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Software Defect Prediction Based on Semantic Views of Metrics:Clustering Analysis and Model Performance Analysis
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作者 Baishun Zhou Haijiao Zhao +4 位作者 Yuxin Wen Gangyi Ding Ying Xing Xinyang Lin Lei Xiao 《Computers, Materials & Continua》 2025年第9期5201-5221,共21页
In recent years,with the rapid development of software systems,the continuous expansion of software scale and the increasing complexity of systems have led to the emergence of a growing number of software metrics.Defe... In recent years,with the rapid development of software systems,the continuous expansion of software scale and the increasing complexity of systems have led to the emergence of a growing number of software metrics.Defect prediction methods based on software metric elements highly rely on software metric data.However,redundant software metric data is not conducive to efficient defect prediction,posing severe challenges to current software defect prediction tasks.To address these issues,this paper focuses on the rational clustering of software metric data.Firstly,multiple software projects are evaluated to determine the preset number of clusters for software metrics,and various clustering methods are employed to cluster the metric elements.Subsequently,a co-occurrence matrix is designed to comprehensively quantify the number of times that metrics appear in the same category.Based on the comprehensive results,the software metric data are divided into two semantic views containing different metrics,thereby analyzing the semantic information behind the software metrics.On this basis,this paper also conducts an in-depth analysis of the impact of different semantic view of metrics on defect prediction results,as well as the performance of various classification models under these semantic views.Experiments show that the joint use of the two semantic views can significantly improve the performance of models in software defect prediction,providing a new understanding and approach at the semantic view level for defect prediction research based on software metrics. 展开更多
关键词 Software defect prediction software engineering semantic views CLUSTERING INTERPRETABILITY
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Integration of Lab model and EHOG for human appearance matching across disjoint camera views 被引量:2
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作者 杨彪 林国余 张为公 《Journal of Southeast University(English Edition)》 EI CAS 2012年第4期422-427,共6页
The integration of the Lab model with the extended histogram of oriented gradients (EHOG) is proposed to improve the accuracy of human appearance matching across disjoint camera views under perturbations such as ill... The integration of the Lab model with the extended histogram of oriented gradients (EHOG) is proposed to improve the accuracy of human appearance matching across disjoint camera views under perturbations such as illumination changes and different viewing angles. For the Lab model that describes the global information of observations, a sorted nearest neighbor clustering method is proposed for color clustering and then a partitioned color matching method is used to calculate the color similarity between observations. The Bhattacharya distance is employed for the textural similarity calculation of the EHOG which describes the local information. The global information, which is robust to different viewing angles and scale changes, describes the observations well. Meanwhile, the use of local information, which is robust to illumination changes, can strengthen the discriminative ability of the method. The integration of global and local information improves the accuracy and robustness of the proposed matching approach. Experiments are carried out indoors, and the results show a high matching accuracy of the proposed method. 展开更多
关键词 human appearance matching Lab model extended histogram of oriented gradients (EHOG) disjoint camera views
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基于fisheye views算法解决可视化程序设计语言问题的研究 被引量:1
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作者 沈夏炯 顾军 +1 位作者 王戈 董新法 《计算机应用》 CSCD 北大核心 2009年第1期306-308,336,共4页
可视化程序设计语言已经引起了越来越多学者的研究兴趣,并产生了一系列研究成果。在对编程元素由二维图形对象构成的传统可视化程序设计语言中产生的两个显示问题进行了详细分析,提出引入一种改进的fisheye views算法来解决这些问题的... 可视化程序设计语言已经引起了越来越多学者的研究兴趣,并产生了一系列研究成果。在对编程元素由二维图形对象构成的传统可视化程序设计语言中产生的两个显示问题进行了详细分析,提出引入一种改进的fisheye views算法来解决这些问题的方法。并通过设计的原型系统VPMF表征了该方法的效果和可行性。 展开更多
关键词 可视化程序设计语言 二维可视化编程环境 FISHEYE views small—screen scaling—up
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Adaptive topology learning of camera network across non-overlapping views 被引量:1
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作者 杨彪 林国余 张为公 《Journal of Southeast University(English Edition)》 EI CAS 2015年第1期61-66,共6页
