| 摘要 |
A data search apparatus includes an obtaining unit that obtains a content and a first metadata corresponding to the content and including at least a search key indicating an object of the content; a feature amount computing unit that computes a feature amount indicating a feature of the content from the obtained content; a learning-data storing unit that stores a learning-data that correspondingly includes the first metadata corresponding to each of the obtained content and the computed feature amount; a learning-data reconstructing unit that reconstructs the learning-data by generating a second metadata from the first metadata included in the learning-data stored in the learning-data storing unit so that the second metadata includes all search keys in the first metadata of all the learning-data, and by replacing the first metadata by the second metadata in learning-data; and a model generating unit that generates a model from the learning-data, the model being a coefficient matrix indicating a relation between the feature amount and the search key in the generated the first metadata.
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