Chatbots, also known as intelligent virtual agents or smart advisors, operate using voice and text and utilize natural language understanding (NLU). Some chatbots have only limited conversational capabilities, following predefined dialogues. Other chatbots, however, are capable of learning, as they are based on supervised learning and use learning algorithms to improve their expression and better understand the user. These chatbots are linked to large knowledge databases and can thus continuously evolve.
These chatbots are most commonly found in corporate messaging platforms and websites, where they help users navigate the site and provide them with relevant answers to their questions.