Method and system of prioritising operations

A system for prioritizing a web crawling operation, the system comprising:

• an analyzer configured to calculate an importance score of a first data object as a function of
• a update rate at which said first data object is updated by a first user, and
• a social rank score of said first user;
• and
• a prioritizing module configured to establish, as a function of said importance score, a priority with which said first data object is to be crawled.

A computer program product for building an expression, the computer program product comprising:

• a computer-readable storage medium;
• and
• computer-readable program code embodied in the computer-readable storage medium,
• where the computer-readable program code is configured to
• calculating an importance score of a first data object as a function of
• a update rate at which said first data object is updated by a first user, and
• a social rank score of said first user;
• and
• establishing, as a function of said importance score, a priority with which said first data object is to be crawled.