发明名称 |
Search device |
摘要 |
A search unit 60 calculates a character-string similarity by acquiring expansion source document data partially matching a search query 70 from a character-string search index 40, determines a relational-data expansion similarity by acquiring expansion destination document data defined to have a relationship with the expansion source document data from a relational-data expansion index 50 and correcting the acquired data by the character-string similarity of the expansion destination document data and relation weight data 80, and outputs a search result 90 arranged in an order of the relational-data expansion similarity. |
申请公布号 |
US9507881(B2) |
申请公布日期 |
2016.11.29 |
申请号 |
US201114344008 |
申请日期 |
2011.12.27 |
申请人 |
Mitsubishi Electric Corporation |
发明人 |
Aikawa Takeyuki;Okato Yohei |
分类号 |
G06F17/30;G01C21/36 |
主分类号 |
G06F17/30 |
代理机构 |
Oblon, McClelland, Maier & Neustadt, L.L.P. |
代理人 |
Oblon, McClelland, Maier & Neustadt, L.L.P. |
主权项 |
1. A search device comprising:
a character-string search index configured to register document data to be searched by dividing the document data into predetermined units; a relational-data expansion index configured to define a relationship between the respective document data and further define a type of the relationship; a character-string search unit configured to
divide a search query into partial data in the predetermined units,acquire document data partially matching the partial data from the character-string search index, andcalculate a similarity between the partial data and the respective document data; and a relational-data expansion search unit configured to
acquire, from the relational-data expansion index, relational definition data of an expansion source document and an expansion destination document, and a relationship indicator corresponding to a type of relationship between the expansion source document and the expansion destination document, correct the similarity based on the relational definition data and a weighted factor associated with the relationship indicator, andarrange and output the expansion source document data in an order of the corrected similarity. |
地址 |
Tokyo JP |