Listar Institute of New Imaging Technologies (INIT) por título

Mostrando ítems 280-299 de 862

    • openAccess   Encoding complex fields by using a phase-only optical element 

      Mendoza-Yero, Omel; Mínguez-Vega, Gladys; Lancis, Jesús Optical Society of America (2014)
      We show that the amplitude and phase information from a two-dimensional complex field can be synthesized from a phase-only optical element with micrometric resolution. The principle of the method is based on the combination ...

    • openAccess   Encoding of arbitrary micrometric complex illumination patterns with reduced speckle 

      Carbonell Leal, Miguel; Mínguez-Vega, Gladys; Lancis, Jesús; Mendoza-Yero, Omel Optical Society of America (2019)
      In nonlinear microscopy, phase-only spatial light modulators (SLMs) allow achieving simultaneous two-photon excitation and fluorescence emission from specific regionof-interests (ROIs). However, as iterative Fourier ...

    • openAccess   Endmember Extraction From Hyperspectral Imagery Based on Probabilistic Tensor Moments 

      Fernandez-Beltran, Ruben; Pla, Filiberto; Plaza, Antonio Institute of Electrical and Electronics Engineers (2020-01-13)
      This letter presents a novel hyperspectral endmember extraction approach that integrates a tensor-based decomposition scheme with a probabilistic framework in order to take advantage of both technologies when uncovering ...

    • openAccess   Engineered Diffraction Gratings for Acoustic Cloaking 

      Jin, Yabin; Fang, Xinsheng; Li, Yong; Torrent, Daniel American Physical Society (2019)
      We show that engineered diffraction gratings can considerably simplify the design of acoustic ground cloaking devices. Acoustic reflecting gratings are designed in such a way that all the incident energy is channeled ...

    • openAccess   Enhancing In Vivo Exposure in the Treatment of Panic Disorder and Agoraphobia Using Location-Based Technologies: A Case Study 

      Miralles, Ignacio; Granell, Carlos; Díaz-García, Amanda; Castilla, Diana; González-Pérez, Alberto; Casteleyn, Sven; Bretón-López, Juana SAGE Publications (2020-04)
      Panic disorder (PD) is quite prevalent and often appears along with agoraphobia (PD/A). The treatment of choice is cognitive behavioral therapy (CBT). Transdiagnostic intervention, an emotion-focused, cognitive behavioral ...

    • openAccess   Enhancing integrated environmental modelling by designing resource-oriented interfaces 

      Granell, Carlos; Díaz Sánchez, Laura; Schade, Sven; Ostländer, Nicole; Huerta, Joaquin Elsevier (2013)
      Integrated environmental modelling is gaining momentum for addressing grand scientific challenges such as monitoring the environment for change detection and forecasting environmental conditions along with the consequences ...

    • closedAccess   Enhancing Integrated Indoor/Outdoor Mobility in a Smart Campus 

      Torres-Sospedra, Joaquín; Avariento, Joan; Rambla Risueño, David; Montoliu Colás, Raul; Casteleyn, Sven; Benedito-Bordonau, Mauri; Gould, Michael; Huerta, Joaquin Taylor & Francis (2015-11)
      A Smart City relies on six key factors: Smart Governance, Smart People, Smart Economy, Smart Environment, Smart Living and Smart Mobility. This paper focuses on Smart Mobility by improving one of its key components: ...

    • openAccess   Ensembling Multiple Radio Maps with Dynamic Noise in Fingerprint-based Indoor Positioning 

      Torres-Sospedra, Joaquín; Aranda Polo, Fernando Jesús; Álvarez, Fernando J.; Quezada Gaibor, Darwin; Silva, Ivo; Pendão, Cristiano; Moreira, Adriano Institute of Electrical and Electronics Engineers (2021-06-15)
      Fingerprint-based indoor positioning is widely used in many contexts, including pedestrian and autonomous vehicles navigation. Many approaches have used traditional Machine Learning models to deal with fingerprinting, ...

    • openAccess   Environment-Aware Regression for Indoor Localization based on WiFi Fingerprinting 

      Mendoza-Silva, Germán Martín; Costa, Ana Cristina; Torres-Sospedra, Joaquín; Painho, Marco; Huerta, Joaquin Institute of Electrical and Electronics Engineers (2021-04-19)
      Data enrichment through interpolation or regression is a common approach to deal with sample collection for Indoor Localization with WiFi fingerprinting. This paper provides guidelines on where to collect WiFi samples, and ...

    • closedAccess   Environmental service discovery based on semantically annotated OGC service descriptions 

      Larizgoitia, Iker; Toma, Ioan; Beltran Fonollosa, Arturo; Llaves, Alejandro; Maué, Patrick ACM (2013-03)
      Environmental information is a valuable resource for a wide range of applications and decision support systems in different domains. This is reflected in different initiatives around the world, such as the Open Geospatial ...

