Degrees of unsolvability associated with Markov algorithms. - Charles E. Hughes (Int. J. Parallel Program., 1972)

POPSS - a parametric operating system simulator. - Justin C. Walker; Charles E. Hughes (SIGCSE, 1973)

Many-one Degrees Associated with Semi-Thue Systems. - Charles E. Hughes (J. Comput. Syst. Sci., 1973)

Many-one Degrees Associated With Problems of Tag. - Charles E. Hughes (J. Symb. Log., 1973)

Combinatorial systems with axiom. - Charles E. Hughes; Wilson E. Singletary (Notre Dame J. Formal Log., 1973)

Single Premise Post Canonical Forms Defined Over One-Letter Alphabets. - Charles E. Hughes (J. Symb. Log., 1974)

Combinatorial systems defined over one- and two-letter alphabets. - Charles E. Hughes; Wilson E. Singletary (Arch. Math. Log., 1975)

Triadic partial implicational propositional calculi. - Charles E. Hughes (Math. Log. Q., 1975)

Sets derived by deterministic systems with axiom. - Charles E. Hughes (Math. Log. Q., 1975)

The general decision problem for Markov algorithms with axiom. - Charles E. Hughes (Notre Dame J. Formal Log., 1975)

ASSIST-V: A tool for studying the implementation of operating systems. - Charles E. Hughes; Charles P. Pfleeger (SIGCSE-SIGCUE, 1976)

Two Variable Implicational Calculi of Prescribed Many-One Degrees of Unsolvability. - Charles E. Hughes (J. Symb. Log., 1976)

A Reduction Class Containing Formulas with one Monadic Predicate and one Binary Function Symbol. - Charles E. Hughes (J. Symb. Log., 1976)

ORACLE a tool for learning compiler writing. - William R. Haynes; Charles E. Hughes; Charles P. Pfleeger (SIGCSE-1, 1977)

The one-one equivalence of some general combinatorial decision problems. - Charles E. Hughes; Wilson E. Singletary (Notre Dame J. Formal Log., 1977)

An integrated small computer laboratory using a central disk storage facility. - J. Michael Moshell; Charles E. Hughes; Robert M. Aiken (SIGCSE, 1978)

The Equivalence of Vector Addition Systems to a Subclass of Post Canonical Systems. - Charles E. Hughes (Inf. Process. Lett., 1978)

ASSIST-V: An Environment Simulator for IBM 360 Systems Software Development. - Charles E. Hughes; Charles P. Pfleeger (IEEE Trans. Software Eng., 1978)

Pascal program development aids. - Charles E. Hughes; Charles P. Pfleeger (ACM Southeast Regional Conference, 1979)

Computer science curriculum for high school students. - Robert M. Aiken; Charles E. Hughes; J. Michael Moshell (SIGCSE, 1980)

Word problems for bidirectional, single-premise Post systems. - Charles E. Hughes; David W. Straight (Notre Dame J. Formal Log., 1980)

Derivatives and Quotients of Prefix-Free Context-Free Languages - Charles E. Hughes (Inf. Control., 1980)

Computer whatcha-maycallit: Insights into universal computer education. - J. Michael Moshell; Charles E. Hughes; C. R. Gregory; Robert M. Aiken (SIGCSE, 1981)

The Finite Power Property for Context-Free Languages. - Charles E. Hughes; Stanley M. Selkow (Theor. Comput. Sci., 1981)

Designing training scenarios by rehearsal. - John E. Mears; Charles E. Hughes; J. Michael Moshell (VL, 1988)

Evaluating Database Update Schemes: A Methodology and Its Applications to Distributive Systems. - Kathryn C. Kinsley; Charles E. Hughes (IEEE Trans. Software Eng., 1988)

The object-oriented design of a visual syntax-directed editor generator. - Farahangiz Arefi; Charles E. Hughes; David A. Workman (COMPSAC, 1989)

Automatically Generating Visual Syntax-Directed Editors. - Farahangiz Arefi; Charles E. Hughes; David A. Workman (Commun. ACM, 1990)

Parallel Execution of CLP-R Programs. - Jennifer Burg; Charles E. Hughes; Sheau-Dong Lang (IJCSLP Workshop on Concurrent and Parallel Implementations, 1992)

