| Patent application number | Description | Published |
|---|
| 20090222782 | NETWORK ANALYSIS WITH STEINER TREES - Networks may be analyzed using Steiner trees. In an example embodiment, a method includes acts of receiving, accepting, creating, and analyzing. Data specifying a network is received. Steiner tree parameters are accepted. A Steiner tree model is created on the data specifying the network responsive to the Steiner tree parameters. The Steiner tree model includes a local representation having a depth constraint for neighborhood vertices. The data specifying the network is analyzed to ascertain a Steiner tree solution based on the Steiner tree model, which includes the local representation, and using a locally-oriented combinatorial algorithm. | 09-03-2009 |
| 20110252121 | RECOMMENDATION RANKING SYSTEM WITH DISTRUST - A recommendation ranking system that computes trust for entities based on negative expressions of trust. Negative expressions of trust are used to reduce the trust of entities. However, the system may discount entities that in the aggregate are distrusted. The system may be used with a social network to provide accurate, personalized recommendations for members of the social network. The network may be modeled as a voting network, with each member of the social network represented as a node and expressions of trust between members represented as weights on edges between nodes. Values of trust may be computed for nodes in the network and used to generate a recommendation. Opinions expressed on a topic may be weighted by trust in the node expressing the opinion. The system may be applied in other settings that can be modeled as a voting network, including ranking of Internet search results. | 10-13-2011 |
| 20120095940 | PRICING MECHANISMS FOR PERISHABLE TIME-VARYING RESOURCES - A price determination module (PDM) is described herein which defines price information for perishable resource items subject to variable supply and demand. The price information specifies pricing options for consideration by consumers. In one approach, the PDM provides a plurality of per-instant pricing options, where each pricing option defines a price for a resource item in a particular time instance. In another approach, the PDM provides a plurality of per-contract pricing options, where each pricing option defines a price for a resource item in a particular time segment. The PDM can determine the pricing options by formulating and solving an optimization problem, e.g., using a dynamic programming technique. The optimization problem can be constrained by either hard or soft capacity constraints. | 04-19-2012 |
| 20120109705 | DATA CENTER SYSTEM THAT ACCOMMODATES EPISODIC COMPUTATION - A data center system is described which includes multiple data centers powered by multiple power sources, including any combination of renewable power sources and on-grid utility power sources. The data center system also includes a management system for managing execution of computational tasks by moving data components associated with the computational tasks within the data center system, in lieu of, or in addition to, moving power itself. The movement of data components can involve performing pre-computation or delayed computation on data components within any data center, as well as moving data components between data centers. The management system also includes a price determination module for determining prices for performing the computational tasks based on different pricing models. The data center system also includes a “stripped down” architecture to complement its use in the above-summarized data-centric environment. | 05-03-2012 |
