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7th International Conference on Computer Science and Information Technology (CSIT)

作者： Akour, Mohammed Falah, Bouchaib Yarmouk Univ Comp Informat Syst Dept Irbid Jordan Al Akhawayn Univ Sch Sci & Engn Ifrane Morocco

ISBN: (纸本)9781467389136

Software maintainability is one of the most factors that used to ensure software quality. It targets the structure of the software rather than its functionality. Hence, code readability is highlighted whenever maintainability is discussed. There is a huge difference between an organized code and a messy code, or between easy to read code and a difficult to read code. This difference can be very subjective but many efforts have been put together in order to formalize it. Therefore, the result was a set of readability factors that have a direct or indirect impact on software readability. These factors measure to which extent readers can understand the text of the software code. Many metrics were developed to generalize the readability score across a set of pieces of code. Unfortunately, not all proposed metrics take into account the possibility of having variable readability factors. This paper tries to investigate to which extent the readability factors considering different application domains. Since readability is very subjective, it will be interesting to see whether it is useful to have specialized readability models that measure this attribute. This also implies looking into the impact of these readability models on measuring software quality.

关键词： software readability application domain readability models programming paradigms

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JavaContexts: A Java based programming language for the development of highly reusable software applications

JavaContexts: A Java based programming language for the deve...

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International Conference on Software Engineering Research and Practice (SERP 05)

作者： Wieczerzycki, W Poznan Univ Econ Dept Management Poznan Poland

ISBN: (纸本)1932415513

In the paper a new approach for modeling Java program variants (versions) is proposed, which is focused on increasing the level of software reuse, rather than on enriching data model. The proposed language called JavaContexts provides various mechanisms for object (class) persistency, thus it needs an underlying database system for reliable and efficient object storage and access. In the approach proposed, a program (database application) is composed of a program body and a set of logically independent program contexts. The program body contains global classes. Each program context contains exactly one variant of every class not belonging to the program badly called a context class. Variants of the same class belonging to different contexts need not be different. During the program execution only one context is active. It may be, however, changed dynamically at the program run-time. Thus, at a particular moment of time the program is viewed as a sum of the program body and exactly one program context. JavaContexts preserves Java homogeneity, since all new concepts proposed in this paper are modeled as classes and objects.

关键词： programming paradigms software reusability object-oriented technologies versioning

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Educational Influences of Choice of First programming Language

Educational Influences of Choice of First Programming Langua...

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International Conference on Numerical Analysis and Applied Mathematics (ICNAAM)

作者： Ivanovic, Mirjana Budimac, Zoran Paunic, Dura Univ Novi Sad Fac Sci Dept Math & Informat Novi Sad 21000 Serbia

ISBN: (纸本)9780735412873

The study for degree of Bachelor in Computer science at our Department lasts four years and besides other subjects, offers several interconnected core courses in programming: Introduction to programming, Data structures and algorithms 1 and 2, Operating systems and Compiler construction. The intention in these courses is to put emphasizes on abstract structures and not to insist on particular realization in specific programming language or to use different languages in different courses. In order to avoid teaching many languages and various environments, it was decided to choose one language that is easy to teach and good for development of correct programming style. Chosen language has to be flexible enough to support teaching the different principles, methods and techniques.

关键词： Teaching programming programming paradigms First programming language

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A communication architecture and programming abstractions for real-time embedded sensor networks 23

A communication architecture and programming abstractions fo...

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23rd International Conference on Distributed Computing Systems Workshops

作者： Abdelzaher, T Stankovic, J Son, S Blum, B He, T Wood, A Lu, CY Univ Virginia Dept Comp Sci Charlottesville VA 22904 USA

ISBN: (纸本)0769519210

Data distribution in embedded real-time sensor networks requires new protocols and programming environments that achieve time-sensitive message delivery and provide useful abstractions to the application programmer Attainment of these goals requires changes to multiple layers of the communication protocol stack. In this paper we review a protocol suite developed by the authors for data communication in embedded sensor networks. It takes into account time constraints and exports attribute-based connections that are tightly integrated with properties of the monitored environment. A programming language is described that allows external physical objects to be represented as first class abstractions in the computing system. The language facilitates writing monitoring applications. The system was implemented on a prototypical sensor network based on MICA motes.

关键词： sensor networks programming paradigms tracking QoS distributed systems

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Notational programming for Notebook Environments: A Case Study with Quantum Circuits 22

Notational Programming for Notebook Environments: A Case Stu...

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35th Annual ACM Symposium on User Interface Software and Technology (UIST)

作者： Arawjo, Ian DeArmas, Anthony J. Roberts, Michael Basu, Shrutarshi Parikh, Tapan Cornell Univ Ithaca NY 14853 USA Harvard Univ Cambridge MA USA Cornell Tech New York NY USA

ISBN: (纸本)9781450393201

We articulate a vision for computer programming that includes pen-based computing, a paradigm we term notational programming. Notational programming blurs contexts: certain typewritten variables can be referenced in handwritten notation and vice-versa. To illustrate this paradigm, we developed an extension, Notate, to computational notebooks which allows users to open drawing canvases within lines of code. As a case study, we explore quantum programming and designed a notation, Qaw, that extends quantum circuit notation with abstraction features, such as variable-sized wire bundles and recursion. Results from a usability study with novices suggest that users find our core interaction of implicit cross-context references intuitive, but suggests further improvements to debugging infrastructure, interface design, and recognition rates. Throughout, we discuss questions raised by the notational paradigm, including a shift from 'recognition' of notations to 'reconfiguration' of practices and values around programming, and from 'sketching' to writing and drawing, or what we call 'notating.'

