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Study of Convolutional Neural Networks for Global Parametric Motion Estimation on Log-Polar Imagery
Institute of Electrical and Electronics Engineers (2020-08-12)The problem of motion estimation from images has been widely studied in the past. Although many mature solutions exist, there are still open issues and challenges to be addressed. For instance, in spite of the well-known ... -
Subgroups of direct products closely approximated by direct sums
De Gruyter (2017-09)Let I be an infinite Π set, fGi : i 2 Ig be a family of (topological) groups and G = i∈I Gi be its direct product. For J I, pJ : G ! Π j∈J Gj denotes the projection. We say that a subgroup H of G is: (i) uniformly ... -
Substationarity for spatial point processes
Elsevier Inc. (2019-05)This article aims to introduce the concept of substationarity for spatial point processes (SPPs). Substationarity is a new concept that has never been studied in the literature. Substationarity means that the distribution ... -
Sucre4Stem: Collaborative Projects Based on IoT Devices for Students in Secondary and Pre-University Education
IEEE (2022-04-12)This paper describes a new technological evolution of the Sucre project, which aims to foster a vocation for science and develop computational thinking and programming skills in pre-university students. This improved version ... -
Supervised classification of geometrical objects by integrating currents and functional data analysis
Springer Verlag (2019)This paper focuses on the application of supervised classification techniques to a set of geometrical objects (bodies) characterized by currents, in particular, discriminant analysis and some nonparametric methods. A current ... -
Supporting Connectivism in Knowledge Based Engineering with Graph Theory, Filtering Techniques and Model Quality Assurance
Elsevier (2018-10)Mass-customization has forced manufacturing companies to put significant efforts to digitize and automate their engineering and production processes. When new products are to be developed and introduced the production is ... -
Surrounding neighborhood-based SMOTE for learning from imbalanced data sets
Springer (2012)Many traditional approaches to pattern classifi- cation assume that the problem classes share similar prior probabilities. However, in many real-life applications, this assumption is grossly violated. Often, the ratios ... -
Survey of Decentralized Solutions with Mobile Devices for User Location Tracking, Proximity Detection, and Contact Tracing in the COVID-19 Era
MDPI (2020-09-23)Some of the recent developments in data science for worldwide disease control have involved research of large-scale feasibility and usefulness of digital contact tracing, user location tracking, and proximity detection ... -
Synergetic Application of Multi-Criteria Decision-Making Models to Credit Granting Decision Problems
(2019-11-22)Although various algorithms have widely been studied for bankruptcy and credit risk prediction, conclusions regarding the best performing method are divergent when using different performance assessment metrics. As a ... -
Synthesis of fractal light pulses by quasi-direct space-to-time pulse shaping
Optical Society of America (2012)We demonstrated a simple diffractive method to map the self-similar structure shown in squared radial coordinate of any set of circularly symmetric fractal plates into self-similar light pulses in the corresponding temporal ... -
Synthesis of High Entropy Alloy Nanoparticles by Pulsed Laser Ablation in Liquids: Influence of Target Preparation on Stoichiometry and Productivity
Wiley (2024-03-26)High entropy alloys (HEAs) have a wide range of applications across various fields, including structural engineering, biomedical science, catalysis, magnetism, and nuclear technology. Nanoscale HEA particles show promising ... -
Synthetic content generation for auto-stereoscopic displays
Springer (2014)Due to the appearance of auto-stereoscopic visualization as one of the most emerging tendencies used in displays, new content generation techniques for this kind of visualization are required. In this paper we present a ... -
Tailoring the Bactericidal Activity of Ag Nanoparticles/α-Ag2WO4 Composite Induced by Electron Beam and Femtosecond Laser Irradiation: Integration of Experiment and Computational Modeling
American Chemical Society (2019)In nanotechnology research, significant effort is devoted to fabricating patterns of metallic nanoparticles on the surfaces of different semiconductors to find innovative materials with favorable characteristics, such as ... -
Tailoring the spatio-temporal distribution of diffractive focused ultrashort pulses through pulse shaping
Optical Society of America (2018)Focusing control of ultrashort pulsed beams is an important research topic, due to its impact to subsequent interaction with matter. In this work, we study the propagation near the focus of ultrashort laser pulses of ~25 ... -
Teachers as Designers of Formative e-Rubrics: A Case Study on the Introduction and Validation of Go/No Go Criteria
Springer Verlag (2019-07-18)Information and Communications Technologies (ICTs) offer new roles to teachers to improve learning processes. In this regard, learning rubrics are commonplace. However, the design of these rubrics has focused mainly ... -
Team activity recognition in Association Football using a Bag-of-Words-based method
Elsevier (2015-06)In this paper, a new methodology is used to perform team activity recognition and analysis in Association Football. It is based on pattern recognition and machine learning techniques. In particular, a strategy based on the ... -
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 ... -
Ten Years of Rich Internet Applications: A Systematic Mapping Study, and Beyond
Digital Library (2014-06)BACKGROUND: The term Rich Internet Applications (RIAs) is generally associated with Web appli- cations that provide the features and functionality of traditional desktop applications. Ten years after the introduction of ... -
Testing first-order spherical symmetry of spatial point processes
Institute of Statistical Science, Academia Sinica & International Chinese Statistical Association (2020)This study proposes a Kolmogorov-Smirnov-type test to assess the spherical symmetry of the first-order intensity function of a spatial point process (SPP). Spherical symmetry, which is an important assumption in the well ... -
Testing for local structure in spatiotemporal point pattern data
Wiley (2017-09-03)The detection of clustering structure in a point pattern is one of themain focuses of attention in spatiotemporal data mining. Indeed, statistical tools for clustering detection and identification of individual events ...