2022-06-292022-06-292021-06-02SOUZA, Luiz Yokoyama Felix de. Vendedor virtual com PLN, machine learning e grafos de conhecimento. 2021. 72 f. Trabalho de Conclusão de Curso (Graduação) - Escola de Engenharia Elétrica, Mecânica e de Computação, Universidade Federal de Goiás, Goiânia, 2021.http://repositorio.bc.ufg.br/handle/ri/20893The information age, provided by the internet, is revolutionizing the ways in which services are offered. In this scenario, chatbots, automated response programs in dialog interfaces, are on the rise. However, it usually only have pre-programmed responses and the most common options, which can cause discontent in the user. The objective of this work is a research applied to the design of a chatbot model, with artificial intelligence, capable of interacting in the user’s natural language, emitting responses like those of a human within his area of activity, which, in this case, is the sales area. Thus, a chatbot model was developed and evaluated using the Rasa framework, based on new methods for obtaining artificial intelligence training data. A Knowledge Graph model has also been developed that can provide more quality to the service provided, offering products and understanding details, including the misspellings of messages.porAcesso AbertoChatbotRasaInteligência artificialGrafos de conhecimentoChatbotKnowledge graphsArtificial intelligenceRasaTCC