The present invention provides system, methods, and apparatus for organizing objects obtained from data retrieval. It provides a method to assemble the objects into a set based upon their relevance ranking, associated metadata including categories, and the proximity of these categories in a graph. The method provides for selecting objects according to estimated difficulty, resource type, media format, or other criteria. It also provides for connecting objects into a best path in the graph. It also provides for selecting objects to fit a desired total duration and coverage of relevant categories in the graph. It also provides for organizing the objects into a particular sequence according to the particular metadata. The system, methods, and apparatus are suitable for use in information systems, learning management systems, and other systems employing data retrieval.