| 摘要 |
According to an aspect, a data retrieval apparatus includes a display unit, a detector, and a control unit. The display unit displays a group including a plurality of data on a display screen. Each of data is associated with a relevance ratio to search criteria. The detector detects movement of the group on the display screen. The control unit calculates a rate according to a degree of the movement of the group detected by the detector, and extracts the data from the group based on a comparison between the calculated rate and the relevance ratio.
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