Clifford A. Shaffer

ORCID

Publication Activity (10 Years)

Years Active: 1983-2024
Publications (10 Years): 46

Top Venues

Publications

Clifford A. Shaffer, Peter Brusilovsky, Ken Koedinger, Thomas W. Price, Tiffany Barnes, Behrooz Mostafavi
Ninth SPLICE Workshop on Technology and Data Infrastructure for CS Education Research. SIGCSE (2) (2024)
Mostafa Mohammed, Clifford A. Shaffer
Teaching Formal Languages through Programmed Instruction. SIGCSE (1) (2024)
Samnyeong Heo, Mohammed F. Farghally, Mostafa Mohammed, Clifford A. Shaffer
Analyzing Student Session Data in an eTextbook. iTextbooks@AIED (2023)
Mostafa Mohammed, Piexuan Ge, Samnyeong Heo, Clifford A. Shaffer
Support for Programmed Instruction in an eTextbook. SIGCSE (2021)
Mostafa Mohammed, Clifford A. Shaffer, Susan H. Rodger
Teaching Formal Languages with Visualizations and Auto-Graded Exercises. SIGCSE (2021)
Ayaan M. Kazerouni, James C. Davis, Arinjoy Basak, Clifford A. Shaffer, Francisco Servant, Stephen H. Edwards
Fast and accurate incremental feedback for students' software tests using selective mutation analysis. J. Syst. Softw. 175 (2021)
Mostafa Mohammed, Clifford A. Shaffer
Clickstream Data from a Formal Languages eTextbook (Abstract). EDM (Workshops) (2021)
Mohammed F. Farghally, Mostafa Mohammed, Hamdy F. F. Mahmoud, Margaret Ellis, Derek Haqq, Molly Domino, Brett Jones, Clifford A. Shaffer
The Online Transition of Two CS Courses in Response to COVID-19. SIGCSE (2021)
Alexander Hicks, Clifford A. Shaffer
Containerizing an eTextbook Infrastructure (Abstract). EDM (Workshops) (2021)
Mostafa Mohammed, Clifford A. Shaffer
Increasing Student Interaction with an eTextbook using Programmed Instruction (short paper). iTextbooks@AIED (2021)
Clifford A. Shaffer, Ayaan M. Kazerouni
The Impact of Programming Project Milestones on Procrastination, Project Outcomes, and Course Outcomes: A Quasi-Experimental Study in a Third-Year Data Structures Course. SIGCSE (2021)
Rifat Sabbir Mansur, Ayaan M. Kazerouni, Stephen H. Edwards, Clifford A. Shaffer
Exploring the Bug Investigation Techniques of Intermediate Student Programmers. Koli Calling (2020)
Sally Hamouda, Stephen H. Edwards, Hicham G. Elmongui, Jeremy V. Ernst, Clifford A. Shaffer
BTRecurTutor: a tutorial for practicing recursion in binary trees. Comput. Sci. Educ. 30 (2) (2020)
Austin Cory Bart, Javier Tibau, Dennis G. Kafura, Clifford A. Shaffer, Eli Tilevich
Design and Evaluation of a Block-based Environment with a Data Science Context. IEEE Trans. Emerg. Top. Comput. 8 (1) (2020)
Hamza Manzoor, Amit Naik, Clifford A. Shaffer, Chris North, Stephen H. Edwards
Auto-Grading Jupyter Notebooks. SIGCSE (2020)
Ehsan Elgendi, Clifford A. Shaffer
Dynamic Concept Maps for eTextbook Glossaries: Design and Evaluation. Frontiers Comput. Sci. 2 (2020)
Sally Hamouda, Stephen H. Edwards, Hicham G. Elmongui, Jeremy V. Ernst, Clifford A. Shaffer
RecurTutor: An Interactive Tutorial for Learning Recursion. ACM Trans. Comput. Educ. 19 (1) (2019)
Margaret Ellis, Clifford A. Shaffer, Stephen H. Edwards
Approaches for Coordinating eTextbooks, Online Programming Practice, Automated Grading, and More into One Course. SIGCSE (2019)
Mostafa Mohammed, Clifford A. Shaffer, Susan H. Rodger
Using Interactive Visualization and Programmed Instruction to Teach Formal Languages. SIGCSE (2019)
Ayaan M. Kazerouni, Clifford A. Shaffer, Stephen H. Edwards, Francisco Servant
Assessing Incremental Testing Practices and Their Impact on Project Outcomes. SIGCSE (2019)
