Sketch Based Video Annotation and Organization System in Distributed Teaching Environment

2012 ◽  
pp. 321-335
Author(s):  
Jia Chen ◽  
Cui-xia Ma ◽  
Hong-an Wang ◽  
Hai-yan Yang ◽  
Dong-xing Teng
Keyword(s):  
Design Process ◽  
Distributed System ◽  
User Study ◽  
Organization Structure ◽  
Video Annotation ◽  
Instructional Video ◽  
Distributed Environment ◽  
Video Clips ◽  
E Learning ◽  
Video Material

As the use of instructional video is becoming a key component of e-learning, there is an increasing need for a distributed system which supports collaborative video annotation and organization. In this paper, the authors construct a distributed environment on the top of NaradaBrokering to support collaborative operations on video material when users are located in different places. The concept of video annotation is enriched, making it a powerful media to improve the instructional video organizing and viewing. With panorama based and interpolation based methods, all related users can annotate or organize videos simultaneously. With these annotations, a video organization structure is consequently built through linking them with other video clips or annotations. Finally, an informal user study was conducted and result shows that this system improves the efficiency of video organizing and viewing and enhances user’s participating into the design process with good user experience.

Sketch Based Video Annotation and Organization System in Distributed Teaching Environment

2010 ◽  
Vol 1 (4) ◽  
pp. 27-41
Author(s):  
Jia Chen ◽  
Cui-xia Ma ◽  
Hong-an Wang ◽  
Hai-yan Yang ◽  
Dong-xing Teng
Keyword(s):  
Design Process ◽  
Distributed System ◽  
User Study ◽  
Organization Structure ◽  
Video Annotation ◽  
Instructional Video ◽  
Distributed Environment ◽  
Video Clips ◽  
E Learning ◽  
Video Material

As the use of instructional video is becoming a key component of e-learning, there is an increasing need for a distributed system which supports collaborative video annotation and organization. In this paper, the authors construct a distributed environment on the top of NaradaBrokering to support collaborative operations on video material when users are located in different places. The concept of video annotation is enriched, making it a powerful media to improve the instructional video organizing and viewing. With panorama based and interpolation based methods, all related users can annotate or organize videos simultaneously. With these annotations, a video organization structure is consequently built through linking them with other video clips or annotations. Finally, an informal user study was conducted and result shows that this system improves the efficiency of video organizing and viewing and enhances user’s participating into the design process with good user experience.

scholarly journals Explorando la comunicación intercultural en línea: la anotación en vídeo en la formación de docentes

2020 ◽  
Vol 23 (1) ◽  
Author(s):  
Laurent Tessier ◽  
Virginie Tremion
Keyword(s):  
Blended Learning ◽  
Web 2.0 ◽  
Intercultural Communication ◽  
Design Process ◽  
Collaborative Work ◽  
Learning Systems ◽  
Video Annotation ◽  
Design Based Research ◽  
E Learning

En la post-Web 2.0, el papel del vídeo se ha vuelto cada vez más importante, tanto en el e-learning como en los sistemas de aprendizaje semipresencial. Este artículo pretende identificar cómo la anotación en vídeo puede ayudar a explorar la comunicación en la formación de profesores. Habida cuenta de la necesidad de tener en cuenta la gran diversidad de alumnos, el trabajo en colaboración y los intercambios en línea pueden contribuir a aumentar la comprensión de la comunicación intercultural. En primer lugar, comenzamos con una presentación de anotaciones en vídeo colaborativo para observar el lugar y el papel de la interacción en este sistema. A continuación, tratamos de descubrir elementos del proceso de diseño en un proyecto de investigación basado en el diseño sobre el celuloide, un dispositivo de anotación de vídeo a través de la descripción de dos experimentos: sus contextos, los vídeos utilizados, las modalidades de consulta y los procesos de anotación desarrollados para aumentar la interacción. In post-Web 2.0, the role of video has become increasingly important, both in e-learning and in blended learning systems. This article aims to identify how video annotation can help explore communication in teacher training. With the necessity to take into account the great diversity of pupils, collaborative work and online exchanges may help increase understanding of intercultural communication. Firstly, we begin with a presentation of collaborative video annotation to observe the place and the role of interaction in this system. Then, we seek to uncover elements of the design process in a design-based research project on Celluloid, a video annotation device through the description of two experiments: their contexts, the videos used, the consultation modalities and the annotation processes developed to increase interaction.

