Abstract: We present TruthBot, an all-in-one multilingual conversational chatbot
designed for seeking truth (trustworthy and verified information) on specific
topics. It helps users to obtain information specific to certain topics,
fact-check information, and get recent news. The chatbot learns the intent of a
query by training a deep neural network from the data of the previous intents
and responds appropriately when it classifies the intent in one of the classes
above. Each class is implemented as a separate module that uses either its own
curated knowledge-base or searches the web to obtain the correct information.
The topic of the chatbot is currently set to COVID-19. However, the bot can be
easily customized to any topic-specific responses. Our experimental results
show that each module performs significantly better than its closest
competitor, which is verified both quantitatively and through several
user-based surveys in multiple languages. TruthBot has been deployed in June
2020 and is currently running.