A real sampling strategies for estimating totals and averages on a grid of quadrats: applications to forest surveys

5 julio, 2021
12:00 pm

Título: A real sampling strategies for estimating totals and averages on a grid of quadrats: applications to forest surveys

Ponente: Maria Chiara Pagliarella (INAPP of Rome and University of Cassino and Southern Lazio)

Organizador: Domingo Morales

Fecha: Lunes 5 de julio de 2021 a las 12:00 horas.

Lugar:  Online.

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Abstract: The Reduction of Emissions from Deforestation and forest Degradation (REDD) project was proposed and initiated in 2005. Monitoring of forest cover by statistical methodologies is a key pre-requisite. Forest cover is usually estimated at large scale by spatial sampling strategies, in which the study region is partitioned into polygons of equal size (e.g. quadrats). Then, a sample of N units is selected, aerial photos are provided and visually interpreted to determine the forest cover. In order to incorporate spatial aspect into the design and to account for the presence of spatial autocorrelation among the units, in this paper are compared familiar sampling schemes such as simple random sampling without replacement (SRSWR), one-per-stratum stratified sampling (STR) and systematic sampling (SIS) against ad hoc spatial schemes such as Local Pivotal Method of the first type (LPM1) by Grafström et al. (2012), Generalized Random-Tessellation Stratified Sampling (GRTSS) by Steven and Olsen (2004), Spatially Correlated Poisson Sampling (SCPS) by Grafström (2012), the drawn-by-drawn scheme avoiding the selection of contiguous units by Fattorini (2006) and the Doubly Balanced Spatial Sampling by Grafström and Tillé (2013). A simulation study is performed in order to compare and check the validity of each strategy.

Small area estimation of poverty indicators under partitioned area-level time models

1 julio, 2021
12:00 pm

Título: Small area estimation of poverty indicators under partitioned area-level time models

Ponente: Maria Chiara Pagliarella (INAPP of Rome and University of Cassino and Southern Lazio)

Organizador: Domingo Morales

Fecha: Jueves 1 de julio de 2021 a las 12:00 horas.

Lugar:  Online.

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Abstract: This paper deals with small area estimation of poverty indicators. Small area estimators of these quantities are derived from partitioned time-dependent area-level linear mixed models. The introduced models are useful for modelling the different behaviour of the target variable by sex or any other dichotomic characteristic. The mean squared errors are estimated by explicit formulas. An application to data from the Spanish Living Conditions Survey is given.

Estimating a stochastic epidemic frontier model that controls for undocumented COVID-19 cases with an application to Spain

22 junio, 2021
12:00 pm

Título: Estimating a stochastic epidemic frontier model that controls for undocumented COVID-19 cases with an application to Spain

Ponente: Luis Orea (Universidad de Oviedo)

Organizador: Juan Aparicio

Fecha: Martes 22 de junio de 2021 a las 12:00 horas.

Lugar:  Online.

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Abstract: We use a stochastic frontier analysis (SFA) approach to model the propagation of the COVID-19 epidemic across geographical areas. The proposed models permit reported and undocumented cases to be estimated, which is important as case counts are overwhelmingly believed to be undercounted. The models can be estimated using only epidemic-type data but are flexible enough to permit these reporting rates to vary across geographical cross-section units of observation. We provide an empirical application of our models to Spanish data corresponding to the initial months of the original outbreak of the virus in early 2019. We find remarkable rates of under-reporting that might explain why the Spanish Government took its time to implement strict mitigation strategies. We also provide insights into the effectiveness of the national and regional lockdown measures and the influence of socio-economic factors in the propagation of the virus.

Compensation and sacrifice in the probabilistic rationing of indivisible units

14 junio, 2021
12:00 pm

Título: Compensation and sacrifice in the probabilistic rationing of indivisible units

Ponente: Ricardo Martínez (Universidad de Granada)

Organizador: Joaquín Sánchez Soriano

Fecha: Lunes 14 de junio de 2021 a las 12:00 horas.

Lugar:  Online.

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Abstract: We consider the problem of randomly allocating indivisible units of a resource among agents with conflicting claims on the resource. In the two-agent case, we characterize three focal rules combining axioms reflecting principles of compensation and sacrifice: probabilistic uniform awards, probabilistic uniform losses and probabilistic concede-and-divide. In the general case of n agents, the two uniform rules are characterized adding the axiom of consistency. There is, however, no consistent extension of probabilistic concede-and-divide.

IA: nueva era en la protección

7 junio, 2021
12:00 pm

Título: IA: nueva era en la protección

Ponente: Isabel Ibarra (PADIMA). Responsable departamento de Innovación de Padima y Agente Europeo de Patentes

Organizador: Alejandro Rabasa

Fecha: Lunes 7 de junio de 2021 a las 12:00 horas.

Lugar:  Aulas 0.1 y 0.2 Edificio Torretamarit.

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Abstract: Análisis de la protección de la innovación en el campo de la Inteligencia Artificial desde una perspectiva práctica. Tendencias en la protección de la IA. Obstáculos y ventajas competitivas que nos ofrece el sistema de patentes en este campo y casos de éxito que nos ayudan a inspirarnos.

Breve bio Isabel Ibarra Responsable departamento de Innovación de Padima y Agente Europeo de Patentes

Mi formación como ingeniero, agente europeo de patentes y especialista en redacción de patentes me permite acompañar a las organizaciones innovadoras en el proceso de protección de sus invenciones a través de patente, modelo de utilidad, PCT, patente europea, etc.
Tras casi una década trabajando en este campo, estoy especializada en cómo proteger la innovación, concentrándonos en los aspectos técnicos que os diferencian respecto del Estado de la técnica existente.
Mi visión técnica también me permite recomendar un adecuado enfoque de la protección internacional de diseños y establecer una estrategia para usar la Propiedad Intelectual como una herramienta de defensa y marketing que, más allá de la Protección, otorgue valor al proyecto y/o a la organización.