Your browser doesn't support javascript.
Show: 20 | 50 | 100
Results 1 - 20 de 146
Filter
1.
EACL 2023 - 17th Conference of the European Chapter of the Association for Computational Linguistics, Proceedings of the Conference ; : 2644-2656, 2023.
Article in English | Scopus | ID: covidwho-20243588

ABSTRACT

In automated scientific fact-checking, machine learning models are trained to verify scientific claims given evidence. A major bottleneck of this task is the availability of large-scale training datasets on different domains, due to the required domain expertise for data annotation. However, multiple-choice question-answering datasets are readily available across many different domains, thanks to the modern online education and assessment systems. As one of the first steps towards addressing the fact-checking dataset scarcity problem in scientific domains, we propose a pipeline for automatically converting multiple-choice questions into fact-checking data, which we call Multi2Claim. By applying the proposed pipeline, we generated two large-scale datasets for scientific-fact-checking: Med-Fact and Gsci-Fact for the medical and general science domains, respectively. These two datasets are among the first examples of large-scale scientific-fact-checking datasets. We developed baseline models for the verdict prediction task using each dataset. Additionally, we demonstrated that the datasets could be used to improve performance measured by weighted F1 on existing fact-checking datasets such as SciFact, HEALTHVER, COVID-Fact, and CLIMATE-FEVER. In some cases, the improvement in performance was up to a 26% increase. The generated datasets are publicly available. © 2023 Association for Computational Linguistics.

2.
IEEE Transactions on Learning Technologies ; : 1-16, 2023.
Article in English | Scopus | ID: covidwho-20237006

ABSTRACT

The global outbreak of the new coronavirus epidemic has promoted the development of intelligent education and the utilization of online learning systems. In order to provide students with intelligent services such as cognitive diagnosis and personalized exercises recommendation, a fundamental task is the concept tagging for exercises, which extracts knowledge index structures and knowledge representations for exercises. Unfortunately, to the best of our knowledge, existing tagging approaches based on exercise content either ignore multiple components of exercises, or ignore that exercises may contain multiple concepts. To this end, in this paper, we present a study of concept tagging. First, we propose an improved pre-trained BERT for concept tagging with both questions and solutions (QSCT). Specifically, we design a question-solution prediction task and apply the BERT encoder to combine questions and solutions, ultimately obtaining the final exercise representation through feature augmentation. Then, to further explore the relationship between questions and solutions, we extend the QSCT to a pseudo-siamese BERT for concept tagging with both questions and solutions (PQSCT). We optimize the feature fusion strategy, which integrates five different vector features from local and global into the final exercise representation. Finally, we conduct extensive experiments on real-world datasets, which clearly demonstrate the effectiveness of our proposed models for concept tagging. IEEE

3.
Biochem Mol Biol Educ ; 51(3): 341-349, 2023.
Article in English | MEDLINE | ID: covidwho-20237779

ABSTRACT

Online assessments are needed during the prevailing pandemic situation to continue educational activities while ensuring safety. After conducting the online practical assessment (OPrA) in Biochemistry, we analyzed the students' responses. The blueprint of the OPrA was prepared by the faculty, referring to the various levels and domains of Bloom's taxonomy. Four components were chosen for the online assessment: digital spotters, enumerating the steps of objective structured practical examination, interpretation of quantitative estimation, and case discussion. Each faculty assessed about 12-13 students in separate breakout rooms over 15-20 min on all four components. Feedback on the conduct of the examination was collected from the students and faculty anonymously and analyzed. Out of the 200 students who attended the online assessment, only one scored less than 50%, majority of them scored between 71% and 90%. Under the individual exercises, the average score of students in "Spotters" was 9.8 out of 10; in "OSPE," 8.7 out of 10; in "Quantitative experiments," 15.2 out of 20 and in "Case discussion," 22.4 out of 30. Around 20% had previous experience attending the OPrA. They differed in their opinion from the rest of the students on five aspects; time allotted for the assessment (p value = 0.02, χ2  = 5.07), students using unfair means during the online viva (p value = 0.02, χ2  = 5.57), their computing skills (p value = 0.001, χ2  = 19.82), their performance (p value = 0.001, χ2  = 8.84), and overall conduct of the examination (p value = 0.001, χ2  = 15.55). OPrA tools may be designed referring to Bloom's taxonomy, and prior exposure to the online tools may benefit the students.


