corpus_id stringlengths 3 9 | arxiv_id stringlengths 9 16 | date stringdate 1989-10-26 00:00:00 2024-09-30 00:00:00 | title stringlengths 4 240 | abstract stringlengths 3 3.15k | categories listlengths 1 10 | topics listlengths 0 15 ⌀ | roles listlengths 1 4 | key_references listlengths 0 10 ⌀ | authors listlengths 1 5.28k ⌀ | citation_trajectory listlengths 14 26 ⌀ |
|---|---|---|---|---|---|---|---|---|---|---|
17587183 | cond-mat/9311054 | 1993-11-23 | Conformal Field Theory Approach to Quantum Impurity Problems | A brief review is given of a new method for studying the critical behavior of quantum impurity problems, based on conformal field theory techniques, which I developed with Andreas Ludwig. Some results on the overscreened Kondo problem are reviewed. It is shown that the simple open and periodic fixed points, which occur... | [
"cond-mat",
"hep-th"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
14871073 | astro-ph/9311066 | 1993-11-25 | The Nonlinear Evolution of Rare Events | In this paper I consider the nonlinear evolution of a rare density fluctuation in a random density field with Gaussian fluctuations, and I rigorously show that it follows the spherical collapse dynamics applied to its mean initial profile. This result is valid for any cosmological model and is independent of the shape ... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
8606925 | astro-ph/9311072 | 1993-11-29 | Amplitude of Primeval Fluctuations from Cosmological Mass Density Reconstructions | We use the POTENT reconstruction of the mass density field in the nearby universe to estimate the amplitude of the density fluctuation power spectrum for various cosmological models. We find sigma_8\Omega_m^{0.6}= 1.3^{+0.4}_{-0.3}, almost independently of the power spectrum. This value agrees well with the COBE normal... | [
"astro-ph"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "u seljak_2",
"name": "Uroš Seljak",
"publication_history": null,
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"num_papers": null,
"num_citations": null
},
{
"author_id": "e bertschinger_1",
"name": "Edmund Bertschinger",
"publication_history": null,
"h_index": null,
"num_papers":... | null |
2035584 | cs/9312101 | 1993-11-30 | Decidable Reasoning in Terminological Knowledge Representation Systems | Terminological knowledge representation systems (TKRSs) are tools for designing and using knowledge bases that make use of terminological languages (or concept languages). We analyze from a theoretical point of view a TKRS whose capabilities go beyond the ones of presently available TKRSs. The new features studied, oft... | [
"cs.AI"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
9049639 | hep-th/9311177 | 1993-11-30 | On the Problems with Background Independence in String Theory | The problems with background independence are discussed in the example of open string theory. Based on the recent proposal by Witten I calculate the String Field Theory action in conformal perturbation theory to second order and demonstrate that the proper treatment of contact terms leads to nontrivial equations of mot... | [
"hep-th"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
18678906 | gr-qc/9312015 | 1993-12-09 | The semiclassical approximation to quantum gravity | A detailed review is given of the semiclassical approximation to quantum gravity in the canonical framework. This includes in particular the derivation of the functional Schr\"odinger equation and a discussion of semiclassical time as well as the derivation of quantum gravitational correction terms to the Schr\"odinger... | [
"gr-qc",
"astro-ph",
"hep-th"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
17366267 | astro-ph/9312026 | 1993-12-13 | Skewness and Kurtosis in Large-Scale Cosmic Fields | In this paper, I present the calculation of the third and fourth moments of both the distribution function of the large--scale density and the large--scale divergence of the velocity field, $\theta$. These calculations are made by the mean of perturbative calculations assuming Gaussian initial conditions and are expect... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
14083847 | astro-ph/9312033 | 1993-12-15 | The Three--Point Correlation Function of the Cosmic Microwave Background in Inflationary Models | We analyze the temperature three--point correlation function and the skewness of the Cosmic Microwave Background (CMB), providing general relations in terms of multipole coefficients. We then focus on applications to large angular scale anisotropies, such as those measured by the {\em COBE} DMR, calculating the contrib... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
11258062 | gr-qc/9312023 | 1993-12-15 | On Black Hole Entropy | Two techniques for computing black hole entropy in generally covariant gravity theories including arbitrary higher derivative interactions are studied. The techniques are Wald's Noether charge approach introduced recently, and a field redefinition method developed in this paper. Wald's results are extended by establish... | [
"gr-qc",
"hep-th"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
119086052 | hep-lat/9411063 | 1993-12-20 | The Schr\"odinger functional in QCD | The Schr\"odinger functional in Wilson's lattice QCD leads to a sensible classical continuum theory which can be taken as starting point for a perturbative analysis. In dimensional regularization, the saddle point expansion of the Schr\"odinger functional is performed to one-loop order of perturbation theory. The diver... | [
"hep-lat"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
2367745 | math/9401221 | 1994-01-01 | Pointwise convergence of wavelet expansions | In this note we announce that under general hypotheses, wavelet-type expansions (of functions in $L^p,\ 1\leq p \leq \infty$, in one or more dimensions) converge pointwise almost everywhere, and identify the Lebesgue set of a function as a set of full measure on which they converge. It is shown that unlike the Fourier ... | [
"math.FA"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
1600979 | math/9410208 | 1994-01-01 | Three-dimensional alpha shapes | Frequently, data in scientific computing is in its abstract form a finite point set in space, and it is sometimes useful or required to compute what one might call the ``shape'' of the set. For that purpose, this paper introduces the formal notion of the family of $\alpha$-shapes of a finite point set in $\Real^3$. Eac... | [
"math.CO",
"cs.CC",
"math.MG"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
41047525 | patt-sol/9401002 | 1994-01-05 | From Labyrinthine Patterns to Spiral Turbulence | A new mechanism for spiral vortex nucleation in nongradient reaction diffusion systems is proposed. It involves two key ingredients: An Ising-Bloch type front bifurcation and an instability of a planar front to transverse perturbations. Vortex nucleation by this mechanism plays an important role in inducing a transitio... | [
"patt-sol",
"nlin.PS"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
