One of the major data mining tasks is to cluster similar data, because of its usefulness, providing means of summarizing large ammounts of raw data into handy information. Clustering data streams is particularly challenging, because of the constraints imposed when dealing with this kind of input. Here we report our work, in which it was investigated the use of WiSARD discriminators as primary d...

This paper examines the impact of imported technologies on productivity for a sample of developing and transition countries in Central and Eastern Europe and in the Southern Mediterranean. These economies are getting more and more integrated to the European Union. The paper departs from earlier studies of international technology diffusion as it focuses on the technology embodied in the machine...

This paper discusses the relationship of new information and communication technologies (ICTs) and sustainable development. It deconstructs popular myths about a sustainable information society. One myth is that telework has reduced the need to travel and hence environmental pollution. The reality is that teleworkers make up only a small share of the total workforce, telework can generate new s...

Although the regularization increased the popularity of parameter identi)cation due to its capability of deriving a stable solution, the signi)cant problem is that the solution depends upon the regularization parameters chosen. This paper presents a technique for deriving solutions without the use of the parameters and, further, an optimization method, which can work e=ciently for problems of c...

This work presents an application of an improved version of the WiSARD weightless neural network in the recognition of different mutation types of HIV-1 and in the determination of antiretroviral drugs resistence. The data set used consists of 1205 gene sequence of the HIV-1 protease of subtypes B, C and F from patients under treatment failure. Experiments performed with the bleaching technique...

Motivated by the study of Weyl structures on conformal manifolds admitting parallel weightless forms, we define the notion of conformal product of conformal structures and study its basic properties. We obtain a classification of Weyl manifolds carrying parallel forms, and we use it to describe in further detail the holonomy of the adapted Weyl connection on conformal products. 2000 Mathematics...

We introduce two models for the quantum weightless neuron node (qRAM) dynamics. After proving the fact that it is not generally possible to mathematically isolate the second qubit after the application of a U-Controlled Operation over a couple of qubits, we propose dynamics models that operate on restrict set of states the elitist states during the iterations. The models are experimentally and ...