Internet Multimedia Traffic Classification from QoS Perspective Using Semi-Supervised Dictionary Learning Models

To address the issue of finegrained classification of Internet multimedia traffic from a Quality of Service(QoS) perspective with a suitable granularity, this paper defines a new set of QoS classes and presents a modified K-Singular Value Decomposition(K-SVD) method for multimedia identification. After analyzing several instances of typical Internet multimedia traffic captured in a campus network, this paper defines a new set of QoS classes according to the difference in downstream/upstream rates and proposes a modified K-SVD method that can automatically search for underlying structural patterns in the QoS characteristic space. We define bagQoS-words as the set of specific QoS local patterns, which can be expressed by core QoS characteristics. After the dictionary is constructed with an excess quantity of bag-QoSwords, Locality Constrained Feature Coding(LCFC) features of QoS classes are extracted. By associating a set of characteristics with a percentage of error, an objective function is formulated. In accordance with the modified K-SVD, Internet multimedia traffic can be classified into a corresponding QoS class with a linear Support Vector Machines(SVM) clas-sifier. Our experimental results demonstrate the feasibility of the proposed classification method.

A Multimedia Based Virtual Learning System: A Panacea for Nigerian Tertiary Institutions

Multimedia based virtual learning system (MMVLS) is a web-based platform for teaching and learning with a virtual teacher within a virtual classroom. This research was motivated by the problems confronting the traditional institutions of higher learning in Nigeria which include inadequate funding, lack of infrastructures, inadequate teaching and learning facilities, limited slots for admission known as carrying capacity, a limited number of lecturers/instructors in the tertiary institutions in Nigeria. The objective of this research is to develop a multimedia based virtual learning system for Nigerian tertiary institutions to be used in academic processes for teaching and learning. The methodology used is Object Oriented Design Methodology (OODM) with the following web development tools PHP, JavaScript, Bootstrap 3, HTML5, CSS4, Apache, and MYSQL as database. The expected result is a multimedia based virtual learning system for tertiary institutions in Nigeria which is cost effective, innovative, vibrant, individualized, learner-centric, available anytime, any place even with mobile devices. It was concluded that multimedia based virtual learning system is a veritable tool for Nigerian tertiary institutions, which when fully implemented by Nigerian tertiary institutions would help to increase the number of candidates that are given admission into our tertiary institutions and drastically reduce school dropouts as a result of candidates not gaining admission due to insufficient tertiary institutions/carrying capacity.

Application of Multimedia and Internet Technology in Learning Mould Design

With the use of multimedia which combines the use o f text, sound, images, motion video and animation, it is more efficient for studen ts to learn mould design interactively. A program is created using several multi media software to simulate the mechanism of moulding processes in order to let s tudents understand the concept of mould design. In addition, students can even access the program through the Internet. Therefore, the software is defined as Multimedia and Internet Technology (MIT) program. The MIT program consists of four sections: (i) simulation of mould mechanisms, ( ii) cooling system, (iii) material information and (iv) games for tutorials. Sec tion One covers the basic operations of different types of moulds such as two-p late mould, three-plate mould, split mould, side-core mould and mould with und ercuts. Section Two introduces different types of cooling systems such as bubble r, baffle, cooling circuits, etc. Section Three provides some useful material in formation for mould design. Section Four contains games of matching mould compon ents, mould design problem finding and multiple choice questions to test student s how much they understand mould design concept. Multimedia is highly effective particularly in teaching and learning. It changes the nature of learning itself. It makes reading dynamic by giving words an impo rtant new dimension. It allows students to see, hear and do simultaneously, thus significantly reducing average learning time. Furthermore, through cooperative learning on Internet, students can access the program, share data or search info rmation anytime anywhere. Therefore, Multimedia and Internet Technology is one o f the vital aspects to speed up the realization of information age in society.

Using Multimedia-Assisted Mode in the Course of English Teaching and Learning

With the development of the society & the economy,the pace of reformation & opening-up,and the modernization in China,English language,as a discipline,is being paid more and more attention to in the school.Good and high-standard English proficiency is required at present.With the influence of the traditional English teaching and learning mode,many students feel frustrated in the process of learning English.Therefore,the traditional English teaching and learning mode is greatly challenged.Based on the continuous development of the modern technology,the multimedia teaching and learning mode is widely applied.Multimedia,applied in the English teaching and learning process,create more authentic language environments,which enable the learners to communicate in English in real-life situations.Because both the authentic environment and communicative purposes are encouraged in modern EFL(English as a Foreign Language) teaching and learning classes,the combination of multimedia and basic teaching and learning skills will be a necessity.It is proved that the combination of the two is an effective way in the modern English language classes.

