Machine-learning media bias.

We present an automated method for measuring media bias. Inferring which newspaper published a given article, based only on the frequencies with which it uses different phrases, leads to a conditional probability distribution whose analysis lets us automatically map newspapers and phrases into a bia...

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Main Authors: Samantha D'Alonzo, Max Tegmark
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2022-01-01
Series:PLoS ONE
Online Access:https://doi.org/10.1371/journal.pone.0271947
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author Samantha D'Alonzo
Max Tegmark
author_facet Samantha D'Alonzo
Max Tegmark
author_sort Samantha D'Alonzo
collection DOAJ
description We present an automated method for measuring media bias. Inferring which newspaper published a given article, based only on the frequencies with which it uses different phrases, leads to a conditional probability distribution whose analysis lets us automatically map newspapers and phrases into a bias space. By analyzing roughly a million articles from roughly a hundred newspapers for bias in dozens of news topics, our method maps newspapers into a two-dimensional bias landscape that agrees well with previous bias classifications based on human judgement. One dimension can be interpreted as traditional left-right bias, the other as establishment bias. This means that although news bias is inherently political, its measurement need not be.
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spelling doaj.art-d5f8b500956b4a1092f8f284b7aaf54f2022-12-22T01:38:19ZengPublic Library of Science (PLoS)PLoS ONE1932-62032022-01-01178e027194710.1371/journal.pone.0271947Machine-learning media bias.Samantha D'AlonzoMax TegmarkWe present an automated method for measuring media bias. Inferring which newspaper published a given article, based only on the frequencies with which it uses different phrases, leads to a conditional probability distribution whose analysis lets us automatically map newspapers and phrases into a bias space. By analyzing roughly a million articles from roughly a hundred newspapers for bias in dozens of news topics, our method maps newspapers into a two-dimensional bias landscape that agrees well with previous bias classifications based on human judgement. One dimension can be interpreted as traditional left-right bias, the other as establishment bias. This means that although news bias is inherently political, its measurement need not be.https://doi.org/10.1371/journal.pone.0271947
spellingShingle Samantha D'Alonzo
Max Tegmark
Machine-learning media bias.
PLoS ONE
title Machine-learning media bias.
title_full Machine-learning media bias.
title_fullStr Machine-learning media bias.
title_full_unstemmed Machine-learning media bias.
title_short Machine-learning media bias.
title_sort machine learning media bias
url https://doi.org/10.1371/journal.pone.0271947
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