An adaptive topology learning approach is proposed to learn the topology of a practical camera network in an unsupervised way. The nodes are modeled by the Gaussian mixture model. The connectivity between nodes is jud... An adaptive topology learning approach is proposed to learn the topology of a practical camera network in an unsupervised way. The nodes are modeled by the Gaussian mixture model. The connectivity between nodes is judged by their cross-correlation function, which is also used to calculate their transition time distribution. The mutual information of the connected node pair is employed for transition probability calculation. A false link eliminating approach is proposed, along with a topology updating strategy to improve the learned topology. A real monitoring system with five disjoint cameras is built for experiments. Comparative results with traditional methods show that the proposed method is more accurate in topology learning and is more robust to environmental changes. 展开更多
关键词 non-overlapping views mutual information Gaussian mixture model adaptive topology learning cross-correlation function
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Exploring Regional Ecological Cultures in the Upper Reaches of the Yellow River in the Ming and Qing Dynasties from the Perspective of "Top Eight Views" 被引量:1
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作者 冯红英 《Journal of Landscape Research》 2011年第11期36-41,共6页
By studying typical "Top Eight Views" in cities like Xining,Lanzhou and Yinchuan in the upper reaches of the Yellow River,mountain and water landscapes in the study area were analyzed in terms of natural eco... By studying typical "Top Eight Views" in cities like Xining,Lanzhou and Yinchuan in the upper reaches of the Yellow River,mountain and water landscapes in the study area were analyzed in terms of natural ecology;bridges,canals,ferries,pavilions,mansions,towers,temples,historical sites,production and living landscapes were analyzed in terms of humanistic ecology.On this basis,"Top Eight Views" in the upper reaches of the Yellow River were compared and the following conclusions obtained:mountain landscapes were distributed in the whole region,waterscapes unevenly valued in different cities,bridges,canals and ferries mostly located in Ningxia,temples commonly found in all cities,garden arts introduced into cities,traditional cultures carried forward by historical relics.Then the relationship between "Top Eight Views" and regional eco-cultures was analyzed,and it was proposed that humanistic and cultural connotations of these "Top Eight Views" contributed a lot to beautifying urban environment,satisfying needs of the locals' spiritual life,carrying forward local history and culture,enriching urban cultural connotations,expanding living spaces of local residents and improving integrated functions of cities."Top Eight Views" culture complied with the construction gist of urban ecological cultures,and was of great referential value for the construction of urban ecological cultures in the upper reaches of the Yellow River,and also the healthy,scientific and sustainable development of local cities. 展开更多
关键词 "Top EIGHT views" Urban ECOLOGICAL CULTURES The upper reaches of the YELLOW River
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基于Folio Views的SAE CD-ROM检索方法及使用技巧
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作者 张艳英 陈茜 《图书馆学研究》 2005年第10期57-59,共3页
SAE的系列产品作为汽车工程的重要科技文献,具有很高的学术价值。本文对Folio V iews软件、SAECD-ROM内容、基于Folio V iews的SAE CD-ROM的检索方法、检索技巧及如何获取全文进行介绍。
关键词 FOLIO views SAE CD-ROM 检索方法 使用技巧 检索系统 科技文献 汽车工程 系列产品
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Image reconstruction from few views by l_0-norm optimization 被引量:3
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作者 孙玉立 陶进绪 《Chinese Physics B》 SCIE EI CAS CSCD 2014年第7期762-766,共5页
In the medical computer tomography (CT) field, total variation (TV), which is the l1-norm of the discrete gradient transform (DGT), is widely used as regularization based on the compressive sensing (CS) theory... In the medical computer tomography (CT) field, total variation (TV), which is the l1-norm of the discrete gradient transform (DGT), is widely used as regularization based on the compressive sensing (CS) theory. To overcome the TV model's disadvantageous tendency of uniformly penalizing the image gradient and over smoothing the low-contrast structures, an iterative algorithm based on the l0-norm optimization of the DGT is proposed. In order to rise to the challenges introduced by the l0-norm DGT, the algorithm uses a pseudo-inverse transform of DGT and adapts an iterative hard thresholding (IHT) algorithm, whose convergence and effective efficiency have been theoretically proven. The simulation demonstrates our conclusions and indicates that the algorithm proposed in this paper can obviously improve the reconstruction quality. 展开更多
关键词 iterative hard thresholding few views reconstruction SPARSE l0-norm optimization
