No finite sample is sufficient to determine the density, and therefore the entropy, of a signal directly. Some assumption about either the functional form of the density or about its smoothness is necessary. Both amount to a prior over the space of possible density functions. By far the most common approach is to assume that the density has a parametric form. By contrast we derive a differentia...

AROUND THE WORLD Case-studies used in the INTEPOL Project Annex to Final Report from the INTEPOL project CEC Contract n: SOE1-CT97-1057 PUBLIC Project coordinator: Dr. Boelie Elzen Centre for Science, Technology and Society University of Twente, TWRC Bdg, Rm. D319 PO Box 217, 7500 AE Enschede, Netherlands Partners: University of Twente (Netherlands) Norwegian University of Science and Technolog...

Public key cryptography has become very popular recently. To use it securely, it is necessary to employ systems offering at least a basic set of functions associated with public key cryptosystems containing generation of keys, secure generation of certificates, verification of signatures, dissemination of revoked certificates, and so on. This paper demonstrates that the use of public key crypto...

Object matching (also referred to as duplicate identification, record linkage, entity resolution or reference reconciliation) is a crucial task for data integration and data cleaning. The task is to detect multiple representations of the same real-world object. This is a challenging task particularly for objects that are highly heterogeneous and of limited data quality, e.g., regarding complete...

It would seem reasonable to direct most nutritional research towards those problems that most afflict mankind, but in the present state of knowledge it is difficult to ascertain which these are. The first part of this paper will outline some of the difficulties but subsequently a rank order will be given which no doubt will be controversial. Thus the subject matter of this paper has revealed pe...

The population problem has been a popular theme for a decade or more. About every possible medium from scientific and literary journals to the daily press and television, has had a hand in presenting its multiple details and controversies. The result is a familiarity so universal that a summary satisfies present purposes. The main objective is to state the particular obligations of medicine and...