检索结果-内蒙古大学图书馆

Working Conference on Reverse engineering

作者： M. Balazinska E. Merlo M. Dagenais B. Lague K. Kontogiannis Quality Engineering and Research Group Bell Canada Limited Montreal QUE Canada Department of Electrical a.nd Computer Engineering Ecole Polytechnique de Montreal Montreal QUE Canada Department of Electrical and Computer Engineering University of Waterloo Waterloo ONT Canada

Manual source code copy and modification is often used by programmers as an easy means for functionality reuse. Nevertheless, such practice produces duplicated pieces of code or clones whose consistent maintenance might be difficult to achieve. It also creates implicit links between classes sharing a functionality. Clones are therefore good candidates for system redesign. This paper presents a novel approach for computer-aided clone-based object-oriented system refactoring. The approach is based on an advanced clone analysis which focuses on the extraction of clone differences and their interpretation in terms of programming language entities. It also focuses on the study of contextual dependencies of cloned methods. The clone analysis has been applied to JDK 1.1.5, a large scale system of 150 KLOC.

关键词： Cloning Programming profession software systems Electronic mail computer languages Large-scale systems software libraries Information analysis

来源：评论

学校读者我要写书评

暂无评论

C/C++ conditional compilation analysis using symbolic execution

C/C++ conditional compilation analysis using symbolic execut...

引用

International Conference on software Maintenance (ICSM)

作者： Ying Hu Merlo Dagenais Lague Department of Electrical and Computer Engineering Ecole Polytechnique de Montreal Montreal QUE Canada Polytechnique Montreal Montreal QC CA Quality Engineering and Research Group Bell Canada Limited Montreal QUE Canada

Conditional compilation is one of the most powerful parts of a C/C++ environment available for building software for different platforms with different feature sets. Although conditional compilation is powerful, it can be difficult to understand and is error-prone. In large software systems, file inclusion, conditional compilation and macro substitution are closely related and are often largely interleaved. Without adequate tools, understanding complex header files is a tedious task. This practice may even be complicated as the hierarchies of header files grow with projects. This paper presents our experiences of studying conditional compilation based on the symbolic execution of preprocessing directives. Our two concrete goals are: for any given preprocessor directive or C/C++ source code line, finding the simplest sufficient condition to reach/compile it, and finding the full condition to reach/compile that code line. Two different strategies were used to achieve these two goals. A series of experiments conducted on the Linux kernel are presented.

关键词： C language

来源：评论

学校读者我要写书评

暂无评论

Composite performance and availability analysis of communications networks. A comparison of exact and approximate approaches

Composite performance and availability analysis of communica...

引用

Globecom '00 - IEEE. Global Telecommunications Conference. Conference Record (Cat. No.00CH37137)

作者： Y. Ma J.J. Han K.S. Trivedi Global Software Group Motorola Inc. Elk Grove Village IL USA Department of Electrical & Computer Engineering Duke University Durham NC USA

The traditional pure performance model that ignores failure and recovery but considers resource contention generally overestimates the system's ability to perform a certain job. On the other hand, pure availability analysis tends to be too conservative since performance considerations are not taken into account. To obtain realistic composite performance and availability measures, one should consider performance changes that are associated with failure recovery behavior. In this paper, a brief review is first given of the advances in composite performance and availability analysis. Then three techniques for composite performance and availability analysis are discussed in detail through a queueing system in a wireless communications network.

