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Proceedings. 1998 IEEE Symposium on Visual Languages (Cat. No.98TB100254)最新文献

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Visualization of compile time errors in a Java compatible visual language 在Java兼容的可视化语言中显示编译时错误
Proceedings. 1998 IEEE Symposium on Visual Languages (Cat. No.98TB100254) Pub Date : 1998-09-01 DOI: 10.1109/VL.1998.706130
Christopher C. Risley, Trevor J. Smedley
{"title":"Visualization of compile time errors in a Java compatible visual language","authors":"Christopher C. Risley, Trevor J. Smedley","doi":"10.1109/VL.1998.706130","DOIUrl":"https://doi.org/10.1109/VL.1998.706130","url":null,"abstract":"The Java programming language eases the creation of programs, as compared to textual languages such as C++, through use of features such as definite assignment, type safety, pointer restrictions and exception handling. However, errors resulting from the incorrect use of these features are hidden from the programmer when using a standard text based editor until they are detected at compile time. The programmer is forced to edit, compile, and re-edit the program to correct the errors detected during compilation, resulting in inefficiencies in the development process. A Java compatible visual syntax is briefly introduced. We then focus on environment features made possible by the visual presentation of the language which provide for the visualization of errors resulting from incorrect use of the following features: definite assignment, static type checking and exception handling.","PeriodicalId":185794,"journal":{"name":"Proceedings. 1998 IEEE Symposium on Visual Languages (Cat. No.98TB100254)","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1998-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127338247","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
The whiteboard environment: an electronic sketchpad for data structure design and algorithm description 白板环境:用于数据结构设计和算法描述的电子画板
Proceedings. 1998 IEEE Symposium on Visual Languages (Cat. No.98TB100254) Pub Date : 1998-09-01 DOI: 10.1109/VL.1998.706174
David R. Brown, B. V. Zanden
{"title":"The whiteboard environment: an electronic sketchpad for data structure design and algorithm description","authors":"David R. Brown, B. V. Zanden","doi":"10.1109/VL.1998.706174","DOIUrl":"https://doi.org/10.1109/VL.1998.706174","url":null,"abstract":"Most instructors describe algorithms and data structures to students using a physical blackboard or a whiteboard and chalk or markers. This paper describes two tools, Data Structure Designer and Whiteboard, that provide an instructor with the functionality of a whiteboard. The environment provided by these tools improve upon a whiteboard by providing interactivity and dynamic capabilities that whiteboards lack. Data Structure Designer provides a direct manipulation, graphical editor, similar to a widget-editor, that allows users to create attractive, customized data structure objects that very closely resemble the pictures of data structures that appear in textbooks. The Whiteboard environment provides a drawing area where data structures created in the Data Structure Designer can be interactively drawn, populated with example data, and then used in the demonstration of algorithms. Built-in semantics facilitate common operations. For example, assignment is accomplished by dragging and dropping a variable onto another variable. These two tools make the interactive design of data structures and demonstration of algorithms fast and easy.","PeriodicalId":185794,"journal":{"name":"Proceedings. 1998 IEEE Symposium on Visual Languages (Cat. No.98TB100254)","volume":"59 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1998-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126779951","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 7
VIQING: visual interactive querying VIQING:可视化交互式查询
Proceedings. 1998 IEEE Symposium on Visual Languages (Cat. No.98TB100254) Pub Date : 1998-09-01 DOI: 10.1109/VL.1998.706159
Christopher Olston, M. Stonebraker, A. Aiken, J. Hellerstein
{"title":"VIQING: visual interactive querying","authors":"Christopher Olston, M. Stonebraker, A. Aiken, J. Hellerstein","doi":"10.1109/VL.1998.706159","DOIUrl":"https://doi.org/10.1109/VL.1998.706159","url":null,"abstract":"The paper presents VIQING, an environment for expressing queries via direct manipulation of data visualizations. VIQING provides a simple graphical interface for connecting visualizations, and has the expressive power of the basic relational operators select, project and join. VIQING has been implemented in the Tioga DataSplash visualization system to provide a seamless integration of querying and browsing. The resulting system is unique in providing a unified visual interface for developing database applications, encompassing both querying and data visualization.","PeriodicalId":185794,"journal":{"name":"Proceedings. 1998 IEEE Symposium on Visual Languages (Cat. No.98TB100254)","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1998-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122531919","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 38
