Search Results for author: Andrew Alexander

Found 4 papers, 0 papers with code

Topological Data Mapping of Online Hate Speech, Misinformation, and General Mental Health: A Large Language Model Based Study

no code implementations22 Sep 2023 Andrew Alexander, Hongbin Wang

We then performed various machine-learning classifications based on these embeddings in order to understand the role of hate speech/misinformation in various communities.

Language Modelling Large Language Model +2

SURF: Improving classifiers in production by learning from busy and noisy end users

no code implementations12 Oct 2020 Joshua Lockhart, Samuel Assefa, Ayham Alajdad, Andrew Alexander, Tucker Balch, Manuela Veloso

We show that conventional crowdsourcing algorithms struggle in this user feedback setting, and present a new algorithm, SURF, that can cope with this non-response ambiguity.

Epitome driven 3-D Diffusion Tensor image segmentation: on extracting specific structures

no code implementations NeurIPS 2010 Kamiya Motwani, Nagesh Adluru, Chris Hinrichs, Andrew Alexander, Vikas Singh

Now, given such a representation, the problem reduces to segmenting new brain image with additional constraints that enforce consistency between the segmented foreground and the pre-specified histogram over features.

Image Segmentation Segmentation +1

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