Networked Virtual Environments. - Brian S. Blau; Charles E. Hughes; J. Michael Moshell; Curtis Lisle (SI3D, 1992)

Analysis of a Virtual Memory Model For Maintaining Database Views. - Kathryn C. Kinsley; Charles E. Hughes (IEEE Trans. Software Eng., 1992)

Finding Conflict Sets and Backtrack Points in CLP(R). - Jennifer Burg; Sheau-Dong Lang; Charles E. Hughes (ICLP, 1994)

Intelligent Backtracking in CLP(R). - Jennifer Burg; Sheau-Dong Lang; Charles E. Hughes (Ann. Math. Artif. Intell., 1996)

The virtual academy: A simulated environment for constructionist learning. - J. Michael Moshell; Charles E. Hughes (Int. J. Hum. Comput. Interact., 1996)

Real-Time Fluid Simulation in a Dynamic Virtual Environment. - Jim X. Chen; Niels da Vitoria Lobo; Charles E. Hughes; J. Michael Moshell (IEEE Computer Graphics and Applications, 1997)

Shared Virtual Worlds for Education: The ExploreNet Experiment. - Charles E. Hughes; J. Michael Moshell (Multim. Syst., 1997)

Agents for the Matching of Peer Tutors with Distance Learners. - Hector Morelos-Borja; J. Michael Moshell; Alvin Y. Wang; Rebecca J. Parsons; Charles E. Hughes (WebNet, 1998)

Virtual Drama as a Learning Medium: The Caracol Time Travel Project. - J. Michael Moshell; Charles E. Hughes; Dean Reed; Diane Z. Chase; Arlen Chase (VR, 2000)

The Caracol Time Travel Project. - Charles E. Hughes; J. Michael Moshell; Dean Reed; Diane Z. Chase; Arlen Chase (Comput. Animat. Virtual Worlds, 2001)

Applying Mixed Reality to Entertainment. - Christopher B. Stapleton; Charles E. Hughes; J. Michael Moshell; Paulius Micikevicius; Marty Altman (Computer, 2002)

MIXED FANTASY: Exhibition of Entertainment Research for Mixed Reality. - Christopher B. Stapleton; Charles E. Hughes; J. Michael Moshell (ISMAR, 2003)

A New Program in Information Technology. - Charles E. Hughes; Gerald A. Marin (ITCC, 2003)

Teaching Java Concurrency to CS vs IT Students: A Matter of Emphasis. - Charles E. Hughes; Marc L. Smith (PDPTA, 2003)

A Characterization of Lazy and Eager Semantic Solutions to the Linda Predicates Ambiguity Problem. - Marc L. Smith; Charles E. Hughes (PDPTA, 2003)

Interactive Imagination: Tapping the Emotions through Interactive Story for Compelling Simulations. - Christopher B. Stapleton; Charles E. Hughes (IEEE Computer Graphics and Applications, 2003)

View-centric reasoning for Linda and Tuple Space computation. - Marc L. Smith; Rebecca J. Parsons; Charles E. Hughes (IEE Proc. Softw., 2003)

Extreme MR: Going Beyond Reality to Create Extreme Multi-Modal Mixed Reality for Entertainment, Training and Education. - Christopher B. Stapleton; Charles E. Hughes; S. Malo (ISMAR, 2004)

Deducing behaviors from primitive movement attributes. - Danzhou Liu; Charles E. Hughes (Data Mining, Intrusion Detection, Information Assurance, and Data Networks Security, 2005)

Collaborative interactive evolution. - Sean R. Szumlanski; Annie S. Wu; Charles E. Hughes (GECCO, 2005)

The Art of Nurturing Citizen Scientists through Mixed Reality. - Christopher B. Stapleton; Eileen M. Smith; Charles E. Hughes (ISMAR, 2005)

Mixed Reality in Education, Entertainment, and Training. - Charles E. Hughes; Christopher B. Stapleton; Darin E. Hughes; Eileen M. Smith (IEEE Computer Graphics and Applications, 2005)

High-Dynamic-Range Still-Image Encoding in JPEG 2000. - Ruifeng Xu; Sumanta N. Pattanaik; Charles E. Hughes (IEEE Computer Graphics and Applications, 2005)

