[TEXT-206] JaroWinklerDistance returning its compliment, ie 1 - distance

• Type: Bug
• Status: Resolved
• Priority: Critical
• Resolution: Duplicate
• Affects Version/s: 1.9
• Labels: distance
• Environment: Mac OS, jdk-15.0.1.jdk
• Assignee: Unassigned
• Reporter: Glen Edmonds
• Created: 11/May/21 21:41
• Updated: 12/May/21 00:39
• Resolved: 11/May/21 22:46

Description

This class is returning 1 - distance, but its contract is to return distance.

These are some examples from in the javadoc of the apply() method:

distance.apply("foo", "foo") = 0.0
distance.apply("hello", "hallo") = 0.12
distance.apply("fly", "ant") = 1.0

but execution of the method produces the compliment: 1.0, 0.88 and 0.0

Test code:

System.out.println(new JaroWinklerDistance().apply("foo", "foo"));
System.out.println(new JaroWinklerDistance().apply("hello", "hallo"));
System.out.println(new JaroWinklerDistance().apply("fly", "ant"));

Actual output:

1.0
0.88
0.0

Expected output:

0.0
0.12
1.0

Java version: jdk-15.0.1.jdk

Issue Links

• is duplicated by: TEXT-191 JaroWinklerDistance returns the same values as JaroWinklerSimilarity