Evolución temática de las publicaciones sobre Numismática Antigua de Hispania entre 1941 y 2010

This paper presents a quantification of the studies published from 1941 to 2010 on the Ancient Numis- matics of the Iberian Peninsula. The data come from Bibliografía Numismática de Hispania Antigua database. The studies have been grouped into seventeen subject matters; we analyze the evolution of each one of them and their expectations for the future

EL ENVEJECIMIENTO DE LA POBLACIÓN Y SUS REPERCUSIONES EN EL ESPACIO URBANO DE LA CIUDAD DE ZARAGOZA

El proceso de envejecimiento es un hecho constatable en el espacio urbano de Zaragoza, aunque el grado de afección del fenómeno es diferente en uno u otro de los distritos que lo componen. Así en un marco geográfico como el propuesto, cada una de sus unidades administrativas o censales ofrece un patrón determinado, que se refleja en su estructura demográfica, y conforma su espacio urbano de una forma diferente. El análisis diferenciado de este hecho es el objeto de este trabajo, en un ejercicio que pretende estudiar las múltiples parcelas en las que se manifiesta el proceso de envejecimiento, desde el puramente demográfico hasta su repercusión en las características de los hogares o en los diferentes servicios y el equipamiento urbano. En definitiva nuestro estudio ofrece un análisis del envejecimiento demográfico de la ciudad de Zaragoza, del grado de afección en sus diferentes distritos y de la relación de este proceso con el espacio en donde se desarrolla. Un fenómeno generalizado en las sociedades industriales pero que reviste características particulares en función del espacio de estudio.Abstract. The aging process is a verifiable fact in the urban space of Zaragoza, but the degree of disorder of the phenomenon is different in either of its districts that comprise it. So in a analysis as proposed, each of its administrative or census units provides a model that is reflected in its demographic structure, and forms its urban space in different ways. The separate analysis of this is the subject of this work, in an exercise that aims to study the multiple areas where aging process is manifested, from the purely demographic way to its impact on household characteristics or different services and urban facilities. Definitively our study provides an analysis of the aging process in the population of the city of Zaragoza, the degree of involvement in the different districts and the relation of this process with the space in which it develops. Widespread in industrial societies but which has unique characteristics in terms of studio space

Video Camera Identification from Sensor Pattern Noise with a Constrained ConvNet

The identification of source cameras from videos, though it is a highly relevant forensic analysis topic, has been studied much less than its counterpart that uses images. In this work we propose a method to identify the source camera of a video based on camera specific noise patterns that we extract from video frames. For the extraction of noise pattern features, we propose an extended version of a constrained convolutional layer capable of processing color inputs. Our system is designed to classify individual video frames which are in turn combined by a majority vote to identify the source camera. We evaluated this approach on the benchmark VISION data set consisting of 1539 videos from 28 different cameras. To the best of our knowledge, this is the first work that addresses the challenge of video camera identification on a device level. The experiments show that our approach is very promising, achieving up to 93.1% accuracy while being robust to the WhatsApp and YouTube compression techniques. This work is part of the EU-funded project 4NSEEK focused on forensics against child sexual abuse.Comment: Paper Accepted in - 10th International Conference on Pattern Recognition Applications and Methods (ICPRAM 2021

Observaciones sobre la sintaxis del espanglish

Se abordan en este trabajo cuestiones relacionadas con las características sintácticas más destacables del espanglishFFI2017-84951-PThis paper addresses issues related to the most salient syntactic features of Spanglis

Device-based image matching with similarity learning by convolutional neural networks that exploit the underlying camera sensor pattern noise

One of the challenging problems in digital image forensics is the capability to identify images that are captured by the same camera device. This knowledge can help forensic experts in gathering intelligence about suspects by analyzing digital images. In this paper, we propose a two-part network to quantify the likelihood that a given pair of images have the same source camera, and we evaluated it on the benchmark Dresden data set containing 1851 images from 31 different cameras. To the best of our knowledge, we are the first ones addressing the challenge of device-based image matching. Though the proposed approach is not yet forensics ready, our experiments show that this direction is worth pursuing, achieving at this moment 85 percent accuracy. This ongoing work is part of the EU-funded project 4NSEEK concerned with forensics against child sexual abuse.Comment: 7 pages, 4 figures, conference pape