Method and device for determining time information based on natural language

By extracting and parsing time-level information from natural language using a large language model, and generating time-structured data, the problem of inaccurate semantic understanding and calculation in time parsing in existing technologies is solved, thus achieving rigor and accuracy in time calculation in the field of intelligent control.

CN122412484APending Publication Date: 2026-07-17CHENGDU BOSS INNOVATION TECH CO LTD
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Patent Information

Application Number
CN202610541031.0
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-04-22
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

In the field of intelligent control, existing technologies such as rule-based and regular expression matching-based time parsing schemes have weak semantic understanding capabilities and are difficult to handle complex logic and discontinuous time intervals. End-to-end large model schemes are prone to inaccurate calculations and unstable output formats, making it difficult to meet the requirements of rigor.

Method used

A method based on a large language model is adopted. Temporal hierarchical information is extracted from natural language information through pre-configured semantic templates to generate temporally structured data. This data is then parsed at the execution layer to determine standard time objects. Fine-grained parsing is performed using anchors and selectors to avoid computational errors in the execution layer of the large language model.

Benefits of technology

It improves the accuracy of time calculation, eliminates context dependency defects, meets the rigorous requirements of the field of intelligent control, and avoids the illusion and output errors in date calculation of large language models.

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Abstract

The invention provides a method and device for determining time information based on a natural language, and relates to the technical field of intelligent control, and the method comprises the steps: obtaining natural language information and current reference time; extracting time level information included in the natural language information according to a preset semantic template on the basis of the reference time through a pre-configured large language model, and generating time structured data for expressing a time intention of the natural language information according to the time level information; and analyzing the time structured data in the execution layer to determine a standard time object contained in the natural language information. According to the method and the device for determining the time information based on the natural language, the big language model performs semantic analysis without participating in time calculation, so that the phenomenon that a wrong date is output due to digital errors of the big language model and illusion generated in date calculation can be avoided, the accuracy of time calculation is further improved, and the time calculation efficiency is improved. And the preciseness requirement on time calculation in the field of intelligent control is effectively met.
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