This paper presents an application of Support Vector Regression method for the prediction of an environmental variable such as the level of natural radioactivity. The basics of the method are described, and some practical considerations are presented, including the meaning of the method’s parameters and their influence on the model. The use of the prior data is discussed. It is shown how to inc...

A multi-agent approach to community detection is studied. There are three objectives in this thesis. The first is to investigate how the parameters of the model affect the community structure. To investigate this, the parameters are swept one at the time and the results are then compared to each other. The second objective is to study how the initial values of the agents affect the community st...

In this paper we describe an approach to constraint-based syntactic theories in terms of finite tree automata. The solutions to constraints expressed in weak monadic second order (MSO) logic are represented by tree automata recognizing the assignments which make the formulas true. We show that this allows an efficient representation of knowledge about the content of constraints which can be use...

The IRAF specred package is specialized for the extraction, sky subtraction, wavelength calibration, and flux calibration of CTIO slit spectra. It contains the general tools needed for each reduction step. However, the main emphasis of this package is to streamline the complete reduction by combining all the steps into a single task specproc and collecting all the processing, instrument, and al...

The report deals with speech enhancement in a noisy environment. A new, direct shaping parametric formulation of generalised adaptive spectral subtraction algorithm for non-stationary interference is considered. The idea of the authors is not to select but to form desirable envelope of spectral estimator function in SNR*Gain-function area. Some principles of parameters choice are proposed, base...

The Minimalist Program, by Noam Chomsky, is a collection of four articles, ‘The Theory of Principles and Parameters ’ (written with Howard Lasnik, –), ‘Some notes on Economy of Derivation and representation’ (–), ‘A Minimalist Program for linguistic theory’ (–), and ‘Categories and transformations’ (–). The first three articles have appeared elsewhere, and are reprinted h...

The ACTS project on Contract Negotiation and Charging in ATM Networks (CANCAN) is now entering its second year. This paper will describe some of the activities of Work Package 2 in laying the foundation for the development of effective ATM charging schemes. Of great importance are the charging parameters which may be divided into access parameters considered at the registration of a service, an...

Absorption of ultrasonic longitudinal waves in the nematic liquid crystal 1-(trans4-hexylcyclohexyl)-4-isothiocyanatobenzene (6CHBT) was measured in the temperature (24-56oC) and frequency (3.2-100 MHz) ranges. In the region of the phase transition the anomalous absorption has been observed. This absorption rapidly increases when the frequency of the ultrasonic wave decreases. The experimental ...

Forest fires are a major risk factor with strong impact at eco-environmental and socioeconomical levels, reasons why their study and modeling are very important. However, the models frequently have a certain level of uncertainty in some input parameters given that they must be approximated or estimated, as a consequence of diverse difficulties to accurately measure the conditions of the phenome...

Ordering ambiguity associated with the von Roos position dependent mass (PDM) Hamiltonian is considered. A PDM-pseudo-momentum operator Π̂1 = −i [μ (x)∂x + g (x)] is introduced (the Hermiticity of which is secured by the condition g (x) = ∂xμ (x) /2) and generalized to ddimensions. Intertwining our Hamiltonian, HMM = Π̂ 2 d + V (x), with the von Roos d-dimensional PDM-Hamiltonian, HvR = T̂d (α, β,...