Recurrent neural network language generation for spoken dialogue systems.

•RNNLG framework for language generation.•Heuristically gated LSTM generator.•Semantically controlled LSTM generator.•Attentive encoder decoder generator.•Data counterfeiting.•Discriminative training.•Corpus-based evaluation in a single domain setting.•Human evaluation in a single domain setting.•Corpus-based evaluation for domain adaptation.•Human evaluation for domain adaptation.