1. A system comprising: at least one non-transitory computer-readable storage medium to store electronically-represented projects represented by computer-accessible data; at least one processor; a project-comparator subsystem executable on the at least one processor to generate a similarity metric for input electronically-represented projects input to the project-comparator subsystem; a project search engine executable on the at least one processor to: receive data that represents a first electronically-represented project, identify, by pairwise comparison of the stored electronically-represented projects with the first electronically-represented project using the project-comparator subsystem, a stored electronically-represented project with greatest similarity to the first electronically-represented project, and output an indication of the identified stored electronically-represented project; and a learning module executable on the at least one processor to: receive feedback regarding electronically-represented projects identified as being similar to at least one electronically-represented project by the project search engine; and compute adjustments to the project-comparator subsystem in response to the received feedback.