Listar INIT_Congressos i Informes por título
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Local-level Analysis of Positioning Errors in Wi-Fi Fingerprinting
IEEE (2021-04-25)Nowadays, Location Based Services run over a net of heterogeneous devices (mainly smartphones) with different location capabilities thanks to, for instance, signals of opportunity as Wi-Fi. In contrast to professional ... -
Locations Selection for Periodic Radio Map Update in WiFi Fingerprinting
Springer (2018)The construction and update of a radio map are usually referred as the main drawbacks of WiFi fingerprinting, a very popular method in indoor localization research. For radio map update, some studies suggest taking new ... -
Lossy Compression Methods for Performance-Restricted Wearable Devices
CEUR Workshop Proceedings (2020)With the increasing popularity, diversity, and utilization of wearable devices, the data transfer-andstorage efficiency becomes increasingly important. This paper evaluates a set of compression techniques regarding their ...
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Magnetic Field as a Characterization of Wide and Narrow Spaces in a Real Challenging Scenario Using Dynamic Time Warping
Institute of Electrical and Electronics Engineers (2018-11-15)This paper presents a study of indoor positioning in public zones of the Parc Taulí Hospital in Sabadell. It is a challenging scenario because: (1) it combines wide spaces with middle sized and narrow spaces; (2) it is a ...
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Magnetic field based Indoor positioning using the Bag of Words paradigm
Institute of Electrical and Electronics Engineers (2016-11-17)In this paper, A Bag of Words based method is presented to test a magnetic field based indoor positioning method. The Indoor positioning problem is solved as a pattern recognition problem, where each reference point is a ...
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Mejorar la destreza matemática con un videojuego de Realidad Aumentada
CEUR Workshop Proceedings (CEUR-WS.org) (2020)The traditional method of learning multiplication tables is a repetitive and boring task. Teachers try to find new methods to motivate children in this learning. One of the lines to keep in mind it is to integrate ...
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Mobile Access to Sensor Network: A Use Case on Wildfire Monitoring
Springer International Publishing (2014)These networks provide large volumes of data in many different formats, resolution and scales. The data are of different types and character: from meteorological conditions to air quality and the concentrations of pollutants ...
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Model Selection for Financial Distress Prediction by Aggregating TOPSIS and PROMETHEE Rankings
Springer International Publishing (2016)Many models have been explored for financial distress prediction, but no consistent conclusions have been drawn on which method shows the best behavior when different performance evaluation measures are employed. Accordingly, ...
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Modeling excess weight in Spain by using deterministic and random differential equations
Universitat Politècnica de València (2021-07-14)In this work, the aim is to model the data from the Spanish National Health Survey (ENSE) 2017, which gathers the percentage of overweight and obese adults in Spain from 1987 to 2017. A compartmental system of differential ...
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Modeling Reconfigurable Intelligent Surfaces-aided Directional Communications for Multicast Services
Institute of Electrical and Electronics Engineers, IEEE (2022)According to the 6G vision, the evolution of wireless communication systems will soon lead to the possibility of supporting Tbps communications, as well as satisfying, individually or jointly, a plethora of other very ...
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Monitorización de datos de calidad de aire
Infraestructura de Datos Espaciales de España (IDEE) (2012-10)Cada vez más somos testigos del despliegue de redes de sensores que miden el estado del entorno en el que vivimos. Estas redes aportan grandes volúmenes de información en formatos y escalas muy diversas. Encontramos ...
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Multiresolution Foliage Rendering
CEUR Workshop Proceedings (CEUR-WS.org) (2020)This work presents a continuous level of detail representation of foliage of trees. Multiresolution modeling allows to adapt the number of polygons to render to the relevance of the object in the scene. However, foliage ...
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New Cluster Selection and Fine-grained Search for k-Means Clustering and Wi-Fi Fingerprinting
IEEE (2020-06-02)Wi-Fi fingerprinting is a popular technique for Indoor Positioning Systems (IPSs) thanks to its low complexity and the ubiquity of WLAN infrastructures. However, this technique may present scalability issues when the ...
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On the application of model-based definition strategies to the delivery of technical training
American Society of Mechanical Engineers (2017-06-08)The application of computer technology to engineering and manufacturing domains has drastically transformed the way products and systems are designed and produced. However, a major drawback of CAD/CAM/CAE systems is the ...
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Optimal Receivers Location for Passive Indoor Positioning based on BLE
CEUR Workshop Proceedings (2021-11)Indoor Positioning Systems are attracting many researchers, being Bluetooth Low Energy gaining some attention recently. The recent need to track people, ensuring low density of people in some areas, made the research ...
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Perimeter detection in sketched drawings of polyhedral shapes
The Eurographics Association (2017)This paper describes a new “envelope” approach for detecting object perimeters in line-drawings vectorised from sketches of polyhedral objects. Existing approaches for extracting contours from digital images are unsuitable ...
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Photogrammetry workflow for obtaining low-polygon 3D models using free software
Union Agency (2023)This paper proposes a workflow for inexperienced designers to create low-poly 3D models using free software. It addresses the problem of the complexity generated by photogrammetry. The solution aims to enable independent ...
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Predicting Student Performance with Virtual Resources Interaction Data
Springer (2023)E-learning can be able to act where traditional education cannot, thanks to its ease of interaction with virtual resources. In this work, the possibility of predicting the final outcome of students based solely on their ...
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Privacy in Indoor Positioning Systems: A Systematic Review
IEEE (2020)This article presents a systematic review of privacy in indoor positioning systems. The selected 41 articles on location privacy preserving mechanisms employ non-inherently private methods such as encryption, k-anonymity, ...
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El proyecto ERMES: Servicios de seguimento del cultivo de arroz basados en una IDE
Centro Nacional de Información Geográfica (2014-11)En los tiempos actuales, ante el aumento de la demanda de alimentos, el incremento del precio de ellos y la adopción de nuevas técnicas para la agricultura, es más importante la optimización ...