关键词： programming paradigms pen-based interfaces computational notebooks quantum computing

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Good ideas, through the looking glass

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COMPUTER 2006年第1期39卷 28-+页

作者： Wirth, N ETH Zurich Switzerland

Computing's history has been driven by many good and original ideas, but a few turned out to be less brilliant than they first appeared. Much can be learned from analyzing not only bad ideas and past mistakes, but... 详细信息

关键词： computer science history computing history retrospective analysis computer architectures hardware technology programming languages programming paradigms

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Concurrency and Message Passing in Erlang

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COMPUTING IN SCIENCE & ENGINEERING 2012年第6期14卷 24-34页

作者： Vinoski, Steve Basho Technologies

Developers use the open source Erlang programming language in domains such as telecommunications, database systems, and the Web due to its superior support for concurrency and reliability. Erlang applications comprise numerous processes-lightweight user-space threads-that communicate via message passing. This article focuses on Erlang's concurrency support and details an example 1D Poisson solver program.

关键词： Welding Concurrent Computing programming Telecommunications Reliability Syntactics Pattern Matching Scientific Computing Applicative Functional programming Concurrent programming programming paradigms Concurrent Languages Distributed Languages Parallel Languages

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Wise Computing: Toward Endowing System Development with Proactive Wisdom

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COMPUTER 2018年第2期51卷 14-26页

作者： Harel, David Katz, Guy Marelly, Rami Marron, Assaf Weizmann Inst Sci Rehovot Israel Stanford Univ Stanford CA 94305 USA Weizmann Inst Sci Comp Sci & Appl Math Dept Rehovot Israel

A broad, long-term research project is described that will lead to the computer becoming an equal member of the system-development team, continuously making proactive contributions, akin to those expected from an experienced and knowledgeable customer or user, a conscientious QA engineer, a strict regulatory auditor, an engineering team leader, or the organization's CTO.

关键词： Internet Team Working Wise Computing Proactive Wisdom Long Term Research Project System Development Team Proactive Contributions Knowledgeable Customer Conscientious QA Engineer Strict Regulatory Auditor Engineering Team Leader Endowing System Development Organization CTO Software Engineering Reliability Engineering Project Management Performance Evaluation Maintenance Engineering programming Software Engineering Software Construction programming paradigms programming Environments Construction Tools

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Cloud Technologies for Bioinformatics Applications

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IEEE TRANSACTIONS ON PARALLEL AND DISTRIBUTED SYSTEMS 2011年第6期22卷 998-1011页

作者： Ekanayake, Jaliya Gunarathne, Thilina Qiu, Judy Indiana Univ Sch Informat & Comp Bloomington IN 47408 USA Indiana Univ Pervas Technol Inst Bloomington IN 47408 USA

Executing large number of independent jobs or jobs comprising of large number of tasks that perform minimal intertask communication is a common requirement in many domains. Various technologies ranging from classic job schedulers to the latest cloud technologies such as MapReduce can be used to execute these "many-tasks" in parallel. In this paper, we present our experience in applying two cloud technologies Apache Hadoop and Microsoft DryadLINQ to two bioinformatics applications with the above characteristics. The applications are a pairwise Alu sequence alignment application and an Expressed Sequence Tag (EST) sequence assembly program. First, we compare the performance of these cloud technologies using the above applications and also compare them with traditional MPI implementation in one application. Next, we analyze the effect of inhomogeneous data on the scheduling mechanisms of the cloud technologies. Finally, we present a comparison of performance of the cloud technologies under virtual and nonvirtual hardware platforms.

关键词： Distributed programming parallel systems performance programming paradigms

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Service Composition Issues in Pervasive Computing

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IEEE PERVASIVE COMPUTING 2010年第1期9卷 62-70页

作者： Bronsted, Jeppe Hansen, Klaus Marius Ingstrup, Mads Aarhus Univ Dept Comp Sci DK-8000 Aarhus C Denmark Univ Iceland IS-101 Reykjavik Iceland

Providing new services by combining existing ones—or service composition—is an idea pervading pervasive computing. Pervasive computing technologies seek to concurrently exhibit context awareness, manage contingencies, leverage device heterogeneity, and empower users. These four goals prompt service-composition-mechanism design requirements that are unique to pervasive computing. This article catalogs service composition mechanisms and describes their variation points, which indicate how well the resulting compositions meet the four goals.

关键词： Personal digital assistants Runtime Servers Web services Context Context-aware services programming paradigms service composition context awareness user composition heterogeneous system contingency management survey design concepts organization and design operating systems reusable software configuration management

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