Application of the Just-in-Time Teaching(JiTT)Model in Bilingual Courses of Chinese-Foreign Cooperative Education

The teaching abilities of bilingual teachers have emerged as one of the major bottlenecks hindering the further development of Chinese-foreign cooperative education projects.Implementing the JiTT(Just-in-Time Teaching)model in bilingual courses of Chinese-foreign cooperative education can effectively integrate information technology with traditional classroom teaching.This integration enhances teaching quality and effectiveness,encourages university instructors to improve their diverse and collective capabilities,promotes digital development,and contributes to the enhancement of students’learning abilities and overall improvement.

基于互信息和Just-in-Time优化的回声状态网络

为了提高回声状态网络(ESN)的适应性,提出基于互信息(MI)和Just-in-Time(JIT)的优化方法,对ESN的输入伸缩参数以及输出层进行优化,所得网络称为MI-JIT-ESN.ESN的优化方法分为两部分:一是基于网络输入与输出之间的互信息,对网络的多个输入伸缩参数进行调整;二是基于JIT优化的局部输出层,对ESN的隐层输出数据进行局部重新建模,从而提升ESN输出层的回归拟合精度.将MI-JIT-ESN应用于青霉素补料分批发酵过程建模.结果显示,MI-JIT优化方法能提高模型的适应性,并优于其他比较方法.

Calibration of soft sensor by using Just-in-time modeling and Ada Boost learning method

Soft sensor is an efficacious solution to predict the hard-to-measure target variable by using the process variables.In practical application scenarios, however, the feedback cycle of target variable is usually larger than that of the process variables, which causes the deficiency of prediction errors. Consequently soft sensor cannot be calibrated timely and deteriorates. We proposed a soft sensor calibration method by using Just-in-time modeling and Ada Boost learning method. A moving window consisting of a primary part and a secondary part is constructed.The primary part is made of history data from certain number of constant feedback cycles of target variable and the secondary part includes some coarse target values estimated initially by Just-in-time modeling during the latest feedback cycle of target variable. The data set of the whole moving window is processed by Ada Boost learning method to build an auxiliary estimation model and then target variable values of the latest corresponding feedback cycle are reestimated. Finally the soft sensor model is calibrated by using the reestimated target variable values when the target feedback is unavailable; otherwise using the feedback value. The feasibility and effectiveness of the proposed calibration method is tested and verified through a series of comparative experiments on a pH neutralization facility in our laboratory.

Online Batch Process Monitoring Based on Just-in-Time Learning and Independent Component Analysis

A new method was developed for batch process monitoring in this paper.In the developed method,just-in-time learning(J1TL) and independent component analysis(ICA) were integrated to build JITL-ICA monitoring scheme.JITL was employed to tackle with the characteristics of batch process such as inherent timevarying dynamics,multiple operating phases,and especially the case of uneven length stage.According to new coming test data,the most correlated segmentation was obtained from batch-wise unfolded training data by JITL.Then,ICA served as the principal components extraction approach.Therefore,the non-Gaussian distributed data can also be addressed under this modeling framework.The effectiveness and superiority of JITL-ICA based monitoring method was demonstrated by fed-batch penicillin fermentation.

A Preliminary Study of Just-in-Time Methods for a Seamless Public Transportation Information Framework

A seamless multimodal transit system has been a goal for transportation planners and users. Owing to the developments of advanced public transportation and telecom technologies such as automatic vehicle location (AVL) and real-time passenger information system, key just-in-time (JIT) concepts can now be realized in process design and coordinated scheduling to shape a seamless multimodal transit system. JIT refers to a production system that times both movements of goods during production and delivery from suppliers together. It meets the same logic for seamless multimodal services. Therefore, this study innovatively analyzes possible public transportation technologies for JIT uses;moreover, to layout the possible application frame-work of a transportation technology based JIT multimodal transit system for main station area in Taipei city. With this innovative framework, multimodal transit services can deliver to the right place at right time.

A New Efficient Obstacle Avoidance Control Method for Cars Based on Big Data and Just-in-Time Modeling

This paper provides a new obstacle avoidance control method for cars based on big data and just-in-time modeling. Just-in-time modeling is a new kind of data-driven control technique in the age of big data and is used in various real systems. The main property of the proposed method is that a gain and a control time which are parameters in the control input to avoid an encountered obstacle are computed from a database which includes a lot of driving data in various situations. Especially, the important advantage of the method is small computation time, and hence it realizes real-time obstacle avoidance control for cars. From some numerical simulations, it is showed that the new control method can make the car avoid various obstacles efficiently in comparison with the previous method.

Just-In-Time Hypermedia

Many analytical or computational applications create documents and display screens in response to user queries “dynamically” or in “real time”. Hypermedia features must be generated “just in time” – automatically and dynamically. Conversely, the hypermedia features may have to cause target documents to be generated or re-generated. This paper presents a just-in-time hypermedia framework to provide hypermedia support of virtual documents.

