Abstract: Interaction-based pricing of electronic ads is disclosed. An indication is received of a first interaction by an individual with an advertiser at least in part via an electronic advertisement that has been displayed to the individual. The electronic advertisement provides two or more distinct interactions the individual could elect to have at least in part via the advertisement and each of the two or more distinct interactions has associated with it a corresponding interaction-specific value to the advertiser. The advertiser is charged, in response to the indication, an interaction-specific amount associated with the first interaction.

Abstract: A data processing apparatus for propagative correlation can include a memory to store a raw matrix with object identifiers and actor identifiers, in the presence or absence of a quantified matrix element, and a background module to convert the raw matrix into reclassified matrix blocks as a function of a criterion linked to the quantified matrix element. The data processing matrix can also include a selection manager to search for an input actor identifier in a first table, the links of which associate an actor identifier and one or more matrix blocks, and to present information depending on the contents of the associated matrix block or blocks. The background module can also include a cross-classifier to convert the raw matrix of the matrix element and a value matrix of the matrix element. The selection manager operates on the basis of the reclassified matrix blocks.

Abstract: A data processing apparatus for propagative correlation comprises: a memory (4) for storing a raw matrix with object identifiers and actor identifiers, in the presence or absence of a quantified matrix element, a background module (6) for converting the raw matrix into reclassified matrix blocks as a function of a criterion linked to the quantified matrix element, and a selection manager (16) for searching for an input actor identifier in a first table the links of which associate an actor identifier and one or more matrix blocks, and presenting information depending on the contents of the associated matrix block or blocks. The background module comprises a cross-classifier (12) for converting the raw matrix into reclassified matrix blocks according to a criterion that combines a presence metric of the matrix element and a value metric of the matrix element, and the selection manager (16) operates on the basis of the reclassified matrix blocks.

Abstract: 2D imposters representing 3D graphical objects, such as virtual spectators in a simulated sports arena, are dynamically displayed at predefined locations relative to an arbitrarily movable camera position in a virtual space. A hierarchical data structure is created with branches corresponding to iteratively subdivided groups of imposter data structures and is used to store polygon vertices, texture data, and other 2D imposter data generated during run-time. Center locations of the hierarchically divided groupings are used to determine a common projection location within a current view volume at which each 2D imposter is projected as an oriented image from each corresponding animated 3D graphical object. Sets of contiguous 2D imposter data are determined based on currently visible groupings of predefined locations that do not require rendering as 3D graphical objects due to their distance from the camera position. Each set of contiguous 2D imposters is rendered with a single draw primitive.

Abstract: 2D imposters representing 3D graphical objects, such as virtual spectators in a simulated sports arena, are dynamically displayed at predefined locations relative to an arbitrarily movable camera position in a virtual space. A hierarchical data structure is created with branches corresponding to iteratively subdivided groups of imposter data structures and is used to store polygon vertices, texture data, and other 2D imposter data generated during run-time. Center locations of the hierarchically divided groupings are used to determine a common projection location within a current view volume at which each 2D imposter is projected as an oriented image from each corresponding animated 3D graphical object. Sets of contiguous 2D imposter data are determined based on currently visible groupings of predefined locations that do not require rendering as 3D graphical objects due to their distance from the camera position. Each set of contiguous 2D imposters is rendered with a single draw primitive.