14138674 | hep-th/9401039 | 1994-01-11 | A Study of Fermions Coupled to Gauge and Gravitational Fields on a Cylinder | Fermions on a cylinder coupled to gravity and gauge fields are examined by studying the geometric action associated with the symmetries of such a system. The gauge coupling constant is shown to be constrained and the effect of gravity on the masses is discussed. Furthermore, we introduce a new gravitational theory whic... | [
"hep-th"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "r lano_1",
"name": "Ralph Lano",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
},
{
"author_id": "v rodgers_1",
"name": "Vincent [\"G. J.\"] Rodgers",
"publication_history": null,
"h_index": null,
"num_papers":... | null |
830 | cs/9402102 | 1994-01-31 | Substructure Discovery Using Minimum Description Length and Background Knowledge | The ability to identify interesting and repetitive substructures is an essential component to discovering knowledge in structural data. We describe a new version of our SUBDUE substructure discovery system based on the minimum description length principle. The SUBDUE system discovers substructures that compress the ori... | [
"cs.AI"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
18555625 | astro-ph/9402004 | 1994-02-02 | Observational and Theoretical Constraints on Singular Dark Matter Halos | The distribution of dark matter around galactic or cluster halos has usually been assumed to be approximately isothermal with a non-zero core radius, which is expected to be of the order of the size of the visible matter distribution. Recently, the possibility has been raised that dark matter halos might be singular in... | [
"astro-ph",
"hep-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
119346282 | gr-qc/9402012 | 1994-02-04 | Metric-Affine Gauge Theory of Gravity: Field Equations, Noether Identities, World Spinors, and Breaking of Dilation Invariance | In Einstein's gravitational theory, the spacetime is Riemannian, that is, it has vanishing torsion and vanishing nonmetricity (covariant derivative of the metric). In the gauging of the general affine group ${A}(4,R)$ and of its subgroup ${GL}(4,R)$ in four dimensions, energy--momentum and hypermomentum currents of mat... | [
"gr-qc",
"hep-th"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
15851311 | hep-th/9402078 | 1994-02-14 | Quantum fluctuations of the electroweak sphaleron: Erratum and Addendum | We correct an error in our treatment of the tadpole contribution to the fluctuation determinant of the sphaleron, and also a minor mistake in a previous estimate. Thereby the overall agreement between the two existing exact computations and their consistency with the estimate is improved considerably. | [
"hep-th",
"hep-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
13869380 | cond-mat/9402061 | 1994-02-16 | Magnetic order and disorder in the frustrated quantum Heisenberg antiferromagnet in two dimensions | We have performed a numerical investigation of the ground state properties of the frustrated quantum Heisenberg antiferromagnet on the square lattice (``$J_1-J_2$ model''), using exact diagonalization of finite clusters with 16, 20, 32, and 36 sites. Using a finite-size scaling analysis we obtain results for a number o... | [
"cond-mat"
] | null | [
"target.key_reference"
] | null | null | null |
14421513 | hep-lat/9402019 | 1994-02-28 | The spin content of the proton in quenched QCD | We present preliminary results on the proton spin structure function at zero momentum, in the quenched approximation. Our calculation makes use of a nonperturbative means of determining the multiplicative renormalization of the topological charge density. | [
"hep-lat"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "b allés_1",
"name": "B. Allés",
"publication_history": null,
"h_index": null,
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"num_citations": null
},
{
"author_id": "m campostrini_0",
"name": "Massimo Campostrini",
"publication_history": null,
"h_index": null,
"num_papers": null... | null |
264965631 | hep-ph/9403204 | 1994-03-01 | Multiple Gluon Effects in Fermion--(Anti)Fermion Scattering at SSC/LHC Energies | We extend the methods of Yennie, Frautschi and Suura (YFS) to compute, via Monte Carlo methods, the effects of multiple gluon emission in the processes $q+q'\to q''+q'''+n(G)$, where $G$ is a soft gluon. We show explicitly that the infrared singularities in the respective simulations are canceled to all orders in $\alp... | [
"hep-ph"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "d delaney_1",
"name": "D. Delaney",
"publication_history": null,
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},
{
"author_id": "s jadach_1",
"name": "Stanislaw Jadach",
"publication_history": null,
"h_index": null,
"num_papers": null,
... | null |
18244527 | nucl-th/9403002 | 1994-03-03 | BRST Treatment of the Bohr Collective Hamiltonian at High Spins | The BRST treatment of triaxial systems rotating at high spins is used to solve perturbatively the $\gamma$-independent Bohr collective hamiltonian. | [
"nucl-th"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "j garrahan_1",
"name": "Juan [\"P.\"] Garrahan",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
},
{
"author_id": "d bès_0",
"name": "Daniel [\"R.\"] Bès",
"publication_history": null,
"h_index": null,
"num_pape... | null |
16420997 | hep-th/9403054 | 1994-03-08 | Global U(1) R-Symmetry And Conformal Invariance Of (0,2) Models | We derive a condition under which (0,2) linear sigma models possess a ``left-moving'' conformal stress tensor in $\bq$ cohomology (i.e. which leaves invariant the ``right-moving'' ground states) even away from their critical points. At the classical level this enforces quasihomogeneity of the superpotential terms. The ... | [
"hep-th"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
11866807 | hep-lat/9403013 | 1994-03-11 | Detecting Dual Superconductivity in the Ground State of Gauge Theory | We explicitly construct a monopole creation operator: its vacuum expectation value is an order parameter for dual superconductivity, in that, if different from zero, it signals a spontaneous breaking of the $U(1)$ symmetry corresponding to monopole charge conservation. This operator is tested by numerical simulations i... | [
"hep-lat",
"hep-th"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "l debbio_1",
"name": "Luigi [\"Del\"] Debbio",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
},
{
"author_id": "a giacomo_1",
"name": "Adriano [\"di\"] Giacomo",
"publication_history": null,
"h_index": null,
"n... | null |
16065583 | cond-mat/9403051 | 1994-03-14 | Chaos and Quantum Thermalization | We show that a bounded, isolated quantum system of many particles in a specific initial state will approach thermal equilibrium if the energy eigenfunctions which are superposed to form that state obey {\it Berry's conjecture}. Berry's conjecture is expected to hold only if the corresponding classical system is chaotic... | [
"cond-mat",
"astro-ph",
"chao-dyn",
"gr-qc",
"hep-ph",
"hep-th",
"nlin.CD"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
14623223 | hep-lat/9403016 | 1994-03-15 | Field-strength correlators in $SU(2)$ gauge theory | We measure field-strength and their correlators in presence of a static $q \bar q$ pair by numerical simulations. We give an interpretation of these data in terms of quadratic and quartic cumulants. | [