基于“Just-in-Time”原理的信息系统的综合发展

研究了提高解决商业问题的信息技术设备利用率的问题。研究了解决上述问题的方法：改进信息系统；提高信息技术设备培训的强度；改善实用问题解决过程的文件编制；改进信息技术设备的应用规划；在准时制（Just－in－TimeSystem）的组织原理基础上，改善信息技术设备应用过程的管理和标准化。还研究了下列问题：提高信息技术设备对用户需求的满足程度；信息技术设备应用过程的结构化；提高计算机应用对管理质量影响的客观性；研究信息技术设备的合理基础设施。较大注意力集中在最有效的信息技术设备的基础上和应用服务器的最佳状态下，保证信息系统灵活的发展。对在现有技术和财政限制情况下，发展信息技术设备的分阶段的规划方法进行了说明。强调指出了，综合发展信息技术设备基本元件（计算技术设备、保证设备及其基础设施）的重要性。

Local multi-model integrated soft sensor based on just-in-time learning for mechanical properties of hot strip mill process

The mechanical properties of hot rolled strip are the key index of product quality,and the soft sensing of them is an important decision basis for the control and optimization of hot rolling process.To solve the problem that it is difficult to measure the mechanical properties of hot rolled strip in time and accurately,a soft sensor based on ensemble local modeling was proposed.Firstly,outliers of process data are removed by local outlier factor.After standardization and transformation,normal data that can be used in the model are obtained.Next,in order to avoid redundant variables participating in modeling and reducing performance of models,feature selection was applied combing the mechanism of hot rolling process and mutual information among variables.Then,features of samples were extracted by supervised local preserving projection,and a prediction model was constructed by Gaussian process regression based on just-in-time learning(JITL).Other JITL-based models,such as support vector regression and gradient boosting regression tree models,keep all variables and make up for the lost information during dimension reduction.Finally,the soft sensor was developed by integrating individual models through stacking method.Superiority and reliability of proposed soft sensors were verified by actual process data from a real hot rolling process.

Design and Implementation of Java Just-in-Time Compiler

Early Java implementations relied on interpretation, leading to poor performance compared to compiled programs. Java just-in-time (JIT) compiler can compile Java programs at runtime, so it not only improves Java's performance prominently, but also preserves Java's portability. In this paper the design and implementing techniques of Java JIT compiler based on Chinese open system are discussed in detail. To enhance the portability, a translating method which combines the static simulating method and macro expansion method is adopted. The optimization technique for JIT compiler is also discussed and a way to evaluate the hotspots in Java programs is presented. Experiments have been conducted to verify JIT compilation technique as an efficient way to accelerate Java.

Effort-aware cross-project just-in-time defect prediction framework for mobile apps

As the boom of mobile devices,Android mobile apps play an irreplaceable roles in people’s daily life,which have the characteristics of frequent updates involving in many code commits to meet new requirements.Just-in-Time(JIT)defect prediction aims to identify whether the commit instances will bring defects into the new release of apps and provides immediate feedback to developers,which is more suitable to mobile apps.As the within-app defect prediction needs sufficient historical data to label the commit instances,which is inadequate in practice,one alternative method is to use the cross-project model.In this work,we propose a novel method,called KAL,for cross-project JIT defect prediction task in the context of Android mobile apps.More specifically,KAL first transforms the commit instances into a high-dimensional feature space using kernel-based principal component analysis technique to obtain the representative features.Then,the adversarial learning technique is used to extract the common feature embedding for the model building.We conduct experiments on 14 Android mobile apps and employ four effort-aware indicators for performance evaluation.The results on 182 cross-project pairs demonstrate that our proposed KAL method obtains better performance than 20 comparative methods.

动态编译技术研究

本文从动态编译的概念出发,着重讨论了运行时特定化技术和Just-in-time编译技术;比较全面地总结并评述了具有代表性的动态编译系统及其采用的Profiling技术、重编译技术;并探讨了动态编译技术研究中存在的一些问题及进一步的工作。

.NET框架下公共语言运行时组件(CLR)的运行机制

.NET框架是一种新的计算机工作平台,它可以简化在Internet分布式环境下的应用程序开发..NET框架含有两个主要组件:公共语言运行时组件(CLR)和类库组件.公共语言运行时组件是.NET框架的基础所在.简要论述了公共语言运行时组件在.NET框架下的运行机制及其原理.

PFTS和OBS的比较分析

为了适应三网合一（电视网、电话交换网和计算机网络）的发展，本文提出了一种新的基于DWDM的交换技术，称为物理帧时机交换技术（Physical Frame Timeslot Switching，PFTS）。在PFTS交换技术中，一个固定长度的物理帧的传输时间称为一个时隙（time-slot），多个时隙复用到一个波长信道中，PFTS提供了QoS保证机制，将用户数据的传输平面降到单物理层。本文通过S仿真分析将PFTS和光突发交换（Optic Burst Switching，OBS）进行了对比，仿真结果表明对于有QoS保证的服务，PFTS在信道利用率上和交换粒度管理上明显优于OBS。

