Simulation technique for generation of AVM and collateral risk indicator rule set

• US 20080015876A1
• Filed: 07/11/2006
• Published: 01/17/2008
• Est. Priority Date: 07/11/2006
• Status: Abandoned Application

• Current Assignee: Residential Funding Corp. (Ally Financial, Inc.)
• Original Assignee: Residential Funding Corp. (Ally Financial, Inc.)
• Inventors: Harasimowicz, Beth A., Allen, Susan Harper
• Application Number:
  US11/484,262
• Publication Number:
  US 20080015876A1
• Time in Patent Office: Days
• US Class Current: 705/1
• CPC Class Codes: G06Q 30/0278 Product appraisal
• CPC Class Codes: G06Q 40/00 Finance; Insurance; Tax strategies; Processing of corporate or income taxes
• CPC Class Codes: G06Q 40/02 Banking, e.g. interest calculation or account maintenance credit or loans G06Q40/03

Abstract

An automated system is presented to create sequence of rules for submission of loan data to automated valuation models (or AV Ms) and collateral risk indicators (CRIs.) The present invention combines CRI analysis with a program to simulate, within specific geographical locations and at multiple price tiers, possible combinations of three factors: AVM order, confidence score limit, and AVM-to-estimated value ratio. Data are run through each combination to find those combinations that product an acceptable hit rate and accuracy while meeting the risk requirements of the lender. This results in a rule set that includes sequence rules that contain the proper sequence for AVM and CRI requests for that property and qualification rules that define confidence score cutoffs and acceptable AVM-to-estimated value ratios.

Claims

1. A computerized method for the creation of rules governing the source and qualification of property valuations from a plurality of automated valuation models (AVMs) and collateral risk indicators (CRIs) comprising:

a) testing the CRIs against known overvaluation results in order to generate CRI analysis results;

b) testing the AVMs against known property values in order to generate AVM analysis results;

c) generating rule sets based upon the AVM and CRI analysis results by performing the following steps in at least one computer system;

i) creating multiple combinations of data sets, the combinations each containing a different combination of CRI order, CRI score limit, AVM order, confidence score limit, and AVM-to-estimated value ratio cap, wherein the CRI order is a listing of available CRIs in a sequenced order, CRI score is an estimate of overvaluation risk, AVM order is a listing of available AVMs in a sequenced order, confidence score is an estimate of confidence in the valuation returned by the AVM, and AVM-to-estimated value ratio is the ratio of returned AVM valuation compared to the estimated value provided by a property owner;

ii) using the AVM analysis results for performing simulations over the various multiple combinations; and

iii) using results from the simulations for selecting a combination as a rule set where the combination meets a minimum risk tenet and produces a qualified hit rate; and

iv) using the rule set to submit properties to the plurality of CRIs and AVMs and to evaluate the valuations returned.

2. The method of claim 1, wherein multiple rule sets are created, with each rule set being assigned to a specific geographic area.

3. The method of claim 1, wherein multiple rule sets are created, with each rule set being assigned to a property price tier.

4. The method of claim 1, wherein multiple rule sets are created, with each rule set being assigned to a property price tier for a specific geographic area.

5. A computerized method for submitting loan data to a plurality of automated valuation model (AVMs) comprising:

a) testing the AVMs against known property values in order to generate AVM analysis results;

b) generating rule sets based upon the AVM analysis results by performing the following steps in at least one computer system;

i) creating multiple combinations of data sets, the combinations each containing a different combination of AVM order, confidence score limit, and AVM-to-estimated value ratio cap, wherein the AVM order is a listing of available AVMs in a sequenced order, confidence score is a valuation of confidence returned by the AVM, and AVM-to-estimated value ratio is the ratio of returned AVM valuation over the estimated value provided by a property owner,

ii) using the AVM analysis results for performing simulations over the various multiple combinations, and

iii) using results from the simulations for selecting a combination as a rule set where the combination meets a minimum risk tenet and produces a qualified hit rate; and

c) using the rule set to submit loan data to the plurality of AVMs and to evaluate the returned results.