Public Mood in Twitter


Vast data-streams from social networks like Twitter and Facebook contain people’s opinions, fears and dreams, offering a brief glimpse into the real-time thoughts and feelings of a large number of people in the form of readily accessible data. Large-scale analysis of social media thereby allows for macro-scale trends and patterns of mood and opinion to be discovered that are difficult, if not impossible, to detect without massive numbers of samples over an extended period of time.

In a series of peer-reviewed publications, we explored how the public mood as measured in the UK Twitter population changes and reacts to events, as well as discovering how the natural mood rhythms that occur in our day to day lives are expressed online.

Findings include detailed analysis of the daily, weekly and yearly periodic patterns of public mood that are found in social media, along with change-point analysis of public mood in response to events such as the announcement of the government budget cuts in 2010 or the Brexit referendum in 2016.

Time series of “anger” in UK Twitter content.


Time series of “joy” in UK Twitter content.


Time series of “fear” in UK Twitter content.


Time series of “sadness” in UK Twitter content.


Related Publications

Thomas Lansdall-Welfare, Fabon Dzogang, Nello Cristianini: Change-point Analysis of the Public Mood in UK Twitter during the Brexit Referendum. In: 2016 IEEE International Conference on Data Mining (ICDM), DMiP Workshop, 2016, ISBN: 9781509054749.

Fabon Dzogang, Thomas Lansdall-Welfare, Nello Cristianini: Seasonal Fluctuations in Collective Mood Revealed by Wikipedia Searches and Twitter Posts. In: 2016 IEEE International Conference on Data Mining (ICDM), SENTIRE Workshop, 2016, ISBN: 9781509054749.

Thomas Lansdall-Welfare: Discovering Culturomic Trends in Large-Scale Textual Corpora. University of Bristol, 2015.

Vasileios Lampos, Thomas Lansdall-Welfare, Ricardo Araya, Nello Cristianini: Analysing mood patterns in the United Kingdom through Twitter content. In: arXiv preprint arXiv:1304.5507, 2013.

Thomas Lansdall-Welfare, Vasileios Lampos, Nello Cristianini: Effects of the Recession on Public Mood in the UK. In: Proceedings of the 21st International Conference Companion on World Wide Web, pp. 1221–1226, ACM, Lyon, France, 2012, ISBN: 978-1-4503-1230-1.

Thomas Lansdall-Welfare, Vasileios Lampos, Nello Cristianini: Nowcasting the mood of the nation. In: Significance, 9 (4), pp. 26–28, 2012.

Thomas Lansdall-Welfare, Vasileios Lampos, Nello Cristianini: The Effect of the Recession on Collective Mood in the UK. In: Internet, Politics, Policy, pp. 21–22, 2012.