Search Results for author: Michael V. Arnold

Found 8 papers, 4 papers with code

An assessment of measuring local levels of homelessness through proxy social media signals

no code implementations15 May 2023 Yoshi Meke Bird, Sarah E. Grobe, Michael V. Arnold, Sean P. Rogers, Mikaela I. Fudolig, Julia Witte Zimmerman, Christopher M. Danforth, Peter Sheridan Dodds

An increase to the log-odds of ``homeless'' appearing in an English-language tweet, as well as an acceleration in the increase in average tweet sentiment, suggest that tweets about homelessness are also affected by trends at the nation-scale.

Curating corpora with classifiers: A case study of clean energy sentiment online

no code implementations4 May 2023 Michael V. Arnold, Peter Sheridan Dodds, Christopher M. Danforth

Both of these drawbacks could be overcome with a real-time, high volume data stream and fast analysis pipeline.

Binary Classification

Sentiment and structure in word co-occurrence networks on Twitter

no code implementations1 Oct 2021 Mikaela Irene Fudolig, Thayer Alshaabi, Michael V. Arnold, Christopher M. Danforth, Peter Sheridan Dodds

We explore the relationship between context and happiness scores in political tweets using word co-occurrence networks, where nodes in the network are the words, and the weight of an edge is the number of tweets in the corpus for which the two connected words co-occur.

Community Detection

Quantifying language changes surrounding mental health on Twitter

no code implementations2 Jun 2021 Anne Marie Stupinski, Thayer Alshaabi, Michael V. Arnold, Jane Lydia Adams, Joshua R. Minot, Matthew Price, Peter Sheridan Dodds, Christopher M. Danforth

Mental health challenges are thought to afflict around 10% of the global population each year, with many going untreated due to stigma and limited access to services.

The shocklet transform: A decomposition method for the identification of local, mechanism-driven dynamics in sociotechnical time series

2 code implementations27 Jun 2019 David Rushing Dewhurst, Thayer Alshaabi, Dilan Kiley, Michael V. Arnold, Joshua R. Minot, Christopher M. Danforth, Peter Sheridan Dodds

We introduce a qualitative, shape-based, timescale-independent time-domain transform used to extract local dynamics from sociotechnical time series---termed the Discrete Shocklet Transform (DST)---and an associated similarity search routine, the Shocklet Transform And Ranking (STAR) algorithm, that indicates time windows during which panels of time series display qualitatively-similar anomalous behavior.

Physics and Society Data Structures and Algorithms Signal Processing Data Analysis, Statistics and Probability

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