In the current era of the internet, where social media platforms are easily accessible for everyone, people often have to deal with threats, identity attacks, hate, and bullying due to their association with a cast, creed, gender, religion, or even acceptance or rejection of a notion. Existing works in hate speech detection primarily focus on individual comment classification as a sequence labeling task and often fail to consider the context of the conversation. The context of a conversation often plays a substantial role when determining the author's intent and sentiment behind the tweet. This paper describes the system proposed by team MIDAS-IIITD for HASOC 2021 subtask 2, one of the first shared tasks focusing on detecting hate speech from Hindi-English code-mixed conversations on Twitter. We approach this problem using neural networks, leveraging the transformer's cross-lingual embeddings and further finetuning them for low-resource hate-speech classification in transliterated Hindi text. Our best performing system, a hard voting ensemble of Indic-BERT, XLM-RoBERTa, and Multilingual BERT, achieved a macro F1 score of 0.7253, placing us first on the overall leaderboard standings.

本文介绍了 MIDAS-IIITD 团队针对 HASOC 2021 二号子任务提出的系统，用于检测推特上混合使用印地语和英语的谈话中的仇恨言论。我们采用神经网络方法，并利用transformer的跨语言嵌入来进行低资源语录下的贴性言论分类，其中最佳表现的系统 [(Indic-BERT, XLM-RoBERTa, 和 Multilingual BERT) 的难度投票集成方法，Macro F1得分达到0.7253，排名第一。

利用Transformer模型检测会话式混合代码推文中的仇恨言论