    • openAccess   Equicontinuity criteria for metric-valued sets of continuous functions 

      Ferrer González, María Vicenta; Hernández, Salvador; Tárrega Ruiz, Luis Elsevier (2017)
      Combining ideas of Troallic [1] and Cascales, Namioka, and Vera [2], we prove several characterizations of almost equicontinuity and hereditarily almost equicontinuity for subsets of metric-valued continuous functions ...

    • openAccess   Equilibrating the recognition of the minority Class in the imbalance context 

      Cleofás Sánchez, Laura; Camacho Nieto, Oscar; Sánchez Garreta, Josep Salvador; Yáñez Márquez, Cornelio; Valdovinos Rosas, Rosa María Naturals Publishing (2014-01)
      In pattern recognition, it is well known that the classifier performance depends on the classification rule and the complexities presented in the data sets (such as class overlapping, class imbalance, outliers, high-dimensional ...

    • closedAccess   Equivalence and orthogonality of Gaussian measures on spheres 

      Arafat, Ahmed; Porcu, Emilio; Bevilacqua, M.; Mateu, Jorge Elsevier (2018-09)
      The equivalence of Gaussian measures is a fundamental tool to establish the asymptotic properties of both prediction and estimation of Gaussian fields under fixed domain asymptotics. The paper solves Problem 18 in the list ...

    • openAccess   Equivalence of chatbot and paper-and-pencil versions of the De Jong Gierveld loneliness scale 

      Caballer Miedes, Antonio; Belmonte-Fernández, Óscar; Castillo, Andrea; Gascó, Arturo; Montoliu Colás, Raul Current Psychology (2020-10-13)
      Technological progress provides health professionals with an excellent opportunity to take advantage of these developments and contribute to the development of efficient ways of diagnosing, monitoring, treating and assisting ...

    • closedAccess   Erythrocyte shape classification using integral-geometry-based methods 

      Gual-Arnau, Ximo; Herold-García, Silena; Simó, Amelia Springer (2015)
      Erythrocyte shape deformations are related to different important illnesses. In this paper, we focus on one of the most important: the Sickle cell disease. This disease causes the hardening or polymerization of the hemoglobin ...

    • openAccess   Estimates of the first Dirichlet eigenvalue from exit time moment spectra 

      Hurtado, Ana; Markvorsen, Steen; Palmer Andreu, Vicente Springer Verlag (2016)
      We compute the first Dirichlet eigenvalue of a geodesic ball in a rotationally symmetric model space in terms of the moment spectrum for the Brownian motion exit times from the ball. As an application of the model space ...

    • openAccess   Estimating Space and Space-Time Covariance Functions for Large Data Sets: A Weighted Composite Likelihood Approach 

      Bevilacqua, M.; Gaetan, Carlo; Mateu, Jorge; Porcu, Emilio American Statistical Association (2012)
      In the last years there has been a growing interest in the construction space-time covariance functions. However, effective estimation methods for these models are some- how unexplored. In this paper we propose a composite ...

    • closedAccess   Estimation and prediction of time-varying GARCH models through a state-space representation: a computational approach 

      Ferreira, Guillermo; Navarrete Campos, Jean Paul; Rodríguez-Cortés, Francisco Javier; Mateu, Jorge Taylor & Francis (2017-06-05)
      We propose a state-space approach for GARCH models with time-varying parameters able to deal with non-stationarity that is usually observed in a wide variety of time series. The parameters of the non-stationary model are ...

    • openAccess   Estudio crítico de los índices de severidad y la superficie afectada por el incendio de Sierra de Luna (Zaragoza) 

      Guillem-Cogollos, R.; Vinué-Visús, D.; Caselles-Miralles, V.; Espinós-Morató, H. Asociación Española de Teledetección (2017)
      Para la determinación del área quemada y la severidad asociada del incendio de Sierra de Luna (Zaragoza), ocurrido el 4 de julio de 2015, se han calculado tres índices espectrales derivados de Landsat-8: NDVI, NBR y BAI. ...

    • openAccess   Estudio empírico del enfoque asociativo en el contexto de los problemas de clasificación 

      Cleofas Sánchez, Laura; Pineda Briseno, Anabel; Valdovinos Rosas, Rosa María; Sánchez Garreta, Josep Salvador; García, Vicente; Camacho Nieto, Oscar; Pérez Meana, Héctor; Nakano Miyatake, Mariko Centro de Investigacion en Computacion (CIC) del Instituto Politecnico Nacional (IPN) (2019)
      Research carried out by the scientific community has shown that the performance of the classifiers depends not only on the learning rule, if not also on the complexities inherent in the data sets. Some traditional classifiers ...