A hierarchical spatial encode structure stored on a computing device is disclosed. The hierarchical spatial encode structure includes a plurality of scale levels having a plurality of encode expressions for a multi-scale context. The encode expressions on a first of the scale levels may include a first length. The encode expressions on a second of the scale levels may include a second length greater than the first length. Each encode expression of the second of the scale levels may include one or more of the encode expressions of the first of the scale levels. A context of the first of the scale levels may have a contain/nest (contained) spatial relation to a context of the second of the scale levels.