"hep-lat"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "l debbio_1",
"name": "Luigi [\"Del\"] Debbio",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
},
{
"author_id": "a giacomo_1",
"name": "Adriano [\"di\"] Giacomo",
"publication_history": null,
"h_index": null,
"n... | null |
123647600 | hep-ph/9403359 | 1994-03-25 | Production and Decay of D_1(2420)^0 and D_2^*(2460)^0 | We have investigated $D^{+}\pi^{-}$ and $D^{*+}\pi^{-}$ final states and observed the two established $L=1$ charmed mesons, the $D_1(2420)^0$ with mass $2421^{+1+2}_{-2-2}$ MeV/c$^{2}$ and width $20^{+6+3}_{-5-3}$ MeV/c$^{2}$ and the $D_2^*(2460)^0$ with mass $2465 \pm 3 \pm 3$ MeV/c$^{2}$ and width $28^{+8+6}_{-7-6}$ ... | [
"hep-ph",
"hep-ex"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "p avery_1",
"name": "Paul Avery",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
},
{
"author_id": "a freyberger_1",
"name": "A. Freyberger",
"publication_history": null,
"h_index": null,
"num_papers": null,
... | null |
124368878 | hep-ph/9403382 | 1994-03-29 | Measurement of the Branching Fraction for D^+ \to K^- \pi^+ \pi^+ | Using the CLEO-II detector at CESR we have measured the ratio of branching fractions, ${\cal B}(D^+\rightarrow K^- \pi^+ \pi^+)/{\cal B}(D^0 \rightarrow K^-\pi^+) = 2.35 \pm 0.16 \pm 0.16$. Our recent measurement of ${\cal B}(D^0 \rightarrow K^-\pi^+)$ then gives ${\cal B}(D^+\rightarrow K^- \pi^+ \pi^+) = (9.3 \pm 0.6... | [
"hep-ph",
"hep-ex"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "m artuso_2",
"name": "Marina Artuso",
"publication_history": null,
"h_index": null,
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"num_citations": null
},
{
"author_id": "a efimov_1",
"name": "A. [\"O.\"] Efimov",
"publication_history": null,
"h_index": null,
"num_papers": null... | null |
14210917 | hep-ph/9403390 | 1994-03-30 | $K_{l4}$ - Decays Beyond One Loop | The matrix elements for $K\rightarrow \pi \pi \l \nu$ decays are described by four form factors $F,G,H$ and $R$. We complete previous calculations by evaluating $R$ at next-to-leading order in the low-energy expansion. We then estimate higher order contributions using dispersion relations and determine the low-energy c... | [
"hep-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
119339281 | astro-ph/9403066 | 1994-03-31 | On Determining the Spectrum of Primordial Inhomogeneity from the COBE DMR Sky Maps: I. Method | The natural approach to a spectral analysis of data distributed on the sky employs spherical harmonic decomposition. A common problem encountered in practical astronomy is the lack of full sky coverage in the available data. For example, the removal of the galactic plane data from the COBE DMR sky maps compromises Four... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
19015664 | hep-th/9404008 | 1994-04-02 | Free Fermion Representation of a Boundary Conformal Field Theory | The theory of a massless two-dimensional scalar field with a periodic boundary interaction is considered. At a critical value of the period this system defines a conformal field theory and can be re-expressed in terms of free fermions, which provide a simple realization of a hidden $SU(2)$ symmetry of the original theo... | [
"hep-th"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
215823854 | cmp-lg/9404002 | 1994-04-03 | Lessons from a Restricted Turing Test | We report on the recent Loebner prize competition inspired by Turing's test of intelligent behavior. The presentation covers the structure of the competition and the outcome of its first instantiation in an actual event, and an analysis of the purpose, design, and appropriateness of such a competition. We argue that th... | [
"cmp-lg",
"cs.CL"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
97302385 | chem-ph/9404003 | 1994-04-05 | Quantum Annealing: A New Method for Minimizing Multidimensional Functions | Quantum annealing is a new method for finding extrema of multidimensional functions. Based on an extension of classical, simulated annealing, this approach appears robust with respect to avoiding local minima. Further, unlike some of its predecessors, it does not require an approximation to a wavefunction. In this pape... | [
"chem-ph",
"physics.chem-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
14729213 | math/9404209 | 1994-04-14 | Factorization and Reflexivity on Fock spaces | The framework of the paper is that of the full Fock space ${\Cal F}^2({\Cal H}_n)$ and the Banach algebra $F^\infty$ which can be viewed as non-commutative analogues of the Hardy spaces $H^2$ and $H^\infty$ respectively. An inner-outer factorization for any element in ${\Cal F}^2({\Cal H}_n)$ as well as characterizatio... | [
"math.FA"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
13908710 | hep-th/9404101 | 1994-04-17 | Chern-Simons Gauge Theory on Orbifolds: Open Strings from Three Dimensions | Chern-Simons gauge theory is formulated on three dimensional $Z_2$ orbifolds. The locus of singular points on a given orbifold is equivalent to a link of Wilson lines. This allows one to reduce any correlation function on orbifolds to a sum of more complicated correlation functions in the simpler theory on manifolds. C... | [
"hep-th",
"cond-mat"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
14150683 | astro-ph/9404038 | 1994-04-18 | Unsteady Outflow Models for Cosmological Gamma-Ray Bursts | The 'event' that triggers a gamma ray burst cannot last for more than a few seconds. This is, however, long compared with the dynamical timescale of a compact stellar-mass object ($\sim 10^{-3}$ seconds). Energy is assumed to be released as an outflow with high mean lorentz factor $\Gamma$. But a compact stellar-mass c... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
215824490 | cmp-lg/9404008 | 1994-04-26 | Principles and Implementation of Deductive Parsing | We present a system for generating parsers based directly on the metaphor of parsing as deduction. Parsing algorithms can be represented directly as deduction systems, and a single deduction engine can interpret such deduction systems so as to implement the corresponding parser. The method generalizes easily to parsers... | [
"cmp-lg",
"cs.CL"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
16877043 | hep-ex/9404001 | 1994-04-27 | Precise Measurement of the Left-Right Cross Section Asymmetry in $Z$ Boson Production by $\ee$ Collisions | We present a precise measurement of the left-right cross section asymmetry ($A_{LR}$) for $Z$ boson production by $\ee$ collisions. The measurement was performed at a center-of-mass energy of 91.26 GeV with the SLD detector at the SLAC Linear Collider (SLC). The luminosity-weighted average polarization of the SLC elect... | [
"hep-ex",
"hep-ph"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "k abe_2",
"name": "Koji Abe",
"publication_history": null,
"h_index": null,
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},
{
"author_id": "i abt_1",
"name": "Iris Abt",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations"... | null |