Conflict Resolution and a Framework for Collaborative Interactive Evolution. - Sean R. Szumlanski; Annie S. Wu; Charles E. Hughes (AAAI, 2006)

Human Experience Modeler: Context-Driven Cognitive Retraining to Facilitate Transfer of Learning. - Cali M. Fidopiastis; Christopher B. Stapleton; Janet D. Whiteside; Charles E. Hughes; Stephen M. Fiore; Glenn A. Martin; Jannick P. Rolland; Eileen M. Smith (Cyberpsychology Behav. Soc. Netw., 2006)

Believing is Seeing: Cultivating Radical Media Innovations. - Christopher B. Stapleton; Charles E. Hughes (IEEE Computer Graphics and Applications, 2006)

Model-Guided Luminance Range Enhancement in Mixed Reality. - Yunjun Zhang; Charles E. Hughes (ICIAR, 2007)

Image-space particle emission. - Jaakko Konttinen; Sumanta N. Pattanaik; Charles E. Hughes (SIGGRAPH Posters, 2007)

Painting in High Dynamic Range. - Mark Colbert; Erik Reinhard; Charles E. Hughes (J. Vis. Commun. Image Represent., 2007)

How novelty search escapes the deceptive trap of learning to learn. - Sebastian Risi; Sandy D. Vanderbleek; Charles E. Hughes; Kenneth O. Stanley (GECCO, 2009)

Evaluating the Potential of Cognitive Rehabilitation with Mixed Reality. - Nicholas Beato; Daniel P. Mapes; Charles E. Hughes; Cali M. Fidopiastis; Eileen M. Smith (HCI (13), 2009)

The Bespoke 3DUI XNA Framework: a low-cost platform for prototyping 3D spatial interfaces in video games. - Paul D. Varcholik; Joseph J. LaViola Jr.; Charles E. Hughes (Sandbox@SIGGRAPH, 2009)

Interactive chroma keying for mixed reality. - Nicholas Beato; Yunjun Zhang; Mark Colbert; Kazumasa Yamazawa; Charles E. Hughes (Comput. Animat. Virtual Worlds, 2009)

Virtual Reality. - Darin E. Hughes; Eileen M. Smith; Randall Shumaker; Charles E. Hughes (The Universal Access Handbook, 2009)

Mixed Reality for PTSD/TBI Assessment. - Cali M. Fidopiastis; Charles E. Hughes; Eileen M. Smith (Annual Review of Cybertherapy and Telemedicine, 2009)

Cognitive Therapy Using Mixed Reality for Those Impaired by a Cerebrovascular Accident (CVA). - Angela M. Salva; Brenda K. Wiederhold; Antonio J. Alban; Charles E. Hughes; Eileen M. Smith; Cali M. Fidopiastis; Mark D. Wiederhold (Annual Review of Cybertherapy and Telemedicine, 2009)

The use of functional L-systems for scenario generation in serious games. - Glenn A. Martin; Charles E. Hughes; Sae Lynne Schatz; Denise M. Nicholson (PCGames@FDG, 2010)

Vibraudio pose: an investigation of non-visual feedback roles for body controlled video games. - Emiko Charbonneau; Charles E. Hughes; Joseph J. LaViola Jr. (Sandbox@SIGGRAPH, 2010)

A scenario generation framework for automating instructional support in scenario-based training. - Glenn A. Martin; Charles E. Hughes (SpringSim, 2010)

Evolving plastic neural networks with novelty search. - Sebastian Risi; Charles E. Hughes; Kenneth O. Stanley (Adapt. Behav., 2010)

Geppetto: An Environment for the Efficient Control and Transmission of Digital Puppetry. - Daniel P. Mapes; Peter Tonner; Charles E. Hughes (HCI (14), 2011)

Why Can't a Virtual Character Be More Like a Human: A Mixed-Initiative Approach to Believable Agents. - Jichen Zhu; J. Michael Moshell; Santiago Ontañón; Elena Erbiceanu; Charles E. Hughes (HCI (14), 2011)

Interconnections: Revisiting the Future. - Lori C. Walters; Darin E. Hughes; Charles E. Hughes (Games Cult., 2011)

Real-time Video Matting for Mixed Reality using Depth Generated Trimaps. - Nicholas Beato; Remo Pillat; Charles E. Hughes (GRAPP/IVAPP, 2012)