基于交互式多媒体技术的E-Learning系统研究

针对在线学习的多媒体技术,本文以在线教学为基础,以39个在校大学生为实验主体,研究了基于交互式多媒体技术的E-Learning系统。将实验主体随机分为使用LBA在线听课和在传统课堂听课2个对照组,并提供相同的授课时间和学习资料,通过衡量2组学习者考试成绩的等级和学习者的满意度来调查学习结果,实验结果表明,在线组的学习成绩高于课堂组的成绩,即使用LBA系统学习的学生比传统课堂下学习的学生能取得更好的成绩,而且在2种教学环境中学习的学生,其满意度相当。该系统可以帮助学习者更好地理解学习内容,取得比传统教学更好的成绩,为建立高效的基于多媒体技术的E-Learning教育环境开辟了一条重要路径。

E-Learning模式与建构主义学习环境

本文对E-Learning模式与建构主义学习环境做了些探讨,认为对信息爆炸社会极具适应力的E-Learning模式有助于改变我们的传统教学思想与模式,创造网上建构主义学习环境,从而使我们的教学工作跟上社会发展的需求。

Development and Evaluation of a Distance Learning System Based on CSCW

This paper described a distance learning system, which allows Internet users to conduct a lesson in real time from any kinds attached computers. Participants can jointly view and edit relevant multimedia information distributed through Internet. Teachers and students can also simultaneously communicate by voice and text to discuss the problems. Teacher can broadcast streaming PowerPoint presentation in real time to network users. In addition to sliders, presenters can broadcast video and audio simultaneously to deliver a live multimedia show online, and store their presentations for on demand playback. Teachers distributed in different places can also use cooperative editing tool to edit and encode existing digital content. We discussed some important design principles of the system. Then, the system configuration and the results of evaluation are also presented. The system has proved to be applicable to the distance learning based on CSCW (Computer Support Cooperative Work) in Internet.

Tracking Students’ Mental Engagement Using EEG Signals during an Interaction with a Virtual Learning Environment

Monitoring students’ level of engagement during learning activities is an important challenge in the development of tutoring interventions. In this paper, we explore the feasibility of using electroencephalographic signals (EEG) as a tool to monitor the mental engagement index of novice medicine students during a reasoning process. More precisely, the objectives were first, to track students’ mental engagement evolution in order to investigate whether there were particular sections within the learning environment that aroused the highest engagement level among the students, and, if so, did these sections have an impact on learners’ performance. Experimental analyses showed the same trends in the different resolution phases as well as across the different regions of the environments. However, we noticed a higher engagement index during the treatment identification phase since it aroused more mental effort. Moreover statistically significant effects were found between mental engagement and students’ performance.

Foreign Language Web-Based Learning by Means of Audiovisual Interactive Activities

Online learning has been on an upward trend for many years and is becoming more and more prevalent every day, consistently presenting the less privileged parts of our society with an equal opportunity at education. Unfortunately, though, it seldom takes advantage of the new technologies and capabilities offered by the modern World Wide Web. In this article, we present an interactive online platform that provides users with learning activities for students of English as a foreign language. The platform focuses on using audiovisual multimedia content and a user experience (UX) centered approach to provide learners with an enhanced learning experience that aims at improving their knowledge level while at the same time increasing their engagement and motivation to participate in learning. To achieve this, the platform uses advanced techniques, such as interactive vocabulary and pronunciation assistance, mini-games, embedded media, voice recording, and more. In addition, the platform provides educators with analytics about user engagement and performance. In this study, more than 100 young students participated in a preliminary use of the aforementioned platform and provided feedback concerning their experience. Both the platform’s metrics and the user-provided feedback indicated increased engagement and a preference of the participants for interactive audiovisual multimedia-based learning activities.

Emerging Factors Affecting Blended Learning in Virtual Learning Environment Framework （VLEF）

The classical definition of learning is： change and modification of behavior as a result of experience, training, and practice. In modem technological world; this definition has been changed and modified to include the changes and modification in behavior as a result of experience, training, and practice by using modem toolkits and metacognition for self-regulated, lifelong, open, flexible, and continuous learning in Virtual Learning Environment Framework （VLEF）. The classical factors of learning included： motivation, attitude, interest, attention, readiness, participation, and reinforcement. But, due to the modem toolkits, gadgets, and ICT technologies, there are new varieties in modes of presentations and instructions. The emerging learning factors to be integrated and blended include： multimedia, hypermedia, and multimodality. The researcher has intended to identify the gap in the existing literature for the inclusion of new emerging factors such as multimedia, hypermedia, and multimodal presentations. The purpose of the study was to identify the gap in the factors of learning for learning blend in this era of science and technology, especially, in the ICT-integrated form of blended learning. The methodology of the study was analysis and synthesis of literature in the form of reviewing literature for developing a model of blended leaning. The study is significant because it has filled the gap in factors of learning for making it blended in VLEF. The factors were analyzed and synthesized in the form of a model. The findings were summarized for drawing conclusion, and at the end there were made some suggestions and recommendations for blended learning environments.

