Normalized Lempel-Ziv complexity, which measures the generation rate of new patterns along a digital sequence, is closely related to such important source properties as entropy and compression ratio,â€¦ (More)

Up to now biometric methods have been used in cryptography for authentication purposes. In this paper we propose to use biological data for generating sequences of random bits. We point out that thisâ€¦ (More)

We review several applications of Lempelâ€“Ziv complexity to the characterization of neural responses. In particular, Lempelâ€“Ziv complexity allows to estimate the entropy of binned spike trains in anâ€¦ (More)

In a previous paper (Proceedings of the World Congress on Neuroinformatics (2001)) the authors applied the so-called Lempel-Ziv complexity to study neural discharges (spike trains) from anâ€¦ (More)

Pattern matching is a simple method for studying the properties of information sources based on individual sequences (Wyner et al 1998 IEEE Trans. Inf. Theory 44 2045-56). In particular, theâ€¦ (More)

An important question in neural information processing is how neurons cooperate to transmit information. To study this question, we resort to the concept of redundancy in the information transmittedâ€¦ (More)