关于信息技术与《大学信息技术基础》课程整合的探索

信息技术与课程整合是改变传统教学结构、实施创新人才培养的一条有效途径,随着社会信息化不断向纵深发展,各行各业的信息化进程不断加速,同时用人单位对大学毕业生的计算机应用能力要求越来越高。本文从信息时代大学计算机教育的意义、内涵、实施原则;信息技术与《大学信息技术基础》课程的整合;信息技术与《大学信息技术基础》课程整合的教学案例三个方面进行研究探索。

An Efficient Frontier for Sum Deviation JIT Sequencing Problem in Mixed-model Systems via Apportionment

In this paper, the sum deviation just-in-time （JIT） sequencing problem in mixed-model production systems is studied relating with the discrete apportionment problem together with their respective mathematical formulations. The assignment formulation for the first problem is briefly discussed followed by the existence of JIT cyclic sequences. Presenting the concise discussion on divisor methods for the discrete apportionment problem, we have proposed two mean-based divisor functions for this problem claiming that they are better than the existing divisors; hence, we found a better bound for the JIT sequencing problem. The linkage of both the problems is characterized in terms of similar type of objective functions. The problems are shown equivalent via suitable transformations and similar properties. The joint approaches for the two problems are discussed in terms of global and local deviations proposing equitably efficient solution.

Scheduling Flexible Flow Shop in Labeling Companies to Minimize the Makespan

In the competitive global marketplace,production scheduling plays a vital role in planning in manufacturing.Scheduling deals directly with the time to output products quickly and with a low production cost.This research examines case study of a Radio-Frequency Identification labeling department at Avery Dennison.The main objective of the company is to have a method that allows for the sequencing and scheduling of a set of jobs so it can be completed on or before the customer’s due date to minimize the number of late orders.This study analyzes the flexible flow shop scheduling problem with a sequence dependent setup by modifying the processing time and setup time to minimize the makespan on multiple machines.Based on the defined mathematical model,this study includes an alternative approach and application of heuristic algorithm with the input being big data.Both optimization programs are used in this study and compared to determine which method can better solve the company’s problems.The proposed algorithm is able to improve machine utilization with large-scale problems.

Implementing Augmented Reality in Learning

Technologies are changing and ever growing.One of the newest developing technologies is augmented reality(AR),which can be applied to many different existing technologies,such as computers,tablets,and smartphones.AR technology can also be utilized through wearable components,for example,glasses.Throughout this paper review on AR,the following aspects are discussed at length:research explored,theoretical foundations,applications in education,challenges,reactions,and implications.Several different types of AR devices and applications are discussed at length,and an in-depth analysis is done on several studies that have implemented AR technology in an educational setting.

Efficient Fuel Handling and Management in Port:Context Bangladesh

In the last two decades,the supply and demand of fuel in Bangladesh increased enormously because of her economic growth.Likewise,energy and power require helping the industry and basic supplies to the citizens.Recent development of electric power industry,is essential to arrange the necessary facilities at seaport and its further transportation to the consignee premises by applying JIT(just-in-time)approach inevitably.Driven in particular,innovation is required in the prime ports Chittagong and Mongla,what’s more,in newly established Payra port.In addition,regional demand especially from Nepal,Bhutan and Seven Sisters of India for importing fuel through Bangladeshi seaports or pertaining intermodal freight transportation of containerized fuel or tanktainer that cloaked up the derived demand of increasing seaport facilitates in Bangladesh.Another factor that will influence the importing and handling of fuel is the environmental compliance and stringent environmental regulations enacted by IMO(International Maritime Organization),hereby,necessary steps to be taken by port authority or government accordingly.Emerging opportunities,in addition to traditional fuel management at port,coal,LPG(liquefied petroleum gas)and LNG(liquefied natural gas)are the new products for Bangladesh and its neighbors as growing demand of receiving in Bangladeshi ports in a big volume progressively.This paper aims to explore the role of port authorities in the process of developing port and intermodal infrastructure and others to mitigate the uprising demand of fuel handling in port protected area and quick transfer of fuel to the final destination.

Efficient Fuel Handling and Management in Port:Context Bangladesh

In the last two decades,the supply and demand of fuel in Bangladesh increased enormously because of her economic growth.Likewise,energy and power require helping the industry and basic supplies to the citizens.Recent development of electric power industry,it is essential to arrange the necessary facilities at seaport and its further transportation to the consignee premises by applying Just-In-Time(JIT)approach inevitably.Driven in particular,innovation is required in the prime ports Chittagong and Mongla,what’s more,in newly established Payra port.In addition,regional demand especially from Nepal,Bhutan and Seven Sisters of India for importing fuel through Bangladeshi seaports or pertaining intermodal freight transportation of containerized fuel or tanktainer that cloaked up the derived demand of increasing seaport facilitates in Bangladesh.Another factor that will influence the importing and handling of fuel is the environmental compliance and stringent environmental regulations enacted by IMO,hereby,necessary steps to be taken by port authority or government accordingly.Emerging opportunities,in addition to traditional fuel management at port,coal,LPG and LNG are the new products for Bangladesh and its neighbors as growing demand of receiving in Bangladeshi ports in a big volume progressively.This paper aims to explore the role of port authorities in the process of developing port and intermodal infrastructure and others to mitigate the uprising demand of fuel handling in port protected area and quick transfer of fuel to the final destination.