Subject(s)
Educational Measurement , Students , Humans , Feedback , Faculty
4.
2023 CHI Conference on Human Factors in Computing Systems, CHI 2023 ; 2023.
Article in English | Scopus | ID: covidwho-2324376

ABSTRACT

Since the COVID-19 pandemic, online lectures are becoming more common in higher education. Specifically, asynchronous online classes have become increasingly popular because of their flexibility. Asynchronous online courses, however, may negatively impact students' academic performance and social development due to the diminished sense of social presence. To explore ways to enhance social presence among students in asynchronous online classes, this paper used a co-design methodology that involved 12 undergraduate students as primary stakeholders. As a result, we developed a design framework for designing in-class interaction to promote social presence in asynchronous online lectures. This framework consists of four high-level elements and sub-categories: interaction topic (direct or peripheral topics related to learning), interaction size (small or entire group), interaction mode (anonymity, synchronicity, instructor involvement), and interaction motivator (lightweightness and entertainment). Our design framework may serve as a guide to future technology for improving asynchronous online classes. © 2023 Owner/Author.

5.
2022 IEEE/WIC/ACM International Joint Conference on Web Intelligence and Intelligent Agent Technology, WI-IAT 2022 ; : 256-262, 2022.
Article in English | Scopus | ID: covidwho-2324074

ABSTRACT

Due to the COVID-19 pandemic, the demand for distance learning has significantly increased in higher education institutions. This type of learning is usually supported by Web-based learning systems such as Massive Open Online Courses (Coursera, edX, etc.) and Learning Management Systems (Moodle, Blackboard-Learn, etc.). However, in this remote context, students often lack feedback and support from educational staff, especially when they face difficulties or challenges. For that reason, this work presents a Prediction-Intervention approach that (a) predicts students who present difficulties during an online learning course, based on two main learning indicators, namely engagement and performance rates, and (b) offers immediate support to students, tailored to the problem they are facing. To predict students' issues, our approach considers ten machine learning algorithms of different types (standalone, ensemble, and deep learning) which are compared to determine the best performing ones. It has been experimented with a dataset collected from the Blackboard-Learn platform utilized in an engineering school called ESIEE-IT in France during 2021-2022 academic year, showing thus quite promising results. © 2022 IEEE.

6.
International Journal of Crowd Science ; 7(1):10-15, 2023.
Article in English | Scopus | ID: covidwho-2327283

ABSTRACT

This study examined how college students in a medical school in China engaged in learning in asynchronous online learning environments during the COVID-19 health crisis. A quasi-experimental design approach was employed to compare if a class of students had better learning outcomes and developed systems thinking when asynchronous discussion forums incorporated an inquiry-based pedagogical approach in one unit, whereas the other unit followed a traditional instructor-led approach. In sum, 25 junior students participated in this study. Quantitative results show that the students had statistically significant higher assessment scores and improved systems thinking when the unit incorporated the inquiry-based pedagogical approach. Qualitative findings also demonstrated how students engaged in learning and how the instructor scaffolded students' inquiries and learning. Practical implications for instructors' teaching online courses are also discussed. © The author(s) 2023.

