Compare includes the following tasks:
Compare two values of the same field type and view the match score, along with details about how the match score was determined. The compare can be between a search value and a matched value or two new terms.
Modify the settings and see how the match score changes.
View match scores and understand how the score was determined. .
To open the Compare tab:
Click on Compare from the Global Navigation bar or
Click on the compare icon 
in the search results. When navigating to compare from the results lists, the compare values will be pre-filled with the search value and the results value.
To compare two values:
Enter two values to compare. The values might be the search value with a matched value, or two new values. These will be pre-filled for you when navigating from the search results list.
Optional If comparing Names, select the language of each value from the drop-down list.
Select Compare.
The Match Score Computation is a tabular representation of the component scores that explain how the final match score was determined.
To view and modify the advanced settings , click on the settings icon 
in the upper right corner.
The Match Score Computation is a tabular representation of the component scores that explain how the final match score was determined. For Name fields, this includes:
The tokens from Name 1 are listed down the first column, while the tokens from Name 2 are along the top row.
The shaded boxes highlight the token pairs selected during matching that produce the best score. A token pair is a token from Name 1 and its matching token from Name 2. Each shaded box contains a Match Reason and a match value.
The top line indicates Match Reason.
The match value takes into consideration the placement of the token in the score calculation. A penalty is applied if the tokens are out of order. When the tokens line up on the diagonal, they are all in order.
Under each token is a weight. The weightings determine how important the token pair match is in calculating the final score. Unusual tokens get a higher weighting than common names because it is more significant when they match and initials are weighted less than full names.
To view and modify the advanced settings, click on the settings icon in the upper right corner.
For more detail about the match score, select Explanation
Modify the match parameters in real-time to see how each value impacts the final match score.
Tip
To view and modify these settings, click on the settings icon in the upper right corner of the compare window. Change the value of interest, and select Compare. Changes will be applied just to the pairwise match currently displayed; overall system search settings are not modified.
Tip
Default values are set based on the name type (person, organization, or location) and the languages. Reset sets the values back to their default settings.
The url copied by the copy url 
in the upper right corner contains the advanced settings values.
Rosette Match Studio calculates the match score based on five different components:
Time: The number of days between Date 1 and Date 2.
Year: The difference of the year fields of Date 1 and Date 2.
Month: The difference of the month fields of Date 1 and Date 2.
Day The difference of the day fields of Date 1 and Date 2. 1 and 30 are far apart, even if they are close in time.
String The string distance is calculated by converting Date 1 and Date 2 to a standard format. The score is calculated on the edit distance between the two strings.
For more detail about the match score, select Explanation.
Rosette Match Studio supports a wide variety of date formats.
Days can be represented by 1 or 2 digits
Months can entered as numerics (1 or 2 digits) or English characters (full name or 3 character abbreviation)
Years can be represented as 1, 2, 3 or 4 digits
Supported delimiters include , . - /, as well as a space
Partial fields can be entered
Examples: All of the following are acceptable:
3/24/1984
March 1984
3-24
-24-84
March 24, 1984
24-3-84
March
1984