Method of interaction




Virtual assistants work via:

  • Text, including: online chat (especially in an instant messaging app or other app), SMS Text, e-mail or other text-based communication channel, for example Conversica's Intelligent Virtual Assistants for business.
  • Voice, for example with Amazon Alexa on the Amazon Echo device, Siri on an iPhone, or Google Assistant on Google-enabled/Android mobile devices
  • By taking and/or uploading images, as in the case of Samsung Bixby on the Samsung Galaxy S8

Some virtual assistants are accessible via multiple methods, such as Google Assistant via chat on the Google Allo and Google Messages app and via voice on Google Home smart speakers.

Virtual assistants use natural language processing (NLP) to match user text or voice input to executable commands. Many continually learn using artificial intelligence techniques including machine learning. Some of these assistants like Google Assistant(which contains Google Lens) and Samsung Bixby also have the added ability to do image processing to recognize objects in the image to help the users get better results from the clicked images.

To activate a virtual assistant using the voice, a wake word might be used. This is a word or groups of words such as "Hey Siri", "OK Google" or "Hey Google", "Alexa", and "Hey Microsoft". As virtual assistants become more popular, there are increasing legal risks involved.:815

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