The general problem of unsupervised textured image segmentation remains a fundamental but not entirely solved issue in image analysis. Many studies have proven that statistical model-based texture segmentation algorithms yield good results provided that the model parameters and the number of regions be known a priori. In this paper, we present an unsupervised texture segmentation method which d...

Two new states in the charm strange sector, D∗sJ(2317) + and DsJ(2460), have recently been discovered at e+e− collider experiments. The new states are first observed in the dominant Ds π0 and D∗+ s π0 modes respectively and are very narrow. They are consistent with 0+ and 1+ P-wave cs mesons. The DsJ(2460) meson is also observed in Ds γ and Ds π+π− modes. A review of the discoveries and possibl...

There has been considerable increase of interest recently among theoretical linguists in empirical data that go beyond intuitive judgements on grammaticality and meaning of linguistic expressions. This concerns, among other areas, data resulting from experiments during which subjects carry out various linguistic or non-linguistic tasks that are somehow connected with the production or comprehen...

We apply a heuristic method based on counting points over finite fields to the Poincaré center problem. We show that this method gives the correct results for homogeneous non linearities of degree 2 and 3. Also we obtain some new information about general degree 3 non linearities. Introduction In 1885 Poincaré asked when the differential equation y = − x+ p(x, y) y + q(x, y) =: − P (x, y) Q(x, ...

Property measurements together with the circumstances of the experiments in which they have been obtained are often stored in databases or knowledge bases, so-called measurement bases. Suppose a user is interested in a measurement that is not in the base, that is, no experiment matching the hypothetical experimental description provided by the user is found. This paper presents a method that gi...