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Breast Cancer Survivor’s Views on Duration of Follow Up 被引量:2
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作者 Jasim Amin Michael McKirdy 《Advances in Breast Cancer Research》 2013年第2期15-18,共4页
Background: Breast cancer is one of the commonest cancers in women in the UK and western countries [1]. Follow ups after breast cancer diagnosis is usual practice, but there is no agreed consensus among breast care pr... Background: Breast cancer is one of the commonest cancers in women in the UK and western countries [1]. Follow ups after breast cancer diagnosis is usual practice, but there is no agreed consensus among breast care providers on frequency or duration of follow up after diagnosis and adjuvant treatment. The aim of this study is to find out women’s views on the period of the clinical follow up after breast cancer diagnosis. Method: This was a surveillance study in Greenock and Glasgow in the UK (Between September 2009 and December 2010). The study group comprised of 446 Women, 246 with the history of breast cancer diagnosed 1 - 10 years, (median 4.2 years) were asked to complete a questionnaire about their views of preferred duration of follow up while they were waiting for the annual review at a breast clinic, the same questionnaire was completed by 200 women with no history of breast cancer. Results: Between September 2009 and December 2010, 246 patients were included in the study. 40% of patients were within the first three years of follow up, 27% between the 4th and 6th year and 33% were in follow-up for more than 6 years. 63% of cancer survivors think that, 10 years of follow up is necessary for reassurance, detection and treatment of any new, recurrent or spread of their breast cancer. 14% and 22% of women with a history of breast cancer preferred 3 and 5 years review by trained Radiologist/GP respectively. Women without a history of breast cancer were different in their thoughts about follow up after breast cancer: 10%, 25%, and 30% chosen 10, 5 and 3 years, 35% preferred don’t know the answer. Conclusion: Follow up programs for breast cancer survivors need to be organized, evidence based, flexible and patient tailored. Patients’ views should be taken into account when considering provision of follow-up care for breast cancer patients. 展开更多
关键词 BREAST Cancer FOLLOW Up SURVIVORS View CLINIC
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The Views of Family Members about Nursing Care of Psychiatric Patients Admitted at a Mental Hospital in Malawi 被引量:1
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作者 Genesis Chorwe-Sungani Mbumba Namelo +1 位作者 Vincent Chiona Ditress Nyirongo 《Open Journal of Nursing》 2015年第3期181-188,共8页
Family members of a mentally ill person play a crucial role in the recovery of their sick relative. They care for their sick relatives at home and in hospital. Some views of family members indicate that they get satis... Family members of a mentally ill person play a crucial role in the recovery of their sick relative. They care for their sick relatives at home and in hospital. Some views of family members indicate that they get satisfaction from participating in nursing care of their sick relative. The aim of this study was to describe the views of family members about nursing care of psychiatric patients admitted at a mental hospital in Malawi. A qualitative study design was used and data were collected from ten participants through in-depth interviews. Ethical approval was granted by relevant authorities. Data were analysed using Colaizzi method. The findings fell into the following four themes that emerged: family participation in nursing care;nurses’ skills and experience in caring;respect for psychiatric patients and interactions and information sharing. This study offers valuable information about the views of families regarding nursing care of psychiatric patients. They are involved in the care of their sick relatives although there is lack of effective cooperation between them and nurses. The lack of collaboration made families receive inadequate information about their sick relative. Therefore, it is imperative that nurses are competent in implementing family involvement in nursing care. 展开更多
关键词 Family INVOLVEMENT views NURSING CARE PSYCHIATRIC PATIENT
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Austen's Persuasion and Her Views of Marriage and Love
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作者 王文钰 《International English Education Research》 2017年第4期111-113,共3页
