Journalism & Mass Communication Quarterly — Archive of Issues by Date

Big Social Data Analytics in Journalism and Mass Communication
▻http://jmq.sagepub.com/content/early/2016/03/29/1077699016639231.full

this present study is the first attempt to validate the efficacy of the LDA model in the context of journalism and mass communication research. Considering its decent performance, future research should consider using this method to analyze mass communication text, especially to process large-scaled social media data. For example, when communication scholars have a big dataset, but are unsure of the topics or attributes that exist inside of it, our results suggest the LDA-based analysis will be more effective than using the most frequently used words to devise topic lists.

#gensim #topics #LDA #data_journalisme

Mass #surveillance silences minority opinions, according to study - The Washington Post
▻https://www.washingtonpost.com/news/the-switch/wp/2016/03/28/mass-surveillance-silences-minority-opinions-according-to-study

A new study shows that knowledge of government surveillance causes people to self-censor their dissenting opinions online. The research offers a sobering look at the oft-touted "democratizing" effect of social media and Internet access that bolsters minority opinion. — Permalink

#démocratie