1,891 research outputs found

    A Domain Meta-wrapper Using Seeds for Intelligent Author List Extraction in the Domain of Scholarly Articles

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    In this paper we investigate about automated extraction of author lists in the domain of scientific digital libraries. It is given a list of known “seed” authors and we aim to extract complete lists of co-authors from Web pages in arbitrary format. We adopt a methodology embedding domain knowledge in a unique “meta-wrapper”, not requiring training, with negligible maintenance costs and based on the combination of several extraction techniques. Such methods are applied at the structural level, at the character level and at the annotation level. We describe the methodology, illustrate our tool, compare with known approaches and measure the accuracy of our techniques with proper experiments

    IV Italian Great Network Congress Abstracts of Speakers Presentations

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    These abstracts have been reviewed and approved by the GREAT Network Scientific Committee. The abstracts have been reproduced directly from the material supplied by the authors, without editorial alteration by the staff of this Journal. Insufficiencies of preparation, grammar, spelling, style, syntax and usage are the authors’ responsibility

    F. A. J. Ianni with E. Reuss-Ianni, A Family Business. Kinship and Social Control in Organized Crime. — J. P. Hewitt, Social Stratification and Deviant Behavior

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    Francillon Gérard. F. A. J. Ianni with E. Reuss-Ianni, A Family Business. Kinship and Social Control in Organized Crime. — J. P. Hewitt, Social Stratification and Deviant Behavior. In: L'Homme, 1976, tome 16 n°4. pp. 153-155

    F. A. J. Ianni with E. Reuss-Ianni, A Family Business. Kinship and Social Control in Organized Crime. — J. P. Hewitt, Social Stratification and Deviant Behavior

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    Francillon Gérard. F. A. J. Ianni with E. Reuss-Ianni, A Family Business. Kinship and Social Control in Organized Crime. — J. P. Hewitt, Social Stratification and Deviant Behavior. In: L'Homme, 1976, tome 16 n°4. pp. 153-155

    Quasi-radial solutions for the Lane–Emden problem in the ball

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    We consider the Lane-Emden problem in the unit ball B of R^2 centered at the origin with Dirichlet boundary conditions and exponent ∈(1,+∞) of the power nonlinearity. We prove the existence of sign-changing solutions having 2 nodal domains, whose nodal line does not touch ∂ and which are non-radial. We call these solutions quasi-radial. The result is obtained for any p sufficiently large, considering least energy nodal solutions in spaces of functions invariant under suitable dihedral groups of symmetry and proving that they fulfill the required qualitative properties. We also show that these symmetric least energy solutions are instead radial for p close enough to 1, thus displaying a breaking of symmetry phenomenon in dependence on the exponent p. We then investigate the nonradial bifurcation at certain values of p from the sign-changing radial least energy solution of.. The bifurcation result gives again, with a different approach and for values of p close to the ones at which the bifurcations appear, the existence of non-radial but quasi-radial nodal solutions

    Prescribed Gauss curvature problem on singular surfaces

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    We study the existence of at least one conformal metric of prescribed Gaussian curvature on a closed surface Σ admitting conical singularities of orders αi’s at points pi’s. In particular, we are concerned with the case where the prescribed Gaussian curvature is sign-changing. Such a geometrical problem reduces to solving a singular Liouville equation. By employing a min–max scheme jointly with a finite dimensional reduction method, we deduce new perturbative results providing existence when the quantity χ(Σ) + ∑_ i α_i approaches a positive even integer, where χ(Σ) is the Euler characteristic of the surface Σ
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