Jane Austen was a famous female writer who lived in the period between the end of the 18th century and the beginning of the 19th century. When she was very young, she began to write about the life in the country and a... Jane Austen was a famous female writer who lived in the period between the end of the 18th century and the beginning of the 19th century. When she was very young, she began to write about the life in the country and all kinds of people living around; the basic theme of her most works was love between young men and women. These works not only inherited the traditional realism but also brought the climax of the works of realism in the 19th century, which blew a fresh breeze for the British literature in the early age the 19th century. All these had made a big difference of the development of English literature history. Persuasion was the last full-length novel of Jane Austin, in which she carefully described a nearly perfect female, Anne Eliot, who was beautiful and knowledgeable, and her love story with Wentworth. This paper will discuss Austen" s ideas of love and marriage and reasons of them mainly by analyzing Persuasion. 展开更多
关键词 AUSTEN view of marriage PERSUASION
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On Jane Austen's Views on marriage in Pride and Prejudice 被引量:1
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作者 MEI Zhi-xin 《海外英语》 2013年第1X期190-191,共2页
Marriage and love are eternal topics in our society.Among these works,Pride and Prejudice written by Jane Austen is welcomed all over the world.In this novel,Jane Austen expresses her own opinions about this problem t... Marriage and love are eternal topics in our society.Among these works,Pride and Prejudice written by Jane Austen is welcomed all over the world.In this novel,Jane Austen expresses her own opinions about this problem through the description of four couples'marriage,that is:marriage should not be determined by property and family status.It is unwise to marry without money,but it is also wrong to marry for money.The marriage settled by love is happy and ideal.Her views on marriage have great realistic significance to the modern society.This paper sums up Jane Austen's views on ideal marriage and its great realistic significance to the modern society from the analysis of four different types of marriage in the novel. 展开更多
关键词 PRIDE and PREJUDICE views on MARRIAGE JANE AUSTEN
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Pearl S. Buck's Feminist Views Embodied in her Novels
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作者 刘翠娟 《海外英语》 2014年第15期203-205,共3页
Pearl S. Buck is the first American woman writer who made the East heard in western literature. She is called the"human bridge"for the communication between China and the world outside. She won the Nobel Pri... Pearl S. Buck is the first American woman writer who made the East heard in western literature. She is called the"human bridge"for the communication between China and the world outside. She won the Nobel Prize for her rich and genuine description of Chinese peasant life and masterpiece of biography. Being a woman writer, she expressed her great concern to women's life, which could be seen from her famous works. Owing to the special experience in bilingual culture and the assertion of the equality of any cultures in the world, she was a woman with double cultural view: both of Western and Chinese, which must have decided the formation of her feminist views with the Western and Chinese culture basis. In this thesis, her unique feminist views will be illustrated in detail. 展开更多
关键词 PEARL S BUCK bilingual culture FEMINIST views
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Stakeholders’ Views on Management Arrangements: A Case of Kingfish Fishery in the Sultanate of Oman 被引量:1
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作者 Abdullah Hilal Al-Balushi Shekar Bose Anesh Govender 《Natural Resources》 2016年第5期251-264,共14页
This paper exemplifies a primary step towards eliciting primary and secondary stakeholders’ views on management issues pertaining to kingfish fishery in Oman, and potential options for effective management of the fis... This paper exemplifies a primary step towards eliciting primary and secondary stakeholders’ views on management issues pertaining to kingfish fishery in Oman, and potential options for effective management of the fishery using questionnaire surveys and focus group interviews. There was consensus from stakeholder groups which included fishers, fishery managers, and fishery scientists that the current stock condition is not biologically sustainable. It is found that fishing effort control and technical measures are preferred to catch control by both groups. The role of mass media and the traditional institution in communicating fisheries issues are found to be relatively minor. Although the overall rating on the comprehensiveness of the proposed plan is promising, there are significant differences between the two groups with regard to legislative arrangements (χ<sup>2</sup> = 24.793, p-value = 0.000), management goals (χ<sup>2</sup> = 16.206, p-value = 0.001), operational objectives (χ<sup>2</sup> = 19.884, p-value = 0.000), performance indicators (χ<sup>2</sup> = 15.524, p-value = 0.001), and measures (χ<sup>2</sup> = 13.483, p-value = 0.004). Policy implications of the key findings are discussed in both national and regional contexts. Management authorities can use these findings to design an appropriate plan of actions for achieving sustainability in this fishery. 展开更多