Developing Clinical Decision Support System for Sleep Staging Tasks by Formulating Explanations from Artificial Intelligence: User-Centered Design and Evaluation. (Preprint)

2021 ◽  
Author(s):  
Jeonghwan Hwang ◽  
Taeheon Lee ◽  
Honggu Lee ◽  
Seonjeong Byun
Keyword(s):  
Artificial Intelligence ◽  
Decision Support ◽  
Design Process ◽  
Clinical Decision Support ◽  
User Study ◽  
Clinical Decision ◽  
Sleep Staging ◽  
User Centered Design ◽  
Iterative Design ◽  
User Centered

BACKGROUND Despite the unprecedented performances of deep learning algorithms in clinical domains, full reviews of algorithmic predictions by human experts remain mandatory. Under these circumstances, artificial intelligence (AI) models are primarily designed as clinical decision support systems (CDSSs). However, from the perspective of clinical practitioners, the lack of clinical interpretability and user-centered interfaces block the adoption of these AI systems in practice. OBJECTIVE The aim of this study was to develop an AI-based CDSS for assisting polysomnographic technicians in reviewing AI-predicted sleep staging results. This study proposed and evaluated a CDSS that provides clinically sound explanations for AI predictions in a user-centered fashion. METHODS User needs for the system were identified during interviews with polysomnographic technicians. User observation sessions were conducted to understand the workflow of the practitioners during sleep scoring. Iterative design process was performed to ensure easy integration of the tool into clinical workflows. Then, we evaluated the system with polysomnographic technicians. We measured the improvements in sleep staging accuracies after adopting our tool and assessed qualitatively how the participants perceived and used the tool. RESULTS The user study revealed that technicians desire explanations relevant to key electroencephalogram (EEG) patterns for sleep staging when assessing the correctness of the AI predictions. Here, technicians could evaluate whether AI models properly locate and use those patterns during prediction. Based on this, information in AI models that is closely related to sleep EEG patterns was formulated and visualized during the iterative design process. Furthermore, we developed a different visualization strategy for each pattern based on the way the technicians interpreted the EEG recordings with these patterns during their workflows. Generally, the tool evaluation results from the nine polysomnographic technicians were positive. Quantitatively, technicians achieved better classification performances after reviewing the AI-generated predictions with the proposed system; classification accuracies measured with Macro-F1 scores improved from 60.20 to 62.71. Qualitatively, participants reported that the provided information from the tool effectively supported them, and they were able to develop notable adoption strategies for the tool. CONCLUSIONS Our findings indicate that formulating clinical explanations for automated predictions using the information in the AI with a user-centered design process is an effective strategy for developing a CDSS for sleep staging.

scholarly journals Hogyan alakul (hat) a tanulói aktivitás egy MOOC során?

2017 ◽  
Vol 16 (4) ◽  
pp. 40
Author(s):  
Zsolt Námesztovszki ◽  
Dorottya Balázs P. ◽  
Cintia Kovács ◽  
Lenke Major ◽  
Dijana Karuović
Keyword(s):  
Empirical Data ◽  
Activity Patterns ◽  
Online Course ◽  
Learning Tools ◽  
Working Process ◽  
Massive Open Online ◽  
Student Activities ◽  
Massive Open Online Course ◽  
E Learning ◽  
Video Material

Manapság egyre több szó esik az időtől és helytől független tanulásról, amely elektronikus eszközök segítségével valósul meg. Ezen eszközök szervezett és összefogott megjelenítését biztosítják a MOOC (Massive Open Online Course) típusú kurzusok. Ezek a kurzusok egyre nagyobb népszerűségnek örvendenek az oktatók és a tanulók körében is, és egyre több ilyen struktúrájú képzés jelenik meg. Az utóbbi években magyar nyelvű képzések is egyre gyakrabban érhetők el, azonban ezek működése (az empirikus adatok tükrében) már kevésbé ismert. Ezt a kört bővíti ez a tanulmány, amely a tanulói aktivitás intenzitását vizsgálja a videómegtekintések, a fórumaktivitások és a tesztek kitöltésének ideje alapján három, saját készítésű MOOC felületén. --- Tracing learners' activity patterns in 3 MOOC trainings Nowadays, more and more researchers and teachers are talking about e-learning, which makes education independent of time and place. The MOOC (Massive Open Online Course) provides the organized and coordinated look of these e-learning tools. These courses are becoming more and more popular among instructors and students alike, and there are a number of these sorts of structured courses. In recent years there have also been a great number of courses available in Hungarian too, but their working process is less well-known (in light of empirical data). This study examines the intensity of the student activities during the video-material, the forum activities and the time of completion of the tests, on the basis of three self-made MOOCs.

Assembly Simulation in the Design Process in a Distributed Environment

2004 ◽  
pp. 291-302
Author(s):  
Charles McLean ◽  
Deogratias Kibira ◽  
William Reiter ◽  
Paul Maropoulos
Keyword(s):  
Design Process ◽  
Distributed Environment ◽  
Assembly Simulation

Cultural Adaptation of E-Learning Courseware

2012 ◽  
pp. 192-209
Author(s):  
Randall Stieghorst ◽  
Andrea L. Edmundson
Keyword(s):  
Instructional Design ◽  
Design Process ◽  
Ethical Dilemmas ◽  
Code Of Conduct ◽  
Corporate Environment ◽  
Web Based ◽  
Global Organizations ◽  
Learning Modules ◽  
Instructional Design Process ◽  
E Learning

