David R Heath

US Patent:

8457997, Jun 4, 2013

Filed:

Aug 30, 2005

Appl. No.:

11/215737

Inventors:

Keshav Narayanan - Houston TX, US
David Heath - Highlands Ranch CO, US
Alvin Stanley Cullick - Houston TX, US

Assignee:

Landmark Graphics Corporation - Houston TX

International Classification:

G06Q 10/00

US Classification:

705 711, 705 28, 705 36 R, 703 2, 703 9, 703 10

Abstract:

A client-server based system for building and executing flows (i. e. , interconnected systems of algorithms). The client allows a user to build a flow specification and send the flow specification to the server. The server assembles the flow from the flow spec and executes the flow. A decision flow builder allows the user to build a flow targeted for the analysis/optimization of decisions (modeled by decision variables) regarding a plurality of assets in view of various underlying uncertainties (modeled by uncertainty variables). The user may specify a global objective (as a function of asset level statistics) as well and one or more constraints for the optimization. The flow may account for inter-asset correlations and inter-asset dependencies between uncertainty variables, and, inter-asset constraints between decision variables.

US Patent:

8458000, Jun 4, 2013

Filed:

May 17, 2012

Appl. No.:

13/473720

Inventors:

Keshav Narayanan - Houston TX, US
David E. Heath - Highlands Ranch CO, US
Alvin Stanley Cullick - Houston TX, US

Assignee:

Landmark Graphics Corporation - Houston TX

International Classification:

G06Q 10/00

US Classification:

705 711, 703 2, 703 10, 705 28, 705 36 R

Abstract:

A client-server based system for building and executing flows (i. e. , interconnected systems of algorithms). The client allows a user to build a flow specification and send the flow specification to the server. The server assembles the flow from the flow spec and executes the flow. A flow may be configured to analyze the impact (e. g. , the financial impact) of a number of uncertainties associated with a plurality of assets. Uncertainty variables are used to characterize the uncertainties associated with the assets. An uncertainty variable associated with one asset may be functionally dependent on an uncertainty variable associated with another asset.

US Patent:

8209202, Jun 26, 2012

Filed:

May 1, 2006

Appl. No.:

11/415394

Inventors:

Keshav Narayanan - Houston TX, US
David E. Heath - Highlands Ranch CO, US
Alvin Stanley Cullick - Houston TX, US

Assignee:

Landmark Graphics Corporation - Houston TX

International Classification:

G06Q 10/04
G06F 9/455

US Classification:

705 711, 705 728, 703 2, 703 9, 703 10

Abstract:

A client-server based system for building and executing flows (i. e. , interconnected systems of algorithms). The client allows a user to build a flow specification and send the flow specification to the server. The server assembles the flow from the flow spec and executes the flow. A flow may be configured to analyze the impact (e. g. , the financial impact) of a number of uncertainties associated with a plurality of assets. Uncertainty variables are used to characterize the uncertainties associated with the assets. An uncertainty variable associated with one asset may be functionally dependent on an uncertainty variable associated with another asset.