partial information structure
Technical term used in linguistics, information theory, or computer science to refer to a structure that contains only part of the total information. The exact domain depends on context.
In this model, efficient search is achieved by using a partial information structure.
Compound of 部分 (partial) + 情報 (information) + 構造 (structure). The exact origin is uncertain; it is a modern technical term likely coined in academic or engineering contexts.