Selecting a set of fast computable functions to assess core properties of entities

A computer program product comprising:

• one or more computer readable storage media, and program instructions collectively stored on the one or more computer readable storage media, the program instructions comprising:
• program instructions to generate a directed graph modeling dependencies between a plurality of fast computable function nodes, representing an original set of fast computable functions that generate values to determine core properties of crude oil, and a plurality of core property nodes representing the core properties of the crude oil, wherein the core properties comprise physical properties, chemical properties, or physical and chemical properties;
• program instructions to determine, for each of the plurality of fast computable function nodes, a set of core property nodes of the plurality of core property nodes in the directed graph that are connected to the fast computable function node;
• program instructions to add, to a solution set, a fast computable function node that is connected to a highest number of core property nodes that are currently unconnected to nodes in the solution set;
• program instructions to repeat the adding until each of the core property nodes is connected to at least one of the nodes in the solution set;
• and
• program instructions to perform a crude oil assay, thereby generating assay results including the core properties of the crude oil, by executing fast computable functions corresponding to each of the fast computable function nodes in the solution set wherein the fast computable functions in the solution set comprises a subset of the original set of fast computable functions.

A system comprising:

• a hardware processor, a computer readable memory, and one or more computer readable storage media associated with a computing device;
• program instructions to receive a request to select a set of fast computable functions to determine core properties of an entity;
• program instructions to generate a directed graph modeling dependencies between a plurality of fast computable function nodes representing fast computable functions that determine the core properties of the entity and a plurality of core property nodes representing the core properties of the entity;
• program instructions to determine, for each of the plurality of fast computable function nodes in the directed graph, a set of core property nodes of the plurality of core property nodes in the directed graph that are connected to the fast computable function node;
• program instructions to add, to a solution set, a fast computable function node that is connected to a highest number of core property nodes that are currently unconnected to nodes in the solution set;
• program instructions to repeat the adding until each of the core property nodes is connected to at least one of the nodes in the solution set;
• and
• program instructions to output the fast computable function nodes in the solution set in response to the request to select the set of fast computable functions,
• wherein the program instructions are stored on the one or more computer readable storage media for execution by the hardware processor via the computer readable memory.