7.
15th International Conference on Knowledge and Smart Technology, KST 2023 ; 2023.
Article in English | Scopus | ID: covidwho-2318674

ABSTRACT

The COVID-19 pandemic has resulted in a rapid growth of online learning. While majority of the current research focus on different learning management systems, massive open online courses, or even specific softwares like Zoom and Microsoft Teams, the use of artificial-intelligence (AI) based voice assistants (VAs) for the purpose of online education is very rare. In this work we propose, validate, and test a research model that explains the continuance usage of VAs by students for learning purpose during their home quarantine period. We consider novel pandemic-specific psychological factors like loneliness and self-quarantine, together with anthropomorphic factors like voice attractiveness of the VAs for proposing the research model. The factors of satisfaction and continuance usage are borrowed from Expectation Confirmation Theory. Partial Least Squares Structural Equation Modelling is used for testing the proposed model. © 2023 IEEE.

8.
55th Annual Hawaii International Conference on System Sciences, HICSS 2022 ; 2022-January:6729-6738, 2022.
Article in English | Scopus | ID: covidwho-2292368

ABSTRACT

Digital data objects on viruses have played a pivotal role in the fight against COVID-19, leading to healthcare innovation such as new diagnostics, vaccines, and societal intervention strategies. To effectively achieve this, scientists access viral data from online communities (OCs). The social-interactionist view on generativity, however, has put little emphasis on data. We argue that generativity on data depends on the number of data instances, data timeliness, and completeness of data classes. We integrated and analyzed eight OCs containing SARS-CoV-2 nucleotide sequences to explore how community structures influence generativity, revealing considerable differences between OCs. By assessing provided data classes from user perspectives, we found that generativity was limited in two important ways: When required data classes were either insufficiently collected or not made available by OC providers. Our findings highlight that OC providers control generativity of data objects and provide guidance for scientists selecting OCs for their research. © 2022 IEEE Computer Society. All rights reserved.

9.
2022 International Symposium on iNnovative Informatics of Biskra, ISNIB 2022 ; 2022.
Article in English | Scopus | ID: covidwho-2291728

ABSTRACT

E-Learning and Massive Open Online Courses are old techniques, but since the Coronavirus, they have become more popular again. Students already suffer from a lack of concentration and motivation in traditional courses;thus, this lack affects online courses. Furthermore, another important Online Learning systems problem is the difference between learners in terms of Learning Styles, abilities, social characteristics as well as preferences, background, and other psychological and mental features. Generally, these features are not taken into account by scientists. Therefore, Deep Learning techniques and Datasets have been used to improve E-Learning systems and MOOCs in several aspects such as: predicting dropout, Learning Styles and performance of online learners, and even their attention after taking an online course. In this work, we have studied and analyzed many recent works in the area of using Deep Learning techniques to improve Online Learning systems and MOOCs. This analysis shows what researchers rely on to improve E-Learning and MOOCs and demonstrates that research does not use the definition of the appropriate Learning Style frequently. However, the most used ones are dropout and performance of learners. In another hand, learners' attention is still gap. © 2022 IEEE.

10.
17th European Conference on Innovation and Entrepreneurship, ECIE 2022 ; 17:504-511, 2022.
Article in English | Scopus | ID: covidwho-2303960