Preschoolers＇ Learning Disabilities Assessment： New Perspectives in Computerized Clinical Tools

This study looks into new perspectives in preschoolers＇ assessment of being at risk for learning disabilities. Precisely, two innovative assessment approaches are examined in order to reveal new research perspectives. The first tool, a traditional approach, is the ＂Early Dyslexia Identification Test＂ and the second tool, a computerized approach, is an lnternet based Speech Pathology Diagnostic Expert System named ＂APLo＂. Both evaluate the sectors of phonological awareness, memory, psychomotor development, pre-writing and pre-reading skills in Greek. The findings o f the current study formulate three directions： （1） the complementary of speech language and learning disorders as a systemic approach, （2） the diagnosis of suspicious factors and compatibilities of learning disabilities even at the preschool age, and （3） the application of alternative methods of assessment aiming for a multidimentional approach with the combined prospect and potential of web tools in the early diagnosis and intervention in learning disabilities.

Effective Learner-Lecturer Interaction Working With a Virtual Learning Environment

Using the Internet to learn a language creates wide opportunities to enhance learning （Association of teachers of English in Catalonia （APAC）, 2010）. The Internet activities promote learners＇ self-monitoring ability, encourage the use of multimedia and network technology, and develop students＇ cooperation and participation. During the latest years, there have been many changes in education as these new technologies, including VLEs （Virtual Learning Environments）, which have become an important part in the teaching/learning process. According to Tech Terms Computer Dictionary （2012）, VLE is a virtual classroom where teachers and students communicate. VLEs have evolved as at an early stage, they were only ways of transmitting information： Teachers uploaded the multimedia resources and students read this information. At a higher stage, VLEs have become interactive. This means that students become active. We have designed a virtual environment where students, weekly, must contribute their opinions and comments in response to a required activity uploaded by the teacher. In this paper, we describe this weekly task and analyze students＇ opinion about this planned activity. The students become an active subject in this field. In this paper, we show how VLEs are no longer a means of transmitting information but a means of interaction as well as a way of motivating our students to be involved in their learning process

Application of Blended Learning Model to Computer Fundamentals Courses in an Online Environment

In the online environment,schools should keep up with the pace of development and strengthen the application of hybrid teaching mode,so as to strengthen the cultivation of students’comprehensive computer application ability and computer subject literacy,and improve students’learning efficiency.The author explores the actual situation of teaching basic computer courses at this stage and the requirements of applying hybrid teaching mode to carry out computer basic course teaching under the network environment,and puts forward an effective strategy for the application of hybrid teaching mode in computer basic course under the network environment,hoping to contribute to the improvement of the teaching quality and quality of computer basic course.

Developing Learner＇s Integrated Skills in College English Multimedia Classroom

Based on critical thinking of the relevant literature, the study has been carried out to investigate to what extent Whole Language Approach contributes to better results and motivates students to acquire the English language faster and more naturally in the multimedia language lab. A tentative model of whole language teaching comes into view, and an eighteen-month experimental project is designed and implemented in Hebei University, China. Research evaluation in both the qualitative and quantitative approaches is conducted and analyzed to ensure validity and reliability of the research.

Focus on the Language Learner and Multimedia Assisted Language Teaching

当外语教师在试图寻找一种合适的外语教学方法的时候,他们会经常失望的发现现存的教学方法没有一种单独使用效果好并且能够满足所有学习者的要求,放之天下而皆准。因此,第二语言教学将目光从研究教学法中转移到研究学习者的身上来,关注学生的智力、学能、认知风格、学习策略等方面,以便最大限度地帮助学生。笔者从语言学、心理学、二语习得理论及人本主义教学理论等方面探讨了以学习者为中心这一教学原则的理论基础及其集中体现了这一教学思想的多媒体辅助教学。

