Question answering method and system based on brain-inspired semantic hierarchical temporal memory reasoning model

Abstract

The invention belongs to the field of cognitive neuroscience, particularly relates to a question and answer method and system based on a brain-like semantic hierarchical memory reasoning model, and aims to solve the problem of small sample learning of natural language understanding tasks such as text generation and automatic question and answer. The method comprises the steps of acquiring and inputting a question text and an answer text; Performing time sequence pooling on the text to obtain a word vector matrix; Pooling the space and time of each word vector in the word vector matrix to obtain a binary word representation set of which each bit is 0 or 1 corresponding to the word vector; Performing brain-like learning on the text and the word set to obtain an optimized model; And independently inputting the question text, performing word reduction based on the cell prediction state in the model, obtaining an answer text, and outputting the answer text. According to the method, a semantic hierarchical time sequence memory model is combined, the model is constructed based on a learning mode of small sample data and knowledge reasoning, the requirement for the number of samples is low, a large number of parameters do not need to be adjusted, and the expandability of the model is improved.

Description

technical field [0001] The invention belongs to the field of cognitive neuroscience, and in particular relates to a question answering method and system based on a brain-inspired semantic hierarchical temporal memory reasoning model. Background technique [0002] Although traditional neural networks can better solve pattern recognition problems including images, speech or text, they often require multiple rounds of iterative training with a large amount of data, which does not match the process of human learning knowledge. When humans learn to recognize images and memorize text, they often do not need a lot of repeated training, and human learning is an online learning process. When faced with new knowledge, humans will make corresponding reasoning based on previously acquired knowledge Compared with analogy, it can learn new knowledge faster. In contrast, traditional neural network algorithms have achieved good results in some pattern recognition tasks, but when faced with ...

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Problems solved by technology

[0005] In order to solve the above problems in the prior art, that is, to solve the small-sample learning problems of natural language understanding tasks such as text generation and automatic question-and-answer based on human-like pattern recognition algorithms, the present invention provides a temporal memory reasoning based on brain-like semantic hierarchy Question answering methods for the model, including:

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