Christof Koch

Computability of Koch Curve and Koch Island

Koch curve is known as a typical self-similar set on Euclidean plane. Koch island is a closed set surrounded by three copies of Koch curve. We investigate them from the viewpoint of computability. In this paper, we define computability of a curve and that of a closed set as an application of classical computable analisys to Euclidean spaces and show that Koch curve is a computable curve and bot...

Robert Koch

It Is Now Being Explored through the Visual System— Requiring a Close Collaboration among Psychologists, Neuroscientists and Theorists by Francis Crick and Christof Koch

Superior Koch Curve

In this paper, the author presents the design of Superior Koch Curve with different scaling factor, which has wide applications in Fractals Graphics. The proposed curve has been designed using the technique of superior iteration. The Koch curve is the limiting curve obtained by applying the self similar divisions to infinite number of times but in Superior Koch Curve scaling factor is based on ...

The University of Amsterdam at CLEF 2001 Christof

This paper describes the official runs of our team for CLEF-2001. We took part in the monolingual task, for Dutch, German, and Italian. The focus of our experiments was on the effects of morphological analyses such as stemming and compound splitting on retrieval effectiveness. Confirming earlier reports on retrieval in compound splitting languages such as Dutch and German, we found improvements...