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Speeding up the log-polar transform with inexpensive parallel hardware: graphics units and multi-core architectures
(Springer-Verlag, 2012)
Log-polar imaging is a kind of foveal, biologically inspired visual representation with advantageous properties in practical applications in computer vision, robotics, and other fields. While the cheapest, most flexible, ...
Bag-of-words with aggregated temporal pair-wise word co-occurrence for human action recognition
(Elsevier, 2014)
The bag-of-words (BoW) representation has successfully been used for human action recognition from
videos. However, one limitation of the standard BoW is that it ignores spatial and temporal relationships
between the ...
Femtosecond laser micromachining with extended depth of focus by using diffractive lenses
(Elsevier, 2014-06-01)
We show that a simple diffraction focusing element can alleviate mechanical tolerances in ultrafast laser microprocessing. In particular, we experimentally demonstrate that, in comparison with a conventional refractive ...
A bias correction function for classification performance assessment in two-class imbalanced problems
(Elsevier, 2014)
This paper introduces a framework that allows to mitigate the impact of class imbalance on most scalar performance measures when used to evaluate the behavior of classifiers. Formally, a correction function is defined with ...
Space-time autoregressive estimation and prediction with missing data based on Kalman filtering
(Wiley, 2020-11)
We propose a Kalman filter algorithm to provide a formal statistical analysis of space‐time data with an autoregressive structure in time. The Kalman filter technique allows to capture the temporal dependence as well as ...
Contextual contact tracing based on stochastic compartment modeling and spatial risk assessment
(Springer, 2021-10-26)
The current situation of COVID-19 highlights the paramount importance of infectious disease surveillance, which
necessitates early monitoring for effective response. Policymakers are interested in data insights identifying ...
Spatial pattern modelling of wildfires in Catalonia, Spain 2004–2008
(Elsevier, 2013)
The paper has three objectives: firstly, to evaluate how the extent of clustering in wildfires differs across the years they occurred; secondly, to analyse the influence of covariates on trends in the intensity of wildfire ...
Temporal Distribution and Weather Correlates of Norway Rat (Rattus norvegicus) Infestations in the City of Madrid, Spain
(Springer Verlag, 2013)
Urban Norway rats are challenging pests, posing significant health and economic threats. Implementing
ecologically based integrated rodent management (EBIRM) programmes relies primarily on the
understanding of ecological ...
Mapping the intensity function of a non-stationary point process in unobserved areas
(Springer, 2022)
Seismic networks provide data that are used as basis both for public safety decisions and for scientific research. Their configuration affects the data completeness, which in turn, critically affects several seismological ...
A Kalman filter method for estimation and prediction of space–time data with an autoregressive structure
(Elsevier, 2019-03)
We propose a new Kalman filter algorithm to provide a formal statistical analysis of space–time data with an autoregressive structure. The Kalman filter technique allows to capture the temporal dependence as well as the ...