Relational agents: A critical review

Relationships between people who meet in virtual worlds are common and these relationships can be long term, in some cases lasting a life-time. Although relationships formed in virtual worlds have invited a lot of recent interest, surprisingly little work has been done on developing computer agents and non-player characters that can actively participate in such relationships. The focus of this review is relational agents, agents that can build long term socio- emotional relationships with users. In virtual worlds, such agents are just starting to emerge; they are more common in other environments but remain few and far between. This review critically assesses the progress of relational agent development and research since their inception in 2005, proposes new areas of research and considers the potential for their exploitation in virtual worlds.

[1]  Timothy W. Bickmore,et al.  Practical approaches to comforting users with relational agents , 2007, CHI Extended Abstracts.

[2]  Maria E. Fernandez,et al.  Planning Health Promotion Programs: An Intervention Mapping Approach , 2006 .

[3]  Clifford Nass,et al.  Are Computers Gender-Neutral? Gender Stereotypic Responses to Computers , 1997 .

[4]  Scott McGlashan,et al.  Olga - a conversational agent with gestures , 2007 .

[5]  Cynthia Breazeal,et al.  Sociable robot systems for real-world problems , 2005, ROMAN 2005. IEEE International Workshop on Robot and Human Interactive Communication, 2005..

[6]  Timothy W. Bickmore,et al.  What Would Jiminy Cricket Do? Lessons from the First Social Wearable , 2007, HCI.

[7]  Seth Stovack Kessler.  Piezoelectric-based in-situ damage detection of composite materials for structural health monitoring systems , 2002 .

[8]  J. Cassell,et al.  Social Dialongue with Embodied Conversational Agents , 2005 .

[9]  J. Cassell,et al.  SOCIAL DIALOGUE WITH EMBODIED CONVERSATIONAL AGENTS , 2005 .

[10]  Timothy W. Bickmore,et al.  Public displays of affect: deploying relational agents in public spaces , 2008, CHI Extended Abstracts.

[11]  Timothy W. Bickmore,et al.  The identification of users by relational agents , 2008, AAMAS.

[12]  Thomas Brown,et al.  Persuasion, Task Interruption and Health Regimen Adherence , 2007, PERSUASIVE.

[13]  Sanghoon Park,et al.  The impact of frustration-mitigating messages delivered by an interface agent , 2005, AIED.

[14]  C. Nass,et al.  Machines and Mindlessness , 2000 .

[15]  K. MacDorman,et al.  Subjective Ratings of Robot Video Clips for Human Likeness, Familiarity, and Eeriness: An Exploration of the Uncanny Valley , 2006 .

[16]  Thomas Brown,et al.  Context Awareness in Mobile Relational Agents , 2007, IVA.

[17]  Anton Nijholt,et al.  Break the Habit! Designing an e-Therapy Intervention Using a Virtual Coach in Aid of Smoking Cessation , 2006, PERSUASIVE.

[18]  Agneta Gulz,et al.  Social enrichment by virtual characters - differential benefits , 2005, J. Comput. Assist. Learn..

[19]  Helen Arnold,et al.  Hitchhiker's guide to the galaxy , 2006, SIGGRAPH '06.

[20]  James C. Lester,et al.  Deictic and emotive communication in animated pedagogical agents , 2001 .

[21]  Boris E. R. de Ruyter,et al.  Assessing the effects of building social intelligence in a robotic interface for the home , 2005, Interact. Comput..

[22]  Timothy W. Bickmore,et al.  Acceptance and usability of a relational agent interface by urban older adults , 2005, CHI Extended Abstracts.

[23]  Timothy W. Bickmore,et al.  Establishing and maintaining long-term human-computer relationships , 2005, TCHI.

[24]  Lincoln Geraghty.  Star Trek Voyager , 2005 .

[25]  Justine Cassell,et al.  Relational agents: a model and implementation of building user trust , 2001, CHI.

[26]  G. Kok,et al.  Intervention Mapping - Designing Theory and Evidence-Based Health Promotion Programs , 2000 .

[27]  Gerjo Kok,et al.  The gay cruise: Developing a theory- and evidence-based Internet HIV-prevention intervention , 2006 .

[28]  Kristina Höök,et al.  Evaluating Users' Experience of a Character-enhanced Information Space , 2000, AI Commun..

[29]  Timothy W. Bickmore,et al.  Health Document Explanation by Virtual Agents , 2007, IVA.

[30]  Rosalind W. Picard,et al.  Establishing the computer-patient working alliance in automated health behavior change interventions. , 2005, Patient education and counseling.

[31]  S. Dabbo,et al.  Motivational Interviewing: Preparing People to Change Addictive Behavior , 1993 .

[32]  Timothy W. Bickmore,et al.  'It's just like you talk to a friend' relational agents for older adults , 2005, Interact. Comput..

[33]  C.D. Kidd,et al.  Designing a sociable robot system forweight maintenance , 2006, CCNC 2006. 2006 3rd IEEE Consumer Communications and Networking Conference, 2006..

[34]  T. Bickmore.  Relational agents : effecting change through human-computer relationships , 2003 .

[35]  Nati Herrasti,et al.  GENIO: an ambient intelligence application in home automation and entertainment environment , 2005, sOc-EUSAI '05.

[36]  Thomas Brown,et al.  Negotiating task interruptions with virtual agents for health behavior change , 2008, AAMAS.

[37]  Timothy W. Bickmore,et al.  Towards caring machines , 2004, CHI EA '04.

[38]  W F Velicer,et al.  Using the Transtheoretical Model for population-based approaches to health promotion and disease prevention. , 2000 .

[39]  James Wexler.  Artificial Intelligence in Games : A look at the smarts behind Lionhead Studio ’ s “ Black and White ” and where it can and will go in the future , .

[40]  Bill Tomlinson,et al.  Social characters for computer games , 2005, Interact. Technol. Smart Educ..

[41]  C. Nass,et al.  Truth is beauty: researching embodied conversational agents , 2001 .