Name: Author Spotlight: Addressing Technical and Subjective Challenges in Measuring Classroom Attention
Uploaded: 2023-12-15T14:10:00
Description: Read this Scientific Article Protocol about Author Spotlight: Addressing Technical and Subjective Challenges in Measuring Classroom Attention at JoVE.com

This work was developed with funding from Programa Prometeo, project ID CIPROM/2021/017. Prof. Rosabel Roig is the chair of the UNESCO &#34;Education, Research and Digital Inclusion&#34;.

The following protocol follows the guidelines of the University of Alicante&#39;s human research ethics committee with the approved protocol number UA-2022-11-12. Informed consent has been obtained from all participants for this experiment and for using the data here.
1. Hardware, software, and class setup
<ol>
	<li>Set a router with WiFi capabilities (the experiments were carried out using a DLink DSR 1000AC) in the desired location so that its range covers the entire room....

Enhancing Classroom Engagement: AI-Based Analysis of Student Attention Levels

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I., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Consensus+on+the+Terms+and+Procedures+for+Planning+and+Reporting+a+Usability+Evaluation+of+Health-Related+Digital+Solutions:+Delphi+Study+and+a+Resulting+Checklist.">Consensus on the Terms and Procedures for Planning and Reporting a Usability Evaluation of Health-Related Digital Solutions: Delphi Study and a Resulting Checklist.</a> J Medical Internet Res. 25, e44326 (2023).</li><li>Dalmaso, M., Castelli, L., Galfano, G. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Social+modulators+of+gaze-mediated+orienting+of+attention:+A+review.">Social modulators of gaze-mediated orienting of attention: A review.</a> Psychon Bull Rev. 27 (5), 833-855 (2020).</li><li>Klein, R. M. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Thinking+about+attention:+Successive+approximations+to+a+productive+taxonomy.">Thinking about attention: Successive approximations to a productive taxonomy.</a> Cognition. 225, 105137 (2022).</li><li>Schindler, S., Bublatzky, F. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Attention+and+emotion:+An+integrative+review+of+emotional+face+processing+as+a+function+of+attention.">Attention and emotion: An integrative review of emotional face processing as a function of attention.</a> Cortex. 130, 362-386 (2020).</li><li>Zaletelj, J., Ko&#353;ir, A. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Predicting+students'+attention+in+the+classroom+from+Kinect+facial+and+body+features.">Predicting students' attention in the classroom from Kinect facial and body features.</a> J Image Video Proc. 80, (2017).</li><li>Strauch, C., Wang, C. 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This work presents a system that measures the attention level of a student in a classroom using cameras, smartwatches, and artificial intelligence algorithms. This information is subsequently presented to the teacher for them to have an idea of the general state of the class.
One of the main critical steps of the protocol is the synchronization of the smartwatch information with the color camera image, as these have different frequencies. This was solved by deploying raspberries as servers tha...

