Entity alignment method and system for digital education resources

A technology of educational resources and entity pairing, which is applied in electronic digital data processing, text database query, text database indexing, etc., can solve the problems of scattered distribution, duplication and redundancy of digital educational resources, etc., so as to improve calculation accuracy and reduce the complexity of entity alignment Speed, improve the effect of entity alignment speed

Active Publication Date: 2019-08-23
NANJING UNIV OF POSTS & TELECOMM
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  • Claims
  • Application Information

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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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  • Entity alignment method and system for digital education resources
  • Entity alignment method and system for digital education resources
  • Entity alignment method and system for digital education resources

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Embodiment Construction

[0028] In the following, the present invention will be further clarified with reference to the accompanying drawings and specific embodiments. It should be understood that these examples are only used to illustrate the present invention and not to limit the scope of the present invention. After reading the present invention, those skilled in the art will understand various aspects of the present invention. Modifications of the price form all fall within the scope defined by the appended claims of this application.

[0029] An entity alignment method for digital education resources. Firstly, the existing education resource library is divided into blocks and a partition index system is constructed; then the knowledge point labels of the digital education resources to be aligned are extracted, and the entity alignment candidate set is filtered through the index; then the candidates are calculated Concentrate the knowledge point label similarity, attribute value similarity and text re...

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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 ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F16/31G06F16/33G06F17/27
CPCG06F16/316G06F16/3344G06F40/295
Inventor 季一木刘艳兰刘强刘尚东尧海昌李奎许正阳
Owner NANJING UNIV OF POSTS & TELECOMM
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