Minghan Chen, Brandon D. Amos, Layne T. Watson, John J. Tyson, Young Cao, Clifford A. Shaffer, Michael W. Trosset, Cihan Oguz, Gisella Kakoti
Quasi-Newton Stochastic Optimization Algorithm for Parameter Estimation of a Stochastic Model of the Budding Yeast Cell Cycle. IEEE ACM Trans. Comput. Biol. Bioinform. 16 (1) (2019)
Ayaan M. Kazerouni, Riffat Sabbir Mansur, Stephen H. Edwards, Clifford A. Shaffer
Student Debugging Practices and Their Relationships with Project Outcomes. SIGCSE (2019)
Mostafa Mohammed, Susan H. Rodger, Clifford A. Shaffer
Using Programmed Instruction to Help Students Engage with eTextbook Content. iTextbooks@AIED (2019)
Hamza Manzoor, Kamil Akhuseyinoglu, Jackson Wonderly, Peter Brusilovsky, Clifford A. Shaffer
Crossing the Borders: Re-Use of Smart Learning Objects in Advanced Content Access Systems. Future Internet 11 (7) (2019)
Austin Cory Bart, Clifford A. Shaffer
What Have We Talked About? SIGCSE (2019)
Mostafa Mohammed, Sushma Mandava, Jieun Chon, Margaret Ellis, Clifford A. Shaffer
An Interactive Tutorial for Learning to Manipulate References: (Abstract Only). SIGCSE (2018)
Austin Cory Bart, Dennis G. Kafura, Clifford A. Shaffer, Eli Tilevich
Reconciling the Promise and Pragmatics of Enhancing Computing Pedagogy with Data Science. SIGCSE (2018)
Kyu Han Koh, Eric Fouh, Mohammed F. Farghally, Hossameldin Shahin, Clifford A. Shaffer
Experience: Learner Analytics Data Quality for an eTextbook System. ACM J. Data Inf. Qual. 9 (2) (2018)
Thomas C. Jones Jr, Stefan Hoops, Layne T. Watson, Alida Palmisano, John J. Tyson, Clifford A. Shaffer
JigCell Model Connector: building large molecular network models from components. Simul. 94 (11) (2018)
Clifford A. Shaffer, Peter Brusilovsky, Kenneth R. Koedinger, Stephen H. Edwards
CS Education Infrastructure for All: Interoperability for Tools and Data Analytics (Abstract Only). SIGCSE (2018)
Sally Hamouda, Stephen H. Edwards, Hicham G. Elmongui, Jeremy V. Ernst, Clifford A. Shaffer
A basic recursion concept inventory. Comput. Sci. Educ. 27 (2) (2017)
Mohammed F. Farghally, Kyu Han Koh, Jeremy V. Ernst, Clifford A. Shaffer
Towards a Concept Inventory for Algorithm Analysis Topics. SIGCSE (2017)
Austin Cory Bart, Ryan Whitcomb, Dennis G. Kafura, Clifford A. Shaffer, Eli Tilevich
Computing with CORGIS: Diverse, Real-world Datasets for Introductory Computing. SIGCSE (2017)
Ayaan M. Kazerouni, Stephen H. Edwards, T. Simin Hall, Clifford A. Shaffer
DevEventTracker: Tracking Development Events to Assess Incremental Development and Procrastination. ITiCSE (2017)
Austin Cory Bart, Javier Tibau, Eli Tilevich, Clifford A. Shaffer, Dennis G. Kafura
BlockPy: An Open Access Data-Science Environment for Introductory Programmers. Computer 50 (5) (2017)
Mohammed F. Farghally, Kyu Han Koh, Hossameldin Shahin, Clifford A. Shaffer
Evaluating the Effectiveness of Algorithm Analysis Visualizations. SIGCSE (2017)
Austin Cory Bart, Ryan Whitcomb, Dennis G. Kafura, Clifford A. Shaffer, Eli Tilevich
Computing with CORGIS: Diverse, Real-world Datasets for Introductory Computing. Inroads 8 (2) (2017)
Ayaan M. Kazerouni, Stephen H. Edwards, Clifford A. Shaffer
Quantifying Incremental Development Practices and Their Relationship to Procrastination. ICER (2017)
Austin Cory Bart, Clifford A. Shaffer
Instructional Design is to Teaching as Software Engineering is to Programming. SIGCSE (2016)
Clifford A. Shaffer
OpenDSA: An Interactive eTextbook for Computer Science Courses. SIGCSE (2016)
Mohammed F. Farghally, Eric Fouh, Sally Hamouda, Kyu Han Koh, Clifford A. Shaffer
