Small sample medical relationship classification method based on multilayer attention mechanism
A technology of relational classification and small samples, which is applied in text database clustering/classification, neural learning methods, healthcare informatics, etc., to achieve the effects of reducing impact, precise judgment, and improving model accuracy
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[0048] In order to understand the present application, the present application will be further described with reference to the related drawings. The preferred embodiment of the present application is given in the drawings.
[0049] The core idea of the present invention is to reduce the impact of noise sentences to the final category vector by imparting different weights to each sentence, specifically, using multi-layer care mechanisms to give important samples to higher The weight, the noise sample to lower weight, thereby increasing the accuracy of the relationship classification.
[0050] PrototyPical Networks is a relatively practical and representative approach to solving small sample classification problems. figure 1 It is a schematic diagram of the prototype network. The main idea of prototype network is very simple: when there is n class in support, each class has K sentences, see the mean of sentence vectors corresponding to each class, will The N mean vector, as a re...
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