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###### Praktikumsthema -											   #########
###### Extending the VRESCo Query Language to support Skyline Queries  #########
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Skyline queries[1] are a relatively new concept from the database world: instead
of returning all results to a given query only a presumably 'most interesting'
subset is considered. This subset is defined as the pareto-optimal front in the
result space, according to a number of given comparison attributes. Put simply,
all results which are worse in all comparison attributes than at least one
other result are ignored. This simple approach can reduce the number of results
returned dramatically in certain settings.

As part of this 'Praktikum' such a Skyline operator should
be implemented in our SOA infrastructure VRESCo[2]. VRESCo already implements a
specific query language, which has to be extended in this work. 

The practical implementation has to be done in C#. However, generally
students with decent Java skills have no problems picking up the necessary C#
knowledge while doing the project.

If you are interested in this topic please contact me at:
Philipp Leitner (leitner@infosys.tuwien.ac.at)

Topics/Tools:
- C# / .NET
- NHibernate
- VRESCo (most importantly the VRESCo Query Language)
- SQL

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[1] http://www.dbis.ethz.ch/research/publications/38.pdf
[2] http://www.infosys.tuwien.ac.at/prototype/VRESCo/