Knoocks - A Visualization Approach for OWL Lite Ontologies

Kriglstein, Simone; Wallner, Günter

doi:10.1109/cisis.2010.55

Cited by 18 publications

(10 citation statements)

References 15 publications

(21 reference statements)

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“…Knoocks (Kriglstein & Wallner, 2010) is a standalone ontology visualizer that uses Microsoft .NET. Although its visualization method seems very interesting, we were unable to run it on our configuration.…”

Section: Knoocksmentioning

confidence: 99%

Ontology visualization methods and tools: a survey of the state of the art

Dudáš

Lohmann²,

Svátek

et al. 2018

The Knowledge Engineering Review

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Various ontology visualization tools using different visualization methods exist and new ones are being developed every year. The goal of this paper is to follow up on previous surveys with an updated classification of ontology visualization methods and a comprehensive survey of available tools. The tools are analyzed for the used visualization methods, interaction techniques and supported ontology constructs. It shows that most of the tools apply two-dimensional node-link visualizations with a focus on class hierarchies. Color and shape are used with little variation, support for constructs introduced with version 2 of the OWL Web Ontology Language is limited, and it often remains vague what tasks and use cases are supported by the visualizations. Major challenges are the limited maturity and usability of many of the tools as well as providing an overview of large ontologies while also showing details on demand. We see a high demand for a universal ontology visualization framework implementing a core set of visual and interactive features that can be extended and customized to respective use cases.

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Section: Knoocksmentioning

confidence: 99%

Ontology visualization methods and tools: a survey of the state of the art

Dudáš

Lohmann²,

Svátek

et al. 2018

The Knowledge Engineering Review

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“…CropCircles [28] on the other hand, uses geometric containment as an alternative to classing node-link displays sacrificing space to make it easier for users to understand the topological relations in an ontology. Hybrid solutions, like Jambalaya [23] and Knoocks [12], combine containment-based and node-link approaches by providing alternative integrated views of the two paradigms, whereas other approaches, like [7], are based on the notion of distorting the view of the presented graph to combine context and focus. The node on focus is usually the central one and the rest of the nodes are presented around it, reduced in size until they reach a point that they are no longer visible.…”

Section: Related Workmentioning

confidence: 99%

Exploring RDFS KBs Using Summaries

Troullinou

Kondylakis

Stefanidis

et al. 2018

Lecture Notes in Computer Science

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Ontology summarization aspires to produce an abridged version of the original data source highlighting its most important concepts. However, in an ideal scenario, the user should not be limited only to static summaries. Starting from the summary, s/he should be able to further explore the data source requesting more detailed information for a particular part of it. In this paper, we present a new approach enabling the dynamic exploration of summaries through two novel operations zoom and extend. Extend focuses on a specific subgraph of the initial summary, whereas zoom on the whole graph, both providing granular information access to the end-user. We show that calculating these operators is NPcomplete and provide approximations for their calculation. Then, we show that using extend, we can answer more queries focusing on specific nodes, whereas using global zoom, we can answer overall more queries. Finally, we show that the algorithms employed can efficiently approximate both operators.

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“…CropCircles does not provide a search functionality, is more designed for an overview of a formal ontology. A space-filling approach for visualizing light-weight ontological hierarchies was brought by Kriglstein and colleagues with the Knoocks (Knowledge blocks) visualization [KMP08,KW10]. In their first version [KMP08] the main view of their application that visualizes classes as rectangles was introduced.…”

Section: Hierarchical Semantics Visualizationsmentioning

confidence: 99%

Adaptive Semantics Visualization

Nazemi¹

2016

Studies in Computational Intelligence

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Human access to the increasing amount of information and data plays an essential role for the professional level and also for everyday life. While information visualization has developed new and remarkable ways for visualizing data and enabling the exploration process, adaptive systems focus on users' behavior to tailor information for supporting the information acquisition process. Recent research on adaptive visualization shows promising ways of synthesizing these two complementary approaches and make use of the surpluses of both disciplines. The emerged methods and systems aim to increase the performance, acceptance, and user experience of graphical data representations for a broad range of users. Although the evaluation results of the recently proposed systems are promising, some important aspects of information visualization are not considered in the adaptation process. The visual adaptation is commonly limited to change either visual parameters or replace visualizations entirely. Further, no existing approach adapts the visualization based on data and user characteristics. Other limitations of existing approaches include the fact that the visualizations require training by experts in the field. VII VIIIFinally, I thank my loved ones -my wife Mariam, my son Kian, my brothers and parents for their unlimited support, love, and patience.

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Knoocks - A Visualization Approach for OWL Lite Ontologies

Cited by 18 publications

References 15 publications

Ontology visualization methods and tools: a survey of the state of the art

Ontology visualization methods and tools: a survey of the state of the art

Exploring RDFS KBs Using Summaries

Adaptive Semantics Visualization

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