Display screen control method, graphical user interface, information processing apparatus, information processing method, and program

A graphical user interface comprising:

• a display region for displaying an execution screen of an application for displaying, at a display position corresponding to position information, an object corresponding to content data associated with the position information, serving as metadata, representing a location of a feature space defined based on a predetermined feature quantity,
• wherein the content data are clustered into one or a plurality of groups based on the position information in advance, and
• a display state of the object in the execution screen changes according to a clustering result and a distance between a position corresponding to the position information and a central position of the execution screen.

An information processing apparatus comprising:

• a tree structure generation unit that generates a tree structure in which a leaf node represents content data associated with position information, serving as metadata, representing a location of a feature space defined based on a predetermined feature quantity, and a set of nodes whose distance in the feature space satisfies a predetermined condition is defined as a parent node of the nodes satisfying the predetermined condition;
• and
• a node extraction unit that, when any position information is specified, identifies a node in the tree structure to which the specified position information belongs, and extracts, according to a position of the identified node in the tree structure, one or a plurality of nodes, other than the node to which the specified position information belongs, from among the nodes in the tree structure.

A program for causing a computer to realize:

• a tree structure generation function for generating a tree structure in which a leaf node represents content data associated with position information, serving as metadata, representing a location of a feature space defined based on a predetermined feature quantity, and a set of nodes whose distance in the feature space satisfies a predetermined condition is defined as a parent node of the nodes satisfying the predetermined condition;
• and
• a node extraction function for, when any position information is specified, identifying a node in the tree structure to which the specified position information belongs, and extracting, according to a position of the identified node in the tree structure, one or a plurality of nodes, other than the node to which the specified position information belongs, from among the nodes in the tree structure.