关键词： Availability Performance analysis Communication networks software performance Queueing analysis Degradation Hardware Humans System performance Throughput

来源：评论

学校读者我要写书评

暂无评论

E/R schema for the Datrix C/C++/Java exchange format

E/R schema for the Datrix C/C++/Java exchange format

引用

Working Conference on Reverse engineering

作者： R.C. Holt A.E. Hasan B. Lague S. Lapierre C. Leduc Quality Engineering and Research Bell Canada Limited Montreal QUE Canada University of Waterloo Waterloo ON CA Software Architecture Group (SWAG) Department of Computer Science University of Waterloo Waterloo ONT Canada

A SEF (software exchange format), such as GXL (Holt et al., 2000), TA (Holt, 1997) or RSF (Wong, 1996), is used to exchange data between tools that analyze software. Researchers at Bell Canada have specified the Datrix SEF in TA (and soon to be, GXL) for C, C++ and Java. It is designed so that a parser for the language, C, C++ or Java, can read a source program and emit the program's abstract syntax tree (AST) in the Datrix format. This note explains how an entity/relation (E/R) schema (Chen, 1976) was extracted for Datrix, and gives this schema as an E/R diagram.

关键词： Java Testing Documentation software tools Data mining software architecture computer science Reverse engineering Tree graphs Natural languages

来源：评论

学校读者我要写书评

暂无评论

Extending software quality assessment techniques to Java systems

Extending software quality assessment techniques to Java sys...

引用

IEEE Workshop on Program Comprehension

作者： J.-F. Patenaude E. Merlo M. Dagenais B. Lague Department of Electrical and Computer Engineering Ecole Polytechnique de Montreal Montreal QUE Canada Quality Engineering and Research (QER) group Montreal QUE Canada

The paper presents extensions to Bell Canada source code quality assessment suite (DATRIX tm) for handling Java language systems. Such extensions are based on source code object metrics, including Java interface metrics, which are presented and explained in detail. The assessment suite helps to evaluate the quality of medium-large software systems identifying parts of the system which have unusual characteristics. The paper also studies and reports the occurrence of clones in medium-large Java software systems. Clone presence affects quality since it increases a system size and often leads to higher maintenance costs. The clone identification process uses Java specific metrics to determine similarities between methods throughout a system. The results obtained from experiments with software evaluation and clone detection techniques, on over 500 KLOC of Java source code, are presented.

关键词： software quality Java Cloning software performance software maintenance software tools Performance analysis ISO standards quality assessment electrical capacitance tomography

来源：评论

学校读者我要写书评

暂无评论

Measuring clone based reengineering opportunities

Measuring clone based reengineering opportunities

引用

International Symposium on software Metrics

作者： M. Balazinska E. Merlo M. Dagenais B. Lague K. Kontogiannis Department of Electrical and Computer Engineering École Polytechnique de Montréal Montreal QUE Canada Quality Engineering and Research Group Bell Canada Limited Montreal QUE Canada Department of Electrical and Computer Engineering University of Waterloo Waterloo ONT Canada

Code duplication, plausibly caused by copying source code and slightly modifying it, is often observed in large systems. Clone detection and documentation have been investigated by several researchers in the past years. Recently, research focus has shifted towards the investigation of software and process restructuring actions based on clone detection. This paper presents an original definition of a clone classification scheme useful to assess and measure different system reengineering opportunities. The proposed classification considers each group of cloned methods in terms of the meaning of the differences existing between them. The algorithm used for automatic classification of clones is presented together with results obtained by classifying cloned methods and measuring reengineering opportunities in six freely available systems whose total size is about 500 KLOC of Java code.

关键词： Cloning Pattern matching software systems Size measurement Java software libraries electrical capacitance tomography Programming profession Documentation Fingerprint recognition

来源：评论

学校读者我要写书评

暂无评论

Partial redesign of Java software systems based on clone analysis

Partial redesign of Java software systems based on clone ana...

引用

Working Conference on Reverse engineering

作者： M. Balazinska E. Merlo M. Dagenais B. Lague K. Kontogiannis Department of Electrical and Computer Engineering Ècole Polytechnique de Montréal Montreal QUE Canada Bell Canada Quality Engineering and Research (QER) Group Montreal QUE Canada Department of Electrical and Computer Engineering University of Waterloo Waterloo ONT Canada

Code duplication, plausibly caused by copying source code and slightly modifying it, is often observed in large systems. Clone detection and documentation have been investigated by several researchers in past years. Recently, research focus has shifted towards the investigation of software and process restructuring actions based on clone detection. The paper presents a new redesign approach developed for Java software systems. The approach factorizes the common parts of cloned methods and parameterizes their differences using the strategy design pattern. The new entities created by such transformations are also decoupled from the original contexts of their use, thus facilitating reuse and increasing maintainability. The applicability and automation of the technique presented in the paper have been verified by partially redesigning JDK 1.1.5.

