检索结果-内蒙古大学图书馆

41st ACM Technical Symposium on Computer Science Education

作者： Cooper, Stephen Dann, Wanda Harrison, John Purdue Univ W Lafayette IN 47906 USA

ISBN: (纸本)9781605588858

To combat the decline of teaching computing courses in high schools, a plan was created to offer professional development (in both content and pedagogy) to high school computing teachers, and to have college faculty partner with those high school teachers to implement innovative curricula. This paper describes a pilot program that was run in support of an NSF Innovative Technology Experiences for Students and Teachers (ITEST) project that funded this plan of action. Professional development activities were offered during summer 2006 and the resulting curriculum was taught in high school the following academic year (2006-2007).

关键词： Object-oriented programming Alice K-12 program visualization

来源：评论

学校读者我要写书评

暂无评论

xDIVA: Automatic Animation between Debugging Break Points

xDIVA: Automatic Animation between Debugging Break Points

引用

5th ACM Symposium on Software visualization

作者： Cheng, Yung-Pin Tsai, Han-Yi Wang, Chih-Shun Hsueh, Chien-Hsin Natl Cent Univ Dept Comp Sci & Informat Engn Zhongli City 32001 Taoyuan County Taiwan

ISBN: (纸本)9781450304948

xDIVA, a 3D debugging visualization tool, provides a platform by which visualization metaphors are interactive, composable and de-coupled from data, i.e. a complicated visualization can be composed and assembled from basic ones, each of which is independently replaceable. Based on the progress of xDIVA, this tool demo paper describes an automatic animation system to generate interpolated frames between key frames, where key frames are snapshots of the 3D scene at breakpoints. This approach does not require users to add or write any animation code and is more feasible for practical use.

关键词： Debugging visualization Key-frame Animation Software visualization Composable visualization Metaphors program visualization

来源：评论

学校读者我要写书评

暂无评论

Evaluating the Utilization of Clustering Methods Connected with Multivariate visualizations 10

Evaluating the Utilization of Clustering Methods Connected w...

引用

Working conference on advanced visual interfaces

作者： Barbara Scheuner ETH Zurich Zurich Switzerland

ISBN: (纸本)9781450300766

visualization software in all fields becomes increasingly interactive with more and more elements to support users. Elements that help an observer to interpret given data sets by computing certain properties of the data to enrich their visualization we call "visual scouts". Many visualization programs implement visual scouts, but few is known about how users apply them in a real setting. In order to learn more about how users work with interactive visualization software we provide them with clustering methods (k-mean and hierarchical clustering), as one possibility to manipulate the data. Subsequently we evaluate how natural science students use these clustering methods as provided by an interactive comparative visualization software for high dimensional data (VisuLab~(?)). The students are introduced to four different visualization methods (figure 1) and given the possibility to apply four clustering methods to help them when interpreting two sample datasets (table 1 first two rows). This is part of a guided instruction after which they independently interpret two new but related real data sets (table 1 last two rows). In total they work for about six hours. During our evaluation we were able to record the clustering activities of ~250 students, by directly logging the user's activities within the software. Based on this data we computed how many times the data was clustered and with which visualization methods the results were visualized. In total we registered over 57'000 clustering activities of which 30% where

关键词： Clustering methods visualization methods visualization computer software attribute data computer programs Interactive program visualization

来源：评论

学校读者我要写书评

暂无评论

Visualizing the runtime behavior of embedded network systems: A toolkit for TinyOS

引用

SCIENCE OF COMPUTER programMING 2009年第7期74卷 446-469页

作者： Dalton, Andrew R. Wahba, Sally K. Dandamudi, Sravanthi Hallstrom, Jason O. Clemson Univ Sch Comp Clemson SC 29634 USA Western Carolina Univ Dept Math & Comp Sci Cullowhee NC 28723 USA

TinyOS is an effective platform for developing lightweight embedded network applications. But the platform's lean programming model and power-efficient operation come at a price: TinyOS applications are notoriously difficult to construct, debug, and maintain. The development difficulties stem largely from a programming model founded on events and deferred execution. In short, the model introduces non-determinism in the execution ordering of primitive actions - an issue exacerbated by the fact that embedded network systems are inherently distributed and reactive. The resulting set of possible execution sequences for a given system is typically large and can swamp developers' unaided ability to reason about program behavior. In this paper, we present a visualization toolkit for TinyOS 2.0 to aid in program comprehension. The goal is to assist developers in reasoning about the computation forest underlying a system under test and the particular branches chosen during each run. The toolkit supports comprehension activities involving both local and distributed runtime *** constituent components include (i) a full-featured static analysis and instrumentation library, (ii) a selection-based probe insertion system, (iii) a lightweight event recording service, (iv) a trace extraction and reconstruction tool, and (v) three visualization front-ends. We demonstrate the utility of the toolkit using both standard and custom system examples and present an analysis of the toolkit's resource usage and performance characteristics. (C) 2009 Elsevier B.V. All rights reserved.