A Control Paradigm for Decoupled Operation of Mobile Robots in Remote Environments. - Remo Pillat; Arjun Nagendran; Charles E. Hughes (GRAPP/IVAPP, 2012)

Linear compression for spatially-varying BRDFs. - Steven Braeger; Charles E. Hughes (I3D, 2012)

Continuum of virtual-human space: towards improved interaction strategies for physical-virtual avatars. - Arjun Nagendran; Remo Pillat; Charles E. Hughes; Greg Welch (VRCAI, 2012)

Establishing a baseline for text entry for a multi-touch virtual keyboard. - Paul Varcholik; Joseph J. LaViola Jr.; Charles E. Hughes (Int. J. Hum. Comput. Stud., 2012)

Applications of Avatar Mediated Interaction to Teaching, Training, Job Skills and Wellness. - Charles E. Hughes; Arjun Nagendran; Lisa A. Dieker; Michael C. Hynes; Gregory F. Welch (Virtual Realities, 2013)

Technical Report: Exploring Human Surrogate Characteristics. - Arjun Nagendran; Gregory F. Welch; Charles E. Hughes; Remo Pillat (Virtual Realities, 2013)

Perceived Presence's Role on Learning Outcomes in a Mixed Reality Classroom of Simulated Students. - Aleshia T. Hayes; Stacey E. Hardin; Charles E. Hughes (HCI (19), 2013)

Mixed Reality Space Travel for Physics Learning. - Darin E. Hughes; Shabnam Sabbagh; Robb Lindgren; J. Michael Moshell; Charles E. Hughes (HCI (19), 2013)

ChronoLeap: The Great World's Fair Adventure. - Lori C. Walters; Darin E. Hughes; Manuel Gértrudix-Barrio; Charles E. Hughes (HCI (19), 2013)

Photometric display calibration for embedded MR environments. - Steven Braeger; Yiyan Xiong; Charles E. Hughes (VR, 2013)

AMITIES: avatar-mediated interactive training and individualized experience system. - Arjun Nagendran; Remo Pillat; Adam Kavanaugh; Greg Welch; Charles E. Hughes (VRST, 2013)

Ludic Learning: Exploration of TLE TeachLivE™ and Effective Teacher Training. - Aleshia T. Hayes; Carrie L. Straub; Lisa A. Dieker; Charlie E. Hughes; Michael C. Hynes (Int. J. Gaming Comput. Mediat. Simulations, 2013)

Good Enough Yet? A Preliminary Evaluation of Human-Surrogate Interaction. - Julian Abich IV; Lauren Reinerman-Jones; Gerald Matthews; Gregory F. Welch; Stephanie J. Lackey; Charles E. Hughes; Arjun Nagendran (HCI (16), 2014)

Human Surrogates: Remote Presence for Collaboration and Education in Smart Cities. - Charles E. Hughes (EMASC@MM, 2014)

A Unified Framework for Individualized Avatar-Based Interactions. - Arjun Nagendran; Remo Pillat; Adam Kavanaugh; Greg Welch; Charles E. Hughes (Presence Teleoperators Virtual Environ., 2014)

Virtual Environments as a Tool for Conceptual Learning. - Robb Lindgren; J. Michael Moshell; Charles E. Hughes (Handbook of Virtual Environments, 2nd ed., 2014)

Pilot Study for Telepresence with 3D-Model in Mixed Reality. - Sungchul Jung; Charles E. Hughes (HCI (11), 2015)

Providing Real-time Feedback for Student Teachers in a Virtual Rehearsal Environment. - Roghayeh Barmaki; Charles E. Hughes (ICMI, 2015)

A case study to track teacher gestures and performance in a virtual learning environment. - Roghayeh Barmaki; Charles E. Hughes (LAK, 2015)

Body Ownership in Virtual Reality. - Sungchul Jung; Charles E. Hughes (CTS, 2016)

Towards the Understanding of Gestures and Vocalization Coordination in Teaching Context. - Roghayeh Barmaki; Charles E. Hughes (EDM, 2016)

The Effects of Indirect Real Body Cues of Irrelevant Parts on Virtual Body Ownership and Presence. - Sungchul Jung; Charles E. Hughes (ICAT-EGVE, 2016)

