Abstract: Consistent with embodiments of the present invention, a method may be provided comprising receiving a search string corresponding to a desired node comprising a target parameter, a policy parameter, and a class parameter. The target parameter may be referenced with a target index table to determine which interfaces to search. The policy parameter may be referenced with a policy index table to determine a node-id of a policy node corresponding to the policy parameter. A level for the desired node may be determined based on the node-id. The class parameter may be referenced with the determined node-id with a class index table to access a bucket location. The desired node may then be searched for with the determined node-id at the determined level.

Abstract: Consistent with embodiments of the present invention, a method may be provided comprising receiving a search string corresponding to a desired node comprising a target parameter, a policy parameter, and a class parameter. The target parameter may be referenced with a target index table to determine which interfaces to search. The policy parameter may be referenced with a policy index table to determine a node-id of a policy node corresponding to the policy parameter. A level for the desired node may be determined based on the node-id. The class parameter may be referenced with the determined node-id with a class index table to access a bucket location. The desired node may then be searched for with the determined node-id at the determined level.

Abstract: A method and a system to provide real-time bidding in online auction. For example, a system may comprise a notification module to generate and transmit a notification to a client machine. The notification may be generated based on a defined end time of a selected auction. A subscription module may establish electronic communication with the client machine responsive to a subscription message received from the client machine in response to the notification. In some instances, the electronic communication is established using a push technology. An event filter may filter an event from a plurality of events related to the selected auction where the filtered event is a highest received bid in the selected auction. The filtered event may then be pushed to the client machine by the subscription module.

Abstract: Prices may be estimated using a system comprising a data exporter to export auction transaction data from an online auction system; a data processor to filter, condition, aggregate, and/or model the auction transaction data; and a data presenter to present the filtered, conditioned, aggregated, and/or modeled auction transaction data indicating estimated prices based on the auction transaction data. Additional apparatus, systems, and methods are disclosed.