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Existing problems that TVU have on learning support service system
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作者 Hong Wu 《International Journal of Technology Management》 2013年第9期67-69,共3页
There are some existing problems that TVU have on learning support service system. By analyzing the status quo of TVU learning support system, we raise problems such as current quality of personnel, teaching resources... There are some existing problems that TVU have on learning support service system. By analyzing the status quo of TVU learning support system, we raise problems such as current quality of personnel, teaching resources, part-time teacher management, teaching facilities, campus culture and other issues. 展开更多
关键词 TVU open education distance education learning support system.
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A Feature Learning-Based Model for Analyzing Students’ Performance in Supportive Learning
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作者 P.Prabhu P.Valarmathie K.Dinakaran 《Intelligent Automation & Soft Computing》 SCIE 2023年第6期2989-3005,共17页
Supportive learning plays a substantial role in providing a quality edu-cation system.The evaluation of students’performance impacts their deeper insight into the subject knowledge.Specifically,it is essential to mai... Supportive learning plays a substantial role in providing a quality edu-cation system.The evaluation of students’performance impacts their deeper insight into the subject knowledge.Specifically,it is essential to maintain the baseline foundation for building a broader understanding of their careers.This research concentrates on establishing the students’knowledge relationship even in reduced samples.Here,Synthetic Minority Oversampling TEchnique(SMOTE)technique is used for pre-processing the missing value in the provided input dataset to enhance the prediction accuracy.When the initial processing is not done substantially,it leads to misleading prediction accuracy.This research concentrates on modelling an efficient classifier model to predict students’perfor-mance.Generally,the online available student dataset comprises a lesser amount of sample,and k-fold cross-validation is performed to balance the dataset.Then,the relationship among the students’performance(features)is measured using the auto-encoder.The stacked Long Short Term Memory(s-LSTM)is used to learn the previous feedback connection.The stacked model handles the provided data and the data sequence for understanding the long-term dependencies.The simula-tion is done in the MATLAB 2020a environment,and the proposed model shows a better trade-off than the existing approaches.Some evaluation metrics like pre-diction accuracy,sensitivity,specificity,AUROC,F1-score and recall are evalu-ated using the proposed model.The performance of the s?LSTM model is compared with existing approaches.The proposed model gives 89% accuracy,83% precision,86%recall,and 87%F-score.The proposed model outperforms the existing systems in terms of the earlier metrics. 展开更多
关键词 Student performance quality education supportive learning feature relationship auto-encoder stacked LSTM
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Word Sense Disambiguation Based Sentiment Classification Using Linear Kernel Learning Scheme
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作者 P.Ramya B.Karthik 《Intelligent Automation & Soft Computing》 SCIE 2023年第5期2379-2391,共13页
Word Sense Disambiguation has been a trending topic of research in Natural Language Processing and Machine Learning.Mining core features and performing the text classification still exist as a challenging task.Here the... Word Sense Disambiguation has been a trending topic of research in Natural Language Processing and Machine Learning.Mining core features and performing the text classification still exist as a challenging task.Here the features of the context such as neighboring words like adjective provide the evidence for classification using machine learning approach.This paper presented the text document classification that has wide applications in information retrieval,which uses movie review datasets.Here the document indexing based on controlled vocabulary,adjective,word sense disambiguation,generating hierarchical cate-gorization of web pages,spam detection,topic labeling,web search,document summarization,etc.Here the kernel support vector machine learning algorithm helps to classify the text and feature extract is performed by cuckoo search opti-mization.Positive review and negative review of movie dataset is presented to get the better classification accuracy.Experimental results focused with context mining,feature analysis and classification.By comparing with the previous work,proposed work designed to achieve the efficient results.Overall design is per-formed with MATLAB 2020a tool. 展开更多
关键词 Text classification word sense disambiguation kernel support vector machine learning algorithm cuckoo search optimization feature extraction
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Lecturers’Efforts in Building Rapport in the English-Medium Instruction(EMI)Context:Focus on the Use of Communication Strategies
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作者 Shiyan YU Jagdish KAUR 《Chinese Journal of Applied Linguistics》 2024年第3期498-513,526,共17页
