| 摘要 |
The present invention relates to an information processing apparatus, an information processing method and an information processing program that are capable of assigning an optimum keyword to a content. The information processing apparatus includes a content characteristic quantity extraction unit 52, a label information extraction unit 54, a associating information computation unit 56, a content characteristic quantity-latent space associating information storage unit 57 and a label information-latent space associating information storage unit 58. The content characteristic quantity extraction unit 52 extracts characteristic quantities related to a content whereas the label information extraction unit 54 extracts label information showing attributes of a content. The associating information computation unit 56 computes parameters representing the property of a probability distribution for a latent variable Zk common to the characteristic quantities and the label information, the property of a probability distribution for the characteristic quantities and the property of a probability distribution for label information. By storing computed values for the latent variable zk in the content characteristic quantity-latent space associating information storage unit 57 and the label information-latent space associating information storage unit 58, the information processing apparatus is capable of assigning an optimum keyword to a content. The present invention can be applied to the information processing apparatus.
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