Search results for "Mach"

Machine learning for mortality analysis in patients with COVID-19

2020

This paper analyzes a sample of patients hospitalized with COVID-19 in the region of Madrid (Spain). Survival analysis, logistic regression, and machine learning techniques (both supervised and unsupervised) are applied to carry out the analysis where the endpoint variable is the reason for hospital discharge (home or deceased). The different methods applied show the importance of variables such as age, O2 saturation at Emergency Rooms (ER), and whether the patient comes from a nursing home. In addition, biclustering is used to globally analyze the patient-drug dataset, extracting segments of patients. We highlight the validity of the classifiers developed to predict the mortality, reaching…

A Curvature Based Method for Blind Mesh Visual Quality Assessment Using a General Regression Neural Network

2016

International audience; No-reference quality assessment is a challenging issue due to the non-existence of any information related to the reference and the unknown distortion type. The main goal is to design a computational method to objectively predict the human perceived quality of a distorted mesh and deal with the practical situation when the reference is not available. In this work, we design a no reference method that relies on the general regression neural network (GRNN). Our network is trained using the mean curvature which is an important perceptual feature representing the visual aspect of a 3D mesh. Relatively to the human subjective scores, the trained network successfully asses…

Patriarchal reaction against advances in sexist violence

2019

La violencia que se ejerce contra las mujeres es una violación de los derechos humanos muy extendida, y, en gran parte, impune en todo el mundo. Cuando parecía que existía un consenso en el abordaje de la violencia machista, actualmente nos enfrentamos a una amenaza de retroceso, que intenta poner en cuestión, incluso, el concepto acordado por Naciones Unidas (1979), OMS (2002), el Convenio de Estambul (2011) y la Ley Orgánica 1/2004, de 28 de diciembre, de Medidas de Protección Integral contra la violencia de género en el caso del Estado español. Este artículo es una reflexión, basada en la idea de que las sociedades democráticas tenemos la obligación de blindar la defensa de los derechos …

The Machiavellian reformation : an essay in political theory

2006

Uskonnon asema Niccolò Machiavellin (1469–1527) politiikan teoriassa on herättänyt laajaa keskustelua. Toisten mukaan Machiavelli oli harras katolilainen ja huolestunut siitä, että poliittisessa toiminnassa ei voi seurata kristillisiä ohjeita. Toisaalta on väitetty, että Machiavelli oli ateisti, jonka tarkoituksena oli erottaa politiikka ja moraali toisistaan ja hävittää uskonto kokonaan. Useimmiten Machiavelli nähdään uuspakanallisuuden kannattajana, sillä hän ihaili antiikin Roomaa ja sen uskonnollisia käytäntöjä.Machiavellin ”reformaatiota” väitöstyössään tutkinut Paul-Erik Korvela esittää, että kaikki nämä näkemykset ovat harhaanjohtavia.Renessanssin aikainen kirkko ja erityisesti sen y…

Tasavallan ja ruhtinaskunnan välimaastossa

2011

Varieties Generated by Certain Models of Reversible Finite Automata

2006

Reversible finite automata with halting states (RFA) were first considered by Ambainis and Freivalds to facilitate the research of Kondacs-Watrous quantum finite automata. In this paper we consider some of the algebraic properties of RFA, namely the varieties these automata generate. Consequently, we obtain a characterization of the boolean closure of the classes of languages recognized by these models.

The Riverine Organism Drift Imager: A new technology to study organism drift in rivers and streams

2023

1. Drift or downstream dispersal is a fundamental process in the life cycle of many riverine organisms. In the face of rapidly declining freshwater biodiversity, there is a need to enhance our capacity to study the drift of riverine organisms, by overcoming the limitations of traditional labour-intensive sampling methods that result in data of low temporal and spatial resolution. 2. To address this need, we developed a new technology, the Riverine Organism Drift Imager (RODI), which combines in situ imaging with machine-learning classification. This technique expands on the traditional methodology by replacing the collection cup of a drift net with a camera system that continuously images r…

Comparison between Focused Electron/Ion Beam-Induced Deposition at Room Temperature and under Cryogenic Conditions

2019

This article belongs to the Special Issue Multi-Dimensional Direct-Write Nanofabrication.

Fonti bibliche nelle opere machiavelliane. Spunti per una ricerca

2012

Persistence in complex systems

2022

Persistence is an important characteristic of many complex systems in nature, related to how long the system remains at a certain state before changing to a different one. The study of complex systems' persistence involves different definitions and uses different techniques, depending on whether short-term or long-term persistence is considered. In this paper we discuss the most important definitions, concepts, methods, literature and latest results on persistence in complex systems. Firstly, the most used definitions of persistence in short-term and long-term cases are presented. The most relevant methods to characterize persistence are then discussed in both cases. A complete literature r…