| 2007 | PAKDD | Untitled record | Kwanghoon Pio Kim, Clarence A. Ellis |
| 2006 | BPM | Beyond Workflow Mining. | Clarence A. Ellis, Aubrey J. Rembert, Kwanghoon Pio Kim, Jacques Wainer |
| 2004 | CoopIS | A Distributed and Parallel Component Architecture for Stream-Oriented Applications. | Paulo Barthelmess, Clarence A. Ellis |
| 2004 | ICMI | The ThreadMill architecture for stream-oriented human communication analysis applications. | Paulo Barthelmess, Clarence A. Ellis |
| 2004 | SAC | Applying scheduling techniques to minimize the number of late jobs in workflow systems. | Gregrio Baggio, Jacques Wainer, Clarence A. Ellis |
| 2003 | Tapia | The neem dream. | Clarence A. Ellis, Paulo Barthelmess |
| 2002 | CoopIS | An Evolvable Framework for Perceptual Collaborative Applications. | Paulo Barthelmess, Clarence A. Ellis, The Neem Platform |
| 2002 | ICMI | Perceptual Collaboration in Neem. | Paulo Barthelmess, Clarence A. Ellis |
| 2002 | PDPTA | Aspect-oriented Composition in Extensible Collaborative Applications. | Paulo Barthelmess, Clarence A. Ellis |
| 2001 | ECSCW | Team automata for spatial access control. | Maurice H. ter Beek, Clarence A. Ellis, Jetty Kleijn, Grzegorz Rozenberg |
| 2001 | Group | Workflow performance and scalability analysis using the layered queuing modeling methodology. | Kwanghoon Pio Kim, Clarence A. Ellis |
| 2000 | BPM | A Workflow Change Is a Workflow. | Clarence A. Ellis, Karim Keddara |
| 2000 | CoopIS | Workflow Modeling Using Proclets. | Wil M. P. van der Aalst, Paulo Barthelmess, Clarence A. Ellis, Jacques Wainer |
| 1999 | ISADS | CORBA based Architecture for Large Scale Workflow. | Roberto Silveira Silva Filho, Jacques Wainer, Edmundo R. M. Madeira, Clarence A. Ellis |
| 1998 | CSCW | Operational Transformation in Real-Time Group Editors: Issues, Algorithms, and Achievements. | Chengzheng Sun, Clarence A. Ellis |
| 1997 | Group | Team automata for groupware systems. | Clarence A. Ellis |
| 1995 | CoopIS | Next Generation Workflow: Promises and Problems (Keynote). | Clarence A. Ellis |
| 1995 | Group | Dynamic change within workflow systems. | Clarence A. Ellis, Karim Keddara, Grzegorz Rozenberg |
| 1994 | CSCW | A Conceptual Model of Groupware. | Clarence A. Ellis, Jacques Wainer |
| 1992 | SAC | Dynamic change in office automation: modeling and analysis. | Shih-Gong Li, Clarence A. Ellis, Kar Yan Tam |
| 1991 | WI | Groupware: Overview and Perspectives. | Clarence A. Ellis |
| 1989 | SIGMOD | Concurrency Control in Groupware Systems. | Clarence A. Ellis, Simon J. Gibbs |
| 1987 | ICDE | Design and Implementation of GORDION, an Object Base Management System. | Aral Ege, Clarence A. Ellis |
| 1986 | CSCW | Project Nick: meetings augmentation and analysis. | Michael L. Begeman, Peter Cook, Clarence A. Ellis, Mike Graf, Gail L. Rein, Tom Smith |
| 1986 | CSCW | Panel on alternative views of cooperative work in the office. | Clarence A. Ellis |
| 1977 | SOSP | Consistency and Correctness of Duplicate Database Systems. | Clarence A. Ellis |
| 1975 | SIGCSE | A practicum - seminar in structured programming. | Clarence A. Ellis |
| 1973 | SOSP | On the Propability of Deadline in Computer Systems. | Clarence A. Ellis |
| 1970 | STOC | Probabilistic Tree Automata | Clarence A. Ellis |