* Add lost in the middle ranker
* Add release note
* Julian's feedback: more precise version of truncate
* Better comments for the litm algorithm
* Sebastian PR feedback
* Add check for invalid values of word_count_threshold
* Remove _truncate as it is not needed any more
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Co-authored-by: Darja Fokina <daria.f93@gmail.com>
* recency reranker code
* removed
* readd
* edited code
* edit
* mypy test fix
* adding warnings for score method
* fix
* fix
* adding paper link
* comments implementation
* change to predict and predict_batch
* change to predict and predict_batch 2
* adding unit test
* fixes
* small fixes
* fix for unit test
* table driven test
* small fixes
* small fixes2
* adding predict_batch tests
* add recentness_ranker to api reference docs
* implementing feedback
* implementing feedback2
* implementing feedback3
* implementing feedback4
* implementing feedback5
* remove document_map, remove final check if score is not None
* add final check if doc score is not None for mypy
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Co-authored-by: Darja Fokina <daria.f93@gmail.com>
Co-authored-by: Julian Risch <julian.risch@deepset.ai>
