| 摘要 |
The invention notably has for its object to permit a user who uses multimedia content to make a search for an object of interest evoked in said content, without having to formulate the question himself. For this purpose, a selection tool (for example, a key) permits the user to select a passage of the content while he is using it. When the user makes a selection, a context data is extracted from the content (for example, the current reading time). This context data is then used for recovering one or more descriptions in a document (for example, an MPEG-7 document) which describes said content. The recovered descriptions are finally used for automatically formulating a question intended to be transmitted to a search engine.
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