| 摘要 |
The presence of a non-text object is sensed in a mixed object document to be archived in an information retrieval system. In addition to text objects, a mixed object document can contain non-text objects such as image objects, graphics objects, formatted objects, font objects, voice objects, video objects and animation objects. This enables the creation of key words which characterize the non-text object, for incorporation in the inverted file index of the data base, thereby enabling the later retrieval of either the entire document or the independent retrieval of the non-text object through the use of such key words.
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