Web-based and self-paced learning modules have become a common-and sometimes primary-tool used by the Ethics & Compliance departments of global organizations to educate employees worldwide. These e-learning modules provide guidance around such topics as the company’s Code of Conduct, specific policies or laws, globally applicable corporate standards, and how best to manage ethical dilemmas in a corporate environment. In this case, the authors describe the instructional design process that were used on various ethics and compliance courses to achieve a more global, regional, or country-specific applicability, including an overview of changes made to content and methodology that was originally perceived as “very American.”

scholarly journals A rapid auto-indexing technology for designing readable e-learning content

2012 ◽  
Vol 13 (5) ◽  
pp. 20 ◽  
Author(s):  
Pao-Ta Yu ◽  
Yuan-Hsun Liao ◽  
Ming-Hsiang Su ◽  
Po-Jen Cheng ◽  
Chun-Hsuan Pai
Keyword(s):  
Formative Assessment ◽  
Online Course ◽  
Instructional Video ◽  
Retrieval Performance ◽  
Instructional Videos ◽  
Learning Content ◽  
Indexing Method ◽  
E Learning ◽  
Specific Material ◽  
Fast Access

A rapid scene indexing method is proposed to improve retrieval performance for students accessing instructional videos. This indexing method is applied to anchor suitable indices to the instructional video so that students can obtain several small lesson units to gain learning mastery. The method also regulates online course progress. These anchored points not only provide students with fast access to specific material but also can link to certain quizzes or problems to show the interactive e-learning content that course developers deposited in the learning management system, which enhances the learning process. This allows students to click on the anchored point to repeat their lesson, or work through the quizzes or problems until they reach formative assessment. Hence, their learning can be guided by the formative assessment results.

An Assistant Interface to Design and Produce a Pop-Up Card

2010 ◽  
Vol 1 (2) ◽  
pp. 40-50
Author(s):  
Sosuke Okamura ◽  
Takeo Igarashi
Keyword(s):  
Real Time ◽  
Design Process ◽  
Collision Detection ◽  
User Study ◽  
Three Dimensional ◽  
Dimensional Structure ◽  
Design Activity ◽  
Three Dimensional Structure ◽  
Design And Production

This article describes an assistant interface to design and produce pop-up cards. A pop-up card is a piece of folded paper from which a three-dimensional structure pops up when opened. The authors propose an interface to assist the user in the design and production of a pop-up card. During the design process, the system examines whether the parts protrude from the card or whether the parts collide with one another when the card is closed. The user can concentrate on the design activity because the error occurrence and the error resolution are continuously fed to the user in real time. The authors demonstrate the features of their system by creating two pop-up card examples and perform an informal preliminary user study, showing that automatic protrusion and collision detection are effective in the design process.

Effects of September 11Th Terrorism Stress on Estimated Duration

2007 ◽  
Vol 104 (3) ◽  
pp. 799-802 ◽  
Author(s):  
Matthew J. Anderson ◽  
Kathleen Reis-Costa ◽  
James R. Misanin
Keyword(s):  
News Coverage ◽  
The Other ◽  
Terrorist Attacks ◽  
September 11Th ◽  
Wizard Of Oz ◽  
Video Clips ◽  
Psychology Courses ◽  
Video Material

Previous research has suggested that the duration of stressful video material is estimated to be longer than one containing less stressful material. The current study sought to examine what effects viewing news coverage of the September 11th 2001 terrorist attacks might have on estimated duration of exposure. 16 participants were recruited from Saint Joseph's College of Maine psychology courses and viewed two 3-min. video clips. One clip contained coverage of the 9–11 terrorist attacks; the other, a nonstressful control, was taken from a familiar segment of The Wizard of Oz. Participants estimated the length of the clip and rated stress experienced while viewing the clip. Analysis showed the September 11th footage was rated as more stressful and was estimated as longer than the control clip.

Optimizing Video Clips in Educational Materials

2012 ◽  
Vol 1 (2) ◽  
pp. 68-79
Author(s):  
Aleš Oujezdský
Keyword(s):  
Video Quality ◽  
Video Clip ◽  
Web Pages ◽  
Nearest Neighbour ◽  
Bilinear Interpolation ◽  
Physical Processes ◽  
Educational Materials ◽  
Interpolation Filter ◽  
Video Clips ◽  
Video Material

Abstract The use of videos from digital camcorders has become a standard in education in recent years. The curriculum is easily accessible and appeals to a wider audience. The lessons use videos of various physical processes and chemical experiments. However there can be problems with this format. The video quality is often degraded in the final stage when the video is being prepared for placement in education. These include teaching materials in the form of web pages, elearning courses or flash multimedia objects. The final product of editing video from a digital camcorder is a DVD video. However, if we want to transfer this to the Web or other educational material, it is necessary to remove non-square pixels, interlaced video and choose the appropriate compression. For these operations, there are many interpolation algorithms (nearest neighbour, bilinear interpolation, bicubic interpolation), filter deinterlacing (wave, bob, blend), and compression tools. By selecting appropriate settings for these parameters, the video material can be optimized while maintaining the highest possible image quality. The final step before publishing the video is its conversion into one of the used codecs. Codec’s settings will largely impact the final quality and size of the video-clip.

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