Helen Z. Margetts

According to our database, Helen Z. Margetts authored at least 29 papers between 1993 and 2024.

Collaborative distances:

• Dijkstra number of four.
• Erdős number of four.

2024

Behind the Deepfake: 8% Create; 90% Concerned. Surveying public exposure to and perceptions of deepfakes in the UK.

Tvesha Sippy, Florence Enock, Jonathan Bright, Helen Z. Margetts

CoRR, 2024

Evidence of a log scaling law for political persuasion with large language models.

Kobi Hackenburg, Ben M. Tappin, Paul Röttger, Scott Hale, Jonathan Bright, Helen Z. Margetts

CoRR, 2024

Women are less comfortable expressing opinions online than men and report heightened fears for safety: Surveying gender differences in experiences of online harms.

Francesca Stevens, Florence E. Enock, Tvesha Sippy, Jonathan Bright, Miranda Cross, Pica Johansson, Judy Wajcman, Helen Z. Margetts

CoRR, 2024

AI for bureaucratic productivity: Measuring the potential of AI to help automate 143 million UK government transactions.

Vincent J. Straub, Youmna Hashem, Jonathan Bright, Satyam Bhagwanani, Deborah Morgan, John Francis, Saba Esnaashari, Helen Z. Margetts

CoRR, 2024

Who is driving the conversation? Analysing the nodality of British MPs and journalists on Twitter.

Leonardo Castro-Gonzalez, Sukankana Chakraborty, Helen Z. Margetts, Hardik Rajpal, Daniele Guariso, Jonathan Bright

CoRR, 2024

Understanding gender differences in experiences and concerns surrounding online harms: A short report on a nationally representative survey of UK adults.

Florence E. Enock, Francesca Stevens, Jonathan Bright, Miranda Cross, Pica Johansson, Judy Wajcman, Helen Z. Margetts

CoRR, 2024

Understanding engagement with platform safety technology for reducing exposure to online harms.

Jonathan Bright, Florence E. Enock, Pica Johansson, Helen Z. Margetts, Francesca Stevens

CoRR, 2024

2023

Artificial intelligence in government: Concepts, standards, and a unified framework.

Vincent J. Straub, Deborah Morgan, Jonathan Bright, Helen Z. Margetts

Gov. Inf. Q., October, 2023

2022

How can we combat online misinformation? A systematic overview of current interventions and their efficacy.

Pica Johansson, Florence Enock, Scott Hale, Bertie Vidgen, Cassidy Bereskin, Helen Z. Margetts, Jonathan Bright

CoRR, 2022

2021

An influencer-based approach to understanding radical right viral tweets.

Laila Sprejer, Helen Z. Margetts, Kleber Oliveira, David O'Sullivan, Bertie Vidgen

CoRR, 2021

Tweeting for the Cause: Network analysis of UK petition sharing.

Peter Cihon, Taha Yasseri, Scott Hale, Helen Z. Margetts

CoRR, 2021

Introducing CAD: the Contextual Abuse Dataset.

Bertie Vidgen, Dong Nguyen, Helen Z. Margetts, Patrícia G. C. Rossini, Rebekah Tromble

Proceedings of the 2021 Conference of the North American Chapter of the Association for Computational Linguistics: Human Language Technologies, 2021

An Expert Annotated Dataset for the Detection of Online Misogyny.

Ella Guest, Bertie Vidgen, Alexandros Mittos, Nishanth Sastry, Gareth Tyson, Helen Z. Margetts

Proceedings of the 16th Conference of the European Chapter of the Association for Computational Linguistics: Main Volume, 2021

HateCheck: Functional Tests for Hate Speech Detection Models.

Paul Röttger, Bertie Vidgen, Dong Nguyen, Zeerak Waseem, Helen Z. Margetts, Janet B. Pierrehumbert

Proceedings of the 59th Annual Meeting of the Association for Computational Linguistics and the 11th International Joint Conference on Natural Language Processing, 2021

2020

Detecting East Asian Prejudice on Social Media.

Bertie Vidgen, Scott Hale, Ella Guest, Helen Z. Margetts, David A. Broniatowski, Zeerak Waseem, Austin Botelho, Matthew Hall, Rebekah Tromble

Proceedings of the Fourth Workshop on Online Abuse and Harms, 2020

2019

Trajectories of Islamophobic hate amongst far right actors on Twitter.

Bertie Vidgen, Taha Yasseri, Helen Z. Margetts

CoRR, 2019

2018

Volatility in the Issue Attention Economy.

Chico Q. Camargo, Scott A. Hale, Peter John, Helen Z. Margetts

CoRR, 2018

2017

Rapid rise and decay in petition signing.

Taha Yasseri, Scott A. Hale, Helen Z. Margetts

EPJ Data Sci., 2017

Does Campaigning on Social Media Make a Difference? Evidence from candidate use of Twitter during the 2015 and 2017 UK Elections.

Jonathan Bright, Scott A. Hale, Bharath Ganesh, Andrew Bulovsky, Helen Z. Margetts, Phil Howard

CoRR, 2017

2016

Understanding political turbulence: the data science of politics.

Helen Z. Margetts

Proceedings of the 8th ACM Conference on Web Science, 2016

2014

Investigating Political Participation and Social Information Using Big Data and a Natural Experiment.

Scott A. Hale, Peter John, Helen Z. Margetts, Taha Yasseri

CoRR, 2014

Mapping the UK webspace: fifteen years of british universities on the web.

Scott A. Hale, Taha Yasseri, Josh Cowls, Eric T. Meyer, Ralph Schroeder, Helen Z. Margetts

Proceedings of the ACM Web Science Conference, 2014

2013

Modeling the Rise in Internet-based Petitions.

Taha Yasseri, Scott A. Hale, Helen Z. Margetts

CoRR, 2013

Leadership without Leaders? Starters and Followers in Online Collective Action.

Helen Z. Margetts, Peter John, Scott A. Hale, Stéphane Reissfelder

CoRR, 2013

Petition growth and success rates on the UK No. 10 Downing Street website.

Scott A. Hale, Helen Z. Margetts, Taha Yasseri

Proceedings of the Web Science 2013 (co-located with ECRC), 2013

2006

The web structure of e-government - developing a methodology for quantitative evaluation.

Vaclav Petricek, Tobias Escher, Ingemar J. Cox, Helen Z. Margetts

Proceedings of the 15th international conference on World Wide Web, 2006

2005

Smartening up to risk in electronic government.

Helen Z. Margetts

Inf. Polity, 2005

1993

Computerization and Controversy: Value Conflicts and Social Choices.

Helen Z. Margetts

J. Inf. Technol., 1993

Risk assessment and information systems.

Leslie P. Willcocks, Helen Z. Margetts

Proceedings of the First European Conference on Information Systems, 1993