关键词： Java software systems Cloning Pattern matching Documentation Design automation software libraries Programming profession Fingerprint recognition Dynamic programming

来源：评论

学校读者我要写书评

暂无评论

Preface

引用

Lecture Notes in computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) 1999年 1640卷 V-VI页

作者： Tepfenhart, William Cyre, Walling Software Engineering Department Monmouth University West Long BranchNJ United States Virginia Tech Automatic Design Research Group The Bradley Department of Electrical and Computer Engineering BlacksburgVA United States

来源：评论

学校读者我要写书评

暂无评论

Modelling formal integrated component retrieval

Modelling formal integrated component retrieval

引用

International Conference on software Reuse

作者： S. Atkinson Reusable Software Research Group Department of Computer Science and Electrical Engineering West Virginia University Morgantown WV USA

A fundamental problem associated with libraries of software components is that of retrieval: how to find specific components that can be used in the construction of a particular application. Approaches to this problem can be classified into three categories based upon the way components are represented: synthetic classification, structural matching and behavioral matching. The objective of the paper is to unify these existing approaches to the component retrieval problem into a formally specified framework, thereby enabling a rigorous description of integrated retrieval schemes.

关键词： software libraries computer science software reusability Large-scale systems Pipeline processing Vocabulary Ontologies

来源：评论

学校读者我要写书评

暂无评论

Royal Academy of Medicine in Ireland - Section of Bioengineering - Proceedings of meeting held in Dundalk, Co. Louth, in February 1998.

引用

IRISH JOURNAL OF MEDICAL SCIENCE 1998年第4期167卷 256-276页

作者： [Anonymous] Orthopaedic Research Unit The Queen’s University of Belfast School of Biomedical Sciences The Queen’s University of Belfast Howmedica International Ltd. Raheen Industrial Estate Limerick Department of Mechanical Engineering Trinity College Dublin 2 Mater Hospital Dublin 7 Orthopaedic Research Laboratory Århus University Hospital Denmark University of Limerick Limerick Limerick Regional Hospital Raheen Limerick Boston Scientific Ireland Ltd. Galway Department of Mechanical Engineering University College Dublin Dublin Department of Electrical and Electronic Engineering University College Dublin Dublin Bioengineering Research Centre Department of Mechanical Engineering University College Dublin Dublin Northern Ireland Bio-Engineering Centre (NIBEC) School of Electrical and Mechanical Engineering University of Ulster Newtownabbey Department of Mechanical & Manufacturing Engineering The Ashby Building The Queen’s University of Belfast Johnson and Johnson Professional Orthopaedic Division Queensway England Department of Cardiology and Department of Medical Physics & Bioengineering St. James’s Hospital Dublin 8 Burke House Ellison Street Castlebar Royal College of Surgeons in Ireland Department of Surgery Beaumont Hospital Dublin Department of Electronic and Electrical Engineering Trinity College Dublin 2 Department of Aeronautical Engineering The Queen’s University of Belfast Vascular Unit Belfast City Hospital Department of Medical Physics and Bioengineering St. James’s Hospital Dublin 8 Centre for Biomedical Electronics Department of Electronic and Computer Engineering University of Limerick Limerick Department of Mechanical and Aeronautical Engineering University of Limerick Limerick School of Health Sciences University of Ulster Ireland School of Physiotherapy University of Ulster Newtownabbey Clinical Engineering NI Medical Physics Agency Belfast and Radiology Royal Victoria Hospital Musgrave Park Hospital University of Limerick Biomedical Institute (ULBMI) Uni

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：