A Survey on the Evaluation Literacy of College English Teachers Under the Online Teaching Mode

Under the online teaching model,the evaluation literacy of college English teachers has become one of the critical factors affecting students’learning effects[1].This study uses a self-compiled questionnaire to investigate the current status of evaluation literacy of college English teachers under the online teaching model from four aspects:evaluation awareness,evaluation knowledge,evaluation ability,and evaluation ethics.The results show that college English teachers’overall evaluation literacy level is relatively high,but there are areas for improvement.Based on the survey results,suggestions are put forward to improve teachers’evaluation literacy,such as changing teaching concepts and increasing self-reflection;strengthening training and learning to enhance professional development awareness;conducting cooperative research and emphasizing team strengths.

Online Delay-Evaluation Control for Networked Control Systems

This paper presented an evaluation approach of time delays for networked control systems (NCS). An improved scheme based on optimal LQG control was designed to achieve desired performance despite the uncertain delays in the system. The experimental results illustrate the effectiveness of the proposed control design and satisfactory performance of the closed loop system.

O2O＇s construction based on the research of Business model with integration of online and offiine channel

With the rapid development of information technology, it appears that a single online channel or a single offline is not able to meet the consumers＇ shopping needs, the enterprises will have a better development only by making the online and offline channels be in fusion and promote each other. This paper will combine the general business modes with corporate channel integration pattern, build out different forms of the market mode including market, enterprise and customers basing on different influence level, and analyze out the enterprise how to implement the business mode of integration basing on the influence factors under the background of different business modes, then apply the corresponding O2O process to the mode, so as to broaden the enterprise selling channels for a better development.

A Study of Appling Online Writing Website to English Writing Teaching: A Structured Critical Review and Evaluation of OWL Online Writing Lab

This report is to evaluate an online writing website. The name of the online resource is the Purdue Online Writing Lab (http://owl.english.purdue.edu/owl/). This website at Purdue University offers writing resources and instructional materials for both teachers and students for in-class or out-of-class teaching and learning of writing. Its interactive, integrative, and pragmatic approach to the teaching and learning of writing on the Internet deserves our attention.

Online Delay-Evaluation Approach in Networked Control Systems

This paper presents an online evaluation approach of time delays for networked control systems (NCS), which characterizes the time delays without any synchronized clock in the network and any assumptions of time delays. With this approach, an optimal control scheme based on the approach is designed to achieve the desired performance despite the uncertain delays in the system. The experimental results based on CANbus illustrate the effectiveness of the proposed control design and satisfactory performance of the closed-loop system.

Should Online Essays Be Used in Academic Evaluations?

China＇s current academic evaluation system sees publications in core journals as a basic index to measure the academic qualification and quality of an academic institute,

以Online Judge为突破口的程序设计课程全过程学业评价改革实践

针对传统学业评价模式的弊病,本文以我校高级语言程序设计课程为例,介绍了以Online Judge(程序在线评测)平台为突破口,实现全过程学业评价的改革,提升学生培养质量。

Legitimation of Business Model Innovation from the Perspective of Evaluator Categorization:A Case Study of the Emergence of Online Car-Hailing

Business model innovation faces multiple tests of legitimacy.Most extant research in this area has been conducted from institutional and strategic perspectives while paying insufficient attention to the perspective of evaluators.Based on the institutionalization of China's online car-hailing industry from 2012 to 2018,this paper analyzes the legitimacy judgment of the stakeholders from the perspective of evaluator categorization and explores the legitimation mechanism of business model innovation.It finds that evaluators judge the legitimacy of business models based on category cognition.Therefore,to achieve the bridging,spillover,and accumulation effects of legitimacy,the legitimation strategy of online car-hailing platforms should dynamically adapt to different evaluators,judgment models,and categorization standards.Ultimately,as quantitative changes lead to qualitative changes,the legitimation of innovative business models is achieved in this way.In this process,stakeholders categorize and evaluate online car-hailing based on prototypes and value goals,and establish a two-way interactive mechanism,which is from behavior guided by cognition to cognition given feedback by behavior.This paper combines the legitimacy judgment with category theory to explain how individual cognition drives the emergence of new categories and identifies a series of legitimacy strategies based on categorization,thus providing theoretical support and practical inspiration for exploring the legitimation of business model innovation.