EmoReact: a multimodal approach and dataset for recognizing emotional responses in children. - Behnaz Nojavanasghari; Tadas Baltrusaitis; Charles E. Hughes; Louis-Philippe Morency (ICMI, 2016)

Accelerating the distributed simulations of agent-based models using community detection. - Antoniya Petkova; Charles E. Hughes; Narsingh Deo; Martin Dimitrov (RIVF, 2016)

Psychomotor skills measurement for surgery training using game-based methods. - Tom Carbone; Rudy McDaniel; Charles E. Hughes (SeGAH, 2016)

Enhancing protective role-playing behaviors through avatar-based scenarios. - Charles E. Hughes; Thomas Hall; Kathleen M. Ingraham; Jennifer A. Epstein; Darin E. Hughes (SeGAH, 2016)

Video game experience and basic robotic skills. - Alyssa Tanaka; Roger Smith; Charles E. Hughes (SeGAH, 2016)

De-escalation training in an augmented virtuality space. - Charles E. Hughes; Kathleen M. Ingraham (VR, 2016)

The Future Belongs to the Curious: Towards Automatic Understanding and Recognition of Curiosity in Children. - Behnaz Nojavanasghari; Tadas Baltrusaitis; Charles E. Hughes; Louis-Philippe Morency (WOCCI, 2016)

MeEmo - Using an Avatar to Improve Social Skills in Children with ASD. - Sapna Patel; Darin E. Hughes; Charles E. Hughes (WOCCI, 2016)

Hand2Face: Automatic synthesis and recognition of hand over face occlusions. - Behnaz Nojavanasghari; Charles E. Hughes; Tadas Baltrusaitis; Louis-Philippe Morency (ACII, 2017)

Exceptionally Social: Design of an Avatar-Mediated Interactive System for Promoting Social Skills in Children with Autism. - Behnaz Nojavanasghari; Charles E. Hughes; Louis-Philippe Morency (CHI Extended Abstracts, 2017)

RealME: the influence of body and hand representations on body ownership and presence. - Sungchul Jung; Christian Sandor; Pamela J. Wisniewski; Charles E. Hughes (SUI, 2017)

Gesturing and Embodiment in Teaching: Investigating the Nonverbal ‎Behavior of Teachers in a Virtual Rehearsal Environment ‎. - Roghayeh Barmaki; Charles E. Hughes (AAAI, 2018)

Over My Hand: Using a Personalized Hand in VR to Improve Object Size Estimation, Body Ownership, and Presence. - Sungchul Jung; Gerd Bruder; Pamela J. Wisniewski; Christian Sandor; Charles E. Hughes (SUI, 2018)

In Limbo: The Effect of Gradual Visual Transition Between Real and Virtual on Virtual Body Ownership Illusion and Presence. - Sungchul Jung; Pamela J. Wisniewski; Charles E. Hughes (VR, 2018)

Sensors in Distributed Mixed Reality Environments. - Felix G. Hamza-Lup; Charles E. Hughes; Jannick P. Rolland (CoRR, 2018)

A Distributed Augmented Reality System for Medical Training and Simulation. - Felix G. Hamza-Lup; Jannick P. Rolland; Charles E. Hughes (CoRR, 2018)

Embodiment analytics of practicing teachers in a virtual immersive environment. - Roghayeh Barmaki; Charles E. Hughes (J. Comput. Assist. Learn., 2018)

Using Digital Puppetry to Prepare Physicians to Address Non-suicidal Self-injury Among Teens. - Kathleen M. Ingraham; Charles E. Hughes; Lindsay A. Taliaferro; Nicholas J. Westers; Lisa A. Dieker; Michael C. Hynes (HCI (7), 2019)

Facial Expression Recognition Using Disentangled Adversarial Learning. - Kamran Ali; Charles E. Hughes (CoRR, 2019)

Facial Expression Recognition Using Human to Animated-Character Expression Translation. - Kamran Ali; Ilkin Isler; Charles E. Hughes (CoRR, 2019)

All-In-One: Facial Expression Transfer, Editing and Recognition Using A Single Network. - Kamran Ali; Charles E. Hughes (CoRR, 2019)

Facial Expression Representation Learning by Synthesizing Expression Images. - Kamran Ali; Charles E. Hughes (CoRR, 2019)

