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DREAM Technical Report for the Alexa Prize 4

Alexa Prize Proceedings, 2021.
Baymurzina D., Kuznetsov D., Evseev D., Karpov D., Sagirova A., Peganov A., Ignatov F., Ermakova E., Cherniavskii D., Kumeyko S., Oleg Serikov, Kuratov Y., Ostyakova L., Kornev D., Burtsev M.

In this report, we present the DREAM 2 Socialbot design and share scientific
and technology contributions made towards developing a fluent and meaningful
socialbot for Alexa Prize 4. Building on top of the last year’s solution we added a
rich plethora of the script-driven skills created with the help of the novel Dialogue
Flow Framework. To lay down the foundation for the discourse-driven dialogue
strategy management we introduced tag-based Response Selector and Speech
Functions Classifier. We also began working on User and Bot Persona Knowledge
Graphs as well as incorporated our work on World Knowledge Graph alongside
with Entity Linking. The final version of DREAM 2 Socialbot is still a hybrid
system that combines rule-based, deep learning, and knowledge based driven
components, but it moves closer to a goal-aware system that can recognize users’
and own goals and drive the dialogue strategically












DREAM Technical Report for the Alexa Prize 4