Social Influence Analysis： Models, Methods, and Evaluation

Social influence analysis （SIA） is a vast research field that has attracted research interest in many areas. In this paper, we present a survey of representative and state-of-the-art work in models, methods, and eval- uation aspects related to SIA. We divide SIA models into two types： microscopic and macroscopic models. Microscopic models consider human interactions and the structure of the influence process, whereas macroscopic models consider the same transmission probability and identical influential power for all users. We analyze social influence methods including influence maximization, influence minimization, flow of influence, and individual influence. In social influence evaluation, influence evaluation metrics are introduced and social influence evaluation models are then analyzed. The objectives of this paper are to provide a comprehensive analysis, aid in understanding social behaviors, provide a theoretical basis for influencing public opinion, and unveil future research directions and potential applications.

Implementation and Evaluation of Infertility Reflection in Early Pregnancy after the Use of Assisted Reproductive Technology: A Feasibility Study

Background: This study aims to evaluate the infertility reflection in early pregnancy after assistive reproductive therapy (ART), including 1) process evaluation (the use and evaluation of infertility reflection) and 2) outcome evaluation (satisfaction of care needs, anticipatory anxiety towards the loss of a pregnancy or fetus, cognition of infertility experience, and depression and anxiety). Methods: This program evaluation study used a one-group pre-post-test design. The participants were 50 primiparas who had undergone ART at two fertility treatment facilities in a metropolitan area in Japan. For the infertility reflection, they conducted an online reflection. Data were collected three times: at the 5th week of pregnancy (Time 1), the 8th week of pregnancy as the final consultation at the clinic (Time 2), and the 16th week of pregnancy as the final point of early pregnancy (Time 3). Results: The data from 40 participants were analyzed. More than 80% of the users of the online reflection positively evaluated the appropriateness and usefulness of the methods and contents. Organized thoughts and feelings by reflection were shown as the reasons for the usefulness. The evaluation of the online reflection showed a relatively strong correlation with the Care Need Satisfaction Scale (CNSS) for both Time 2 and Time 3, but the online reflection did not show a significant correlation with the other outcome variables. There were no significant differences in outcome variables between users and non-users of online reflection between Time 2 and Time 3. Conclusions: Attempts at the reflection in early pregnancy require modified methods that do not have a negative impact and lead to the fulfillment of needs.

A comparative analysis of major Chinese and English online question-answering communities

This paper compares 12 representative Chinese and English online questionanswering communities(Q&A communities) based on their basic functions, interactive modes, and customized services. An empirical experiment from a comparative perspective was also conducted on them by using 12 questions representing for four types of questions,which are assigned evenly to three different subject fields so as to examine the task performance of these 12 selected online Q&A communities. Our goal was to evaluate those online Q&A communities in terms of their quality and efficiency for answering questions posed to them. It was hoped that our empirical research would yield greater understanding and insights to the working intricacy of these online Q&A communities and hence their possible further improvement.

Mechanism and application of an online intelligent evaluation model for energy consumption of a reheating furnace

An online model was proposed to identify the reasons behind changes in the energy consumption of the reheating furnace of a steel processing plant.The heat conversion of the furnace was analyzed and integrated with the fuel consumption of the furnace to obtain a model of the energy consumption.Combined with the mechanism analysis,the basic parameters affecting energy consumption were determined,and four key influencing factors were obtained:furnace output,furnace charging temperature,furnace tapping temperature,and steel type.The specific calculation method of the contribution of each influencing factor was derived to define the conditions of the baseline energy consumption,while the online data were used to calculate the energy value and the actual performance value of the baseline energy consumption.The contribution of each influencing factor was determined through normalization.The cloud platform was used for database reconstruction and programming to realize the online intelligent evaluation of the energy consumption of the reheating furnace.Finally,a case study of the evaluation of the practical energy consumption of a steel rolling furnace in a steel plant was presented.The intelligent evaluation results were quantified and displayed online,and the performance of the system in reducing production line energy consumption was demonstrated.

面向多目标优化主动运维的电能表远程在线评价系统设计

针对传统电能表远程在线评价系统中存在的系统建造成本耗费较大、评价结构过于繁琐等问题,从评价系统的构建和评价算法两方面开展研究。在评价系统的设计方面,加入反馈,使得该评价系统不仅可以整合各项评价指标进行规律化的采集,还可以对评价指标进行实时反馈,提高了评价的效率和评价信息传输的效率。在评价算法方面,基于解耦评价算法对电能表的运行状态和采集数据进行评价,对数据信息进行归纳处理,并根据大量的数据样本进行条理化分析评价。通过仿真实验可知,硬件反馈线路的数据传输效率高达98.6%,具有很好的传输能力。

