Analyzing Antisemitic Discourse Evolution on Extremist Social Media with BERT

Kernkonzepte

The authors propose an unsupervised machine learning approach to monitor the evolution of antisemitic discourse on extremist social media. By extracting themes and terminology from posts, they aim to provide a tool for monitoring and intervention in online hate speech.

Zusammenfassung

The study focuses on tracking antisemitic themes over time using automated methods due to impracticality of manual monitoring. It aims to prevent the escalation of hatred by identifying evolving themes and associated terminology. The methodology outperforms existing baselines in discovering themes within antisemitic discourse.

The paper discusses the philosophical basis, related studies, ML techniques, and methodology used for combating online hate speech. It presents results comparing different clustering approaches and provides qualitative analysis of extracted concepts related to antisemitism.

Key concepts include accusations of economic, cultural, and political control by Jews, rejection of Christianity, dystopian antisemitism, Zionist Occupation Government conspiracy theories, religious tropes, and references to Jewish mafia figures like Rothschild and Soros.

Statistiken

Our approach settled on 9 clusters which we use going forward.
Birch ran without specifying k obtained over 300 clusters.
Mean Shift only learned two concepts.
Gaussian Mixture required a pre-defined number of clusters (k = 9).
Affinity Propagation discovered 31 clusters.
Spectral Clustering did well on DBI but poorly on SC and CHI.

Zitate

"The purpose of our work is to explore the ability of machine learning tools to extract a continuously evolving map of semantic themes represented in social media posts."
"Our experiments show that our methodology outperforms existing baselines in discovering themes within antisemitic discourse."

Wichtige Erkenntnisse aus

Monitoring the evolution of antisemitic discourse on extremist social media using BERT

by Raza Ul Must... um arxiv.org 03-12-2024

https://arxiv.org/pdf/2403.05548.pdf

Tiefere Fragen

How can this unsupervised machine learning approach be adapted for monitoring other forms of online hate speech?

This unsupervised machine learning approach can be adapted for monitoring other forms of online hate speech by adjusting the thematic focus and terminology used in the analysis. The methodology outlined in the study, which involves clustering similar posts together based on contextual embeddings from large language models, can be applied to different types of hate speech by modifying the seed words and themes relevant to those specific categories. For instance, if monitoring Islamophobic discourse, the system could be trained with keywords and concepts related to anti-Muslim sentiments. By fine-tuning the model with domain-specific vocabulary and patterns indicative of various types of hatred, such as racism or homophobia, researchers can effectively track evolving discussions across different extremist social media platforms.

What ethical considerations should be taken into account when using automated methods to analyze sensitive content like antisemitism?

When utilizing automated methods to analyze sensitive content like antisemitism, several ethical considerations must be carefully addressed:

Bias Mitigation: Ensure that the algorithms are designed and trained in a way that minimizes bias towards any particular group or ideology.
Transparency: Provide transparency about how data is collected, analyzed, and interpreted to maintain accountability.
Privacy Protection: Safeguard user privacy by anonymizing data and adhering to data protection regulations.
Consent: Obtain explicit consent from users before analyzing their public posts or comments on social media platforms.
Human Oversight: Incorporate human oversight in the process to validate results and prevent harmful outcomes caused by algorithmic errors.
Mitigating Harm: Implement measures to mitigate potential harm caused by exposing hateful content while ensuring it does not amplify or spread further.

How can social platforms collaborate with researchers to implement proactive measures against hate speech based on these findings?

Social platforms can collaborate with researchers to implement proactive measures against hate speech based on these findings through several strategies:

Data Sharing: Platforms can share anonymized datasets with researchers for analysis while respecting user privacy rights.
Algorithm Development: Collaborate on developing advanced algorithms that detect hate speech patterns more accurately without compromising user experience.
Policy Formulation: Researchers' insights can inform platform policies regarding acceptable behavior standards and enforcement mechanisms against hate speech.
User Education: Conduct joint campaigns or initiatives aimed at educating users about responsible online behavior and consequences of engaging in hateful discourse.
5Content Moderation Tools: Develop tools leveraging research insights for better content moderation practices such as flagging potentially harmful content before it spreads widely.

By fostering collaboration between social platforms and researchers, a more comprehensive understanding of online hate speech dynamics can lead to effective interventions that promote a safer digital environment for all users."