Topics for Student Theses

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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.

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= Bachelor Topics =

== Graph Layout ==

* (% style="line-height: 1.4285715;" %)**Implement Greedy Switch Heuristic for Crossing Minimization**(%%)

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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.

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* **{{jira columns="key,summary,type,created,updated,due,assignee,reporter,priority,status,resolution" id="KIELER JIRA" serverId="2851bd34-0bf1-3f02-ab12-7d77ccab0fae" key="KIPRA-891"}}KIPRA-891{{/jira}}Layering Algorithms**

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Implement an alternative algorithm for the layer assignment problem used in the layer-based approach to graph layout.

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* **Integrate KIML with JGraph**

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Provide automatic layout through KIML for the JGraph diagram library and develop a simple JGraph-based graph editor to test the integration with.

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* **{{jira showSummary="true" columns="key,summary,type,created,updated,due,assignee,reporter,priority,status,resolution" id="KIELER JIRA" serverId="2851bd34-0bf1-3f02-ab12-7d77ccab0fae" key="KIPRA-1214"}}KIPRA-1214{{/jira}}Improved Edge Label Placement**

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Our layout algorithm already supports the placement of edge labels. However, there's still room for improvement...

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== Modeling Pragmatics ==

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* **Control Flow Graph Exploration / Visualization**

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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.

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* **OMG DD Format**

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Explore the mapping of [[KGraph>>doc:KGraph Meta Model]] / [[KRendering>>doc:The KRendering Notation Model]] to the [[Diagram Definition>>url:http://www.omg.org/spec/DD/||shape="rect"]] format of the OMG.

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== Semantics and Synchronous Languages ==

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* **Validation Manager for Models**

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Develop an integrated, flexible and generic syntactic validation framework for models (e.g. Esterel or SyncCharts).

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* **Esterel / SyncCharts Validation**

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Automate the validation for a (generic) SyncCharts simulator employing the Esterel simulator and the Esterel to SyncCharts transformation.

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* **Transformation from SyncCharts to Esterel** [possibly also Master Topic]

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Develop a transformation in Xtend2 to generate Esterel code for SyncCharts.

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== Miscellaneous Topics ==

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* **Developing an Info Screen**

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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.

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= (% style="color: rgb(0,0,0);" %)Master Topics(%%) =

== Graph Layout ==

* **Layering Algorithms**

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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.

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* **Node Placement**

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Develop a new node placement algorithm that finds a good balance between keeping edges straight and keeping the drawing from getting too big.

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* (% style="line-height: 1.4285715;" %)**Compound Graph Layout**(%%)

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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.

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* **Force Based Drawing with Port Constraints**

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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>>url:http://www.adaptagrams.org/||shape="rect"]] on the model library of [[Ptolemy>>url:http://ptolemy.eecs.berkeley.edu/||shape="rect"]].

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* **Combining Forces and Layers

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**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.

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== Modeling Pragmatics ==

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* **Diagram Description Language**

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

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== Semantics and Synchronous Languages ==

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