Information astronomy on Internet: theory and practice

Abstract

Information searching on Internet is restricted by three facts: inadequate indexing, unclear search models and the misunderstanding called navigation. For true three- and four-dimensional navigation semantical universums should be prepared first which represent in space the knowledge of subject areas. The principles of this content mapping are to be found in the dynamic library idea of Gerard Salton. This recursive model can describe any continuously changing classification system in its evolution, and it is also suitable to handle electronic documents. Visual representation of information is also possible by substituting cluster analysis in the original model by main component analysis. The result of the substitution is stable distributions of documents and keywords reminding one to astronomical constellations, leading toward a still nonexistent information astronomy.