Objective Our objective was to review the characteristics, current applications, and
evaluation measures of conversational agents with unconstrained natural language input …

Conversational agents (CAs) with voice interfaces are becoming ubiquitous and are
routinely used by a wide range of individuals. Users with vision and mobility issues can …

Nowadays, conversational agents are solutions that can provide a highly valuable addition
to the existing healthcare services to assist the elderly in following their care plans and …

We present Daisy, a voice-controlled conversational agent embodied as a household potted
flower. Daisy has been designed for the needs of older adults, providing companionship in …

Conversational interfaces have a long history, starting in the 1960s with text-based dialog
systems for question answering and chatbots that simulated casual conversation. Speech …

Conversational agents continue to permeate our lives in different forms, such as virtual
assistants on mobile devices or chatbots on websites and social media. The interaction with …

Conversational Health Agents (CHAs) are interactive systems designed to enhance
personal healthcare services by engaging in empathetic conversations and processing …

Conversational agents (CA) use dialogues to interact with users so as to offer an experience
of naturalistic interaction. However, due to the low transparency and poor explanability of …

Artificial intelligence (AI) has transformed the world and the relationships among humans as
the learning capabilities of machines have allowed for a new means of communication …

Intelligent conversational assistants have become an integral part of our lives for performing
simple tasks. However, such agents, for example, Google bots, Alexa and others are yet to …