Entity alignment method and system for digital education resources

Abstract

The invention discloses an entity alignment method and system for digital education resources, and the method comprises the steps: carrying out the subject partitioning of an existing education resource library through a subject topic tree, and building a partition index system in each education resource block; extracting knowledge point tags of the to-be-aligned digital education resources through an SKE algorithm, and screening out an entity alignment candidate set through an index; calculating knowledge point tag similarity, attribute value similarity and text resource similarity of the entity pairs in the candidate set; and finally, inputting the entity pair similarity data obtained by calculation as a characteristic value into the constructed decision tree, and judging an alignment result. When the method is adopted to align the entities of the digital education resources, the complexity of entity alignment calculation can be greatly reduced, and the alignment efficiency is improved; and the text similarity calculation precision of the digital education resources is improved, so that the entity alignment accuracy is improved.

Description

Technical field [0001] The invention relates to a method and system for entity alignment of digital education resources, belonging to the field of digital education resources. Background technique [0002] With the development of today's technology, network-based digital education resources have become more abundant. People can easily obtain a large number of high-quality education resources that meet their own needs through the network without geographical restrictions, which greatly improves their own subjective initiative. Today, personalized digital education resource services have become a powerful supplement to the traditional education model and an effective education channel that cannot be ignored. [0003] However, as the amount of data grows, the existing digital education resource services have exposed some shortcomings: 1) The total amount of available resources is too large, which may cause students to spend a lot of time on information screening and unable to quickly ...

AI Technical Summary

Problems solved by technology

The entity alignment method of the present invention is accurate and efficient, effectively integrates massive network digital education resources, solves the problems of digital education resources duplication, redundancy and scattered distribution, and improves the service quality of digital education resources

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