Intelligent tutoring systems (ITS's) have a rich history of helping students in certain scientific domains, like geometry, chemistry, and programming. These domains are ideal for ITS's, because they can be easily represented and because... more
The feelings of difficulty and familiarity (FOD and FOF) are two types of metacognitive experiences. Both may influence student engagement and the application of metacognitive strategies, but these relationships are not well understood,... more
Abstract. This paper provides a synthesis of our research towards the development of an affect-sensitive Intelligent Tutoring System called AutoTutor. The affect-sensitive AutoTutor detects the emotions (boredom, flow/engagement,... more
novel decision-theoretic architecture for intelligent tutoring systems, DT Tutor (DT), was fleshed out into a complete ITS and evaluated. DT uses a dynamic decision network to probabilistically look ahead to anticipate how its tutorial... more
Empirical evidence suggests that the emotional meaning of facial behavior in isolation is often ambiguous in real-world conditions. While humans complement interpretations of others' faces with additional reasoning about context,... more
A key challenge in the accurate prediction of viewers' emotional responses to video stimuli in real-world applications is accounting for person-and situation-specific variation. An important contextual influence shaping individuals'... more
This paper investigates the interactions between learners’ cognitive strategies and affective states; both important components of self-regulated learning (SRL) processes that influence student learning. We study cognitive-affective... more
This study presents Quantitative Field Observations (QFOs) of educationally relevant affect and behavior among students at three schools using Reasoning Mind, a game-based software system designed to teach elementary-level mathematics.... more
The worldwide increase in demand for qualified workers in science, technology, engineering, and mathematics (STEM) fields has resulted in a greater focus on preparing students to enroll in postsecondary STEM programs. The processes that... more
that the reader is familiar with some basics of affect science, affective computing, and ITSs, so this section is relatively brief. Although some of the claims made below are generally accepted, others are still controversial and are... more
In recent years, the usefulness of affect detection for educational software has become clear. Accurate detection of student affect can support a wide range of interventions with the potential to improve student affect, increase... more
We report work on adding affect-detection to an existing e-drama programme, a text-based software system for (human) dramatic improvisation in simple virtual scenarios, for use primarily in learning contexts. The system allows a human... more
Artificial Intelligence in Education (AIEd) is an established interdisciplinary field of research with focus on deploying artificial intelligence (AI) algorithms to transform education. There has been a growing interest in harnessing the... more
Intelligent tutoring systems (ITS's) have a rich history of helping students in certain scientific domains, like geometry, chemistry, and programming. These domains are ideal for ITS's, because they can be easily represented and because... more
This paper describes the design of AutoTutor, a fully automated computer tutor that simulates dialogue moves of normal human tutors and that will eventually incorporate sophisticated tutoring strategies. Autolhtot follows a curriculum... more
Equipping an Intelligent Tutoring System (ITS) with the ability to interpret affective signals from students could potentially improve the learning experience of students by enabling the tutor to monitor the students' progress and provide... more
We present results of a randomized controlled study that compared different types of affective messages delivered by pedagogical agents. We used animated characters that were empathic and emphasized the malleability of intelligence and... more
Equipping an Intelligent Tutoring System (ITS) with the ability to interpret affective signals from students could potentially improve the learning experience of students by enabling the tutor to monitor the students' progress and provide... more
Uncertainty is ubiquitous in natural human communication. Human listeners assess the speaker's degree of uncertainty at any time in communication and use this information to shape dialogue. In contrast, currently available computer... more
Curiosity plays a crucial role in learning and education of children. Given its complex nature, it is extremely challenging to automatically understand and recognize it. In this paper, we discuss the contexts under which curiosity can be... more
Intelligent tutoring systems (ITSs) are computer programs that provide instruction adapted to the needs of individual students. Dialog systems are computer programs that communicate with human users by using natural language. This paper... more
Students can experience a variety of emotions while completing assessments. Some emotions can get in the way of students performing their best (e.g., anxiety, frustration), whereas other emotions can facilitate student performance (e.g.,... more
This paper describes an attempt to reveal the user's intention from dialogue acts, thereby improving the effectiveness of natural interfaces to pedagogical agents. It focuses on cases where the intention is unclear from the dialogue... more
We tested key predictions of a theoretical model positing that confusion, which accompanies a state of cognitive disequilibrium that is triggered by contradictions, conflicts, anomalies, erroneous information, and other discrepant events,... more