ABSTRACT

The COVID-19 pandemic forced civil society and business to face a new reality where much greater reliance needed to be placed on networked devices and internet distributed communications, including the provision of services ranging from medical advice to food, entertainment and even the facility to interact with family. The ability to meet in-person with family, friends, colleagues, business associates or customers was severely restricted leaving internationalisation as a utopian dream as borders were closed, students were denied access to a physical classrooms and businesses had to rapidly "pivot” or fail. These alternatives to real life have seemed less appealing to many, with every aspect of life "going online”, whether virtualectures, exams, meetings, mediations, court appearances, job interviews, shopping for a piece of cheese or starting a new trade relationship. Much innovation over the last two years has been around deploying online business models. There has also been a wider use of artificial intelligence to support "efficient” operations partly stimulated by the falling staffing levels due to the pandemic directly through sickness or forced isolations, or indirectly by a growing sense of the futility of working for a business, known as the Great Resignation ("Over the 12 months ending in January 2022, hires totalled 76.4 million and separations totalled 70.0 million…” indicating a huge refocusing on jobs in the USA) This paper looks at the challenge for legal systems to pivot around the growing trends in deployments of online innovation. Some businesses are now widely deploying software-based analysis systems, such as Airbnb, which is using them to "verify the identity and trustworthiness of a user of an online system” and flag potential guests who may be problematic. Although Airbnb is a multibillion-dollar business, it is a good example of how through using publicly available data, user supplied information, and smart software (artificial intelligence) a business can make predictions on the behaviour of its potential customers. Other AI resources have been creating new gaming scenarios, reporting on the news, and even creating new artworks and music. These kinds of use of AI in the marketplace have challenged the legal frameworks that support individual privacy and also ideas around human creativity. © 2022, Academic Conferences and Publishing International Limited. All right reserved.

11.
3rd International Conference on Artificial Intelligence and Smart Energy, ICAIS 2023 ; : 1234-1239, 2023.
Article in English | Scopus | ID: covidwho-2303516

ABSTRACT

Learning platforms have become an integral part of the education system these days. Especially after the COVID era, education has become more allied with self-paced and remote learning and learning platforms have made it boom exponentially. Improper construction and implementation of such platforms can lead to huge risks for the users and the company. Data security is not taken much care of while building such platforms;instead, concentration is given to fancy front-end pages and attractive interfaces. This may not be good at all times. Data is one of the most powerful resources and can have a very big impact if misused. This paper proposes a networking-based approach to implementing such platform systems in a safe and organized way. Implementation using networking concepts gives a better hand in managing permissions, access rights, and security in all data-related transfers and communications. In terms of online gaming and real-time video communication, User Datagram Protocol (UDP) is often used because it is faster than Transmission Control Protocol (TCP) and is well-suited for real-time applications that cannot tolerate delays. UDP is a connectionless protocol, which means it doesn't retransmit lost data and therefore has lower overhead, making it a good choice for real-time applications like video conferencing and online gaming. Examples of such applications include Skype, Google Meet, Zoom, and Facetime. Based on these existing applications, this work introduces UDP in the field of Learning Platform Applications and builds a model on top of which real-time applications can be constructed. The proposed system makes use of UDP for all its requests, responses, and file transfers. The protocol itself is not very reliable, but the addition of provisions for acknowledgements in all requests and responses makes this system overcome transfer uncertainty. Implementation using networking concepts improves the speed, security, privacy, and customization abilities of the proposed system. © 2023 IEEE.

12.
IEEE Access ; 11:29790-29799, 2023.
Article in English | Scopus | ID: covidwho-2301644

ABSTRACT

Nowadays, online education has been a more general demand in context of COVID-19 epidemic. The intelligent educational evaluation systems assisted by intelligent techniques are in urgent demand. To deal with this issue, this paper introduces the strong information processing ability of deep learning, and proposes the design of an intelligent educational evaluation system using deep learning. Inside the algorithm part, the low-complexity offset minimal sum (OMS) is selected as the front-end processor of deep neural network, so as to reduce following computational complexity in deep neural network. And the deep neural network is adopted as the major calculation backbone. In this paper, our OMS deep neural network parameters are 23 and 57 compared with other parameters, which can save about 59.64% of the network parameters, and the training time is 11270 s and 25000 s respectively, which saves the training time 54.92%. It can be also reflected from experiments that the proposal further improves the performance of unbalanced data classification in this problem scenario. © 2013 IEEE.

