Patent retrieval type coding method and device and storage medium

Abstract

The embodiment of the invention provides a patent retrieval type coding method and device and a storage medium, and relates to the technical field of computer language processing. The method comprises the following steps of acquiring a patent retrieval formula; determining the structure of an abstract syntax tree by analyzing a Boolean retrieval statement format suitable for Elasticsearch; generating the patent retrieval formula into an abstract syntax tree according to the structure of the abstract syntax tree; mapping the logic operators stored in the non-leaf nodes to obtain Boolean logic operators, generating an internal code group by using field names, texts and operators stored in the leaf nodes, and generating a code nesting format by using the Boolean logic operators according to a cascade relation between the non-leaf nodes; and filling the internal code group into the code nesting format to obtain the Boolean retrieval statement. According to the method, a user only needs to input a conventional patent retrieval formula, the abstract syntax tree can be automatically generated, and the efficient retrieval is automatically carried out through Elasticsearch.

Description

technical field [0001] The present invention relates to the field of computer language processing, in particular to a coding method, device and storage medium of a patent retrieval formula. Background technique [0002] Elasticsearch is a Lucene-based search server. It provides a distributed multi-user full-text search engine capable of real-time search, stable, reliable, fast, and easy to install and use. Elasticsearch uses the bool (Boolean) matching query method. Users need to write Boolean search statements to use Elasticsearch for indexing. [0003] At present, when users perform patent indexing, they generally write search formulas in the search box, which cannot be directly run in Elasticsearch. The existing Elasticsearch provides a simple method to convert a search expression into a Boolean search statement, but when the search expression is complex (for example, there are brackets or multi-layer nesting), it will cause a search error, and the conversion method pro...

AI Technical Summary

Problems solved by technology

The existing Elasticsearch provides a simple method to convert a search expression into a Boolean search statement, but when the search expression is complex (for example, there are brackets or multi-layer nesting), it will cause a search error, and the conversion method provided by Elasticsearch is not public. The principle of its conversion is unknown and cannot be modified

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