Abstract: Provided is an information processing method including: acquiring position information associated with installation points of a plurality of observation apparatuses based on signals received from a GNSS satellite by the plurality of observation apparatuses that has executed simultaneous observation, and position information associated with known control points; and generating, by a processor, a check network based on a first automatic generation algorithm by using the position information associated with the installation points of the plurality of observation apparatuses acquired and the position information associated with the known control points.

Abstract: Provided is an information processing method including: acquiring position information associated with installation points of a plurality of observation apparatuses based on signals received from a GNSS satellite by the plurality of observation apparatuses that has executed simultaneous observation, and position information associated with known control points; and generating, by a processor, a check network based on a first automatic generation algorithm by using the position information associated with the installation points of the plurality of observation apparatuses acquired and the position information associated with the known control points.

Abstract: A client device includes cache in which a source of content is stored, a cache information transmitting unit configured to transmit information indicating the source stored in the cache to a server managing a group of client devices capable of communicating without using an external network, an external cache acquiring unit configured to acquire, from other client devices in the group, sources of content requested to be output based on information provided by the server, and a source acquiring unit configured to, when at least a part among the sources of the content requested to be output is not acquired from the other client devices, acquire the unacquired source from a content server through the external network.

Abstract: An information processing apparatus includes a display, an input unit, and a controller. The input unit is configured to receive an input of a first keyword from a user. The controller is configured to retrieve first character information including the input first keyword from a database configured to store a plurality of character information items converted from a plurality of voice information items by voice recognition processing, extract a second keyword that is included in the first character information acquired by the retrieval and is different from the first keyword, and control the display to display a list of items including first identification information with which the acquired first character information is identified and the second keyword included in the first character information.

Abstract: [Object] To further accelerate output of content in a mobile environment. [Solution] Provided is a client device including: a cache in which a source of content is stored; a cache information transmitting unit configured to transmit information indicating the source stored in the cache to a server managing a group of client devices capable of communicating without using an external network; an external cache acquiring unit configured to acquire, from other client devices in the group, sources of content requested to be output based on information provided by the server; and a source acquiring unit configured to, when at least a part among the sources of the content requested to be output is not acquired from the other client devices, acquire the unacquired source from a content server through the external network.

Abstract: There is provided an information processing apparatus including a setting information changing unit adapted to change setting information for setting a presentation state of a content on the basis of viewing environment information representing an environment in which the content is to be viewed and presentation state changing information for changing the presentation state of the content in accordance with the environment in which the content is to be viewed, and a content presentation unit adapted to present, on the basis of the setting information, the content to a user via a display device.

Abstract: There is provided a playback device including a content playback unit configured to playback content, a playlist acquisition unit configured to acquire, while the playback unit is playing back the content on the basis of a playlist, at least one external playlist from outside, the external playlist having at least two pieces of content that are common to content in the playlist and having a matching playback order of at least the two consecutive pieces of content, and a playlist display unit configured to display the playlist and the external playlist acquired by the playlist acquisition unit such that the playlists are linked at positions of the consecutive matching pieces of content.

Abstract: An information processing apparatus includes a display, an input unit, and a controller. The input unit is configured to receive an input of a first keyword from a user. The controller is configured to retrieve first character information including the input first keyword from a database configured to store a plurality of character information items converted from a plurality of voice information items by voice recognition processing, extract a second keyword that is included in the first character information acquired by the retrieval and is different from the first keyword, and control the display to display a list of items including first identification information with which the acquired first character information is identified and the second keyword included in the first character information.

Abstract: There is provided a playback device including a content playback unit configured to playback content, a playlist acquisition unit configured to acquire, while the playback unit is playing back the content on the basis of a playlist, at least one external playlist from outside, the external playlist having at least two pieces of content that are common to content in the playlist and having a matching playback order of at least the two consecutive pieces of content, and a playlist display unit configured to display the playlist and the external playlist acquired by the playlist acquisition unit such that the playlists are linked at positions of the consecutive matching pieces of content.

Abstract: There is provided an information processing apparatus including a setting information changing unit adapted to change setting information for setting a presentation state of a content on the basis of viewing environment information representing an environment in which the content is to be viewed and presentation state changing information for changing the presentation state of the content in accordance with the environment in which the content is to be viewed, and a content presentation unit adapted to present, on the basis of the setting information, the content to a user via a display device.

Abstract: An information processing apparatus includes a first obtaining unit, a setting unit, and a judgment unit. The first obtaining unit is capable of obtaining current position information. The setting unit is configured to set a first judgment condition to judge whether the current position information obtained by the first obtaining unit is transmitted to a site on a network that requests the current position information. The judgment unit is configured to judge whether the current position information is transmitted to the site on the basis of the first judgment condition set by the setting unit.