13.
55th Annual Hawaii International Conference on System Sciences, HICSS 2022 ; 2022-January:64-73, 2022.
Article in English | Scopus | ID: covidwho-2301208

ABSTRACT

The number of students using online educational systems is increasing, especially after the growth of the use of this type of system due to the social isolation caused by the Covid-19 pandemic. This situation highlighted the challenge of analyzing the users' experience in this type of system, especially when evaluating more complex experiences, such as the flow experience. One of the most promising innovative alternatives is to use the behavior data logs produced by students in educational systems to analyze their experiences. In this paper, we conducted a study (N = 24) to analyze the relationships between the behavior data logs produced by students when using a gamified educational system and their flow experience during the system usage. Our results contribute to the automatic users' experience analysis in educational systems. © 2022 IEEE Computer Society. All rights reserved.

14.
Lecture Notes on Data Engineering and Communications Technologies ; 165:209-221, 2023.
Article in English | Scopus | ID: covidwho-2300583

ABSTRACT

Covid-19 pandemic created a global shift in the way how consumers purchase. Restrictions to movements of individuals and commodities created a big challenge on day today life. Due to isolation, social media usage has increased substantially, and these platforms created significant impact carrying news and sentiments instantaneously. These sentiments impacted the purchase behavior of consumers and online retailers witnessed variations in their sales. Retailers used various customer behavior prediction models such as Recommendation systems to influence consumers and increasing their sales. Due to Covid-19 pandemic, these models may not perform the same way due to changes in consumer behavior. By integrating consumer sentiments from online social media platform as another feature in the prediction machine learning models such as recommendation systems, retailers can understand consumer behavior better and create Recommendations appropriately. This provides the consumers with appropriate choice of products in essential and non-essential categories based on pandemic condition restrictions. This also helps retailers to plan their operations and inventory appropriately. © 2023, The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.

15.
55th Annual Hawaii International Conference on System Sciences, HICSS 2022 ; 2022-January:3761-3770, 2022.
Article in English | Scopus | ID: covidwho-2298011

ABSTRACT

The scope and severity of the COVID-19 pandemic has introduced new challenges for people seeking health information online. To understand how an existing online community of people living with a chronic health condition navigate meeting their existing health goals alongside the challenges and tensions resulting from COVID-19, we performed a qualitative content analysis of six weeks of discussion in the r/infertility online community. We found that community members collaborated and debated to make dynamic structural and normative changes to their community in accordance with the changing impacts of COVID-19 on their experiences. Additionally, we found that community members information-seeking goals were centered around timelines for their own treatment plans and goals, with the scope of these timelines shifting based on their current state of knowledge of COVID-19. Implications of these findings for supporting health online communities broadly are discussed. © 2022 IEEE Computer Society. All rights reserved.

16.
28th International Conference on Intelligent User Interfaces, IUI 2023 ; : 16-20, 2023.
Article in English | Scopus | ID: covidwho-2297616

ABSTRACT

In recent years, Internet of Things(IoT) has become popular, the requirements for sharing the operation/mechanisms of IoT devices, such as Arduino and M5Stack are increasing. Moreover, owing to the coronavirus pandemic, many educational institutions have adopted online lectures, such as on-demand classes and online classes using video conference systems. For IoT programming education, these methods have challenges, such as a lack of linkage with real-world devices and source codes. In this study, we propose a system called "IoTeach", which supports the learning of IoT programming by attaching a scripting language to sequential contents, such as videos and slides shared on the Web. The IoTeach can link videos and slides with real-world IoT devices and source codes. We describe the concept and implementation of the system in this study. © 2023 Owner/Author.

17.
56th Annual Hawaii International Conference on System Sciences, HICSS 2023 ; 2023-January:3507-3516, 2023.
Article in English | Scopus | ID: covidwho-2295034

ABSTRACT

During COVID-19 lockdown many social media challenges captured the attention of users all around the world, and many online communities of practice used social media platforms for their daily interactions. On Instagram these communities gather around common interests through the platform's sociotechnical affordances. We examined the role that these features play in boundary maintenance processes and boundary crossing practices, analyzing posts from four online communities of practice (CoPs), who were bounded by their hashtags and shared an art recreation challenge that was popular on Instagram at the start of COVID-19 lockdown. We found that while some practices are shared across CoPs, boundary maintenance processes sometimes are not, and the boundaries of some of these CoPs are more permeable than others. Cultural differences, language, and script were critical for boundary maintenance regardless of the platform's visual affordances that served the boundary crossing practices. © 2023 IEEE Computer Society. All rights reserved.

