Appears in the 18th International Conference on Computational Linguistics (COLING 2000), pages 947-953, Saarbrücken, Germany, July, 2000. cs.CL/0008005 Statistical significance testing of differences in values of metrics like recall, precision and balanced F-score is a necessary part of empirical natural language processing. Unfortunately, we find in a set of experiments that many commonly used...

A method is described for efficiently obtaining the comprehensive information of a polychromatic radiator. Under certain conditions both the spatial and spectral details of the radiative object can be recovered simultaneously from the three-dimensional spatial coherence function in the diffraction region. The recovery of object information is based on a Fourier-transform relationship derived fr...

To predict temperature distribution in a finite biological tissue simultaneously subjected to oscillatory surface and spatial heating, we apply a nonlinear one-dimensional temperature-dependent blood perfusion bioheat Pennes transfer equation. Going from works of Jens Lang et al. in IEEE Trans. on Biomedical Engineering (1999) pp. 1129–138 and Tzu-Ching et al. in Medical Engineering & Physics 2...

In this paper, the existence and asymptotic behavior of C solutions to the multidimensional compressible Euler equations with damping on the framework of Besov space are considered. We weaken the regularity requirement of the initial data, and improve the well-posedness results of Sideris-ThomasesWang (Comm.P.D.E. 28 (2003) 953). The global existence lies on a crucial a-priori estimate which is...

(1) "Standard Methods for the Examination of Water and Wastewater", 13th ed., American Public Health Association, Washington, DC, 1971, p 339. (2) "Methods for Chemical Analysis of Water and Wastes", U.S. Environmental Protection Agency, Washington, DC, 1974, p 157. (3) L. K . Wang, J. Am. Water Works Assoc., 67 (1). 19-21 (1975). (4) L. K . Wang, W. W. Shuster. and P. J. Panzardi, J. Am. Water...

Three different computing algorithms for performing positron emission image reconstruction have been compared using Monte Carlo phantom simulations. The work was motivated by the recent announcement of the commercial availability of a positron volume imaging camera, the Siemens-CTI 953 B/31[1] which has improved axial (slice) resolution and retractable interslice septa. The simulations demonstr...

A survey was carried out to investigate the prevalence of hard tick species (Acari: Ixodidae) on cattle in Mazandaran province, Iran. A total of 953 ticks were collected from 86 infested cattle during activating seasons of ticks during 2004-2005. Nine species were identified: Boophilus annulatus (51.3%), Rhipicephalus bursa (16.8%), Haemaphysalis punctata (6.3%), Ixodes ricinus (6.8%), Hyalomma...