score returned in SentenceTransformersRanker predict() is very low in the newer versions.

[SuryaprakashM]

Earlier was using farm-haystack version 1.1.0 and SentenceTransformersRanker predict() return value had scores close to 1 in the range of (0,1). eg. [<Document: {'content_type': 'text', 'score': 0.608559781677422}>]

After upgrading to the latest version 1.15.1, the same predict() return value scores that are very low close to 0. eg. [<Document: {'content_type': 'text', 'score': 1.229308509209659e-05}>]

Is it expected in the newer versions and if yes, are there any config parameters to be passed to get values closer to 1 as observed in version 1.1.0?

[masci]

Answered in #4712