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Topic Modeling of Freelance Job Postings

Topic Modeling of Freelance Job Postings 2025

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The document discusses the use of Latent Dirichlet Allocation (LDA) for topic modeling of freelance job postings to identify and monitor web service abuse. It highlights how attackers exploit crowdsourcing platforms like Freelancer.com to outsource abusive tasks, and presents LDA as an effective unsupervised method to cluster job postings related to abuse without extensive manual labeling. The study analyzes over 350,000 job postings, discovering clusters of abuse jobs and their distinguishing keywords, while also profiling the workers and buyers involved. The findings suggest that LDA can significantly reduce manual effort in monitoring abuse-related job postings.

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