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Financial News Annotation by Weakly-Supervised Hierarchical Multi-label Learning

机译:经财经新闻注释弱监督分层多标签学习

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Financial news is an indispensable source for both investors and regulators to conduct research and investment decisions. To focus on specific areas of interest among the massive financial news, there is an urgent necessity of automatic financial news annotation, which faces two challenges: (1) supervised data scarcity for sub-divided financial fields; (2) the multifaceted nature of financial news. To address these challenges, we target the automatic financial news annotation problem as a weakly-supervised hierarchical multi-label classification. We propose a method that needs no manual labeled data, but a label hierarchy with one keyword for each leaf label as supervision. Our method consists of three components: word embedding with heterogeneous information, multi-label pseudo documents generation, and hierarchical multi-label classifier training. Experimental results on data from a well-known Chinese financial news website demonstrate the superiority of our proposed method over existing methods.
机译:财经新闻是投资者和监管机构进行研究和投资决策的不可或缺的来源。为了专注于巨大的财务新闻中的特定兴趣领域,迫切需要自动财务新闻注释,面临两个挑战:(1)监督分割金融领域的数据稀缺; (2)财经新闻的多方面性质。为了解决这些挑战,我们将自动财务新闻注释问题视为弱监管的分层多标签分类。我们提出了一种不需要手动标记数据的方法,而是一个标签层次结构,每个叶标签为一个关键字作为监督。我们的方法由三个组件组成:用异构信息,多标签伪文档生成和分层多标签分类器培训的单词嵌入。来自着名的中国财经新闻网站的数据实验结果证明了我们提出的方法对现有方法的优越性。

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