US 12,332,927 B2
Information search system
Yusuke Takemura, Tokyo (JP); Akira Kariya, Tokyo (JP); Satoshi Kuwabara, Tokyo (JP); Ayaka Eto, Tokyo (JP); Nobuyuki Morooka, Tokyo (JP); Daiki Shigeoka, Tokyo (JP); Shudo Takenaka, Tokyo (JP); and Daigo Ito, Tokyo (JP)
Assigned to JFE STEEL CORPORATION, Tokyo (JP)
Appl. No. 17/999,849
Filed by JFE STEEL CORPORATION, Tokyo (JP)
PCT Filed May 25, 2021, PCT No. PCT/JP2021/019887
§ 371(c)(1), (2) Date Nov. 24, 2022,
PCT Pub. No. WO2021/241603, PCT Pub. Date Dec. 2, 2021.
Claims priority of application No. 2020-093684 (JP), filed on May 28, 2020.
Prior Publication US 2023/0237083 A1, Jul. 27, 2023
Int. Cl. G06F 16/3329 (2025.01); G06F 16/3332 (2025.01); G06F 40/242 (2020.01); G06F 40/247 (2020.01)
CPC G06F 16/3329 (2019.01) [G06F 16/3334 (2019.01); G06F 40/242 (2020.01); G06F 40/247 (2020.01)] 8 Claims
OG exemplary drawing
 
1. An information search system, comprising:
a primary database configured to store a plurality of pieces of information that are text-searchable;
a query sentence acceptance unit configured to accept a query sentence in a natural language format;
an inputted search keyword extractor configured to extract an inputted search keyword from the query sentence;
a shared keyword dictionary in which relevant keywords are registered in association with each other;
a local keyword dictionary in which district keywords used in particular districts are registered, the district keywords including a word used exclusively in factories or offices within each of the particular districts, and the local keyword dictionary being configured as a table to determine a particular district where each of the registered district keywords is used;
a candidate search keyword reader configured to refer to the shared keyword dictionary and/or the local keyword dictionary, so as to read out a keyword that is relevant to the inputted search keyword;
a retrieval executor configured to execute retrieval processing on a material from the primary database using the inputted search keyword, along with the keyword that is relevant to the inputted search keyword, wherein in a case in which the inputted search keyword is not registered in the local keyword dictionary, the candidate search keyword reader refers to the shared keyword dictionary, so as to read out a keyword that is relevant to the inputted search keyword; and
an information management apparatus configured to:
execute character extraction processing on the material stored in a local database for each of the particular districts;
convert a file format of the material according to a size of the material; and
store the material in the primary database, wherein
in a case in which the size of the material is less than or equal to a threshold, the information management apparatus converts the material into a first file format, and
in a case in which the size of the material is not less than or equal to the threshold, the information management apparatus converts the material into a second file format that includes link information to the local database.