Branches of Conversational UI –
Conversational User Interface : It is an interface that allows interaction with users in a more personalized way i.e it mimics human conversation.
Voice User Interface : It is an interface that allows interaction with users through speech or voice-based commands. Amazon Alexa, Echo Dot, Google Home, Google Mini, Siri, Cortana, and the Google Assistant are the examples of VUI devices which take voice /speech as an input and returns in the same manner.
Types Of Chatbot –
Mainly, chatbots are classified into three types: Rule-Based, AI-Based and Hybrid.
- Rule Based Chatbot: It is also known as Decision treebots. It has a set of predefined responses from a database for a particular query based on the keywords uttered in the query. So it can be tedious to extract a very lengthy and informative response from the bot. It is just like a decision tree. It gives a response based on the keywords extracted from the user’s utterance. Most of them don’t use NLP/NLU. The advantage of using this type of is that it is economic.
- AI Based Chatbot: They are built using ML, NLP/NLU. It also provides answers from a given database but the thing that makes it unique is that it becomes more intelligent over time with the help of past interactions with the users.
- Hybrid Chatbot: These are the most common type of chatbot. It is basically a mix of both Rule-based and AI-based chatbots. They interact with humans and provide a personalized reply i.e It can start the conversation with the user but when the conversation gets deeper chatbot can be replaced by a human being.
Intent, Entity, And Utterance –
Intent: An intent represents the purpose of a user’s input. i.e What is the speaker is trying to do?
Entity: An entity represents a term or object that is relevant to your intents and that provides a specific context for intent or it can be referred to like the things that the speaker is referring to.
Utterance: A Utterance is a branching conversation flow that defines responses to the defined intents and entities. In IBM Watson instead of the word Utterance we use the dialog.