16898319 | hep-ph/9404357 | 1994-04-29 | Nonequilibrium Quantum Dynamics Of Disoriented Chiral Condensates | The nonequilibrium dynamics of the chiral phase transition expected during the expansion of the quark-qluon plasma produced in a high energy hadron or heavy ion collision is studied in the O(4) linear sigma model to leading order in a large $N$ expansion. Starting from an approximate equilibrium configuration at an ini... | [
"hep-ph"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "f cooper_1",
"name": "Fred Cooper",
"publication_history": null,
"h_index": null,
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},
{
"author_id": "y kluger_1",
"name": "Yuval Kluger",
"publication_history": null,
"h_index": null,
"num_papers": null,
"n... | null |
118988341 | astro-ph/9405002 | 1994-05-02 | Large Scale Structure Effects on the Gravitational Lens Image Positions and Time Delay | We compute the fluctuations in gravitational lens image positions and time delay caused by large scale structure correlations. We show that these fluctuations can be expressed as a simple integral over the density power spectrum. Using the {\sl COBE} normalization we find that positions of objects at cosmological dista... | [
"astro-ph"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "u seljak_2",
"name": "Uroš Seljak",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
}
] | null |
5598810 | cmp-lg/9405007 | 1994-05-03 | Towards History-based Grammars: Using Richer Models for Probabilistic Parsing | We describe a generative probabilistic model of natural language, which we call HBG, that takes advantage of detailed linguistic information to resolve ambiguity. HBG incorporates lexical, syntactic, semantic, and structural information from the parse tree into the disambiguation process in a novel way. We use a corpus... | [
"cmp-lg",
"cs.CL"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "e black_5",
"name": "Ezra Black",
"publication_history": null,
"h_index": null,
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},
{
"author_id": "f jelinek_0",
"name": "Frederick Jelinek",
"publication_history": null,
"h_index": null,
"num_papers": null,
... | null |
1985596 | cmp-lg/9405017 | 1994-05-09 | Best-first Model Merging for Hidden Markov Model Induction | This report describes a new technique for inducing the structure of Hidden Markov Models from data which is based on the general `model merging' strategy (Omohundro 1992). The process begins with a maximum likelihood HMM that directly encodes the training data. Successively more general models are produced by merging H... | [
"cmp-lg",
"cs.CL"
] | null | [
"target.author.publication_history",
"target.author.publication_history.key_reference"
] | [] | [
{
"author_id": "a stolcke_1",
"name": "Andreas Stolcke",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
},
{
"author_id": "s omohundro_1",
"name": "Stephen [\"M.\"] Omohundro",
"publication_history": null,
"h_index": null,
"num... | null |
1043632 | cmp-lg/9405015 | 1994-05-09 | Intention-based Segmentation: Human Reliability and Correlation with Linguistic Cues | Certain spans of utterances in a discourse, referred to here as segments, are widely assumed to form coherent units. Further, the segmental structure of discourse has been claimed to constrain and be constrained by many phenomena. However, there is weak consensus on the nature of segments and the criteria for recognizi... | [
"cmp-lg",
"cs.CL"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "r passonneau_1",
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},
{
"author_id": "d litman_1",
"name": "Diane [\"J.\"] Litman",
"publication_history": null,
"h_index": null,
"num_papers... | null |
5713988 | cmp-lg/9405016 | 1994-05-10 | Precise n-gram Probabilities from Stochastic Context-free Grammars | We present an algorithm for computing n-gram probabilities from stochastic context-free grammars, a procedure that can alleviate some of the standard problems associated with n-grams (estimation from sparse data, lack of linguistic structure, among others). The method operates via the computation of substring expectati... | [
"cmp-lg",
"cs.CL"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "a stolcke_1",
"name": "Andreas Stolcke",
"publication_history": null,
"h_index": null,
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},
{
"author_id": "j segal_1",
"name": "Jonathan Segal",
"publication_history": null,
"h_index": null,
"num_papers": null,
... | null |
119014222 | hep-ph/9405279 | 1994-05-12 | Non-equilibrium evolution of the disoriented chiral condensate in heavy-ion collisions | We study the dynamics of the chiral phase transition expected during the expansion of the quark-gluon plasma produced in a high energy hadron or heavy ion collision in the $O(4)$ linear sigma model to leading order in a large $N$ expansion for strong coupling constants. Starting from an approximate equilibrium configur... | [
"hep-ph"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "y kluger_1",
"name": "Yuval Kluger",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
}
] | null |
7554018 | hep-ph/9405322 | 1994-05-18 | A Global Analysis of the Top Quark Couplings to Gauge Bosons | We propose to probe the electroweak symmetry breaking sector by measuring the effective couplings of the top quark to gauge bosons. Using precision LEP data, we constrain the non--universal couplings of t-t-Z and t-b-W, parameterized by $\kappa_{L}^{NC}$, $\kappa_{R}^{NC}$, $\kappa_{L}^{CC}$ and $\kappa_{R}^{CC}$, in t... | [
"hep-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
11154422 | math/9405204 | 1994-05-20 | An Induction Principle and Pigeonhole Principles for K-Finite Sets | We establish a course-of-values induction principle for K-finite sets in intuitionistic type theory. Using this principle, we prove a pigeonhole principle conjectured by Benabou and Loiseau. We also comment on some variants of this pigeonhole principle. | [
"math.LO"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "a blass_1",
"name": "Andreas Blass",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
}
] | null |
15088813 | math/9405202 | 1994-05-20 | Simple Cardinal Characteristics of the Continuum | We classify many cardinal characteristics of the continuum according to the complexity, in the sense of descriptive set theory, of their definitions. The simplest characteristics (boldface Sigma^0_2 and, under suitable restrictions, Pi^0_2) are shown to have pleasant properties, related to Baire category. We construct ... | [
"math.LO"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "a blass_1",
"name": "Andreas Blass",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
}
] | null |
6458920 | math/9405205 | 1994-05-20 | Seven Trees in One | Following a remark of Lawvere, we explicitly exhibit a particularly elementary bijection between the set T of finite binary trees and the set T^7 of seven-tuples of such trees. "Particularly elementary" means that the application of the bijection to a seven-tuple of trees involves case distinctions only down to a fixed... | [
"math.LO"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "a blass_1",
"name": "Andreas Blass",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
}
] | null |