Visualizing Algorithm Analysis Topics (Abstract Only). SIGCSE (2016)
Sally Hamouda, Clifford A. Shaffer
Crib sheets and exam performance in a data structures course. Comput. Sci. Educ. 26 (1) (2016)
Austin Cory Bart, Javier Tibau, Eli Tilevich, Clifford A. Shaffer, Dennis G. Kafura
Implementing an Open-Access, Data Science Programming Environment for Learners. COMPSAC (2016)
Clifford A. Shaffer, Thomas L. Naps, Susan H. Rodger
Using OpenDSA eTextbooks in Your Class (Abstract Only). SIGCSE (2016)
Eric Fouh, Mohammed F. Farghally, Sally Hamouda, Kyu Han Koh, Clifford A. Shaffer
Investigating Difficult Topics in a Data Structures Course Using Item Response Theory and Logged Data Analysis. EDM (2016)
Ville Karavirta, Clifford A. Shaffer
Creating Engaging Online Learning Material with the JSAV JavaScript Algorithm Visualization Library. IEEE Trans. Learn. Technol. 9 (2) (2016)
Lillian (Boots) Cassel, Cynthia Bailey Lee, Clifford A. Shaffer, Darina Dicheva
Open Educational Resources: What Next? (Abstract Only). SIGCSE (2015)
Stephen H. Edwards, Joshua Martin, Clifford A. Shaffer
Examining Classroom Interventions to Reduce Procrastination. ITiCSE (2015)
Joshua Martin, Stephen H. Edwards, Clifford A. Shaffer
The Effects of Procrastination Interventions on Programming Project Success. ICER (2015)
Alida Palmisano, Stefan Hoops, Layne T. Watson, Thomas C. Jones Jr, John J. Tyson, Clifford A. Shaffer
JigCell Run Manager (JC-RM): a tool for managing large sets of biochemical model parametrizations. BMC Syst. Biol. 9 (2015)
Eli Tilevich, Clifford A. Shaffer, Austin Cory Bart
Creating Stimulating, Relevant, and Manageable Introductory Computer Science Projects that Utilize Real-Time, Large, Web-Based Datasets (Abstract Only). SIGCSE (2015)
Michael S. Kirkpatrick, Janice E. Cuny, Mark Guzdial, Amanda M. Holland-Minkley, Clifford A. Shaffer
Best Practices for IRB Approval: Four Perspectives. SIGCSE (2015)
Orit Hazzan, Clifford A. Shaffer
Big Data in Computer Science Education Research. SIGCSE (2015)
Tae-Hyuk Ahn, Adrian Sandu, Layne T. Watson, Clifford A. Shaffer, Yang Cao, William T. Baumann
A Framework to Analyze the Performance of Load Balancing Schemes for Ensembles of Stochastic Simulations. Int. J. Parallel Program. 43 (4) (2015)
Clifford A. Shaffer
Grand Challenges in Digital Education. Frontiers ICT 1 (2014)
Eric Fouh, Daniel A. Breakiron, Sally Hamouda, Mohammed F. Farghally, Clifford A. Shaffer
Exploring students learning behavior with an interactive etextbook in computer science courses. Comput. Hum. Behav. 41 (2014)
Eli Tilevich, Clifford A. Shaffer, Austin Cory Bart
Creating stimulating, relevant, and manageable introductory computer science projects that utilize real-time web-based data (abstract only). SIGCSE (2014)
Monika Akbar, Clifford A. Shaffer, Weiguo Fan, Edward A. Fox
Recommendation based on Deduced Social Networks in an educational digital library. JCDL (2014)
Eric Fouh, Ville Karavirta, Daniel A. Breakiron, Sally Hamouda, T. Simin Hall, Thomas L. Naps, Clifford A. Shaffer
Design and architecture of an interactive eTextbook - The OpenDSA system. Sci. Comput. Program. 88 (2014)
Alida Palmisano, Stefan Hoops, Layne T. Watson, Thomas C. Jones Jr, John J. Tyson, Clifford A. Shaffer
Multistate Model Builder (MSMB): a flexible editor for compact biochemical models. BMC Syst. Biol. 8 (2014)
Austin Cory Bart, Eli Tilevich, T. Simin Hall, Tony Allevato, Clifford A. Shaffer
Transforming introductory computer science projects via real-time web data. SIGCSE (2014)
