Importance

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Abstract

In one embodiment, a data structure comprises: a primary index comprising one or more position-block references; and one or more position blocks sequentially following the primary index, wherein: each one of the position-block references corresponds to one of the position blocks; and each one of the position blocks comprises: a secondary index comprising one or more position-data references; and one or more sets of positions sequentially following the secondary index, wherein each one of the position-data references corresponds to of one of the sets of positions in the position block. In one embodiment, an instance of the data structure is stored in a computer-readable memory and accessible by an application executed by a process.

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First Claim