Background Health care and well-being are 2 main interconnected application areas of
conversational agents (CAs). There is a significant increase in research, development, and …

Background Conversational agents (CAs), also known as chatbots, are digital dialog
systems that enable people to have a text-based, speech-based, or nonverbal conversation …

Background Loneliness is a growing public health issue that has been exacerbated in
vulnerable groups during the COVID-19 pandemic. Computer agents are capable of …

To assist personalized healthcare of elderly people, our interest is to develop a virtual
caregiver system that retrieves the expression of mental and physical health states through …

Background The worldwide aging trend requires conceptually new prevention, care, and
innovative living solutions to support human-based care using smart technology, and this …

Background The rising prevalence of noncommunicable diseases (NCDs) worldwide and
the high recent mortality rates (74.4%) associated with them, especially in low-and middle …

Large language model (LLM)–powered services are gaining popularity in various
applications due to their exceptional performance in many tasks, such as sentiment analysis …

Embodied conversational agents (ECAs) show promise for use as companions in emotional
support applications, although real world uptake can be low. Incorporating closeness …

Background Embodied conversational agents (ECAs) are computer-generated animated
humanlike characters that interact with users through verbal and nonverbal behavioral cues …

Background: Social distancing and stay-at-home orders are critical interventions to slow
down person-to-person transmission of COVID-19. While these societal changes help …