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= SimPack =

The SimPack project provides a number of measures on different data models. It is published by the IFI (Institut für Informatik) of Zürich, Switzerland. The original project site can be found here:

  [http://www.ifi.unizh.ch/ddis/simpack.html http://www.ifi.unizh.ch/ddis/simpack.html]



== Accessors ==

The SimPack data model differs from the ontology based model of the PhaseLibs in the following way: A SimPack measure instance can only measure the distance of two single entities. A certain aspect of these entities is then accessed by providing appropriate Accessor instances upon initialisation. Thus, a SimPack measure cannot be reused for other entities nor other aspects of the same entities -  a new measure would have to be instantiated.


There are 4 different types of accessors:
 1. strings or sequences of strings
 2. feature vectors
 3. graphs
 4. information theory based