16104618 | math/9405203 | 1994-05-20 | Baire Category for Monotone Sets | We study Baire category for subsets of 2^omega that are downward-closed with respect to the almost-inclusion ordering (on the power set of the natural numbers, identified with 2^omega). We show that it behaves better in this context than for general subsets of 2^omega. In the downward-closed context, the ideal of meage... | [
"math.LO"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "a blass_1",
"name": "Andreas Blass",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
}
] | null |
17512786 | hep-ph/9405352 | 1994-05-23 | Non-Equilibrium Quantum Fields in the Large N Expansion | An effective action technique for the time evolution of a closed system consisting of one or more mean fields interacting with their quantum fluctuations is presented. By marrying large $N$ expansion methods to the Schwinger-Keldysh closed time path (CTP) formulation of the quantum effective action, causality of the re... | [
"hep-ph",
"gr-qc",
"hep-th"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "f cooper_1",
"name": "Fredrick [\"M.\"] Cooper",
"publication_history": null,
"h_index": null,
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},
{
"author_id": "s habib_2",
"name": "Salman Habib",
"publication_history": null,
"h_index": null,
"num_papers": ... | null |
18281146 | math/9405206 | 1994-05-23 | Subgroups of the Baer-Specker Group with Few Endomorphisms but Large Dual | The Baer-Specker group is the product of countably many copies of the additive group Z of integers. Assuming the continuum hypothesis, we construct a pure subgroup G of the Baer-Specker group with the following properties. Every endomorphism of G differs from a scalar multiplication by an endomorphism of finite rank. Y... | [
"math.LO"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "a blass_1",
"name": "Andreas Blass",
"publication_history": null,
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},
{
"author_id": "r gobel_0",
"name": "Rudiger Gobel",
"publication_history": null,
"h_index": null,
"num_papers": null,
"... | null |
14137312 | hep-lat/9405019 | 1994-05-24 | Four Loop Result in $SU(3)$ Lattice Gauge Theory by a Stochastic Method: Lattice Correction to the Condensate | We describe a stochastic technique which allows one to compute numerically the coefficients of the weak coupling perturbative expansion of any observable in Lattice Gauge Theory. The idea is to insert the exponential representation of the link variables $U_\mu(x) \to \exp\{A_\mu(x)/\sqrt\beta\}$ into the Langevin algor... | [
"hep-lat"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
2616243 | cmp-lg/9405023 | 1994-05-25 | An Integrated Heuristic Scheme for Partial Parse Evaluation | GLR* is a recently developed robust version of the Generalized LR Parser, that can parse almost ANY input sentence by ignoring unrecognizable parts of the sentence. On a given input sentence, the parser returns a collection of parses that correspond to maximal, or close to maximal, parsable subsets of the original inpu... | [
"cmp-lg",
"cs.CL"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "a lavie_1",
"name": "Alon Lavie",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
}
] | null |
9846901 | cs/9406101 | 1994-05-31 | A Semantics and Complete Algorithm for Subsumption in the CLASSIC Description Logic | This paper analyzes the correctness of the subsumption algorithm used in CLASSIC, a description logic-based knowledge representation system that is being used in practical applications. In order to deal efficiently with individuals in CLASSIC descriptions, the developers have had to use an algorithm that is incomplete ... | [
"cs.AI"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
119594958 | math/9405217 | 1994-05-31 | Ratio geometry, rigidity and the scenery process for hyperbolic Cantor sets | Given a $C^{1+\gamma}$ hyperbolic Cantor set $C$, we study the sequence $C_{n,x}$ of Cantor subsets which nest down toward a point $x$ in $C$. We show that $C_{n,x}$ is asymptotically equal to an ergodic Cantor set valued process. The values of this process, called limit sets, are indexed by a H\"older continuous set-v... | [
"math.DS"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
7086288 | cmp-lg/9406001 | 1994-06-01 | Intentions and Information in Discourse | This paper is about the flow of inference between communicative intentions, discourse structure and the domain during discourse processing. We augment a theory of discourse interpretation with a theory of distinct mental attitudes and reasoning about them, in order to provide an account of how the attitudes interact wi... | [
"cmp-lg",
"cs.CL"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "n asher_1",
"name": "Nicholas Asher",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
},
{
"author_id": "a lascarides_1",
"name": "Alex Lascarides",
"publication_history": null,
"h_index": null,
"num_papers": nul... | null |
1769931 | hep-ph/9406236 | 1994-06-06 | Soft Pion Emission in Semileptonic $B$-Meson Decays | An analysis of semileptonic decays of $B$ mesons with the emission of a single soft pion is presented in the framework of the heavy-quark limit using an effective Lagrangian which implements chiral and heavy-quark symmetries. The analysis is performed at leading order of the chiral and inverse heavy mass expansions. In... | [
"hep-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
118898069 | astro-ph/9406015 | 1994-06-06 | The Flattened Dark Halo of Polar Ring Galaxy NGC 4650A: A Conspiracy of Shapes? | Kinematics and photometry of the polar ring galaxy NGC 4650A, including new observations of the rotation and velocity dispersion of its central stellar disk, are used to infer the presence of a dark matter halo and to measure its shape. Fits to the observed disk and polar ring rotation curves from detailed mass and pho... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
119519083 | astro-ph/9406013 | 1994-06-06 | Perturbative Lagrangian Approach to Gravitational Instability | This paper deals with the time evolution in the matter era of perturbations in Friedman-Lemaitre models with arbitrary density parameter $\Omega$, with either a zero cosmological constant, $\Lambda = 0$, or with a non-zero cosmological constant in a spatially flat Universe. Unlike the classical Eulerian approach where ... | [
"astro-ph"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "f bouchet_2",
"name": "Franccois [\"R.\"] Bouchet",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
},
{
"author_id": "s colombi_1",
"name": "Stéphane Colombi",
"publication_history": null,
"h_index": null,
"num_... | null |
119668709 | math/9406212 | 1994-06-07 | Concentration of Measure and Isoperimetric Inequalities in Product Spaces | The concentration of measure prenomenon roughly states that, if a set $A$ in a product $\Omega^N$ of probability spaces has measure at least one half, ``most'' of the points of $\Omega^N$ are ``close'' to $A$. We proceed to a systematic exploration of this phenomenon. The meaning of the word ``most'' is made rigorous b... | [
"math.PR",
"math.FA"
] | null | [
"target.author.publication_history.key_reference",
"target.key_reference"
] | null | null | null |
