Search results for "tracking"

Movements of water rails from Norway-light-levels

2020

Lislevand T, Hahn S, Rislaa S, Briedis M. 2020. First records of complete annual cycles in water rails Rallus aquaticus show evidence of itinerant breeding and a complex migration system. J Avian Biol. doi:10.1111/jav.02595

Wireless Charging Systems for Electric Vehicle Batteries

2020

To successfully learn using open Internet resources, students must be able to critically search, evaluate and select online information, and verify sources. Defined as critical online reasoning (COR), this construct is operationalized on two levels in our study: (1) the student level using the newly developed Critical Online Reasoning Assessment (CORA), and (2) the online information processing level using event log data, including gaze durations and fixations. The written responses of 32 students for one CORA task were scored by three independent raters. The resulting score was operationalized as “task performance,” whereas the gaze fixations and durations were defined as indicators of “pr…

Target tracking with dynamically adaptive correlation

2016

Abstract A reliable algorithm for target tracking based on dynamically adaptive correlation filtering is presented. The algorithm is capable of tracking with high accuracy the location of a target in an input video sequence without using an offline training process. The target is selected at the beginning of the algorithm. Afterwards, a composite correlation filter optimized for distortion tolerant pattern recognition is designed to recognize the target in the next frame. The filter is dynamically adapted to each frame using information of current and past scene observations. Results obtained with the proposed algorithm in synthetic and real-life video sequences, are analyzed and compared w…

Development of a High Granularity Photovoltaic Model That Considers Complex Nonuniform Shadow Conditions and Different Cell Temperatures

2012

In this paper is the development of a high granularity photovoltaic model that considers complex nonuniform shadow conditions and different cell temperatures. The model integrates the nonuniform shading characteristics such as different areas for each cell, different direct and indirect solar irradiations for each cell, and different temperatures. The area of the shadow on the PV module is found using image processing. The bond graph formalism facilitates the representation of the energy exchange between the different parts of the PV module. This complexity justifies the effort to develop a high-granularity tool. The proposed model is validated through experimental tests under shading condi…

How Quickly Can We Predict Users’ Ratings on Aesthetic Evaluations of Websites? Employing Machine Learning on Eye-Tracking Data

2020

This study examines how quickly we can predict users’ ratings on visual aesthetics in terms of simplicity, diversity, colorfulness, craftsmanship. To predict users’ ratings, first we capture gaze behavior while looking at high, neutral, and low visually appealing websites, followed by a survey regarding user perceptions on visual aesthetics towards the same websites. We conduct an experiment with 23 experienced users in online shopping, capture gaze behavior and through employing machine learning we examine how fast we can accurately predict their ratings. The findings show that after 25 s we can predict ratings with an error rate ranging from 9% to 11% depending on which facet of visual ae…

On Gauss and Gaussian Legends: A Quiz

2018

For the last few years, students in my history of mathematics course have been required to do a bit of research on the web. Each of them chooses from a list of specially chosen questions designed to make them ponder whether the information they find on standard internet sites is solidly grounded and clearly sourced, or whether subsequent research (pursued in such unlikely places as the local university library) might lead a person to doubt what one reads online. The idea here is not to push for a definitive answer; in many cases, this would be a hopeless undertaking anyway. Instead, I ask students merely to report on what they found and how they went about tracking down the information cite…

CSR communication through social media: a neurophysiological and self-reported perspective

2022

La Responsabilidad Social Corporativa (RSC) se está reconsiderando como un elemento crucial en las estrategias de posicionamiento y promoción de las empresas. De hecho, compite en importancia con la calidad del producto o servicio a la hora de construir una imagen de marca y comunicarla a los stakeholders, en especial a los clientes. Las empresas de estos sectores han encontrado en las redes sociales un medio directo, accesible e interactivo para plasmar sus iniciativas de RSC. El objetivo general de este proyecto de tesis es profundizar en las particularidades de la comunicación de la RSC a través de las redes sociales en el sector hotelero y de restauración. Se busca conocer cómo afecta l…

In-beam test results of the Super-FRS GEM-TPC detector prototype with relativistic uranium ion beam

2023

As an essential part of the Super-FRS particle identification, the GEM-TPC detector in a twin field-cage configuration will provide position information at up to 1 MHz counting rate with a spatial resolution 95 %. This detector is designed to provide particle-beam tracking information of projectiles ranging from protons to uranium. The performance of the GEM-TPC detector in a single field-cage configuration and newly integrated AWAGS readout electronics with a differential output was studied at the FRS for the response to the uranium beam at 850 MeV/u with intensity up to 1000 ions/spill. The result shows that a clusterization algorithm developed for this analysis works properly. The spatia…

RScriptsCommonRosefinch

2021

Lisovski S, Neumann R, Albrecht T, Munclinger P, Ahola M, Bauer S, Cepak J, Fransson T, Jakobsson S, Jaakkonen T, Klvana P, Kullberg C, Laaksonen T, Metzger B, Piha M, Shurulinkov P, Stach R, Strom K, Velmala W, Briedis M. 2021. The Indo-European Flyway: opportunities and constraints reflected by common rosefinches breeding across Europe. J Biogeogr. doi:10.1111/jbi.14085