Financial event extraction method based on small samples

The invention discloses a financial event extraction method based on small samples, which comprises the following steps: determining financial events and elements to be extracted according to actual needs, including trigger words and a plurality of event arguments; the method comprises the following steps of: constructing an event element extraction model comprising an additional data encoding module, an element classifier, a statement reconstruction module, a reconstruction statement encoder, a relationship classifier and an event decoding module, and training by adopting a training sample; and inputting the corresponding word sequence into the trained event element extraction model, predicting to obtain elements contained in the statement and element pairs with a trigger word-event argument relationship, screening out the element with the highest occurrence frequency as a trigger word, taking other elements as event arguments, and forming a financial event. According to the method, financial event extractio