20 research outputs found
Immunoregulation in human malaria: the challenge of understanding asymptomatic infection
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Efficient Cardinality/Mean-Variance Portfolios
No full textWe propose a novel approach to handle cardinality in portfolio selection, by means of a biobjective cardinality/mean-variance problem, allowing the investor to analyze the efficient tradeoff between return-risk and number of active positions. Recent progress in multiobjective optimization without derivatives allow us to robustly compute (in-sample) the whole cardinality/mean-variance efficient frontier, for a variety of data sets and mean-variance models. Our results show that a significant number of efficient cardinality/mean-variance portfolios can overcome (out-of-sample) the naive strategy, while keeping transaction costs relatively low
Discrete time congestion controllers for multi-source connection-oriented communication networks
No full textDevelopment and Validation of Nomograms for Malignancy Prediction in Soft Tissue Tumors Using Magnetic Resonance Imaging Measurements
No full textIn vivo proton magnetic resonance spectroscopy of breast cancer: a review of the literature
No full textVariations of the blood gas levels and thermodilutional parameters during ICP monitoring after severe head trauma in children
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