检索结果-内蒙古大学图书馆

TMiner aspects: Crosscutting concerns in the TMiner component-based data mining framework

EXPERT SYSTEMS WITH APPLICATIONS 2010年第9期37卷 6675-6681页

作者： Berzal, Fernando Cortijo, Francisco J. Jimenez, Aida Univ Granada ETSIIT Dept Comp Sci & Artificial Intelligence E-18071 Granada Spain

TMiner (Berzal, Cubero, & Jimenez, 2009) is a component-based data mining framework that has been designed to support the whole KDD process and facilitate the implementation of complex data mining scenarios. This paper shows how aspect-oriented programming techniques support some tasks whose implementation using conventional object-oriented programming would be extremely time-consuming and error-prone. In particular, we have successfully employed aspects in TMiner to evaluate and monitor the I/O performance of alternative data mining techniques. Without having to modify the source code of the system under analysis, aspects provide an unintrusive mechanism to perform this kind of performance analysis. In fact, aspects let us probe a system implementation so that we can identify potential bottlenecks, detect redundant computations, and characterize system behavior + lessons learned during the development of TMiner. (C) 2010 Elsevier Ltd. All rights reserved.

关键词： Data mining Component-based systems aspect-oriented programming Crosscutting concerns Design patterns Performance monitoring

来源：评论

学校读者我要写书评

暂无评论

JastAdd - an aspect-oriented compiler construction system

引用

SCIENCE OF COMPUTER programming 2003年第1期47卷 37-58页

作者： Hedin, G Magnusson, E Lund Univ Dept Comp Sci S-22100 Lund Sweden

We describe JastAdd, a Java-based system for compiler construction. JastAdd is centered around an object-oriented representation of the abstract syntax tree where reference variables can be used to link together different parts of the tree. JastAdd supports the combination of declarative techniques (using Reference Attributed Grammars) and imperative techniques (using ordinary Java code) in implementing the compiler. The behavior can be modularized into different aspects, e.g. name analysis, type checking, code generation, etc., that are woven together into classes using aspect-oriented programming techniques, providing a safer and more powerful alternative to the Visitor pattern. The JastAdd system is independent of the underlying parsing technology and supports any noncircular dependencies between computations, thereby allowing general multi-pass compilation. The attribute evaluator (optimal recursive evaluation) is implemented very conveniently using Java classes, interfaces, and virtual methods. (C) 2002 Elsevier Science B.V. All rights reserved.

关键词： reference attributed grammars aspect-oriented programming compiler construction visitor pattern Java

来源：评论

学校读者我要写书评

暂无评论

aspectising honeytokens to contain the insider threat

引用

IET INFORMATION SECURITY 2015年第4期9卷 240-247页

作者： Padayachee, Keshnee Univ S Africa UNISA ZA-0001 Pretoria South Africa

The aim of this study is to provide a generic implementation strategy for honeytokens deployed within a database management system that leverages the aspect-oriented paradigm to contain the insider threat. This approach is tested by developing a proof-of-concept prototype in an aspect-oriented language, namely aspectJ. This study also reflects on design and implementation challenges involved in the deployment of honeytokens to contain the insider threat. Consequently, aspect-orientation is proposed as a means to resolve some of these challenges.

关键词： aspect-oriented programming database management systems security of data aspectJ aspect-oriented language database management system honeytokens insider threat

来源：评论

学校读者我要写书评

暂无评论

An aspect-oriented approach for the systematic security hardening of code

引用

COMPUTERS & SECURITY 2008年第3-4期27卷 101-114页

作者： Mourad, Azzam Laverdiere, Marc-Andre Debbabi, Mourad Concordia Univ Comp Secur Lab Concordia Inst Informat Syst Engn Montreal PQ H3G 1M8 Canada

In this paper, we present an aspect-oriented approach for the systematic security hardening of source code. It aims at allowing developers to perform software security hardening by providing an abstraction over the actions required to improve the security of the program. This is done by giving them the capabilities to specify high-level security hardening plans that leverage a priori defined security hardening patterns. These patterns describe the required steps and actions to harden security code, including detailed information on how and where to inject the security code. We show the viability and relevance of our approach by: (1) elaborating security hardening patterns and plans to common security hardening practices, (2) realizing these patterns by implementing them into aspect-oriented languages, (3) applying them to secure applications, (4) testing the hardened applications. Furthermore, we discuss, in this paper, our insights on the appropriateness, strengths and limitations of the aspect-oriented paradigm for security hardening. (C) 2008 Elsevier Ltd. All rights reserved.