9226435 | astro-ph/9406046 | 1994-06-14 | Polarization and Anisotropy of the Microwave Sky | We study the polarization-polarization and polarization-temperature correlations in standard adiabatic scenarios for structure formation. Temperature anisotropies due to gravitational potential wells and oscillations in the photon-baryon-electron fluid on the surface of last scattering are each associated with a correl... | [
"astro-ph",
"hep-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
18804610 | astro-ph/9406050 | 1994-06-17 | A Two-Fluid Approximation for Calculating the Cosmic Microwave Background Anisotropies | We present a simple, yet accurate approximation for calculating the cosmic microwave background anisotropy power spectrum in adiabatic models. It consists of solving for the evolution of a two-fluid model until the epoch of recombination and then integrating over the sources to obtain the CMB anisotropy power spectrum.... | [
"astro-ph"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "u seljak_2",
"name": "Uroš Seljak",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
}
] | null |
12009057 | cmp-lg/9406033 | 1994-06-21 | Verb Semantics and Lexical Selection | This paper will focus on the semantic representation of verbs in computer systems and its impact on lexical selection problems in machine translation (MT). Two groups of English and Chinese verbs are examined to show that lexical selection must be based on interpretation of the sentence as well as selection restriction... | [
"cmp-lg",
"cs.CL"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
1580335 | cmp-lg/9406034 | 1994-06-22 | Decision Lists for Lexical Ambiguity Resolution: Application to Accent Restoration in Spanish and French | This paper presents a statistical decision procedure for lexical ambiguity resolution. The algorithm exploits both local syntactic patterns and more distant collocational evidence, generating an efficient, effective, and highly perspicuous recipe for resolving a given ambiguity. By identifying and utilizing only the si... | [
"cmp-lg",
"cs.CL"
] | null | [
"target.author.publication_history",
"target.author.publication_history.key_reference"
] | [] | [
{
"author_id": "d yarowsky_1",
"name": "David Yarowsky",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
}
] | null |
22395099 | gr-qc/9406040 | 1994-06-22 | A Striking Property of the Gravitational Hamiltonian | {\sl A Hamiltonian framework for 2+1 dimensional gravity coupled with matter (satisfying positive energy conditions) is considered in the asymptotically flat context. It is shown that the total energy of the system is non-negative, vanishing if and only if space-time is (globally) Minkowskian. Furthermore, contrary to ... | [
"gr-qc"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
796701 | cmp-lg/9406037 | 1994-06-23 | Multi-Paragraph Segmentation of Expository Text | This paper describes TextTiling, an algorithm for partitioning expository texts into coherent multi-paragraph discourse units which reflect the subtopic structure of the texts. The algorithm uses domain-independent lexical frequency and distribution information to recognize the interactions of multiple simultaneous the... | [
"cmp-lg",
"cs.CL"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
18859976 | hep-ph/9406381 | 1994-06-23 | W and Z Polarization Effects in Hadronic Collisions | A Monte Carlo study of the polar and azimuthal angular distributions of the lepton pair arising from the decay of a $W$ or $Z$ boson produced at high transverse momentum in hadronic collisions is presented. In the absence of cuts on the final state leptons, the lepton angular distribution in the gauge boson rest frame ... | [
"hep-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
14682902 | hep-th/9406161 | 1994-06-24 | A note on the path integral for systems with primary and secondary second class constraints | It is shown that the phase space path integral for a system with arbitrary second class constraints (primary, secondary ...) can be rewritten as a configuration space path integral of the exponent of the Lagrangian action with some local measure. | [
"hep-th"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
263797161 | dg-ga/9406005 | 1994-06-30 | $n$-transitivity of certain diffeomorphism groups | Some groups of real analytic diffeomorphism act n-transitively for each finite n. | [
"dg-ga",
"math.DG"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
25697318 | cond-mat/9406120 | 1994-06-30 | Universal and Non-Universal First-Passage Properties of Planar Multipole Flows | The dynamics of passive Brownian tracer particles in steady two-dimensional potential flows between sources and sinks is investigated. The first-passage probability, $p(t)$, exhibits power-law decay with a velocity-dependent exponent in radial flow and an order-dependent exponent in multipolar flows. For the latter, th... | [
"cond-mat"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
2317415 | cond-mat/9407022 | 1994-07-05 | Two-Bit Gates are Universal for Quantum Computation | A proof is given, which relies on the commutator algebra of the unitary Lie groups, that quantum gates operating on just two bits at a time are sufficient to construct a general quantum circuit. The best previous result had shown the universality of three-bit gates, by analogy to the universality of the Toffoli three-b... | [
"cond-mat",
"hep-lat",
"quant-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
119155823 | math/9407203 | 1994-07-12 | Reductions Between Cardinal Characteristics of the Continuum | We discuss two general aspects of the theory of cardinal characteristics of the continuum, especially of proofs of inequalities between such characteristics. The first aspect is to express the essential content of these proofs in a way that makes sense even in models where the inequalities hold trivially (e.g., because... | [
"math.LO"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "a blass_1",
"name": "Andreas Blass",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
}
] | null |
37375819 | astro-ph/9407044 | 1994-07-14 | Signal-to-Noise Eigenmode Analysis of the Two-Year COBE Maps | To test a theory of cosmic microwave background fluctuations, it is natural to expand an anisotropy map in an uncorrelated basis of linear combinations of pixel amplitudes --- statistically-independent for both the noise and the signal. These $S/N$-eigenmodes are indispensible for rapid Bayesian analyses of anisotropy ... | [
"astro-ph",
"gr-qc",
"hep-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
14361074 | hep-th/9407087 | 1994-07-15 | Monopole Condensation, And Confinement In N=2 Supersymmetric Yang-Mills Theory | We study the vacuum structure and dyon spectrum of N=2 supersymmetric gauge theory in four dimensions, with gauge group SU(2). The theory turns out to have remarkably rich and physical properties which can nonetheless be described precisely; exact formulas can be obtained, for instance, for electron and dyon masses and... | [
"hep-th",
"hep-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
15219282 | cmp-lg/9407015 | 1994-07-18 | Specifying Intonation from Context for Speech Synthesis | This paper presents a theory and a computational implementation for generating prosodically appropriate synthetic speech in response to database queries. Proper distinctions of contrast and emphasis are expressed in an intonation contour that is synthesized by rule under the control of a grammar, a discourse model, and... | [
