The defects in object-oriented models will result in poor quality of applications based on the models, and thus it is necessary to know which defects often occur in practice, to what extent they occur, why they occur,...The defects in object-oriented models will result in poor quality of applications based on the models, and thus it is necessary to know which defects often occur in practice, to what extent they occur, why they occur, and how they can be prevented. To gain deeper insights into these problems, this paper discusses how to improve the quality of object- oriented models from novice modelers through project prac- tice. This paper summarizes a set of typical quality defect types from a large number of the defects, and confirms them through our project practice. Moreover, the paper analyzes the improvement of the quality of object-oriented models by quantifying the level of occurrence for the defect types in dif- ferent phases of the project practice, and presents preventive measures by analyzing the causes for the defects to occur in object-oriented models in the aspects of syntax, semantics, and pragmatics.展开更多
With rapidly increasing massive data,mankind is entering a new era of big data.This brings new opportunities and challenges to modern society,and big data techniques also play an important role in advancing techniques...With rapidly increasing massive data,mankind is entering a new era of big data.This brings new opportunities and challenges to modern society,and big data techniques also play an important role in advancing techniques of computer science(CS)and software engineering(SE).To keep pace with developments in technology,more and more university universities are incorporating big data into their curriculum courses.However,it is distinguished from traditional CS/SE courses and big data courses.This paper attempts to think deeply about the course construction of introduction to big data from the cultivation of data thinking,and further explore the implementation result and existing problems of the course,so as to better carry out the teaching of big data course.展开更多
In recent years,as one of the main technical ways to realize artificial intelligence,deep learning has attracted more and more attention of researchers from universities,research institutions and Internet enterprises....In recent years,as one of the main technical ways to realize artificial intelligence,deep learning has attracted more and more attention of researchers from universities,research institutions and Internet enterprises.As a result,more and more universities are incorporating deep learning into their curriculum planning.However,there is a big difference between deep learning and previous courses.This paper attempts to think about the course construction of deep learning,and discusses the implementation and existing problems of the course,so as to better carry out the teaching of deep learning.展开更多
With the advancement of the construction of emerging engineering education,the reform of practical teaching has become an important task of higher engineering education.This article takes the course“Linux Operating S...With the advancement of the construction of emerging engineering education,the reform of practical teaching has become an important task of higher engineering education.This article takes the course“Linux Operating System Fundamentals”as an example to explore practical teaching reform in the context of emerging engineering education.By analyzing the current situation and problems in course practical teaching,we proposed practical teaching reforms such as online experiments,practical content updates,project-based engineering practices,and diversified evaluation models,and designed corresponding implementation plans.Practice has proved that this reform can improve students’learning interest and engineering practical skills,and cultivate outstanding engineers with innovative spirit and practical skills.展开更多
Inaccuracy of modeling for line commutated converter based high voltage direct current (LCC-HVDC) systems will degrade the reliability of small-signal stability analysis results. Taking a practical project as the stud...Inaccuracy of modeling for line commutated converter based high voltage direct current (LCC-HVDC) systems will degrade the reliability of small-signal stability analysis results. Taking a practical project as the study system, this paper establishes a modified dynamic model by modifying the current switching function, firing angle calculation and DC voltage calculation. Then, the accuracy of the modified model is verified by a detailed electromagnetic transient (EMT) simulation. Finally, with the modified dynamic model, the impact of the control parameters and AC system strength on the small-signal stability of the overall system is investigated by adopting the eigen-analysis. The results clearly demonstrate that the modified model shows higher accuracy than the original model.展开更多
文摘The defects in object-oriented models will result in poor quality of applications based on the models, and thus it is necessary to know which defects often occur in practice, to what extent they occur, why they occur, and how they can be prevented. To gain deeper insights into these problems, this paper discusses how to improve the quality of object- oriented models from novice modelers through project prac- tice. This paper summarizes a set of typical quality defect types from a large number of the defects, and confirms them through our project practice. Moreover, the paper analyzes the improvement of the quality of object-oriented models by quantifying the level of occurrence for the defect types in dif- ferent phases of the project practice, and presents preventive measures by analyzing the causes for the defects to occur in object-oriented models in the aspects of syntax, semantics, and pragmatics.
基金supported by the Fundamental Research Funds for the Central Universities(Grant No.2021RC235).
文摘With rapidly increasing massive data,mankind is entering a new era of big data.This brings new opportunities and challenges to modern society,and big data techniques also play an important role in advancing techniques of computer science(CS)and software engineering(SE).To keep pace with developments in technology,more and more university universities are incorporating big data into their curriculum courses.However,it is distinguished from traditional CS/SE courses and big data courses.This paper attempts to think deeply about the course construction of introduction to big data from the cultivation of data thinking,and further explore the implementation result and existing problems of the course,so as to better carry out the teaching of big data course.
文摘In recent years,as one of the main technical ways to realize artificial intelligence,deep learning has attracted more and more attention of researchers from universities,research institutions and Internet enterprises.As a result,more and more universities are incorporating deep learning into their curriculum planning.However,there is a big difference between deep learning and previous courses.This paper attempts to think about the course construction of deep learning,and discusses the implementation and existing problems of the course,so as to better carry out the teaching of deep learning.
基金2023 China University of Geosciences(Beijing)Undergraduate Education Quality Improvement Plan Construction Project,including“Linux Operating System”Practical Teaching Reform(Project number:JG202215)“University Computer”Online Experiment Construction(Project number:JG202216)+1 种基金CUGB-Zhonggong Computer Science and Technology Off-Campus Practical Teaching Base(Project number:SSJJD202201)Ministry of Education Fund Project:Research and Development of Computer Vision Practical Courses Based on Deep Learning(Project number:2022BC003)。
文摘With the advancement of the construction of emerging engineering education,the reform of practical teaching has become an important task of higher engineering education.This article takes the course“Linux Operating System Fundamentals”as an example to explore practical teaching reform in the context of emerging engineering education.By analyzing the current situation and problems in course practical teaching,we proposed practical teaching reforms such as online experiments,practical content updates,project-based engineering practices,and diversified evaluation models,and designed corresponding implementation plans.Practice has proved that this reform can improve students’learning interest and engineering practical skills,and cultivate outstanding engineers with innovative spirit and practical skills.
基金supported in part by the National Natural Science Foundation of China(No.51877077).
文摘Inaccuracy of modeling for line commutated converter based high voltage direct current (LCC-HVDC) systems will degrade the reliability of small-signal stability analysis results. Taking a practical project as the study system, this paper establishes a modified dynamic model by modifying the current switching function, firing angle calculation and DC voltage calculation. Then, the accuracy of the modified model is verified by a detailed electromagnetic transient (EMT) simulation. Finally, with the modified dynamic model, the impact of the control parameters and AC system strength on the small-signal stability of the overall system is investigated by adopting the eigen-analysis. The results clearly demonstrate that the modified model shows higher accuracy than the original model.
