| 摘要 |
Embodiments of the present invention are directed to selecting a portfolio. One embodiment of the present invention includes identifying a network comprising a source node, a target node, a first set of intermediate nodes that correspond to a set of objects from which a portfolio is selected, a second set of intermediate nodes, and a plurality of directed links. Also, the embodiment comprises initializing a network flow through the directed links and redistributing the flow through a subset of the plurality of directed links including directed links extending between the source node and the first set of intermediate nodes, between the first set of intermediate nodes and the second set of intermediate nodes. Further, the embodiment includes identifying members of the portfolio by determining which nodes of the first set of intermediate nodes have a network flow from the source node equal to or greater than a threshold value.
|
