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Diachronic Analysis of German Parliamentary Proceedings: Ideological Shifts through the Lens of Political Biases

2021-08-13 15:58:07
Tobias Walter, Celina Kirschner, Steffen Eger, Goran Glavaš, Anne Lauscher, Simone Paolo Ponzetto
arXiv_CL
   
Abstract

We analyze bias in historical corpora as encoded in diachronic distributional semantic models by focusing on two specific forms of bias, namely a political (i.e., anti-communism) and racist (i.e., antisemitism) one. For this, we use a new corpus of German parliamentary proceedings, DeuPARL, spanning the period 1867--2020. We complement this analysis of historical biases in diachronic word embeddings with a novel measure of bias on the basis of term co-occurrences and graph-based label propagation. The results of our bias measurements align with commonly perceived historical trends of antisemitic and anti-communist biases in German politics in different time periods, thus indicating the viability of analyzing historical bias trends using semantic spaces induced from historical corpora.

Abstract (translated)

URL

https://arxiv.org/abs/2108.06295

PDF

https://arxiv.org/pdf/2108.06295.pdf

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