关键词： Embedded network systems Sensor networks TinyOS NesC program visualization program comprehension Dynamic analysis Static analysis

来源：评论

学校读者我要写书评

暂无评论

Using Graphviz as a Low-cost Option to Facilitate the Understanding of Unix Process System Calls

引用

ELECTRONIC NOTES IN THEORETICAL COMPUTER SCIENCE 2009年第C期224卷 89-95页

作者： Riesco, Miguel Fondon, Marian D. Alvarez, Dairo Univ Oviedo Dept Comp Oviedo Spain

Unix system calls to create and execute processes are usually hard to understand for novice students. Using graphics for visualizing the behaviour of these system calls can be useful both for the teacher to explain and for the students to understand them. The problem here is that there is no software specifically addressed to generate graphical representations of these kind of programs, and to develop it would be costly. Instead of developing a complete system to visualize programs that use Unix system calls, we turned to a "cheaper" alternative solution. In this paper we show how we have used the open source graphviz tool to develop a simple way of generating graphical representations of the behaviour of these system calls, thus facilitating the comprehension of this important part in the learning of the Unix operating system.

关键词： Unix Operating System process system calls program visualization

来源：评论

学校读者我要写书评

暂无评论

Integrating Multiple Approaches for Interacting with Dynamic Data Structure visualizations

引用

ELECTRONIC NOTES IN THEORETICAL COMPUTER SCIENCE 2009年第C期224卷 141-149页

作者： Cross, James H., II Hendrix, T. Dean Barowski, Larry A. Auburn Univ Dept Comp Sci & Software Engn Auburn AL 36849 USA

jGRASP 1.8.7 has integrated three approaches for interacting with its dynamic viewers for data structures: the debugger, the workbench, and a new text-based interactions tab that allows individual Java statements to be executed and expressions to be evaluated. While each of these approaches is distinct and can be used independently of the others, they can also be used together to provide a complementary set of interactions with the dynamic viewers. In order to integrate these approaches, the jGRASP visual debugger, workbench, and viewers had to be significantly redesigned. During this process, the structure identifier, which provides for the identification and rendering of common data structures, was also greatly improved by examining the examples from 20 data structure textbooks. The overall result of this integration effort is a highly flexible approach for user interaction with the dynamic data structure visualizations generated by a robust structure identifier.

关键词： program visualization data structures jGRASP debugger workbench interactions

来源：评论

学校读者我要写书评

暂无评论

visualization of Procedural Abstraction

引用

ELECTRONIC NOTES IN THEORETICAL COMPUTER SCIENCE 2009年第C期224卷 27-39页

作者： Schaeckeler, Stefan Shang, Weijia Davis, Ruth Santa Clara Univ Dept Comp Engn Santa Clara CA 95053 USA

Visualizing impacts of an optimization pass helps to reason about, and to gain insight into, the inner workings of the optimization pass. In this paper, we visualize the impacts of two procedural abstraction passes. For this, we modified two procedural abstraction post pass optimizers to visualize for each the difference in machine code before and after optimization by drawing abstracted fragments in the original program. We then explain how the generated visualizations aid in better understanding the optimization passes.

关键词： visualization of computational processes program visualization program understanding Compiler understanding Code compaction Procedural abstraction Post pass optimization

来源：评论

学校读者我要写书评

暂无评论

Pedagogical Effectiveness of Engagement Levels - A Survey of Successful Experiences

引用

ELECTRONIC NOTES IN THEORETICAL COMPUTER SCIENCE 2009年第C期224卷 169-178页

作者： Urquiza-Fuentes, Jaime Angel Velazquez-Iturbide, J. Univ Rey Juan Carlos Dept Comp Sci Languages & Syst 1 Madrid Spain

In this paper we survey experiments with program and algorithm visualizations (PAVs) where learning improvements have been detected. We analyze these experiments based on the student's level of engagement with the visualizations. There are some features present in most of these, successful, experiments. Therefore they should be taken into account as important factors affecting pedagogical effectiveness of PAVs, these features are: narrative and textual contents, feedback to students' answers and a student centered approach when designing PAV construction kits.

关键词： program visualization algorithm visualization engagement levels educational evaluation survey

来源：评论

学校读者我要写书评

暂无评论

Rationale Behind the Design of the EduVisor Software visualization Component

引用

ELECTRONIC NOTES IN THEORETICAL COMPUTER SCIENCE 2009年第C期224卷 57-65页

作者： Moons, Jan De Backer, Carlos Univ Antwerp Fac Appl Econ Dept Management Informat Syst Antwerp Belgium

EduVisor software visualization component is a new pedagogical tool specifically developed to address some wide-spread problems in teaching object-oriented technology to novice programmers. The visualization tool is integrated in a world-class IDE, and shows the students the structure of their own creations at runtime. EduVisor is based on a solid grounding in literature and over 25 years of combined experience in teaching a CS1 course. With this component we have set the goal of helping our students progress faster through the most difficult initial stages of programming.

关键词： program visualization CS1 Java programming

来源：评论

学校读者我要写书评

暂无评论

Object-Oriented Design with Trace Modeler and Trace4J 09

Object-Oriented Design with Trace Modeler and Trace4J

引用

Annual Conference on Innovation and Technology in Computer Science Education

作者： Inghelbrecht, Yanic CVO IVV De Avondsch B-9000 Ghent Belgium

ISBN: (纸本)9781605583815

We present two tools that make students more productive during various object-oriented design activities. The first one, Trace Modeler, is a smart UML sequence diagram editor that helps students understand and apply responsibility-driven design. The second tool, Trace4J, is used to record and process the execution of a java program. Both tools are complementary. Students use Trace4J to produce focused sequence diagrams for (part of) a program's execution. Trace Modeler's support for huge diagrams lets them navigate and understand the large results in the initial stages of their processing experiments.

关键词： Tools software development documentation object-oriented design responsibility-driven design unified modeling language UML CASE tool sequence diagram trace program visualization

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：