Documentos de Trabajo del Departamento de Matemática y Ciencias
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- ItemMultilinear H older-type inequalities on Lorentz sequence spaces(2008-07) Carando, Daniel; Dimant, Verónica; Sevilla-Peris, PabloWe establish Hölder type inequalities for Lorentz sequence spaces and their duals. In order to achieve these and some related inequalities, we study diagonal multilinear forms in general sequence spaces, and obtain estimates for their norms. We also consider norms of multilinear forms in different Banach multilinear ideals.
- ItemPattern recognition via projection – based k – NN rules(2008-06) Fraiman, Ricardo; Justel, Ana; Svarc, MarcelaWe introduce a new procedure for pattern recognition, based on the concepts of random projections and nearest neighbors. It can be thought as an improvement of the classical nearest neighbors classification rules. Besides the concept of neighbors we introduce the notion of district, a larger set which will be projected. Then we apply one dimensional k-NN methods to the projected data on randomly selected directions. In this way we are able to provide a method with some robustness properties and more accurate to handle high dimensional data. The procedure is also universally consistent. We challenge the method with the Isolet data where we obtain a very high classification score.
- ItemThe choice of inicial Estimate for Computing MM-Estimates(2008-04) Svarc, MarcelaWe show, using a Monte Carlo study, that MM-estimates with projec- tion estimates as starting point of an iterative weighted least squares algorithm, behave more robustly than MM-estimates starting at an S-estimate and similar Gaussian efficiency. Moreover the former have a robustness behavior close to the P-estimates with an additional advantage: they are asymptotically normal making statistical inference possible.
- ItemGrowing Directed Networks: Limit in-degree distribution for arbitrary out-degree one(2007-07) Fraiman, Daniel
- ItemA coagulation estimate for inertial particles(2007-06) Armendáriz, Inés; Norris, James R.
- ItemPuff Dynamics in Oocytes: Buffers Regulation(2006-12) Fraiman, Daniel; Ponce Dawson, Silvina
- ItemOn the logarithmic derivative of the -determinant operators with boundary(2006-11) Barraza, Oscar; Sanmartino, Marcela
- ItemSelection of variables for cluster analysis and classification rules(2006-11) Fraiman, Ricardo; Justel, Ana; Svarc, Marcela
- ItemBrownian coagulation and a version of Smoluchowski’s equation on the circle(2006-09) Armendáriz, Inés
- ItemTesting statistical hypothesis on random trees(2006-08) Busch, Jorge R.; Ferrari, Pablo A.; Flesia, Georgina; Fraiman, Ricardo; Grynberg, Sebastian
- ItemCoherent Sequences of Polynomial Ideals on Banach Spaces(2006-08) Carando, Daniel; Dimant, Verónica; Muro, Santiago
- ItemThe Random Projection Method in Goodness of Fit for Functional Data(2006-06) Cuesta-Albertos, Juan Antonio; del Barrio, E.; Fraiman, Ricardo; Matrán, C.
- ItemMetric geometry of partial isometries in a finite von Neumann algebra(2006-06) Andruchow, Esteban
- ItemA Nonparametric Approach to the Estimation of Lengths and Surface Areas(2006-03) Cuevas, Antonio; Fraiman, Ricardo; Rodríguez-Casal, Alberto
- ItemA Tailor-Made Nonparametric Density Estimate(2006-02) Carando, Daniel; Fraiman, Ricardo; Groisman, Pablo
- ItemClassifying speech sonority functional data using a Projected Kolmogorov-Smirnov approach(2005-12) Cuesta-Albertos, Juan Antonio; Fraiman, Ricardo; Galves, Antonio; Garcia, Jesús
- ItemA Pseudodifferential Regularization Method(2005-11) Barraza, Oscar; Sanmartino, Marcela; Zuccalli, Marcela
- ItemIdeals of Multilinear Forms - a Limit Order Approach(2005-10) Carando, Daniel; Dimant, Verónica; Sevilla-Peris, Pablo
- ItemExtension of Polynomials and John’s Theorem for Symmetric Tensor Products(2005-06) Carando, Daniel; Dimant, Verónica
- ItemAnalysis of puff dynamics in oocytes: interdependence of puff amplitude and inter-puff interval(2005-04) Fraiman, Daniel; Pando, Bernardo; Dargan, Sheila; Parker, Ian; Ponce Dawson, Silvina
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