Scaled Normalization

Instructions on Use

You need to first set up a schema, a certainty scale and a set of constraints. This can be done in a number of ways.

1. You can add the schema, the scale and the constraint set manually using the fields provided. The schema field and left hand/right hand sides of each constraint expect a comma-delineated list of attributes.  The scale field expects a comma-delineated list of strings.

2. You can click on the Load File button and load a schema/scale/constraint set document into the program. The file must be of a required format. The first line must be a comma separated list of attributes, the second line must be a comma separated list of strings, the third line if not empty must be a comma separated list of strings. Any subsequent lines must consist of individual constraints of the form X -> Y (<index value>) if functional dependencies and X (<index value>) if keys. The file must not end with more than one carriage return sequence.

3. You can enter the data directly in the raw by clicking on Enter Input Directly. The format is the same as above for option 2.

4. You can click on the Generate Randomized Input button. Optionally you can explicitly set the schema size, number of functional dependencies and scale size.

Next you select an algorithm to run using this data. Select from the main algorithms drop-down - in some cases there are sub-options. In most cases you are now required to specify a scale index or beta value.

(In fact if you leave the scale index blank then the algorithms will act as for the classical model).

Using the Constraint Set Window:
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Ensure that you have first selected the constraint set window by clicking in it. Then press the following keys as follows:

'c' - clear the list
'd' - delete the current selected entry
'i' - brings up a screen allowing direct raw entry of data
'l' - brings up a dialog for loading in a file of data
'v' - view the data in format ready for direct entry

Scaled Normalization

Output

View Input Data

Load File

Instructions on Use

Enter Input Data

Instructions on Use

Future Use - Page Two

Future Use - Page Three