Sharp Kabushiki Kaisha Corporation

Hideki Nishimura

Toru Ueda

Jiro Kiyama

Katsuya Nakagawa

Katsuo Doi

Azusa Umemoto

Tsukasa Kaminokado

Hironori Inoue

Hiroki Abe

Shusaku Mizukami

There is provided a light output system () including a speaker (), a light output unit (), and a processorto cause first audio and second audio to be output from the speaker () and cause the light output unit () to output light corresponding to the second audio output.

Light output system

A content distribution system that is supplied with power from a plurality of power sources having different environmental loads and that distributes content to a content playback apparatus connected via a communication circuit, the content distribution system distributing content with respect to a content distribution request from the content playback apparatus with a service quality that is determined so as to suppress the environmental load by the power supplied from the plurality of power sources to a predetermined environmental load.

Content distribution system, content distribution apparatus, content distribution method, content distribution program, and content playback apparatus

The present invention produces class-specific key words from a document set. In particular, an importance of a word is defined to take into account the number of documents in a corresponding class. A class may be for example, a class of author. An importance value of a word is based on a ratio of the count value of a word in a corresponding class to the number of documents in the class, less the ratio of the count value of the word in other classes to the number of documents in the other classes. Words are sorted by importance in each class. A characteristic key word in each class may be derived from the target document set. In an alternative embodiment, instead of a difference in ratios, the first ratio is divided by the second ratio. By using the alternative approach to calculating importance, the variation in the magnitude of the importance will not be effected by the number of documents.

Key word deriving device, key word deriving method, and storage medium containing key word deriving program

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Sakai, Japan

Hideki Nishimura