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Now showing items 571-580 of 740
Measurement of the cross-section for Z → e+e- production in pp collisions at s√=7 TeV
(Springer, 2013-02-19)
A measurement of the cross-section for pp → Z → e+e− is presented using data at s√=7
TeV corresponding to an integrated luminosity of 0.94 fb−1. The process is measured within the kinematic acceptance ...
Measurement of the inelastic pp cross-section at a centre-of-mass energy of s√ = 7 TeV
(Springer, 2015-02-19)
The cross-section for inelastic proton-proton collisions, with at least one prompt long-lived charged particle of transverse momentum p T > 0.2GeV/c in the pseudorapidity range 2.0 < η < 4.5, is measured ...
Evolution of Decision Trees
(4rt Congrés Català d'Intel.ligència Artificial, Barcelona, 24-25 d'octubre de 2001, 2001-10)
This paper addresses the issue of the induction of orthogonal, oblique and multivariate decision trees. Algorithms proposed by other researchers use heuristic, usually based on the information gain ...
LHCb reoptimized detector design and performance: Technical Design Report
(CERN, 2003-09-09)
The LHCb experiment has been conceived to study CP violation and other rare phenomena in B meson decays with very high precision. This should provide a profound understanding of quark flavour physics ...
Searches for 25 rare and forbidden decays of D+ and D+s mesons
(Springer, 2021-06)
A search is performed for rare and forbidden charm decays of the form D+(s)→h±ℓ+ℓ(′)∓, where h± is a pion or kaon and ℓ(′)± is an electron or muon. The measurements are performed using proton-proton ...
Revisión sobre métricas de complejidad en el modelado de clústers de un sistema CBR
(II Congreso Español de Informática. V Taller de Minería de Datos y Aprendizaje, Zaragoza, del 11-14 septiembre 2007, 2007-09)
El análisis de la complejidad de los datos mediante métricas de complejidad es útil para predecir el comportamiento de un sistema de aprendizaje. Este trabajo ilustra cómo las métricas permiten definir ...
Sistema tutor avanzado
(X Jornadas de la Enseñanza Universitaria de la Informática, Alicante, del 14-16 de julio 2004, 2004-07)
Sistema tutor avanzadoDavid Vernet, Xavier Canaleta Dpto. de Informática Enginyeria i Arquitectura La Salle Universitat Ramon Llull 08022 Barcelona e-mail: {dave,xavic}@salleurl.edu Resumen El presente ...
Measurement of polarization amplitudes and CP asymmetries in B 0 → ϕK *(892)0
(Springer, 2014-05-16)
An angular analysis of the decay B 0 → ϕK *(892)0 is reported based on a pp collision data sample, corresponding to an integrated luminosity of 1.0 fb−1, collected at a centre-of-mass energy of s√ = 7 ...
Contiguous Frequency-Time Resource Allocation andScheduling for Wireless OFDMA Systems with QoS Support
(Hindawi Publishing Corporation, 2009-04)
The orthogonal frequency division multiple access (OFDMA) scheme has been selected as a potential candidate for many emerging broadband wireless access standards. In this paper, a new joint scheduling ...
Variation of Ionospheric Narrowband and Wideband Performance for a 12,760 km Transequatorial Link and Its Dependence on Solar and Ionospheric Activity
(MDPI, 2020-08)
The ionosphere provides a channel that is able to propagate electromagnetic waves for long-haul communications, allowing Non-Line-Of-Sight (NLOS) radio communications in the high-frequency band (HF). ...