In modern educational settings, accurately assessing and maintaining students&#39; attention is crucial for effective teaching and learning. However, traditional methods of gauging engagement, such as self-reporting or subjective teacher observations, are time-consuming and prone to biases. To address this challenge, Artificial Intelligence (AI) techniques have emerged as promising solutions for automated attention detection. One significant aspect of understanding students&#39; engagement levels is emotion recognition1. AI systems can analyze facial expressions to identify emotions, such as neutral, disgust, surprise, sadness, fear, happiness, and anger2.
Gaze direction and body posture are also crucial indicators of students&#39; attention3. By utilizing cameras and advanced machine learning algorithms, AI systems can accurately track where students are looking and analyze their body posture to detect signs of disinterest or fatigue4. Furthermore, incorporating biometric data enhances the accuracy and reliability of attention detection5. By collecting measurements, such as heart rate and blood oxygen saturation levels, through smartwatches worn by students, objective indicators of attention can be obtained, complementing other sources of information.
This paper proposes a system that evaluates an individual&#39;s level of attention using color cameras and other different sensors. It combines emotion recognition, gaze direction analysis, body posture assessment, and biometric data to provide educators with a comprehensive set of tools for optimizing the teaching-learning process and improving student engagement. By employing these tools, educators can gain a comprehensive understanding of the teaching-learning process and enhance student engagement, thereby optimizing the overall educational experience. By applying AI techniques, it is even possible to automatically evaluate this data.
The main goal of this work is to describe the system that allows us to capture all the information and, once captured, to train an AI model that allows us to obtain the attention of the whole class in real-time. Although other works have already proposed capturing attention using visual or emotional information6, this work proposes the combined use of these techniques, which provides a holistic approach to allow the use of more complex and effective AI techniques. Moreover, the datasets hitherto available are limited to either a set of videos or one of biometric data. The literature includes no datasets that provide complete data with images of the student&#39;s face or their body, biometric data, data on the teacher&#39;s position, etc. With the system presented here, it is possible to capture this type of dataset.
The system associates a level of attention with each student at each point of time. This value is a probability value of attention between 0% and 100%, which can be interpreted as low level of attention (0%-40%), medium level of attention (40%-75%), and high level of attention (75%-100%). Throughout the text, this probability of attention is referred to as the level of attention, student attention, or whether students are distracted or not, but these are all related to the same output value of our system.
Over the years, the field of automatic engagement detection has grown significantly due to its potential to revolutionize education. Researchers have proposed various approaches for this area of study.
Ma et al.7 introduced a novel method based on a Neural Turing Machine for automatic engagement recognition. They extracted certain features, such as eye gaze, facial action units, head pose, and body pose, to create a comprehensive representation of engagement recognition.
EyeTab8, another innovative system, used models to estimate where someone is looking with both their eyes. It was specially made to work smoothly on a standard tablet with no modifications. This system harnesses well-known algorithms for processing images and analyzing computer vision. Their gaze estimation pipeline includes a Haar-like feature-based eye detector, as well as a RANSAC-based limbus ellipse fitting approach.
Sanghvi et al.9 propose an approach that relies on vision-based techniques to automatically extract expressive postural features from videos recorded from a lateral view, capturing the behavior of the children. An initial evaluation is conducted, involving the training of multiple recognition models using contextualized affective postural expressions. The results obtained demonstrate that patterns of postural behavior can effectively predict the engagement of the children with the robot.
In other works, such as&#160;Gupta et al.10, a deep learning-based method is employed to detect the real-time engagement of online learners by analyzing their facial expressions and classifying their emotions. The approach utilizes facial emotion recognition to calculate an engagement index (EI) that predicts two engagement states: engaged and disengaged. Various deep learning models, including Inception-V3, VGG19, and ResNet-50, are evaluated and compared to identify the most effective predictive classification model for real-time engagement detection.
In&#160;Altuwairqi et al.11, the researchers present a novel automatic multimodal approach for assessing student engagement levels in real-time. To ensure accurate and dependable measurements, the team integrated and analyzed three distinct modalities that capture students&#39; behaviors: facial expressions for emotions, keyboard keystrokes, and mouse movements.
Guill&#233;n et al.12 propose the development of a monitoring system that uses electrocardiography (ECG) as a primary physiological signal to analyze and predict the presence or absence of cognitive attention in individuals while performing a task.
Alban et al.13 utilize a neural network (NN) to detect emotions by analyzing the heart rate (HR) and electrodermal activity (EDA) values of various participants in both time and frequency domains. They find that an increase in the root-mean-square of successive differences (RMSDD) and the standard deviation normal-to-normal (SDNN) intervals, coupled with a decrease in the average HR, indicate heightened activity in the sympathetic nervous system, which is associated with fear.
Kajiwara et al.14 propose an innovative system that employs wearable sensors and deep neural networks to forecast the level of emotion and engagement in workers. The system follows a three-step process. Initially, wearable sensors capture and collect data on behaviors and pulse waves. Subsequently, time series features are computed based on the behavioral and physiological data acquired. Finally, deep neural networks are used to input the time series features and make predictions on the individual&#39;s emotions and engagement levels.
In other research, such as&#160;Costante et al.15, an approach based on a novel transfer metric learning algorithm is proposed, which utilizes prior knowledge of a predefined set of gestures to enhance the recognition of user-defined gestures. This improvement is achieved with minimal reliance on additional training samples. Similarly, a sensor-based human activity recognition framework16 is presented to address the goal of the impersonal recognition of complex human activities. Signal data collected from wrist-worn sensors is utilized in the human activity recognition framework developed, employing four RNN-based DL models (Long-Short Term Memories, Bidirectional Long-Short Term Memories, Gated Recurrent Units, and Bidirectional Gated Recurrent Units) to investigate the activities performed by the user of the wearable device.