"cmp-lg",
"cs.CL"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "s prevost_0",
"name": "Scott Prevost",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
},
{
"author_id": "m steedman_1",
"name": "Mark Steedman",
"publication_history": null,
"h_index": null,
"num_papers": null,
... | null |
206575683 | astro-ph/9407061 | 1994-07-20 | The Case for a Hubble Constant of 30 km/s/Mpc | Although cosmologists have been trying to determine the value of the Hubble constant for nearly 65 years, they have only succeeded in limiting the range of possibilities: most of the current observational determinations place the Hubble constant between 50 km/s/Mpc and 90 km/s/Mpc. The uncertainty is unfortunate becaus... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
260481767 | cmp-lg/9407020 | 1994-07-24 | A Sequential Algorithm for Training Text Classifiers | The ability to cheaply train text classifiers is critical to their use in information retrieval, content analysis, natural language processing, and other tasks involving data which is partly or fully textual. An algorithm for sequential sampling during machine learning of statistical classifiers was developed and teste... | [
"cmp-lg",
"cs.CL"
] | null | [
"target.author.publication_history.key_reference",
"target.key_reference"
] | null | null | null |
6855824 | hep-th/9407190 | 1994-07-28 | N=4 Topological Strings | We show how to make a topological string theory starting from an $N=4$ superconformal theory. The critical dimension for this theory is $\hat c= 2$ ($c=6$). It is shown that superstrings (in both the RNS and GS formulations) and critical $N=2$ strings are special cases of this topological theory. Applications for this ... | [
"hep-th"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
118948410 | astro-ph/9407098 | 1994-07-29 | The Distances to Five Type~II Supernovae Using the Expanding Photosphere Method and the Value of $H_0$ | We have used observations gathered at CTIO to measure distances by the Expanding Photosphere Method (EPM) to 5 Type II supernovae. These supernovae lie at redshifts from cz = 1100 km/s to z = 5500 km/s, and increase to 18 the number of distances measured using EPM. We compare distances derived to 11 Type II supernovae ... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
8023366 | cmp-lg/9407029 | 1994-07-29 | Building a Large-Scale Knowledge Base for Machine Translation | Knowledge-based machine translation (KBMT) systems have achieved excellent results in constrained domains, but have not yet scaled up to newspaper text. The reason is that knowledge resources (lexicons, grammar rules, world models) must be painstakingly handcrafted from scratch. One of the hypotheses being tested in th... | [
"cmp-lg",
"cs.CL"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
8477234 | cond-mat/9407118 | 1994-07-29 | Scaling behavior in the $\beta$-relaxation regime of a supercooled Lennard-Jones mixture | We report the results of a molecular dynamics simulation of a supercooled binary Lennard-Jones mixture. By plotting the self intermediate scattering functions vs. rescaled time, we find a master curve in the $\beta$-relaxation regime. This master curve can be fitted well by a power-law for almost three decades in resca... | [
"cond-mat"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
11407469 | cs/9408103 | 1994-07-31 | A System for Induction of Oblique Decision Trees | This article describes a new system for induction of oblique decision trees. This system, OC1, combines deterministic hill-climbing with two forms of randomization to find a good oblique split (in the form of a hyperplane) at each node of a decision tree. Oblique decision tree methods are tuned especially for domains i... | [
"cs.AI"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
2826988 | hep-ph/9408260 | 1994-08-09 | A-dependence of nuclear transparency in quasielastic A(e,e'p) at high Q^2 | The A-dependence of the quasielastic A(e,e'p) reaction has been studied at SLAC with H-2, C, Fe, and Au nuclei at momentum transfers Q^2 = 1, 3, 5, and 6.8 (GeV/c)^2. We extract the nuclear transparency T(A,Q^2), a measure of the average probability that the struck proton escapes from the nucleus A without interaction.... | [
"hep-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
6972988 | hep-ph/9408286 | 1994-08-15 | Evolution of the Disoriented Chiral Condensates in the Mean Field Approximation | We study the dynamics of the chiral phase transition expected during the expansion of the quark-gluon plasma produced in a high energy hadron or heavy ion collision, using the $O(4)$ linear sigma model in the mean field approximation. Starting from an approximate equilibrium configuration at an initial proper time $\ta... | [
"hep-ph"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "y kluger_1",
"name": "Yuval Kluger",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
}
] | null |
17584951 | hep-th/9408099 | 1994-08-17 | Monopoles, Duality and Chiral Symmetry Breaking in N=2 Supersymmetric QCD | We study four dimensional $N=2$ supersymmetric gauge theories with matter multiplets. For all such models for which the gauge group is $SU(2)$, we derive the exact metric on the moduli space of quantum vacua and the exact spectrum of the stable massive states. A number of new physical phenomena occur, such as chiral sy... | [
"hep-th",
"hep-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
119532152 | astro-ph/9408092 | 1994-08-29 | Non-Linear Cluster Lens Reconstruction | We develop a method for general non-linear cluster lens reconstruction using the observable distortion of background galaxies. The distortion measures the combination $\gamma/(1-\kappa)$ of shear $\gamma$ and surface density $\kappa$. From this we obtain an expression for the gradient of $\log (1 - \kappa)$ in terms of... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
117681108 | math/9408204 | 1994-08-30 | On the logical strength of Nash-Williams' theorem on transfinite sequences | We show that Nash-Williams' theorem asserting that the countable transfinite sequences of elements of a better-quasi-ordering ordered by embeddability form a better-quasi-ordering is provable in the subsystem of second order arithmetic Pi^1_1-CA_0 but is not equivalent to Pi^1_1-CA_0. We obtain some partial results tow... | [
"math.LO"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
17644828 | cmp-lg/9409003 | 1994-09-06 | A Probabilistic Model of Compound Nouns | Compound nouns such as example noun compound are becoming more common in natural language and pose a number of difficult problems for NLP systems, notably increasing the complexity of parsing. In this paper we develop a probabilistic model for syntactically analysing such compounds. The model predicts compound noun str... | [
"cmp-lg",
"cs.CL"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "m lauer_2",
"name": "Mark Lauer",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
},
{
"author_id": "m dras_1",
"name": "Mark Dras",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_cita... | null |