关键词 Sustainability Kingfish Fishery Stakeholder views Management Arrangements Oman
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A Comparative Study on Chinese and American Views of Time
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作者 周海霞 《海外英语》 2013年第14期286-288,共3页
This paper focuses on people's attitude towards time and the reason. In addition, it discusses the cultural implication behind. Through the writing of this paper, readers are able to find out the reasons for the c... This paper focuses on people's attitude towards time and the reason. In addition, it discusses the cultural implication behind. Through the writing of this paper, readers are able to find out the reasons for the conception and behavior conflicts that you might have encountered in your communication. The aim of this paper is to help readers to decrease the chance or avoid of conflicts caused by time views in intercultural communication. 展开更多
关键词 ATTITUDE TIME views COMMUNICATION
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A Study on Kant’s Views on Humanity in His Aesthetics
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作者 Ding Qin 《学术界》 CSSCI 北大核心 2019年第8期228-234,共7页
A key to understand Immanuel Kant's philosophy is his views on humanity,and the cornerstone of Kant’s philosophy is the idea that“beauty is a symbol of morality”.From the perspective of his views on humanity,we... A key to understand Immanuel Kant's philosophy is his views on humanity,and the cornerstone of Kant’s philosophy is the idea that“beauty is a symbol of morality”.From the perspective of his views on humanity,we can have a deep understanding of Kant*s analysis of beauty and the sublime and his aesthetics.The focus of Kant's aesthetics is the realization of human freedom and the sublime,and this is of special humanistic feature. 展开更多
关键词 Kant's AESTHETICS views on HUMANITY SELF-CONFIDENCE FREEDOM and SELF-DISCIPLINE
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Reconstructing Wireframe Model of Curvilinear Objects from Three Orth ographic Views
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作者 张爱军 诸昌钤 《Journal of Modern Transportation》 2001年第2期122-129,共8页
An approach for reconstructing wireframe models of curvilinear objects f rom three orthographic views is discussed in this paper. The method for generati ng 3D conic edges from 2D projection conic curves is emphasized... An approach for reconstructing wireframe models of curvilinear objects f rom three orthographic views is discussed in this paper. The method for generati ng 3D conic edges from 2D projection conic curves is emphasized especially, whic h is the pivotal work for reconstructing curvilinear objects from three orthogra phic views. In order to generate 3D conic edges, a five-point method is firstly utilized to obtain the algebraic representations of all 2D-projection curves i n each view, and then all algebraic forms are converted to the corresponding geo metric forms analytically. Thus the locus of a 3D conic edge can be derived from the geometric forms of the relevant conic curves in three views. Finally, the w ireframe model is created after eliminating all redundant elements generated in previous reconstruction process. The approach extends the range of objects to be reconstructed and imposes no restriction on the axis of the quadric surface. 展开更多
关键词 RECONSTRUCTION orthographic views wireframe model CONIC
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Exploring the Views of Parents of Children Following Telephone Advice from Nurses Working in a GP Out-of-Hours in Ireland
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作者 Abedallah Kasem 《Open Journal of Pediatrics》 2018年第4期334-346,共13页
This paper focuses on parents’ use and experiences of general practitioner (GP) out-of-hours (OOHs) services in Ireland. The progress in the establishment of GP OOHs services is considered by the Health Service Execu... This paper focuses on parents’ use and experiences of general practitioner (GP) out-of-hours (OOHs) services in Ireland. The progress in the establishment of GP OOHs services is considered by the Health Service Executive (HSE) to be a highly significant quality initiative for patient care, and the health service as a whole. Outside of normal GP surgery hours, parents of children can call a dedicated telephone number, to have their urgent health concerns assessed and to be advised about the appropriate level of care. Experienced nurses, who are often based in a GP OOHs centre, assess the call over the telephone and provide advice to the callers. The spur for conducting this study arose from my personal and professional experience which, I believe, underscores