Hi,
>> > [...]
>> Solution 3 is "ClusterRanking".
>> In cases where the reference algorithm would assume the
>> other convention (i.e. "lower is better"), the implementation
>> is required to apply a conversion (e.g. return the opposite).
>
>s/opposite/inverse/
>
>[We should probably enforce that ranking is positive.]
>
How do we trade this situation with different rank rules(lower is better, or
higher is better):
```java
if (evaluator.isBetterScore(varianceSum, bestVarianceSum)) {
// this one is the best we have found so far, remember it
best = clusters;
bestVarianceSum = varianceSum;
}
```
>Gilles
>
>>>> [...]
>
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