Batch effect correction (Harmony / MNN / Scanorama)

Haghverdi-Lun-Marioni 2018 MNN / Korsunsky 2019 Harmony / Hie-Bryson-Berger 2019 Scanorama: remove technical-batch artefacts in scRNA integration via mutual-nearest-neighbours / soft-clustering / panoramic-anchor. Critical for…