the need for exploring and understanding parents’ views of GP OOHs services, in order to bring about change in nurses’ practice of delivering advice over the telephone. The overall aim of the study is to explore and understand the views of parents of children, aged two years and under, following telephone advice received from nurses in the context of a GP out-of-hours service. A qualitative, exploratory, and descriptive design was used to examine the views and experiences of parents of children aged two years and under, who used a GP out-of-hours service provider in Ireland. Nine parents who had received phone advice from a nurse were purposively sampled to take part in the study. Data were collected using semi-structured interviews by telephone. Data were transcribed and analysed thematically. Themes included parents’ perceptions of illness in children with the need to be heard, parents’ views about accessibility to GP OOHs, parents’ expectations that the service would offer guidance and reassurance, parents’ satisfaction with the nurse’s advice, and parents’ experiences of hospital emergency departments (EDs). Suggestions for improving the GP OOHs service were made across these themes. The suggestions include: higher staffing levels, wanting a quicker call back, preference for face-to-face assessment over telephone advice and a preference for a children’s area in the GP OOHs. The study revealed that parents are satisfied with the GP OOHs service and the parental decision-making model has the potential to provide an opportunity to continue the progress of the establishment of GP OOHs services in Ireland. 展开更多
关键词 TELEPHONE ADVICE GP Out-of-Hours Patients’ Experiences or views TELEPHONE Consultation Parents’ views or Experience PARENTS of CHILDREN TELEPHONE Information Service Clinical Decision Support Software
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Teaching method for reading views by analyzing lines and planes
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作者 张庆伟 《Journal of Chongqing University》 CAS 2006年第3期137-142,共6页
This paper deals with the teaching method in reading engineering drawing. It introduces the basic theory and fundamental ideas as well as the approach of reading views by analyzing lines and planes. It gives out the s... This paper deals with the teaching method in reading engineering drawing. It introduces the basic theory and fundamental ideas as well as the approach of reading views by analyzing lines and planes. It gives out the steps for completing the third view based on the other two views. As it is easy and quick for students to read and understand views by this method, it is welcome by students in teaching practice. 展开更多
关键词 projection rule reading view analyzing lines and planes: parallel PERPENDICULAR
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Social Networks, Politics and Public Views: An Analysis of the Term “Macedonia” in Twitter
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作者 Dimitrios Kydros Vasiliki Vrana Evangelos Kehris 《Social Networking》 2019年第1期1-15,共15页
In this paper we deal with Twitter and the presence of the keyword “Macedonia” in tweets over a period of time. We searched for the same term in three different languages, i.e. “Μακεδονíα”, “Macedoni... In this paper we deal with Twitter and the presence of the keyword “Macedonia” in tweets over a period of time. We searched for the same term in three different languages, i.e. “Μακεδονíα”, “Macedonia” and “Македонска - Македониjа”, since we are primarily interested in views from Greece and FYROM without excluding views from other regions. We use methods from Social Network Analysis (SNA) in order to create networks of users, calculate some main network metrics, measure user importance and investigate the presence of possible fragmentations—communities among them. We furthermore proceed to a form of content analysis, using pairs of words within tweets, in order to obtain main ideas, trends and public views that circulated over the network. 展开更多
关键词 Social Network ANALYSIS TWITTER MACEDONIA Μακεδονíα Македонска - Македониjа Content ANALYSIS Public views
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urname Reform and Family Planning—─Views from Contributors
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《China Population Today》 1997年第6期16-17,共2页
Traditional surname syster and the idea regarding men as superior to women have ruled Chinese society for thousands of years and caused the occurrence of many tragic events in Chinese history and even now.These ideas ... Traditional surname syster and the idea regarding men as superior to women have ruled Chinese society for thousands of years and caused the occurrence of many tragic events in Chinese history and even now.These ideas sti1l shack1e some people's minds. 展开更多
关键词 Contributors FAMILY PLANNING REFORM views
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