Using Virtual Rehearsal in a Simulator to Impact the Performance of Science Teachers. - Lisa A. Dieker; Carrie L. Straub; Michael C. Hynes; Charles E. Hughes; Caitlyn Bukathy; Taylor Bousfield; Samantha Mrstik (Int. J. Gaming Comput. Mediat. Simulations, 2019)

Circle of Trust: A New Approach to Mobile Online Safety for Families. - Arup Kumar Ghosh; Charles E. Hughes; Pamela J. Wisniewski (CHI, 2020)

Facial Expression Recognition By Using a Disentangled Identity-Invariant Expression Representation. - Kamran Ali; Charles E. Hughes (ICPR, 2020)

Face Reenactment Based Facial Expression Recognition. - Kamran Ali; Charles E. Hughes (ISVC (1), 2020)

An Efficient Integration of Disentangled Attended Expression and Identity FeaturesFor Facial Expression Transfer andSynthesis. - Kamran Ali; Charles E. Hughes (CoRR, 2020)

Reinforced Imitative Graph Representation Learning for Mobile User Profiling: An Adversarial Training Perspective. - Dongjie Wang; Pengyang Wang; Kunpeng Liu 001; Yuanchun Zhou; Charles E. Hughes; Yanjie Fu (AAAI, 2021)

Virtual Animals as Diegetic Attention Guidance Mechanisms in 360-Degree Experiences. - Nahal Norouzi; Gerd Bruder; Austin Erickson; Kangsoo Kim; Jeremy N. Bailenson; Pamela J. Wisniewski; Charles E. Hughes; Greg Welch (IEEE Trans. Vis. Comput. Graph., 2021)

Delivering Simulation Scenarios to Law Enforcement. - Julie A. Kent; Charles E. Hughes (HCI (40), 2022)

Semi-supervised Drifted Stream Learning with Short Lookback. - Weijieying Ren; Pengyang Wang; Xiaolin Li; Charles E. Hughes; Yanjie Fu (KDD, 2022)

Identifying and Coding Behavioral Indicators of Social Presence With a Social Presence Behavioral Coding System. - Aleshia T. Hayes; Charles E. Hughes; Jeremy N. Bailenson (Frontiers Virtual Real., 2022)

RAISE: Robotics & AI to improve STEM and social skills for elementary school students. - Charles E. Hughes; Lisa A. Dieker; Eileen M. Glavey; Rebecca A. Hines; Ilene Wilkins; Kathleen M. Ingraham; Caitlyn A. Bukaty; Kamran Ali; Sachin Shah; John Murphy; Matthew S. Taylor (Frontiers Virtual Real., 2022)

Law enforcement training using simulation for locally customized encounters. - Julie A. Kent; Charles E. Hughes (Frontiers Virtual Real., 2022)

WAVE: A Web-Based Platform for Delivering Knowledge-Driven Virtual Experiences. - Sachin Shah; Kamran Ali; Lisa A. Dieker; Charles E. Hughes (IEEE Computer Graphics and Applications, 2023)

A Unified Transformer-based Network for multimodal Emotion Recognition. - Kamran Ali; Charles E. Hughes (CoRR, 2023)

In-the-Wild Affect Analysis of Children with ASD Using Heart Rate. - Kamran Ali; Sachin Shah; Charles E. Hughes (Sensors, 2023)

Reinforced Imitative Graph Learning for Mobile User Profiling. - Dongjie Wang; Pengyang Wang; Yanjie Fu; Kunpeng Liu 001; Hui Xiong 001; Charles E. Hughes (IEEE Trans. Knowl. Data Eng., 2023)

Using AI-Based Virtual Companions to Assist Adolescents with Autism in Recognizing and Addressing Cyberbullying. - Robinson Ferrer; Kamran Ali; Charles E. Hughes (Sensors, 2024)

A Unified Biosensor-Vision Multi-Modal Transformer network for emotion recognition. - Kamran Ali; Charles E. Hughes (Biomed. Signal Process. Control., 2025)

Building a Village: A Multi-stakeholder Approach to Open Innovation and Shared Governance to Promote Youth Online Safety. - Xavier V. Caddle; Sarvech Qadir; Charles E. Hughes; Elizabeth A. Sweigart; Jinkyung Katie Park; Pamela J. Wisniewski (CoRR, 2025)