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arXiv 1606.01433cs.CL
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Brundlefly在SemEval-2016任务12:临床时间信息抽取的循环神经网络与联合推理

Brundlefly at SemEval-2016 Task 12: Recurrent Neural Networks vs. Joint Inference for Clinical Temporal Information Extraction

Stanford University(斯坦福大学);Mobilize Center(动员中心)

Jason Alan Fries

摘要:

我们提交了两个系统参加SemEval-2016任务12:临床TempEval挑战,参与第1阶段,在第1阶段,我们确定了临床笔记中的时间和事件表达的文本跨度,第2阶段,我们预测了事件与其父文档创建时间之间的关系。对于时间实体提取,我们发现使用结构化预测的基于联合推理的方法优于香草递归神经网络,该网络采用了在各种大型临床文档集上训练的词嵌入。对于文档创建时间关系,我们发现,数据规范化和远程监督规则的组合,用于预测事件和时间表达式的关系,提高了分类,虽然收益是有限的,可能是由于小规模的训练数据。

英文摘要:

We submitted two systems to the SemEval-2016 Task 12: Clinical TempEval challenge, participating in Phase 1, where we identified text spans of time and event expressions in clinical notes and Phase 2, where we predicted a relation between an event and its parent document creation time. For temporal entity extraction, we find that a joint inference-based approach using structured prediction outperforms a vanilla recurrent neural network that incorporates word embeddings trained on a variety of large clinical document sets. For document creation time relations, we find that a combination of date canonicalization and distant supervision rules for predicting relations on both events and time expressions improves classification, though gains are limited, likely due to the small scale of training data.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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