ar X iv : c m p - lg / 9 80 10 01 v 2 1 5 Ja n 19 98 Hierarchical Non - Emitting Markov Models

ar X iv : c m p - lg / 9 80 10 01 v 1 1 4 Ja n 19 98 Hierarchical Non - Emitting Markov Models 1

We describe a simple variant of the interpolated Markov model with nonemitting state transitions and prove that it is strictly more powerful than any Markov model. More importantly, the non-emitting model outperforms the classic interpolated model on the natural language texts under a wide range of experimental conditions, with only a modest increase in computational requirements. The non-emitt...

ar X iv : h ep - p h / 98 01 30 9 v 1 1 5 Ja n 19 98 The Spin Symmetry of Heavy Baryons in the Framework of the B . S . Equation

We construct the B.S. equation for baryons. The most general form of the B.S. wave function is given. In the heavy quark limit we show clearly that the spin symmetry exists in heavy baryon states.

ar X iv : g r - qc / 9 80 10 41 v 1 1 3 Ja n 19 98 MULTIDIMENSIONAL GRAVITY WITH P - BRANES

1 The model We consider the model governed by the action

ar X iv : a lg - g eo m / 9 70 10 13 v 1 2 6 Ja n 19 97 FAMILIES OF K 3 SURFACES

ar X iv : a st ro - p h / 97 01 22 8 v 1 2 9 Ja n 19 97 Large - scale Structures revealed by Wavelet Decomposition 1