Search device, search method, and search program

The search device addresses the challenge of inconsistent notation in supply chain information by expanding keywords, calculating semantic similarity, and ranking results, ensuring accurate retrieval of relevant information across varied formats and spellings.

JP2026090786APending Publication Date: 2026-06-03KDDI CORP
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Patent Information

Application Number
JP2024203642
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Filing Date
2024-11-22
Publication Date
2026-06-03

AI Technical Summary

Technical Problem

Conventional technologies face challenges in searching and utilizing supply chain information due to inconsistent information formats and notations, making it difficult to recognize variations in company names and retrieve relevant documents, especially when different character sets or group companies are involved.

Method used

A search device and method that utilizes a keyword expansion unit to generate notation variations, a similarity evaluation unit to calculate semantic similarity using vector aggregation, and a result output unit to rank results based on aggregated similarity scores, enabling effective retrieval of desired information despite notation variations.

Benefits of technology

Enables accurate and efficient retrieval of information from repositories with notation variations, enhancing the ability to recognize and link related information across multiple users and suppliers, thus improving supply chain management.

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Abstract

To provide a search device, search method, and search program that can appropriately retrieve information desired by a user from information, including variations in spelling, recorded within a repository. [Solution] The search device 1 includes a keyword reception unit 11 that receives search keywords for each item in a repository where information on multiple items is linked to each other, a keyword extension unit 12 that receives the specification of variations in notation for the search keyword and extends the search keyword, a similarity evaluation unit 13 that calculates an evaluation value by aggregating the similarity between the string stored in the item corresponding to the search keyword in the repository and each of the extended search keywords, and a result output unit 14 that ranks records where information on multiple items is linked based on a score obtained by summing the evaluation values ​​for each item and outputs them as search results.
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