关键词： security hardening security hardening patterns security hardening plans aspect-oriented programming computer security security patterns secure programming

来源：评论

学校读者我要写书评

暂无评论

Distribution and persistence as aspects

引用

SOFTWARE-PRACTICE & EXPERIENCE 2006年第7期36卷 711-759页

作者： Soares, Sergio Borba, Paulo Laureano, Eduardo Pernambuco State Univ Dept Comp Syst BR-50720001 Recife PE Brazil Univ Fed Pernambuco Informat Ctr BR-50732970 Recife PE Brazil Microsoft Corp Redmond WA 98052 USA

This paper reports our experience using aspectJ, a general-purpose aspect-oriented extension to Java, to implement distribution and persistence concerns in a Web-based information system. This system was originally implemented in Java and restructured with aspectJ. Our main contribution is to show that aspectJ is useful for implementing several persistence and distribution concerns in the considered application, but also in similar applications. We have also identified interferences between the implemented aspects and a few drawbacks in the language, so we suggest some minor language modifications that could significantly improve similar implementations. Despite those problems, we argue that the aspectJ implementation is superior to the pure Java implementation. Some of the aspects implemented in our experiment are abstract and constitute a simple aspect framework. The other aspects are application specific but we suggest that different implementations might follow the same aspect patterns. The framework and the patterns allow us to propose architecture-specific guidelines that provide practical advice for both restructuring and implementing certain kinds of persistent and distributed applications with aspectJ. Copyright (c) 2006 John Wiley & Sons, Ltd.

关键词： aspect-oriented programming separation of concerns framework persistence distribution

来源：评论

学校读者我要写书评

暂无评论

A language for high-level description of adaptive web systems

引用

JOURNAL OF SYSTEMS AND SOFTWARE 2008年第7期81卷 1196-1217页

作者： Sadat-Mohtasham, S. Hossein Ghorbani, Ali A. Univ New Brunswick Fac Comp Sci Intelligent & Adapt Syst Grp Fredericton NB E3B 5A3 Canada

Adaptive Web systems (AWS) are Web-based systems that can adapt their features such as, presentation, content, and structure, based on users' behaviour and preferences, device capabilities, and environment attributes. A framework was developed in our research group to provide the necessary components and protocols for the development of adaptive Web systems;however, there were several issues and shortcomings (e.g. low productivity, lack of verification mechanisms, etc.) in using the framework that inspired the development of a domain-specific language for the framework. This paper focuses on the proposal, design, and implementation of AWL, the Adaptive Web Language, which is used to develop adaptive Web systems within our framework. Not only does AWL address the existing issues in the framework, but it also offers mechanisms to increase software quality attributes, especially, reusability. An example application named PENS (a personalized e-News system) is explained and implemented in AWL. AWL has been designed based on the analysis of the adaptive Web domain, having taken into account the principles of reuse-based software engineering (product-lines), domain-specific languages, and aspect-oriented programming. Specially, a novel design decision, inspired by aspect-oriented programming paradigm, allows separate specification of presentation features in an application from its adaptation features. The AWL's design decisions and their benefits are explained. (c) 2007 Elsevier Inc. All rights reserved.

关键词： Adaptive web system Domain-specific programming language aspect-oriented programming

来源：评论

学校读者我要写书评

暂无评论

Modular and flexible causality control on the Web

引用

SCIENCE OF COMPUTER programming 2013年第9期78卷 1538-1558页

作者： Leger, Paul Tanter, Eric Douence, Remi Univ Chile PLEIAD Lab Dept Comp Sci Santiago Chile Univ Catolica Norte Antofagasta Chile INRIA ASCOLA Project Paris France

Ajax allows JavaScript programmers to create interactive, collaborative, and user-centered Web applications, known as Web 2.0 Applications. These Web applications behave as distributed systems because processors are user machines that are used to send and receive messages between one another. Unsurprisingly, these applications have to address the same causality issues present in distributed systems like the need (a) to control the causality between messages sent and responses received and (b) to react to distributed causal relations. JavaScript programmers overcome these issues using rudimentary and alternative techniques that largely ignore the distributed computing theory. In addition, these techniques are not very flexible and need to intrusively modify these Web applications. In this paper, we study how causality issues affect these applications and present WeCa, a practical library that allows for modular and flexible control over these causality issues in Web applications. In contrast to current proposals, WeCa is based on (stateful) aspects, message ordering strategies, and vector clocks. We illustrate WeCa in action with several practical examples from the realm of Web applications. In addition, we evaluate our proposal with a third-party application and its performance. (C) 2012 Elsevier B.V. All rights reserved.