10295837 | gr-qc/9409008 | 1994-09-06 | Dumb Holes and the Effects of High Frequencies on Black Hole Evaporation | The naive calculation of black hole evaporation makes the thermal emission depend on the arbitrary high frequency behaviour of the theory where the theory is certainly wrong. Using the sonic analog to black holes-- dumb holes-- I show numerically that a change in the dispersion relation at high frequencies does not see... | [
"gr-qc"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
29590123 | cond-mat/9409028 | 1994-09-07 | Impurity scattering and transport of fractional Quantum Hall edge state | We study the effects of impurity scattering on the low energy edge state dynamic s for a broad class of quantum Hall fluids at filling factor $\nu =n/(np+1)$, for integer $n$ and even integer $p$. When $p$ is positive all $n$ of the edge modes are expected to move in the same direction, whereas for negative $p$ one mod... | [
"cond-mat"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
17124707 | nucl-th/9409007 | 1994-09-09 | Open Charm as a Probe of Pre-Equilibrium Dynamics in Nuclear Collisions? | The pre-equilibrium contribution to open charm production in nuclear collisions at $\sqrt{s}=200$ AGeV is calculated using three different models for the correlations between momentum and space-time coordinates. Ideal (Bjorken) correlation between the rapidity $y$ and space-time rapidity $\eta$ of mini-jet gluons suppr... | [
"nucl-th"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
7324510 | cmp-lg/9409010 | 1994-09-13 | Inducing Probabilistic Grammars by Bayesian Model Merging | We describe a framework for inducing probabilistic grammars from corpora of positive samples. First, samples are {\em incorporated} by adding ad-hoc rules to a working grammar; subsequently, elements of the model (such as states or nonterminals) are {\em merged} to achieve generalization and a more compact representati... | [
"cmp-lg",
"cs.CL"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "a stolcke_1",
"name": "Andreas Stolcke",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
},
{
"author_id": "s omohundro_1",
"name": "Stephen [\"M.\"] Omohundro",
"publication_history": null,
"h_index": null,
"num... | null |
15339228 | hep-lat/9409014 | 1994-09-16 | Generalized Hybrid Monte-Carlo | We propose a modification of the Hybrid Monte-Carlo method to sample equilibrium distributions of continuous field models. The method allows an efficient implementation of Fourier acceleration and is shown to reduce completely critical slowing down for the Gaussian model, i. e., $z=0$. | [
"hep-lat",
"cond-mat"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "r toral_1",
"name": "Raúl Toral",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
},
{
"author_id": "a ferreira_2",
"name": "António Ferreira",
"publication_history": null,
"h_index": null,
"num_papers": null,
... | null |
383819 | math/9409221 | 1994-09-18 | Proving time bounds for randomized distributed algorithms | A method of analyzing time bounds for randomized distributed algorithms is presented, in the context of a new and general framework for describing and reasoning about randomized algorithms. The method consists of proving auxiliary statements of the form U (t)->(p) U', which means that whenever the algorithm begins in a... | [
"math.CO",
"cs.CC"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
7168897 | math/9409223 | 1994-09-20 | On the minimum latency problem | We are given a set of points $p_1,\ldots , p_n$ and a symmetric distance matrix $(d_{ij})$ giving the distance between $p_i$ and $p_j$. We wish to construct a tour that minimizes $\sum_{i=1}^n \ell(i)$, where $\ell(i)$ is the {\em latency} of $p_i$, defined to be the distance traveled before first visiting $p_i$. This ... | [
"math.CO",
"cs.CC"
] | null | [
"target.author.publication_history",
"target.author.publication_history.key_reference"
] | [] | [
{
"author_id": "a blum_1",
"name": "Avrim Blum",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
},
{
"author_id": "p chalasani_1",
"name": "Prasad [\"R.\"] Chalasani",
"publication_history": null,
"h_index": null,
"num_papers":... | null |
5428571 | math/9409224 | 1994-09-20 | An on-line algorithm for improving performance in navigation | Recent papers have shown optimally-competitive on-line strategies for a robot traveling from a point $s$ to a point $t$ in certain unknown geometric environments. We consider the question: Having gained some partial information about the scene on its first trip from $s$ to $t$, can the robot improve its performance on ... | [
"math.CO",
"cs.CC"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "a blum_1",
"name": "Avrim Blum",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
},
{
"author_id": "p chalasani_1",
"name": "Prasad [\"R.\"] Chalasani",
"publication_history": null,
"h_index": null,
"num_papers":... | null |
6534129 | math/9409226 | 1994-09-21 | Geometry based heuristics for unit disk graphs | Unit disk graphs are intersection graphs of circles of unit radius in the plane. We present simple and provably good heuristics for a number of classical NP-hard optimization problems on unit disk graphs. The problems considered include maximum independent set, minimum vertex cover, minimum coloring and minimum dominat... | [
"math.CO",
"cs.CC"
] | null | [
"target.author.publication_history",
"target.author.publication_history.key_reference"
] | [] | [
{
"author_id": "m marathe_1",
"name": "Madhav [\"V.\"] Marathe",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
},
{
"author_id": "h breu_0",
"name": "Heinz Breu",
"publication_history": null,
"h_index": null,
"num_papers": nul... | null |
8253322 | math/9409222 | 1994-09-21 | Spanning trees short or small | We study the problem of finding small trees. Classical network design problems are considered with the additional constraint that only a specified number $k$ of nodes are required to be connected in the solution. A prototypical example is the $k$MST problem in which we require a tree of minimum weight spanning at least... | [
"math.CO"
] | null | [
"target.author.publication_history",
"target.author.publication_history.key_reference"
] | [] | [
{
"author_id": "r ravi_1",
"name": "Ramamoorthi Ravi",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
},
{
"author_id": "r sundaram_1",
"name": "Ravi Sundaram",
"publication_history": null,
"h_index": null,
"num_papers": null,
... | null |
1916686 | math/9409225 | 1994-09-21 | The complexity of approximating PSPACE-Complete problems for hierarchical specifications | We extend the concept of polynomial time approximation algorithms to apply to problems for hierarchically specified graphs, many of which are PSPACE-complete. Assuming P != PSPACE, the existence or nonexistence of such efficient approximation algorithms is characterized, for several standard graph theoretic and combina... | [
"math.CO",
"cs.CC"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "m marathe_1",
"name": "Madhav [\"V.\"] Marathe",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
},
{
"author_id": "h hunt_1",
"name": "Harry [\"B.\"] Hunt",
"publication_history": null,
"h_index": null,
"num_pap... | null |
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