Case study: developing a rule-based language for mobile robots 案例研究:为移动机器人开发基于规则的语言
Proceedings. 1998 IEEE Symposium on Visual Languages (Cat. No.98TB100254) Pub Date : 1998-09-01 DOI: 10.1109/VL.1998.706164
Joseph J. Pfeiffer
{"title":"Case study: developing a rule-based language for mobile robots","authors":"Joseph J. Pfeiffer","doi":"10.1109/VL.1998.706164","DOIUrl":"https://doi.org/10.1109/VL.1998.706164","url":null,"abstract":"The 1997 Visual Programming Challenge inspired the development of Altaira, a rule-based language for small mobile robots. This paper describes the original design of the language, the modifications made to render the language implementable in the time available, and further changes which became necessary as a result of experience with the language. The design of a more general second-generation language is also introduced.","PeriodicalId":185794,"journal":{"name":"Proceedings. 1998 IEEE Symposium on Visual Languages (Cat. No.98TB100254)","volume":"73 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1998-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126493808","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
Error recovery in parsing relational languages 解析关系语言时的错误恢复
Proceedings. 1998 IEEE Symposium on Visual Languages (Cat. No.98TB100254) Pub Date : 1998-09-01 DOI: 10.1109/VL.1998.706128
A. Tuovinen
{"title":"Error recovery in parsing relational languages","authors":"A. Tuovinen","doi":"10.1109/VL.1998.706128","DOIUrl":"https://doi.org/10.1109/VL.1998.706128","url":null,"abstract":"The ability to report syntactic errors and to recover from them are basic requirements for any programming environment where programs are parsed before execution. Advanced error handling techniques are standard tools when processing textual programs, whereas in the context of visual languages the problem is factually unexplored. We develop an error recovery strategy for the parsing algorithm for atomic relational grammars originally developed by K. Wittenburg (1996). We present a definition of parser defined syntax errors for Wittenburg's parser by analyzing the possible parsing action failures and by showing how an explicit parse trace can be constructed to locate the errors. Then, we present two error recovery techniques, describe how they are integrated to the parses and discuss further directions.","PeriodicalId":185794,"journal":{"name":"Proceedings. 1998 IEEE Symposium on Visual Languages (Cat. No.98TB100254)","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1998-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131355036","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 5
Competitive learning of network diagram layout 网络图布局的竞争性学习
Proceedings. 1998 IEEE Symposium on Visual Languages (Cat. No.98TB100254) Pub Date : 1998-09-01 DOI: 10.1109/VL.1998.706134
Bernd Meyer
{"title":"Competitive learning of network diagram layout","authors":"Bernd Meyer","doi":"10.1109/VL.1998.706134","DOIUrl":"https://doi.org/10.1109/VL.1998.706134","url":null,"abstract":"For applications which generate diagrammatic representations, automatic layout techniques are a crucial component. Since graph-like network diagrams are among the most commonly used and most important types of diagrammatic displays, layout techniques for graphs have been extensively studied. However a problem with current graph layout methods which are capable of producing satisfactory results for a wide range of graphs is that they often put an extremely high demand on computational resources. The paper introduces a new layout method that consumes only little computational resources and does not need any heavy duty preprocessing. Unlike other declarative layout algorithms, not even the costly repeated evaluation of an objective function is required. The method presented is based on a competitive learning algorithm which is an extension of self organization strategies known from unsupervised neural networks.","PeriodicalId":185794,"journal":{"name":"Proceedings. 1998 IEEE Symposium on Visual Languages (Cat. No.98TB100254)","volume":"76 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1998-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134014128","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 14
Integrity constraints in the multi-paradigm language PROGRES 多范式语言progress中的完整性约束
Proceedings. 1998 IEEE Symposium on Visual Languages (Cat. No.98TB100254) Pub Date : 1998-09-01 DOI: 10.1109/VL.1998.706145
M. Münch, Andy Schürr, A. Winter