关键词： WeCa aspectScript OTM JavaScript Web 2.0 Applications Distributed computing aspect-oriented programming

来源：评论

学校读者我要写书评

暂无评论

EFFECTS OF DRYING ON THE ANTIOXIDANT PROPERTIES OF HERBAL TEA FROM SELECTED VITEX SPECIES

引用

JOURNAL OF FOOD QUALITY 2012年第1期35卷 51-59页

作者： Chong, K. L. Lim, Y. Y. Monash Univ Sunway Campus Sch Sci Petaling Jaya 46150 Selangor Malaysia

This paper focuses on the effects of three thermal drying methods (microwave-, oven- and sun-drying) and one nonthermal drying method (freeze-drying) on the AOP of leaves of Vitex negundo and Vitex trifolia, which are consumed traditionally as herbal tea. Microwave-drying and freeze-drying were found to be able to maintain the AOP of the leaves but oven-drying and sun-drying resulted in deterioration of AOP. Microwave-drying has the advantage of short drying time and low water activity. AOP of Vitex herbal tea leaves that are microwave-dried and freeze-dried were not affected by storage up to 30 days.

关键词： aspect-oriented programming Herbal Teas DRYING TIME Drying solar drying Oven drying Vitex MICROWAVE DRYING Antioxidants Freeze drying

来源：评论

学校读者我要写书评

暂无评论

A pointcut-based coverage analysis approach for aspect-oriented programs

引用

INFORMATION SCIENCES 2011年第13期181卷 2721-2746页

作者： Lazzarini Lemos, Otavio Augusto Masiero, Paulo Cesar Fed Univ Sao Paulo UNIFESP Dept Sci & Technol BR-12231280 Sao Jose Dos Campos SP Brazil ICMC USP Sao Carlos Dept Comp Syst BR-13560970 Sao Carlos SP Brazil

aspect-oriented programming (AOP) is a promising technology that supports separation of crosscutting concerns (i.e., functionality that tends to be tangled with, and scattered through the rest of the system). In AOP, a method-like construct named advice is applied to join points in the system through a special construct named pointcut. This mechanism supports the modularization of crosscutting behavior;however, since the added interactions are not explicit in the source code, it is hard to ensure their correctness. To tackle this problem, this paper presents a rigorous coverage analysis approach to ensure exercising the logic of each advice - statements, branches, and def-use pairs - at each affected join point. To make this analysis possible, a structural model based on Java bytecode - called PointCut-based Del-Use Graph (PCDU) - is proposed, along with three integration testing criteria. Theoretical, empirical, and exploratory studies involving 12 aspect-oriented programs and several fault examples present evidence of the feasibility and effectiveness of the proposed approach. (C) 2010 Elsevier Inc. All rights reserved.

关键词： Software testing aspect-oriented programming Structural testing Integration testing Testing criteria Testing aspect-oriented programs Java aspectJ

来源：评论

学校读者我要写书评

暂无评论

Separation of concerns for distributed cross-platform context-aware user interfaces

引用

CLUSTER COMPUTING-THE JOURNAL OF NETWORKS SOFTWARE TOOLS AND APPLICATIONS 2017年第3期20卷 2355-2362页

作者： Cemus, Karel Klimes, Filip Kratochvil, Ondrej Cerny, Tomas Czech Tech Univ Dept Comp Sci CZ-12135 Prague Czech Republic Baylor Univ Dept Comp Sci Waco TX 76798 USA

Modern applications aim to provide attractive, efficient and adaptive user interfaces (UIs). The UI code developed in conventional design approaches brings numerous of difficulties exacerbating the development and maintenance efforts resulting in limited separation of concerns. The limitation comes from multiple cross-cuts of tangled concerns, e.g. data representation tangled with layout, security, business rules, localization, etc. This results in high information restatement, code duplication, and tedious maintenance. This paper introduces an approach that separates UI concerns bringing a single focal point for particular concern definitions improving readability and maintenance. The approach performs concern tangling at runtime through a weaver considering the contextual information influencing the result. This enables UI context-awareness, while significantly reduces the development and maintenance efforts. Furthermore, we apply this approach into a distributed environment, which allows us to construct the same UI on various platforms and devices involving a single concerns description streamed from the server.

关键词： aspect-oriented programming Enterprise information systems User interface Code generation

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：