessibility.

Clustering

Challenges in the Decentralised Web: The Mastodon Case

1 code implementation12 Sep 2019 Aravindh Raman, Sagar Joglekar, Emiliano De Cristofaro, Nishanth Sastry, Gareth Tyson

The Decentralised Web (DW) has recently seen a renewed momentum, with a number of DW platforms like Mastodon, Peer-Tube, and Hubzilla gaining increasing traction.

Networking and Internet Architecture Cryptography and Security Computers and Society

WhatsApp, Doc? A First Look at WhatsApp Public Group Data

2 code implementations4 Apr 2018 Kiran Garimella, Gareth Tyson

In this dataset paper we describe our work on the collection and analysis of public WhatsApp group data.

Social and Information Networks

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