Open Information Extraction (OpenIE) is a fundamental yet challenging task in
Natural Language Processing, which involves extracting all triples (subject,
predicate, object) from a given sentence. While labeling-based methods have
their merits, generation-based techniques offer unique advantages, such as the
ability to generate tokens not present in the original sentence. However, these
generation-based methods often require a significant amount of training data to
learn the task form of OpenIE and substantial training time to overcome slow
model convergence due to the order penalty. In this paper, we introduce a novel
framework, OK-IE, that ingeniously transforms the task form of OpenIE into the
pre-training task form of the T5 model, thereby reducing the need for extensive
training data. Furthermore, we introduce an innovative concept of Anchor to
control the sequence of model outputs, effectively eliminating the impact of
order penalty on model convergence and significantly reducing training time.
Experimental results indicate that, compared to previous SOTA methods, OK-IE
requires only 1/100 of the training data (900 instances) and 1/120 of the
training time (3 minutes) to achieve comparable results.

通过将 OpenIE 任务形式巧妙地转换为 T5 模型的预训练任务形式，并引入锚点的创新概念，OK-IE 显著减少了对大量训练数据的需求，消除了模型收敛速度慢的问题，实验结果显示，相较于之前的 SOTA 方法，OK-IE 仅需 1/100 的训练数据量（900 个实例）和 1/120 的训练时间（3 分钟）即可达到可比较的结果。