NLProveNAns: Natural Language Provenance for Non-Answers. - Daniel Deutch; Nave Frost; Amir Gilad; Tomer Haimovich (Proc. VLDB Endow., 2018)

Explaining Missing Query Results in Natural Language. - Daniel Deutch; Nave Frost; Amir Gilad; Tomer Haimovich (EDBT, 2020)