Digital Generative Multimedia Tool Theory (DGMTT): A Theoretical Postulation

The development of digital technology has brought about a substantial evolution in the multimedia field.The use of generative technologies to produce digital multimedia material is one of the newer developments in this field.The“Digital Generative Multimedia Tool Theory”(DGMTT)is therefore presented in this theoretical postulation by Timothy Ekeledirichukwu Onyejelem and Eric Msughter Aondover.It discusses and describes the principles behind the development and deployment of generative tools in multimedia creation.The DGMTT offers an all-encompassing structure for comprehending and evaluating the fundamentals and consequences of generative tools in the production of multimedia content.It provides information about the creation and use of these instruments,thereby promoting developments in the digital media industry.These tools create dynamic and interactive multimedia content by utilizing machine learning,artificial intelligence,and algorithms.This theory emphasizes how crucial it is to comprehend the fundamental ideas and principles of generative tools in order to use them efficiently when creating digital media content.A wide range of industries,including journalism,advertising,entertainment,education,and the arts,can benefit from the practical use of DGMTT.It gives artists the ability to use generative technologies to create unique and customized multimedia content for its viewers.

A Survey of Multimedia Big Data

Multimedia big data brings tremendous challenges as well as opportunities for multimedia applications/services. In this paper, we present a survey and tutorial for multimedia big data. After discussing the characteristics of multimedia big data such as human-centricity, multimodality, heterogeneity, unprecedented volume, and so on, this paper provides an overview of the state-of-the-art of multimedia big data, reviews the latest related technologies, and discusses the technical challenges. We conclude this paper with a discussion of open problems and future directions.

多媒体联合案例教学法在老年病学教学中的应用观察

目的探讨多媒体联合案例教学法(case-based learning,CBL)在老年病学教学中的应用效果。方法选取2021年9月—2022年12月河北大学临床医学专业的58名在校本科学生作为研究对象,按照随机数字表法分为传统组(n=29)与联合组(n=29)。传统组给予常规教学方式,联合组给予多媒体联合CBL教学法。比较2组的自主学习能力、理论考核成绩及教学满意度。结果培训后,联合组自主学习能力评分中的学习合作能力[(23.47±4.32)分]、自我管理能力[(29.73±3.65)分]、信息能力评分[(34.81±5.02)分]及总分[(83.49±5.64)分]高于传统组[(20.13±4.25)分、(26.85±3.46)分、(30.51±4.84)分、(75.62±4.42)分],差异有统计学意义(P<0.05)。培训后,联合组的理论考核成绩为(91.36±4.87)分,高于传统组的(82.39±4.63)分,差异有统计学意义(P<0.001)。培训后,联合组的教学总满意度为89.65%,高于传统组的62.07%,差异有统计学意义(P<0.05)。结论多媒体联合CBL教学法在老年病学教学中的应用效果显著,可有效强化学生的自主学习能力,改善理论考核成绩,提升教学满意度。

基于OBE的混合式教学在麻醉科住院医师规范化培训中的应用

目的探讨基于成果导向教育(outcome-based education,OBE)理念的混合式教学在麻醉科住院医师规范化培训教学中的应用效果。方法选取2022年6月—2023年6月在武汉大学人民医院麻醉科进行住院医师规范化培训的50名住院医师,采用随机数字表法分为对照组和研究组,每组25名。对照组开展传统的教学方法,研究组开展以OBE理念为基础,运用微课、腾讯视频会议、钉钉、微信平台等“互联网+”进行混合式教学。经过分组培训后,比较2组学员的麻醉理论知识考核成绩、实践技能成绩和教学质量理想率;评估2组学员对麻醉学的学习兴趣、学习积极性、临床思维以及教学满意度。结果研究组学员的理论考核成绩[(91.67±5.74)分]和实践操作成绩[(90.86±5.12)分]均高于对照组的成绩[(73.56±3.81)分,(75.23±4.50)分],差异有统计学意义(P<0.05)。研究组学员对麻醉学的学习兴趣[(90.59±5.27)分]、学习积极性[(91.50±4.86)分],和临床思维评分[(92.15±5.45)分],均高于对照组[(74.23±4.56)分,(72.78±3.98)分,(76.25±5.10)分],差异有统计学意义(P<0.05)。此外,研究组的教学质量理想率(96.00%)和满意度(92.00%)均高于对照组(60.00%,52.00%),差异有统计学意义(P<0.05)。结论基于OBE理念的混合式教学,可有效提高麻醉科住院医师的临床理论知识和技能操作水平,有利于提升学员的综合能力、增强其对麻醉学的兴趣、学习积极性和临床麻醉思维,进一步提高了麻醉科住院医师规范化培训的教学质量和满意度。