{"title":"Integrity constraints in the multi-paradigm language PROGRES","authors":"M. Münch, Andy Schürr, A. Winter","doi":"10.1109/VL.1998.706145","DOIUrl":"https://doi.org/10.1109/VL.1998.706145","url":null,"abstract":"PROGRES is a multi-paradigm visual programming or executable specification language, which has a well-defined static type concept. It supports programming with graph rewriting systems. An integrated type-checker is able to check the static semantics of a specification. This paper presents the integration of static integrity constraints to the language which allow to check a specification's integrity at run-time.","PeriodicalId":185794,"journal":{"name":"Proceedings. 1998 IEEE Symposium on Visual Languages (Cat. No.98TB100254)","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1998-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115771716","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 16
Visual semantics-or: what you see is what you compute 视觉语义——或者:你所看到的就是你所计算的
Proceedings. 1998 IEEE Symposium on Visual Languages (Cat. No.98TB100254) Pub Date : 1998-09-01 DOI: 10.1109/VL.1998.706151
Martin Erwig
{"title":"Visual semantics-or: what you see is what you compute","authors":"Martin Erwig","doi":"10.1109/VL.1998.706151","DOIUrl":"https://doi.org/10.1109/VL.1998.706151","url":null,"abstract":"We introduce visual graphs as an intermediate representation between concrete visual syntax and abstract graph syntax. In a visual graph some nodes are shown as geometric figures, and some edges are represented by geometric relationships between these figures. By carefully designing visual graphs and corresponding mappings to abstract syntax graphs, semantics definitions can, at least partially, employ a visual notation while still based on abstract syntax. Visual semantics thus offers the \"best of both worlds\" by integrating abstract syntax and visual notation. These concepts can also be used to give visual semantics for traditional textual formalisms. As an example we provide a visual definition of Turing machines.","PeriodicalId":185794,"journal":{"name":"Proceedings. 1998 IEEE Symposium on Visual Languages (Cat. No.98TB100254)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1998-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125077008","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
SoftBean Composer: a visual environment for component assembly SoftBean Composer:用于组件组装的可视化环境
Proceedings. 1998 IEEE Symposium on Visual Languages (Cat. No.98TB100254) Pub Date : 1998-09-01 DOI: 10.1109/VL.1998.706149
Guijun Wang
{"title":"SoftBean Composer: a visual environment for component assembly","authors":"Guijun Wang","doi":"10.1109/VL.1998.706149","DOIUrl":"https://doi.org/10.1109/VL.1998.706149","url":null,"abstract":"In this paper, we describe a visual environment, SoftBean Composer, for component assembly. Key ideas of this visual environment include explicit representation of component boundary elements based on a component model and explicit separation of core component functionality from inter-component communication mechanisms and strategies. Component boundary elements are abstracted into Ports dealing with communications between component internal parts and the outside world. Inter-component communications are abstracted into Links dealing with communications in local or distributed fashions. Component boundary information is discovered using introspection at component assembly time and assistance is provided to users in component assembly.","PeriodicalId":185794,"journal":{"name":"Proceedings. 1998 IEEE Symposium on Visual Languages (Cat. No.98TB100254)","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1998-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130062199","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
On the specification of dynamic visual languages 论动态视觉语言的规范
Proceedings. 1998 IEEE Symposium on Visual Languages (Cat. No.98TB100254) Pub Date : 1998-09-01 DOI: 10.1109/VL.1998.706129
Paolo Bottoni, Shi-Kuo Chang, M. Costabile, S. Levialdi, P. Mussio
{"title":"On the specification of dynamic visual languages","authors":"Paolo Bottoni, Shi-Kuo Chang, M. Costabile, S. Levialdi, P. Mussio","doi":"10.1109/VL.1998.706129","DOIUrl":"https://doi.org/10.1109/VL.1998.706129","url":null,"abstract":"We study the dynamics of visual sentences produced during interaction between user and computer. Our approach states that the messages exchanged between the user and the computer not only should make explicit the current state of the interaction, but also the possible paths that it may take. We introduce the notion of \"dynamic visual language\" as a set of visual sentences characterised by the presence of a common frame which conveys the context in which users are operating. We present a formal model of derivation of dynamic visual sentences, in which each visual sentence specifies the possible actions which can be performed on it and the possible transformations it can go through. The concepts are illustrated by examples in visual navigation and visual querying.","PeriodicalId":185794,"journal":{"name":"Proceedings. 1998 IEEE Symposium on Visual Languages (Cat. No.98TB100254)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1998-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128800128","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 19
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