| 摘要 |
A method for retrieving information from a database is provided which database is organized in a hierarchy. The method comprises locating an occurrence of a search term (2310) in either a first plurality of descendants or a second plurality of descendants; traversing the hierarchy from said occurrence to an instance of the patent (2320) using at least one of the direct relationship and the indirect relationship; traversing the hierarchy from said instance of the parent to an instance of one of the first plurality of descendants (2330) using the direct relationship; traversing the hierarchy from said instance of one of the first plurality of descendants to an instance of one of the at least some of the second plurality of descendants (2330) using the direct relationship there between; and building a context corresponding to said occurrence, said instance of the parent, said instance of one of the first plurality of descendants, and said instance of one of the at least some of the second plurality of descendants.
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