Developing a typology of online Q&A models and recommending the right model for each question type. - Erik Choi; Vanessa Kitzie; Chirag Shah 001 (ASIST, 2012)

"How much change do you get from 40$?" - Analyzing and addressing failed questions on social Q&A. - Chirag Shah 001; Marie L. Radford; Lynn Silipigni Connaway; Erik Choi; Vanessa Kitzie (ASIST, 2012)

"10 Points for the best answer!" - Baiting for explicating knowledge contributions within online Q&A. - Erik Choi; Vanessa Kitzie; Chirag Shah 001 (ASIST, 2013)

Analyzing question quality through intersubjectivity: World views and objective assessments of questions on social question-answering. - Vanessa Kitzie; Erik Choi; Chirag Shah 001 (ASIST, 2013)

From bad to good: An investigation of question quality and transformation. - Vanessa Kitzie; Erik Choi; Chirag Shah 001 (ASIST, 2013)

Motivations and Expectations for Asking Questions Within Online Q&A. - Erik Choi (Bull. IEEE Tech. Comm. Digit. Libr., 2013)

Questioning the Question - Addressing the Answerability of Questions in Community Question-Answering. - Chirag Shah 001; Vanessa Kitzie; Erik Choi (HICSS, 2014)

Investigating motivations and expectations of asking a question in social Q&A. - Erik Choi; Vanessa Kitzie; Chirag Shah 001 (First Monday, 2014)

Modalities, motivations, and materials - investigating traditional and social online Q&A services. - Chirag Shah 001; Vanessa Kitzie; Erik Choi (J. Inf. Sci., 2014)

Utilizing content moderators to investigate critical factors for assessing the quality of answers on brainly, social learning Q&A platform for students: A pilot study. - Erik Choi; Michal Borkowski; Julien Zakoian; Katie Sagan; Kent Scholla; Crystal Ponti; Michal Labedz; Maciek Bielski (ASIST, 2015)

Evaluating the Quality of Educational Answers in Community Question-Answering. - Long T. Le; Chirag Shah 001; Erik Choi (JCDL, 2016)

User motivations for asking questions in online Q&A services. - Erik Choi; Chirag Shah 001 (J. Assoc. Inf. Sci. Technol., 2016)

Investigating an Intervention System to Increase User Engagements on an Educational Social Q&A. - Erik Choi; Chad Coleman; Tomasz Sienkiewicz; Karolina Wójcik (IDC, 2017)

Bad Users or Bad Content?: Breaking the Vicious Cycle by Finding Struggling Students in Community Question-Answering. - Long T. Le; Chirag Shah 001; Erik Choi (CHIIR, 2017)

Beyond Questioning and Answering: Teens' Learning Experiences and Benefits of Social Q&A Services. - Soo Young Rieh; Erik Choi; Katie Sagan; Jennifer Colby (CSCW Companion, 2017)

Asking for more than an answer: What do askers expect in online Q&A services? - Erik Choi; Chirag Shah 001 (J. Inf. Sci., 2017)

Assessing the quality of answers autonomously in community question-answering. - Long T. Le; Chirag Shah 001; Erik Choi (Int. J. Digit. Libr., 2019)