Browsing Student Works by Author "Brophy, Jonathan"

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Collective Classification of Social Network Spam

Brophy, Jonathan (University of Oregon, 2017-09-06)

Unsolicited messages affects virtually every popular social media website, and spammers have become increasingly proficient at bypassing conventional filters, prompting a stronger effort to develop new methods. First, we ...
Understanding and Adapting Tree Ensembles: A Training Data Perspective

Brophy, Jonathan (University of Oregon, 2023-03-24)

Despite the impressive success of deep-learning models on unstructured data (e.g., images, audio, text), tree-based ensembles such as random forests and gradient-boosted trees are hugely popular and remain the preferred ...