| 摘要 |
The present invention concerns a database index for indexing one or more text documents (10) in a database, the text documents (10) comprising one or more hierarchical nodes (10a, 10b, 10c) each comprising one or more words (20a, ..., 20f), the database index comprising at least one entry (50), each entry (50) comprising:
a. a key (51) comprising a subset (510) of words occurring in one of the hierarchical nodes (10a, 10b, 10c) of the text documents (10) and the name (511) of the respective hierarchical node (10a, 10b, 10c); and
b. a value (52) comprising one or more references (520) to the text documents (10) in which the subset (510) occurs. |
