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Sources of trust in intelligent virtual assistants
Janouš, Jakub ; Numerato, Dino (advisor) ; Kabele, Jiří (referee)
The diploma thesis deals with the sources of trust in artificial intelligence, and how these sources are conditioned by social representations. It examines what risks the user is aware of when using artificial intelligence and how various factors affect the user's thinking. Artificial intelligence is represented in my work by intelligent virtual assistants (IVA). Based on semi-structured research interviews with their users, I have identified as the main sources of trust: neutrality, belief in the future, fulfillment of expectations and closeness. The first two sources are constant and based on social structure, while the last two sources of trust are based directly on user experience and are variable over time. It was also found that social representations have a significant impact on sources of trust. I divided all social representations into three categories - mechanicality, personification, intangibility, according to which the user's perception of artificial intelligence could be assessed and, based on that, his thinking about it. Because of this, I have proved that the trust of users is conditioned by social representations. An important part of trust is risk awareness. In my work, I have identified six main risks that users are aware of: unexpected software error, mechanical error, misuse of...
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Mobile personal assistants
Techl, Jan ; Sigmund, Tomáš (advisor) ; Labský, Martin (referee)
This thesis focuses on analysis, definition and description of mobile personal assistants as a phenomenon emerging in past few years. Mobile personal assistants are first mentioned in the context of computational linguistics and information needs, which is one of the motivations to use them. Main interest of this thesis is an introduction of the core technologies for the natural language communication between the assistant and its user, followed by an introduction of host environments and possible usage. The thesis also presents the limitations and risks resulting from using them, which are in some ways affecting their usability. Beside the analysis the main focus is on the design and implementation of the natural language understanding (NLU) system, which can be used in particular personal assistant application. This system is implemented as a web service and consists of an annotation scheme with a set of components. The results show that the system architecture and tools used are suitable solution for the construction of a basic NLU system, which has been created and which is in the compliance with the requested parameters. It is still difficult task to achieve high precision, which depends on many factors including the amount of training data, which was very small in this case. However, the resulting application is a solid starting point for its further development and extensions.
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