<table border="1" fo:keep-together.within-page="1" fo:keep-with-next.within-page="always">
	<tbody>
		<tr>
			<td>4 GPUs&#160; Nvidia A40 Ampere</td>
			<td>NVIDIA</td>
			<td>TCSA40M-PB</td>
			<td>GPU for centralized model processing server</td>
		</tr>
		<tr>
			<td>FusionServer 2288H V5</td>
			<td>X-Fusion</td>
			<td>02311XBK</td>
			<td>Platform that includes power supply and motherboard for centralized model processing server</td>
		</tr>
		<tr>
			<td>Memory Card Evo Plus 128 GB</td>
			<td>Samsung</td>
			<td>MB-MC128KA/EU</td>
			<td>Memory card for the operation of the raspberry pi 4b 2gb.&#160; One for each raspberry.&#160;</td>
		</tr>
		<tr>
			<td>NEMIX RAM - 512 GB Kit DDR4-3200 PC4-25600 8Rx4 EC</td>
			<td>NEMIX</td>
			<td>M393AAG40M32-CAE</td>
			<td>RAM for centralized model processing server</td>
		</tr>
		<tr>
			<td>Processor Intel Xeon Gold 6330</td>
			<td>Intel</td>
			<td>CD8068904572101</td>
			<td>Processor for centralized model processing server</td>
		</tr>
		<tr>
			<td>Raspberry PI 4B 2GB</td>
			<td>Raspberry</td>
			<td>1822095</td>
			<td>Local server that receives requests from the clocks and sends them to the general server. One every two students.</td>
		</tr>
		<tr>
			<td>Samsung Galaxy Watch 5 (40mm)</td>
			<td>Samsung</td>
			<td>SM-R900NZAAPHE</td>
			<td>Clock that monitors each student&#39;s activity. For each student.&#160;</td>
		</tr>
		<tr>
			<td>Samsung MZQL23T8HCLS-00B7C PM9A3 3.84Tb Nvme U.2 PCI-Express-4 x4 2.5inch Ssd</td>
			<td>Samsung</td>
			<td>MZQL23T8HCLS-00B7C</td>
			<td>Internal storage for centralized model processing server</td>
		</tr>
		<tr>
			<td>WebCam HD Pro C920 Webcam FullHD</td>
			<td>Logitech</td>
			<td>960-001055</td>
			<td>Webcam HD. One for each student plus two for student poses.</td>
		</tr>
	</tbody>
</table>

artificial intelligence-based system for detecting attention levels in students

The attention level of students in a classroom can be improved through the use of Artificial Intelligence (AI) techniques. By automatically identifying the attention level, teachers can employ strategies to regain students' focus. This can be achieved through various sources of information.
One source is to analyze the emotions reflected on students' faces. AI can detect emotions, such as neutral, disgust, surprise, sadness, fear, happiness, and anger. Additionally, the direction of the students' gaze can also potentially indicate their level of attention. Another source is to observe the students' body posture. By using cameras and deep learning techniques, posture can be analyzed to determine the level of attention. For example, students who are slouching or resting their heads on their desks may have a lower level of attention. Smartwatches distributed to the students can provide biometric and other data, including heart rate and inertial measurements, which can also be used as indicators of attention. By combining these sources of information, an AI system can be trained to identify the level of attention in the classroom. However, integrating the different types of data poses a challenge that requires creating a labeled dataset. Expert input and existing studies are consulted for accurate labeling. In this paper, we propose the integration of such measurements and the creation of a dataset and a potential attention classifier. To provide feedback to the teacher, we explore various methods, such as smartwatches or direct computers. Once the teacher becomes aware of attention issues, they can adjust their teaching approach to re-engage and motivate the students. In summary, AI techniques can automatically identify the students' attention level by analyzing their emotions, gaze direction, body posture, and biometric data. This information can assist teachers in optimizing the teaching-learning process.

Author Spotlight: Addressing Technical and Subjective Challenges in Measuring Classroom Attention

Artificial Intelligence-Based System for Detecting Attention Levels in Students

Our research focuses on exploring the feasibility of using artificial intelligence to measure and detect the student's level of attention in a classroom setting. We are investigating whether custom-developed algorithms and methodologies can effectively assess student engagement during classes. The most recent approaches are based on artificial intelligence.Specifically, the learning algorithms are state of art. This kind of algorithm uses vast amounts of data to train their inner models, and then they can be used to classify images, estimate the pose of a person, or perform a range of other interesting tasks. We have two main critical challenges in our study.First, there are technical matters that must be solved. For instance, how to set up the devices, how to estimate the motion from the picture, the pose, and the rest of other parameters we consider in our approach. And then there is a subjective branch as it is unclear whether all individuals express the level of attention the same way.The strongest point of our system is that we use a multimodal approach. We analyze different inputs, facial emotion, body pose, head pose, accelerator data, and heart rate to automatically classify the level of attention. In addition, our methods heavily relies on artificial intelligence, which has reportedly been used with high success in other related research areas.

The target group of this study is undergraduate and master&#39;s students, and so the main age group is between 18 and 25 years old. This population was selected because they can handle electronic devices with fewer distractions than younger students. In total, the group included 25 people. This age group can provide the most reliable results to test the proposal.
The results of the attention level shown to the teacher have 2 parts. Part A of the result shows individual information about the c...

Read this Scientific Article Protocol about Author Spotlight: Addressing Technical and Subjective Challenges in Measuring Classroom Attention at JoVE.com

This paper proposes an artificial intelligence-based system to automatically detect whether students are paying attention to the class or are distracted. This system is designed to help teachers maintain students' attention, optimize their lessons, and dynamically introduce modifications in order for them to be more engaging.

The attention level of students in a classroom can be improved through the use of Artificial Intelligence (AI) techniques. By automatically identifying ...

artificial-intelligence-based-system-for-detecting-attention-levels