Past studies reveal the prevalence of anxiety,coupled with low motivation and disengagement among students in English-medium instruction(EMI)programs.Given the detrimental impact these negative emotions can have on le... Past studies reveal the prevalence of anxiety,coupled with low motivation and disengagement among students in English-medium instruction(EMI)programs.Given the detrimental impact these negative emotions can have on learning outcomes,it is imperative that teachers establish positive emotional rapport with their students.This study explores how experienced and highly rated EMI lecturers at a Chinese university’s overseas campus use communication strategies to build rapport with their students during interactive academic activities.It identifies the strategies used by these lecturers and examines how the strategies facilitate the teaching-learning process.The data,consisting of 10 hours of tutorials and 10 hours of supervisor-student supervision meetings,is analyzed using an adapted Conversation Analysis(CA)approach.The analysis reveals three types of communication strategies(CSs)frequently used by lecturers:back-channeling,codeswitching,and co-creation of messages.By employing these strategies,the lecturers established a strong rapport with the students,which created an encouraging and supportive learning environment.Consequently,this positive atmosphere facilitated students’learning of content knowledge through English.The findings of this study have implications for the training of lecturers who encounter difficulties in establishing rapport with multilingual students in the EMI setting. 展开更多
关键词 communication strategies English-medium instruction(EMI) rapport-building lecturer-student interaction supportive learning environment
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Collaborative eye tracking based code review through real-time shared gaze visualization 被引量:1
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作者 Shiwei CHENG Jialing WANG +2 位作者 Xiaoquan SHEN Yijian CHEN Anind DEY 《Frontiers of Computer Science》 SCIE EI CSCD 2022年第3期163-173,共11页
Code review is intended to find bugs in early development phases,improving code quality for later integration and testing.However,due to the lack of experience with algorithm design,or software development,individual ... Code review is intended to find bugs in early development phases,improving code quality for later integration and testing.However,due to the lack of experience with algorithm design,or software development,individual novice programmers face challenges while reviewing code.In this paper,we utilize collaborative eye tracking to record the gaze data from multiple reviewers,and share the gaze visualization among them during the code review process.The visualizations,such as borders highlighting current reviewed code lines,transition lines connecting related reviewed code lines,reveal the visual attention about program functions that can facilitate understanding and bug tracing.This can help novice reviewers to make sense to confirm the potential bugs or avoid repeated reviewing of code,and potentially even help to improve reviewing skills.We built a prototype system,and conducted a user study with paired reviewers.The results showed that the shared real-time visualization allowed the reviewers to find bugs more efficiently. 展开更多
关键词 computer supported collaborative learning computer supported cooperative work social computing FIXATION human computer interaction
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Patterns of Chromatin-Modifications Discriminate Different Genomic Features in Arabidopsis
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作者 Anuj Srivastava Xiaoyu Zhang +2 位作者 Sal LaMarca Liming Cai Russell L. Malmberg 《Tsinghua Science and Technology》 SCIE EI CAS 2013年第5期431-440,共10页
Dynamic regulation and packaging of genetic information is achieved by the organization of DNA into chromatin. Nucleosomal core histones, which form the basic repeating unit of chromatin, are subject to various post-t... Dynamic regulation and packaging of genetic information is achieved by the organization of DNA into chromatin. Nucleosomal core histones, which form the basic repeating unit of chromatin, are subject to various post-translational modifications such as acetylation, methylation, phosphorylation, and ubiquitinylation. These modifications have effects on chromatin structure and, along with DNA methylation, regulate gene transcription.The goal of this study was to determine if patterns in modifications were related to different categories of genomic features, and, if so, if the patterns had predictive value. In this study, we used publically available data(ChIP-chip)for different types of histone modifications(methylation and acetylation) and for DNA methylation for Arabidopsis thaliana and then applied a machine learning based approach(a support vector machine) to demonstrate that patterns of these modifications are very different among different kinds of genomic feature categories(protein, RNA,pseudogene, and transposon elements). These patterns can be used to distinguish the types of genomic features.DNA methylation and H3K4me3 methylation emerged as features with most discriminative power. From our analysis on Arabidopsis, we were able to predict 33 novel genomic features, whose existence was also supported by analysis of RNA-seq experiments. In summary, we present a novel approach which can be used to discriminate/detect different categories of genomic features based upon their patterns of chromatin modification and DNA methylation. 展开更多
关键词 chromatin modification DNA methylation support vector machine machine learning Arabidopsis
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