Folk wisdom holds that being confused is detrimental to learning. However, research on emotions and learning suggest a somewhat more complex relationship between confusion and learning outcomes. In fact, it has been proposed that impasses... more
helped frame my perspective on computer science. I have benefited from many lunch conversations with fellow students as well as conversations in the labs that I have had a desk. I would especially like to thank Megan Olsen and Yariv Levy,... more
In the early-elementary years, emerging readers experience many emotions due to the high value that is placed on the development of reading skills. If emotions are not regulated using effective learning strategies, they can negatively... more
This paper investigates the reliability of detecting a learner's affective states in an attempt to augment an Intelligent Tutoring System (AutoTutor) with the ability to incorporate such states into its pedagogical strategies to improve... more
Abstract. This paper provides a synthesis of our research towards the development of an affect-sensitive Intelligent Tutoring System called AutoTutor. The affect-sensitive AutoTutor detects the emotions (boredom, flow/engagement,... more
This project augments an existing intelligent tutoring system (AutoTutor) that helps learners construct explanations by interacting with them in natural language and helping them use simulation environments. The research aims to develop... more
The past decade has witnessed an unprecedented growth in user interface and humancomputer interaction (HCI) technologies and methods. The synergy of technological and methodological progress on the one hand, and changing user expectations... more
Cognitive disequilibrium and its affiliated affective state of confusion have been found to be beneficial to learning due to the effortful cognitive activities that accompany their experience. Although confusion naturally occurs during... more
From International Organizations "Artificial intelligence will be disruptive, but few people understand that education is going to be in the first frontline. This brilliantly reflective and forward-looking book helps the education... more
Research into "gaming the system" behavior in intelligent tutoring systems (ITS) has been around for almost two decades, and detection has been developed for many ITSs. Machine learning models can detect this behavior in both real-time... more
Research Methods Tutor is a new intelligent tutoring system created by porting the existing implementation of the AutoTutor system to a new domain, Research Methods in Behavioural Sciences, which allows more interactive dialogues. The... more
This paper presents an empirical evidence of user bias within a laboratory-oriented evaluation of a Spoken Dialog System. Specifically, we addressed user bias in their satisfaction judgements. We question the reliability of this data for... more
In many cases, academic programs or courses conclude with a thesis or research proposal text, elaborated by students. The review of such texts is a heavy load, especially at initial stages of drafting. This paper proposes a model that... more
Supporting Children’s Metacognition with a Facial Emotion Recognition based Intelligent Tutor System
The present study aims to investigate the relationship between emotions experienced during learning and metacognition in typically developing (TD) children and those with autism spectrum disorder (ASD). This will assist us in using... more
In this study, we incorporate automatically obtained system/user performance features into machine learning experiments to detect student emotion in computer tutoring dialogs. Our results show a relative improvement of 2.7% on... more
We present in this paper preliminary results with dialogue act classification in human-to-human tutorial dialogues. Dialogue acts are ways to characterize the intentions and actions of the speakers in dialogues based on the... more
In this article, we present a new architecture of the Intelligent Tutoring System (ITS) and we suggest an original method, which allows recognizing the expression of the learner's face during exercise. It helps evaluate his affective... more
Tutorial dialogue has been the subject of increasing attention in recent years, and it has become evident that empirical studies of human-human tutorial dialogue can contribute important insights to the design of computational models of... more
This paper continues prior work conducted on the analysis of moments of student learning in Physics Playground, a learning environment for qualitative physics. The study analyzed data from 60 tenth-grade students who used Physics... more
AI-powered technologies are increasingly being developed for educational purposes to contribute to students' academic performance and overall better learning outcomes. This exploratory review uses the PRISMA approach to describe how... more
E-learning is a form of providing education by using electronic devices. Lack of proper mechanisms for encouraging and assisting students are key issues faced by many students in an e-learning environment. The 'Vidu Mithuru' is a... more
Equipping an Intelligent Tutoring System (ITS) with the ability to interpret affective signals from students could potentially improve the learning experience of students by enabling the tutor to monitor the students' progress and provide... more
The past decade has witnessed an unprecedented growth in user interface and humancomputer interaction (HCI) technologies and methods. The synergy of technological and methodological progress on the one hand, and changing user expectations... more