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Oracle Data Scrubbing Online System Feedback Loop

Oracle Database Tips by Donald Burleson

Let's take a look at the all-important "feedback loop" in the evolution of a DSS for Oracle data cleansing.

The Feedback Loop

If a suggestion was based on false assumptions or incomplete logic, the expert will works with the Oracle DBA to refine the model, and every iteration of the feedback loop makes the software more intelligent and reliable. 

A system that melds a human expert with a software application that learns from mistakes is called a "Decision Support System" (DSS).  These systems use a "feedback loop" to continuously refine the decision support software, where the human experts explains new rules and exceptions to existing rules to the Oracle database administrator, who incorporates these new logic into the existing data cleansing system.

Over time, these systems get better-and better, and a successful approach generally contains these steps:

STEP 1 - The DSS software collect outliners (based on rules from the human expert)

STEP 2 - The DSS software Check and Validate each outliner

STEP 3 - The DSS software presents the human expert with a system to manage the "suggestions" from the expert system.

STEP 4 - The expert approves or rejects each suggestion:

        Approves "correct" changes (starting an audit) of the change

        OR

        Rejects invalid suggestions, stating the reason (usually an "exception to the rule"), and notifying the DBA to improve the software by incorporating the new decision rule exception.

STEP 5 - We then return to STEP 1, and repeat until:

        We have completely and reliable replicated the decision rules of the human expert

        OR

        Complex human intuition prohibits further refinement of the software.

Graphically, the iterative improvements of Oracle expert systems for data cleansing might look like this (Figure 1):


For expert Oracle data cleansing support and data scrubbing consulting, use an expert from BC.  We understand the powerful Oracle data unification tools, and we can aid in improving the data quality of any Oracle database, large or small.

 

 

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Note: This Oracle documentation was created as a support and Oracle training reference for use by our DBA performance tuning consulting professionals.  Feel free to ask questions on our Oracle forum.

Verify experience! Anyone considering using the services of an Oracle support expert should independently investigate their credentials and experience, and not rely on advertisements and self-proclaimed expertise. All legitimate Oracle experts publish their Oracle qualifications.

Errata?  Oracle technology is changing and we strive to update our BC Oracle support information.  If you find an error or have a suggestion for improving our content, we would appreciate your feedback.  Just  e-mail:  

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