Abstract Syntax and Semantics of Visual Languages

Erwig, Martin

doi:10.1006/jvlc.1998.0098

Cited by 40 publications

(19 citation statements)

References 21 publications

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“…XML-GL [7] is a language proposal that is based on exactly this idea. However, trees represent rather an abstract visual syntax of XML documents, which is well-suited for formal language manipulations [17] but not necessarily for enduser query languages. From this point of view, XML-GL is more like general-purpose visual programming languages that are based on trees and graphs, such as Progress [41] or Grrr [40].…”

Section: Visual Languagesmentioning

confidence: 99%

Xing: a visual XML query language

Erwig

2003

Journal of Visual Languages & Computing

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We present a visual language for querying and transforming XML data. The language is based on a visual document metaphor and the notion of document patterns and rules. It combines a dynamic form-based interface for defining queries and transformation rules with powerful pattern matching capabilities and offers thus a highly expressive visual language. The design of the visual language is specifically targeted at end users.

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Section: Visual Languagesmentioning

confidence: 99%

Xing: a visual XML query language

Erwig

2003

Journal of Visual Languages & Computing

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“…In contrast, we employ a Branch construct that allows the integration of different story lines into one explanation, which means that intervention can be represented explicitly. 6 This difference might be important when we consider exploration operations for explanations since the explicit representation supports the exploration of intervention, which could be a huge advantage given the importance that interventions in causal graphs have for explanations.…”

Section: Related Workmentioning

confidence: 99%

“…In future work, we will define the formal syntax and semantics of story graphs [6] and explore more of their potential usages, in particular, possible interactions for story graphs that support explanation exploration. We will also extend story graphs to a visual programming language for explanations.…”

Section: Visual Explanations Of Probabilistic Reasoningmentioning

confidence: 99%

A DSL for Explaining Probabilistic Reasoning

Erwig

Walkingshaw

2009

Domain-Specific Languages

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Abstract. We propose a new focus in language design where languages provide constructs that not only describe the computation of results, but also produce explanations of how and why those results were obtained. We posit that if users are to understand computations produced by a language, that language should provide explanations to the user.As an example of such an explanation-oriented language we present a domain-specific language for explaining probabilistic reasoning, a domain that is not well understood by non-experts. We show the design of the DSL in several steps. Based on a story-telling metaphor of explanations, we identify generic constructs for building stories out of events, and obtaining explanations by applying stories to specific examples. These generic constructs are then adapted to the particular explanation domain of probabilistic reasoning. Finally, we develop a visual notation for explaining probabilistic reasoning.

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“…Thus, the concrete syntax carries with it all of the geometric properties of the diagram. Since this early work, new approaches to defining the syntax of visual languages have been proposed and it is now common to have both a concrete and an abstract syntax, see [Baar 2006b;Erwig 1998]. The abstract syntax, sometimes called the type syntax, can be thought of as a description of the diagram which captures the semantically important features.…”

Section: Formalization Of Visual Languagesmentioning

confidence: 99%

Combining Sketching and Traditional Diagram Editing Tools

Plimmer

Delaney

Rodgers

2015

ACM Trans. Intell. Syst. Technol.

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The least cognitively demanding way to create a diagram is to draw it with a pen. Yet there is also a need for more formal visualizations, that is diagrams created using both traditional keyboard and mouse interaction. Our objective is to allow the creation of diagrams using traditional and stylus-based input. Having two diagram creation interfaces requires that changes to a diagram should be automatically rendered in the other visualization. Because sketches are imprecise, there is always the possibility that conversion between visualizations results in a lack of syntactic consistency between the two visualizations. We propose methods for converting diagrams between forms, checking them for equivalence and rectifying inconsistencies. As a result of our theoretical contributions, we present an intelligent software system allowing users to create and edit diagrams in sketch or formal mode. Our proof of concept tool supports diagrams with connected and spatial syntactic elements. Two user studies show that this approach is viable and participants found the software easy to use. We conclude that supporting such diagram creation is now possible in practice.

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Abstract Syntax and Semantics of Visual Languages

Abstract: The

Cited by 40 publications

References 21 publications

Xing: a visual XML query language

Xing: a visual XML query language

A DSL for Explaining Probabilistic Reasoning

Combining Sketching and Traditional Diagram Editing Tools

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