Large-scale data analysis using the Wigner function

Earnshaw, Rae; Lei, Ci; Li, Jing; Mugassabi, Souad I.; Vourdas, A.

doi:10.1016/j.physa.2011.11.060

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Cited by 6 publications

(2 citation statements)

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“…However, time-frequency analysis can be applied to cross-sectional data using the Wigner function, which integrates to one (Earnshaw et al, 2012). Wigner function analysis uses a pseudo-probability function, which is particularly useful in identifying uniform or non-uniform trends.…”

Section: Methodsmentioning

confidence: 99%

See 1 more Smart Citation

Identifying Networks in Social Media: The case of #Grexit

Magkonis

Jackson

2018

Netw Spat Econ

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We examine the intensity of '#Grexit' usage in Twitter during a period of economic and financial turbulence. Using a frequency-analysis technique, we illustrate that we can extract detailed information from social media data. This allows us to map the networks of interest as it is reflected in Twitter. Our findings identify high-interest in Grexit from Twitter users in key peripheral countries, core Eurozone members as well as core EU member states outside the Eurozone. Overall, our study presents a useful tool for identifying clusters. This is part of a new research agenda utilising the information extracted from big data available via social media channels.

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Section: Methodsmentioning

confidence: 99%

“…The use of frequency analysis to explore ordered categorical variables is outlined inEarnshaw et al (2012).…”

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confidence: 99%