18.
J Med Libr Assoc ; 110(4): 494-500, 2022 Oct 01.
Article in English | MEDLINE | ID: covidwho-2295412

ABSTRACT

Background: Despite the challenges the COVID-19 pandemic placed on libraries' existing workflows and operations, many librarians developed and debuted new services that addressed novel needs that emerged during the pandemic. This report describes how two electronic resource librarians at regional hospitals within a healthcare corporation used exhibition platforms to showcase resident research in an online format as a complement to in-person resident research programming. Case Presentation: Over the course of the pandemic, two exhibition platform variants were implemented, one year apart. This case report describes how each platform was developed. The first online event was conducted using a virtual exhibit platform to minimize in-person contact. The second online event, held the following year, blended a traditional live event with virtual elements using the online exhibit platform. To ensure completion of tasks, project management techniques were adopted throughout the event planning process. Conclusions: The pandemic created opportunities for hospitals to explore transforming meetings from primarily live and onsite into hybrid and fully virtual events. While many corporate hospitals have transitioned back to primarily in-person programming, newly adopted online practices such as online judging platforms and automation of continuing medical education tasks will likely remain. As in-person restrictions within healthcare settings are lifted or eased at uneven rates, organizations may continue to explore the value of in-person meetings versus the video conference experience of the same meeting.


Subject(s)
COVID-19 , Humans , SARS-CoV-2 , Pandemics , Delivery of Health Care , Workplace
19.
2nd IEEE International Conference on Advanced Technologies in Intelligent Control, Environment, Computing and Communication Engineering, ICATIECE 2022 ; 2022.
Article in English | Scopus | ID: covidwho-2277775

ABSTRACT

Internet of Medical Things is one of the fastest growing fields in technology, and it is predicted to bring about the largest technological delivery ever. Medical systems have been pushed to improve online services across the board by the COVID-19 pandemic, as the edge-enabled Online learning system in the healthcare system offers incredible opportunities. With the introduction of cutting-edge digital health technologies, patients will be able to avoid unneeded, preventative hospitalizations. Furthermore, the utilization of adaptable and readily available media by both patients and medical professionals would allow telehealth-based medical platforms to make healthcare more efficient and economical. © 2022 IEEE.

20.
25th International Conference on Interactive Collaborative Learning, ICL 2022 ; 633 LNNS:742-751, 2023.
Article in English | Scopus | ID: covidwho-2276334

ABSTRACT

This paper investigates the automated building of verified software environments that can be used in university courses. Over the last couple of years, it has become obvious that using online environments, video meetings, virtual lectures, online teaching, and learning is not a matter of choice. The coronavirus pandemic forced all parts of the education systems, and even of life, to go online. Deepening the research and development in the software automation field can lead to using various ways to allow university students and learners to "get in touch with” the real-world problems in software development. We developed such an approach by defining the steps, developing and evaluating specific automation processes of building an environment for secure software development. We defined both the functional and nonfunctional requirements for such a system, and the next major steps in development, such as virtualization setup (kvm), virtual environment (virtual machines) definition and creation, database configuration and management of user settings, have been defined and developed. The evaluation is performed according to the specifics defined in the Web technologies course, but the results and use are not limited to that course alone. In conclusion, the results of the evaluation conducted in a laboratory setting have been presented and appropriate scenarios, applications and future work have been defined. © 2023, The Author(s), under exclusive license to Springer Nature Switzerland AG.

SELECTION OF CITATIONS
SEARCH DETAIL