Iulian Serban2 papers on this site (2015–2019)The Second Conversational Intelligence Challenge (ConvAI2)Emily Dinan, Varvara Logacheva, Valentin Malykh, et al.2019The Ubuntu Dialogue Corpus: A Large Dataset for Research in Unstructured Multi-Turn Dialogue SystemsRyan Lowe, Nissan Pow, Iulian Serban, et al.2015