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The Hateful Memes Challenge: Detecting Hate Speech in Multimodal Memes

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TLDR
The authors proposed a new challenge set for multimodal classification, focusing on detecting hate speech in multi-modal memes, where difficult examples are added to the dataset to make it hard to rely on unimodal signals.
Abstract
This work proposes a new challenge set for multimodal classification, focusing on detecting hate speech in multimodal memes. It is constructed such that unimodal models struggle and only multimodal models can succeed: difficult examples ("benign confounders") are added to the dataset to make it hard to rely on unimodal signals. The task requires subtle reasoning, yet is straightforward to evaluate as a binary classification problem. We provide baseline performance numbers for unimodal models, as well as for multimodal models with various degrees of sophistication. We find that state-of-the-art methods perform poorly compared to humans (64.73% vs. 84.7% accuracy), illustrating the difficulty of the task and highlighting the challenge that this important problem poses to the community.

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References
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Recipe recognition with large multimodal food dataset

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Supervised Multimodal Bitransformers for Classifying Images and Text

TL;DR: This work introduces a supervised multimodal bitransformer model that fuses information from text and image encoders, and obtains state-of-the-art performance on various multi-modal classification benchmark tasks, outperforming strong baselines, including on hard test sets specifically designed to measure multimodals performance.
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TL;DR: This work investigates use of posted images and captions for improved detection of bullying in response to shared content, and identifies the importance of these advanced features in assisting detection of cyberbullying in posted comments.
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Prediction of Cyberbullying Incidents on the Instagram Social Network

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Characterizing and Detecting Hateful Users on Twitter.

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