An Integrated Multimedia System with Learning Capabilities

Author(s):  
G. Ciocca ◽  
I. Gagliardi ◽  
R. Schettini ◽  
B. Zonta
2001 ◽  
Author(s):  
Gianluigi Ciocca ◽  
Isabella Gagliardi ◽  
Raimondo Schettini

2020 ◽  
pp. 1-12
Author(s):  
Zhang Caiqian ◽  
Zhang Xincheng

The existing stand-alone multimedia machines and online multimedia machines in the market have certain deficiencies, so they cannot meet the actual needs. Based on this, this research combines the actual needs to design and implement a multi-media system based on the Internet of Things and cloud service platform. Moreover, through in-depth research on the MQTT protocol, this study proposes a message encryption verification scheme for the MQTT protocol, which can solve the problem of low message security in the Internet of Things communication to a certain extent. In addition, through research on the fusion technology of the Internet of Things and artificial intelligence, this research designs scheme to provide a LightGBM intelligent prediction module interface, MQTT message middleware, device management system, intelligent prediction and push interface for the cloud platform. Finally, this research completes the design and implementation of the cloud platform and tests the function and performance of the built multimedia system database. The research results show that the multimedia database constructed in this paper has good performance.


2020 ◽  
Author(s):  
Yi Yang ◽  
Wei Zhang ◽  
Jia Qing ◽  
Zhi Li

BACKGROUND Preclinical training on manikins is a key component of dental medicine education. Preclinical practice on traditional manikins and real clinical practice shows massive differences. Specifically, preclinical training on traditional manikins is inefficient. OBJECTIVE The aim of this study is to describe a manikin with a multimedia system and evaluate its effectiveness in preclinical dentistry training. METHODS A total of 159 students participated in this study. Amongst these students, 80 used traditional manikins (Group TM) for preclinical practices, including cavity preparation and full-crown preparation, and 79 used a manikin with a multimedia system (Group MM). The cavity preparation scores and full-crown preparation grades of the two groups were compared. The students and teachers completed a final questionnaire survey to evaluate their experience of preclinical practices using the manikin with a multimedia system. RESULTS Group MM performed better than Group TM in the preclinical practices of cavity preparation and full-crown preparation. The final questionnaire results indicated that students in Group MM were satisfied with the clarity, simulation, helpfulness in mastering operation points quickly and improvement in operation proficiency provided by the manikin with a multimedia system. The teachers were satisfied with the teaching effect of the manikin with a multimedia system and had a high opinion of the students’ mastery. CONCLUSIONS The results of this study indicated that manikins with a multimedia system are a good alternative traditional manikins in preclinical dentistry training.


Author(s):  
Yoko E. Fukumura ◽  
Julie McLaughlin Gray ◽  
Gale M. Lucas ◽  
Burcin Becerik-Gerber ◽  
Shawn C. Roll

Workplace environments have a significant impact on worker performance, health, and well-being. With machine learning capabilities, artificial intelligence (AI) can be developed to automate individualized adjustments to work environments (e.g., lighting, temperature) and to facilitate healthier worker behaviors (e.g., posture). Worker perspectives on incorporating AI into office workspaces are largely unexplored. Thus, the purpose of this study was to explore office workers’ views on including AI in their office workspace. Six focus group interviews with a total of 45 participants were conducted. Interview questions were designed to generate discussion on benefits, challenges, and pragmatic considerations for incorporating AI into office settings. Sessions were audio-recorded, transcribed, and analyzed using an iterative approach. Two primary constructs emerged. First, participants shared perspectives related to preferences and concerns regarding communication and interactions with the technology. Second, numerous conversations highlighted the dualistic nature of a system that collects large amounts of data; that is, the potential benefits for behavior change to improve health and the pitfalls of trust and privacy. Across both constructs, there was an overarching discussion related to the intersections of AI with the complexity of work performance. Numerous thoughts were shared relative to future AI solutions that could enhance the office workplace. This study’s findings indicate that the acceptability of AI in the workplace is complex and dependent upon the benefits outweighing the potential detriments. Office worker needs are complex and diverse, and AI systems should aim to accommodate individual needs.


Processes ◽  
2021 ◽  
Vol 9 (6) ◽  
pp. 1070
Author(s):  
Abdul Gani Abdul Jameel

The self-learning capabilities of artificial neural networks (ANNs) from large datasets have led to their deployment in the prediction of various physical and chemical phenomena. In the present work, an ANN model was developed to predict the yield sooting index (YSI) of oxygenated fuels using the functional group approach. A total of 265 pure compounds comprising six chemical classes, namely paraffins (n and iso), olefins, naphthenes, aromatics, alcohols, and ethers, were dis-assembled into eight constituent functional groups, namely paraffinic CH3 groups, paraffinic CH2 groups, paraffinic CH groups, olefinic –CH=CH2 groups, naphthenic CH-CH2 groups, aromatic C-CH groups, alcoholic OH groups, and ether O groups. These functional groups, in addition to molecular weight and branching index, were used as inputs to develop the ANN model. A neural network with two hidden layers was used to train the model using the Levenberg–Marquardt (ML) training algorithm. The developed model was tested with 15% of the random unseen data points. A regression coefficient (R2) of 0.99 was obtained when the experimental values were compared with the predicted YSI values from the test set. An average error of 3.4% was obtained, which is less than the experimental uncertainty associated with most reported YSI measurements. The developed model can be used for YSI prediction of hydrocarbon fuels containing alcohol and ether-based oxygenates as additives with a high degree of accuracy.


2021 ◽  
pp. 147490412110212
Author(s):  
Rita Koris ◽  
Francisco Javier Mato-Díaz ◽  
Núria Hernández-Nanclares

This study explores international students’ perceptions of the transition to the online learning environment while they were studying on an Erasmus+ Study Mobility Programme at host universities in Europe during the COVID-19 pandemic in spring 2020. Applying the theoretical framework based on the affective, behavioural and cognitive aspects of adaptation in the case of international students, this study reveals what adaptive responses and decisions sojourners made, and how their study experience and learning capabilities were challenged by the restrictive measures introduced at host universities due to the state of emergency declared in the host countries. Fourteen semi-structured interviews with both incoming and outgoing international students were conducted. Results reveal that studying online with reduced social interaction was a real challenge to Erasmus students. They were lacking cultural knowledge of the destination country as well as the insights typically arising from face-to-face teaching and social interactions. However, findings also expose students’ satisfaction with their academic accomplishments. In this regard, specific proposals are made for universities that consider virtual mobility programmes for international students in the future.


2020 ◽  
Vol 30 ◽  
pp. e117
Author(s):  
Vitaly Stamov ◽  
Sergei Gavrilov ◽  
Elena Dolbneva

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