Matthew L. Cooper, Clifford A. Shaffer, Stephen H. Edwards, Sean P. Ponce
Open source software and the algorithm visualization community. Sci. Comput. Program. 88 (2014)
Daniel A. Breakiron, Eric Fouh, Sally Hamouda, Clifford A. Shaffer
Analysis of interaction logs for online tutorials (abstract only). SIGCSE (2014)
Edward F. Gehringer, Beth Lang Golub, Randi Cohen, David M. Arnow, Clifford A. Shaffer
Panel: textbook pricing, present and future. SIGCSE (2013)
Ville Karavirta, Clifford A. Shaffer
JSAV: the JavaScript algorithm visualization library. ITiCSE (2013)
Alex Verstak, Naren Ramakrishnan, Layne T. Watson, Jian He, Clifford A. Shaffer, Ananth Grama
Using hierarchical data mining to characterize performance of wireless system configurations. Adv. Eng. Softw. 65 (2013)
Ari Korhonen, Thomas L. Naps, Charles Boisvert, Pilu Crescenzi, Ville Karavirta, Linda Mannila, Bradley Miller, Briana B. Morrison, Susan H. Rodger, Rocky Ross, Clifford A. Shaffer
Requirements and design strategies for open source interactive computer science eBooks. ITiCSE-WGR (2013)
Eric Fouh, Daniel A. Breakiron, Mai Elshehaly, T. Simin Hall, Ville Karavirta, Clifford A. Shaffer
OpenDSA: using an active eTextbook to teach data structures and algorithms (abstract only). SIGCSE (2013)
Steven C. Shaffer, Clifford A. Shaffer
Automated generation and grading of programming assignments (abstract only). SIGCSE (2013)
Monika Akbar, Clifford A. Shaffer
User type clustering to refine search and browse for educational resources (abstract only). SIGCSE (2012)
Clifford A. Shaffer
Active eTextbooks for CS: what should they be? (abstract only). SIGCSE (2012)
Eric Fouh, Maoyuan Sun, Clifford A. Shaffer
OpenDSA: a creative commons active-ebook (abstract only). SIGCSE (2012)
Monika Akbar, Clifford A. Shaffer, Edward A. Fox
Deduced social networks for an educational digital library. JCDL (2012)
Clifford A. Shaffer, Monika Akbar, Alexander Joel D. Alon, Michael Stewart, Stephen H. Edwards
Getting algorithm visualizations into the classroom. SIGCSE (2011)
Monika Akbar, Weiguo Fan, Clifford A. Shaffer, Yinlin Chen, Lillian N. Cassel, Lois M. L. Delcambre, Daniel D. Garcia, Gregory W. Hislop, Frank M. Shipman III, Richard Furuta, B. Stephen Carpenter II, Hao-wei Hsieh, Bob Siegfried, Edward A. Fox
Digital Library 2.0 for Educational Resources. TPDL (2011)
Monika Akbar, Weiguo Fan, Lillian N. Cassel, Lois M. L. Delcambre, Clifford A. Shaffer, Edward A. Fox, Yinlin Chen
How educators find educational resources online. ITiCSE (2011)
Clifford A. Shaffer, Stephen H. Edwards
Scheduling and student performance. ITiCSE (2011)
Clifford A. Shaffer, Ville Karavirta, Ari Korhonen, Thomas L. Naps
OpenDSA: beginning a community active-eBook project. Koli Calling (2011)
Zhen Liu, Umme Juka Mobassera, Clifford A. Shaffer, Layne T. Watson, Yang Cao
Multistate modeling and simulation for regulatory networks. WSC (2010)
Ranjit Randhawa, Clifford A. Shaffer, John J. Tyson
Model Composition for Macromolecular Regulatory Networks. IEEE ACM Trans. Comput. Biol. Bioinform. 7 (2) (2010)
Clifford A. Shaffer, Matthew L. Cooper, Alexander Joel D. Alon, Monika Akbar, Michael Stewart, Sean P. Ponce, Stephen H. Edwards
Algorithm Visualization: The State of the Field. ACM Trans. Comput. Educ. 10 (3) (2010)
Edward A. Fox, Yinlin Chen, Monika Akbar, Clifford A. Shaffer, Stephen H. Edwards, Peter Brusilovsky, Daniel D. Garcia, Lois M. L. Delcambre, Felicia Decker, David W. Archer, Richard Furuta, Frank M. Shipman III, Stephen Carpenter, Lillian N. Cassel
