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Here's a selection of possible bachelor and master topics. If you're interested in one of them, don't hesitate to contact us! We'll sit down, have tea, and talk about what we could do together.

Bachelor Topics

Graph Layout

  • Implement Greedy Switch Heuristic for Crossing Minimization
    The order of nodes in a layer determines the number of crossings and is computed during the crossing minimization step. The results can usually be further improved by switching the order of nodes around, which we currently lack proper algorithms for.  KIPRA-891 - Getting issue details... STATUS
  • Layering Algorithms
    Implement an alternative algorithm for the layer assignment problem used in the layer-based approach to graph layout.
  • Integrate KIML with JGraph
    Provide automatic layout through KIML for the JGraph diagram library and develop a simple JGraph-based graph editor to test the integration with. KIPRA-1214 - Getting issue details... STATUS
  • Improved Edge Label Placement
    Our layout algorithm already supports the placement of edge labels. However, there's still room for improvement...
  • Implement a KlayJS adapter for D3.js
    The D3.js library is a well-known and widely-used Javascript library for SVG-based visualizations and already comes with force-based graph layout algorithms. Implement an adapter that allows to use D3 with KlayJS.

Modeling Pragmatics

  • Control Flow Graph Exploration / Visualization
    Use pragmatics concepts (automatic layout, focus & context) for exploring/visualizing control flow graphs and specific paths, eg. as computed by OTAWA WCET analysis tool, eg. using Klighd.
  • OMG DD Format
    Explore the mapping of KGraph / KRendering to the Diagram Definition format of the OMG.

Semantics and Synchronous Languages

  • Validation Manager for Models
    Develop an integrated, flexible and generic syntactic validation framework for models (e.g. Esterel or SyncCharts).
  • Esterel / SyncCharts Validation
    Automate the validation for a (generic) SyncCharts simulator employing the Esterel simulator and the Esterel to SyncCharts transformation.
  • Transformation from SyncCharts to Esterel [possibly also Master Topic]
    Develop a transformation in Xtend2 to generate Esterel code for SyncCharts.

Miscellaneous Topics

  • Developing an Info Screen
    Info screens are screens that present data in ways that can be easily understood. This includes static data (project description graphics, members of a team, ...) as well as dynamically aggregated data (bug statistics, automatic build overviews, ...). This topic is about developing such an info screen for our group and making it easily configurable.

Master Topics

Graph Layout

  • Layering Algorithms
    Develop an alternative algorithm for the layer assignment problem used in the layer-based approach to graph layout. The algorithm shall be extended to consider the number of edge crossings and an optimal aspect ratio.
  • Node Placement
    Develop a new node placement algorithm that finds a good balance between keeping edges straight and keeping the drawing from getting too big.
  • Compound Graph Layout
    Design and implement new concepts for computing layer-based layouts of compound graphs. The main focus shall be on maintainability: ensuring that the implementation can be kept working over the years.
  • Force Based Drawing with Port Constraints
    Develop methods for integrating port constraints in force-based drawing approaches. The resulting node placement shall be evaluated using an edge router such as libavoid on the model library of Ptolemy.
  • Combining Forces and Layers
    Design and implement a layout algorithm that combines the force-based and the layer-based approaches. The first three phases of the layer-based approach shall be replaced by a node distribution computed with a force-based approach.

Modeling Pragmatics

  • Diagram Description Language
    Developing the concepts and implementation of a diagram description language based on Klighd, with SyncCharts as application example.

Semantics and Synchronous Languages

  • FPGA Statecharts
    Development of a Statecharts editor, based on .NET, WPF, MS Silverlight. Synthesis onto FPGAs with a data-flow-based intermediate format.
  • [Quartz]
    Integrate the synchronous Quartz language into KIELER for validation purposes and teaching.
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