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[ML] Investigate / fix degraded anomaly detection performance on specific QA test sets #2665

Open jan-elastic opened 3 months ago

jan-elastic commented 3 months ago

The CStringStore removal has caused degraded performance on a few QA test sets (next to improved / neutral performance on many others, so this doesn't warrant reverting). Investigate what causes this and, if possible, fix it.

The affected test sets are:

See also: this QA issue.

Note: no slowdown has been observed locally on MacOS, so this probably needs investigation on Linux or Windows.