Learning to Ask Questions in Open-domain Conversational Systems with Typed Decoders
Table 1: Results of automatic evaluation.
['Model', 'Perplexity', 'Distinct-1', 'Distinct-2', 'TRR']
STD and HTD perform fairly well with lower perplexities, higher distinct-1 and distinct-2 scores, and remarkably better topical response ratio (TRR). Note that MA has the lowest perplexity because the model tends to generate more universal responses.