医学课程在线教学学习效果评价体系研究

面对大数据时代的新要求以及不断变化的新型冠状病毒肺炎疫情挑战,线上教学成为高等教育中备受瞩目的新形式。依托教学平台进行在线教学,能够使优质教育资源共享,为学生带来全新的教学感受,以及个性化体验;同时,平台提供的学生学习行为与学习成绩数据更利于教师精准施教。因此,医学课程在线教学亦需要在多方面进行改进与优化,研究基于教学平台的医学课程在线教学学习效果评价体系将为进一步建设医学一流课程、一流专业提供有力支撑,具有重要的理论意义与实践价值。

在线异步联邦学习的客户优化选择与激励

联邦学习能够在保护用户隐私的前提下,使不同的客户端合作共同训练同一模型,如何激励高质量的客户端参与联邦学习是关键。在线联邦学习环境中,由于参与训练的客户端随机到达和离开,每轮参与报价的客户端动态变化,对客户端的在线质量评估与选择是一个难题。针对这一挑战提出了在线联邦学习激励算法,以优化在线客户端的选择和预算分配,提高预算约束下在线环境联邦学习的性能。该算法将预算按阶段划分并根据历史样本信息计算最优的质量密度阈值,其主要思想是对客户端模型质量进行动态评估,在此基础上采用质量阈值准入机制,同时对参与训练的客户端数量进行限制。从理论上证明了激励算法满足激励相容性、预算可行性和个体理性。实验结果表明,提出的在线激励算法在不同比例搭便车客户端的情况下都能有良好的性能,在预算充足且有搭便车和有误标标签的客户端情况下比已有方法在EMNIST-B和CIFAR-10两个数据集上分别提高约4%和10%。

平台型医学课程在线教学学习效果评价指标与评价标准研究

当前,中国高等教育正积极推动高质量发展,提升高等教育在线课程教学质量是我国高等教育实现“变道超车”的重要战略步骤。就医学课程而言,深入研究平台型医学课程在线教学学习效果评价指标与评价标准是进行学习效果评价的重要前提,是提升平台型医学课程在线教学质量的重要基础。根据“以学生发展为中心”的教育理念,以学习效果评价有利于促进学生与教师发展为宗旨,以医学本科生培养目标、毕业要求、课程目标为具体内容,提出平台型医学课程在线教学学习效果评价指标与评价标准,为平台型医学课程在线教学学习效果评价奠定基础,为促进学生自主学习、教学持续改进提供支撑。

大规模线上教学质量保障体系构建与实证分析

随着信息技术对教育教学方式的影响,长期或短期的大规模线上教学已成为突发应急状态下开展教育教学活动的关键手段,在丰富教学模式的同时也对教学质量提出了新挑战。基于评价优化思想,从教学活动内涵特征出发,提出了“实时数据追踪、短期反馈改进、长期评价优化”的大规模线上教学质量保障体系,并依据教学质量监控数据元素设计,针对Q高校大规模线上教学活动中教学资源、课堂主体、教学方式方法、教学效果等数据进行了实证分析,提出的质量保障体系构建和实施途径对大规模线上教学持续改进十分有效。

在线医疗平台信息生态系统的生态性评价指标体系研究

[目的/意义]在线医疗平台作为一类典型的信息生态系统,其可持续发展依赖于生态性水平。构建生态性评价指标体系,不仅是对在线医疗平台评价指标体系的必要补充,还有助于拓展生态性评价的研究场景。[方法/过程]基于信息生态理论,利用德尔菲法和层次分析法,以DPSIR模型为基础,构建了由“驱动力—压力—状态—影响—响应”5个维度构成的在线医疗平台信息生态系统的生态性评价指标体系。[结果/结论]在线医疗平台应着力于内在动力的激发;信息生态位重叠问题是平台压力的主要来源;提升社会和同行对在线医疗平台的评价是改善平台状态的重要抓手;增强资源吸引力和资源巩固力是提高平台影响力的关键;系统创新能力是强化平台响应能力的重要因素。

安全评价课程线上线下融合教学改革探讨

为推动传统课堂教学向线上线下融合多元化教学的转变,以安全评价课程为例,分析课程的线下教学特点,并通过问卷调查的形式总结线上教学的优势与不足;提出安全评价课程的线上线下融合的改革策略,并搭建线上线下融合的教学体系。分析显示:基于线上教学平台,融合线下课堂互动性强、线上教学效率高、资源整合性强等优势的教学模式更灵活;建立线上线下融合的多元化教学平台,可探索启发式教学方法,引导学生主动学习,实施多维度教学评价。这种教学模式有利于培养学生成为安全专业的技术应用型人才。