Ensemble PDP-8: eight principles for distributed portals. JCDL (2010)
Clifford A. Shaffer, Thomas L. Naps, Susan H. Rodger, Stephen H. Edwards
Building an online educational community for algorithm visualization. SIGCSE (2010)
Tae-Hyuk Ahn, Pengyuan Wang, Layne T. Watson, Yang Cao, Clifford A. Shaffer, William T. Baumann
Stochastic cell cycle modeling for budding yeast. SpringSim (2009)
Ranjit Randhawa, Clifford A. Shaffer, John J. Tyson
Model aggregation: a building-block approach to creating large macromolecular regulatory networks. Bioinform. 25 (24) (2009)
Pengyuan Wang, Ranjit Randhawa, Clifford A. Shaffer, Yang Cao, William T. Baumann
Converting macromolecular regulatory models from deterministic to stochastic formulation. SpringSim (2008)
Thomas D. Panning, Layne T. Watson, Nicholas A. Allen, Katherine C. Chen, Clifford A. Shaffer, John J. Tyson
Deterministic parallel global parameter estimation for a model of the budding yeast cell cycle. J. Glob. Optim. 40 (4) (2008)
Thomas D. Panning, Layne T. Watson, Clifford A. Shaffer, John J. Tyson
A Mathematical Programming Formulation for the Budding Yeast Cell Cycle. Simul. 83 (7) (2007)
Clifford A. Shaffer, Matthew Cooper, Stephen H. Edwards
Algorithm visualization: a report on the state of the field. SIGCSE (2007)
Dhananjay Mishra, Clifford A. Shaffer, Naren Ramakrishnan, Layne T. Watson, Kyung Kyoon Bae, Jian He, Alex Verstak, William H. Tranter
W: a problem-solving environment for wireless system design. Softw. Pract. Exp. 37 (14) (2007)
Ranjit Randhawa, Clifford A. Shaffer, John J. Tyson
Fusing and composing macromolecular regulatory network models. SpringSim (2) (2007)
Herbert M. Sauro, David Harel, Marta Z. Kwiatkowska, Clifford A. Shaffer, Adelinde M. Uhrmacher, Michael Hucka, Pedro Mendes, Lena Strömbäck, John J. Tyson
Challenges for modeling and simulation methods in systems biology. WSC (2006)
Marc Vass, Clifford A. Shaffer, Naren Ramakrishnan, Layne T. Watson, John J. Tyson
The JigCell Model Builder: A Spreadsheet Interface for Creating Biochemical Reaction Network Models. IEEE ACM Trans. Comput. Biol. Bioinform. 3 (2) (2006)
Clifford A. Shaffer, Ranjit Randhawa, John J. Tyson
The role of composition and aggregation in modeling macromolecular regulatory networks. WSC (2006)
Clifford A. Shaffer
Experiences teaching a graduate research methods course. ACM SIGCSE Bull. 38 (2) (2006)
Nicholas A. Allen, Clifford A. Shaffer, Layne T. Watson
Building modeling tools that support verification, validation, and testing for the domain expert. WSC (2005)
Jian He, Masha Sosonkina, Clifford A. Shaffer, John J. Tyson, Layne T. Watson, Jason W. Zwolak
A Hierarchical Parallel Scheme for Global Parameter Estimation in Systems Biology. IPDPS (2004)
Liya Thomas, Lamine Mili, Clifford A. Shaffer, Ed Thomas
Defect detection on hardwood logs using high resolution three dimensional laser scan data. ICIP (2004)
Roger R. Skidmore, Alex Verstak, Naren Ramakrishnan, Theodore S. Rappaport, Layne T. Watson, Jian He, Srinidhi Varadarajan, Clifford A. Shaffer, Jeremy K.-P. Chen, Kyung Kyoon Bae, Jing Jiang, William H. Tranter
W and SitePlanner® projects. ACM SIGMOBILE Mob. Comput. Commun. Rev. 8 (2) (2004)
Marc Vass, Nicholas A. Allen, Clifford A. Shaffer, Naren Ramakrishnan, Layne T. Watson, John J. Tyson
The JigCell Model Builder and Run Manager. Bioinform. 20 (18) (2004)

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Publication Activity (10 Years)

Top Topics

Top Venues

Clifford A. Shaffer