Browsing by Issue Date, starting with "2016-12-06"
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- Hardware and software platforms to deploy and evaluate non-intrusive load monitoring systemsPublication . Pereira, Amâncio Lucas de Sousa; Nunes, Duarte Nuno Jardim; Bergés González, Mario E.The work in this PhD thesis addresses the practical implications of deploying and testing Non-Intrusive Load Monitoring (NILM) and eco-feedback solutions in real-world scenarios. The contributions to this topic are centered around the design and development of NILM frameworks that have been deployed in the wild, supporting long-term research in ecofeedback and also serving the purpose of producing real-world datasets and furthering the state of the art regarding the performance metrics used to evaluate NILM algorithms. This thesis consists of three main parts: i) the development of tools and datasets for NILM and eco-feedback research, ii) the design, implementation and deployment of NILM and eco-feedback technologies in real world scenarios, and iii) an experimental comparison of performance metrics for event detection and event classification algorithms. In the first part we describe the Energy Monitoring and Disaggregation Data Format (EMD-DF) and the SustData and SustDataED public datasets. In second part we discuss the development and deployment of two hardware and software platforms in real households, to support eco-feedback research. We then report on more than five years of experience in deploying and maintaining such platforms. Our findings suggest that the main practical issues can be divided in two categories, technological (e.g., system installation) and social (e.g., maintaining a steady sample throughout the whole study). In the final part of this thesis we analyze experimentally the behavior of a number of performance metrics for event detection and event classification, identifying clusters and relationships between the different measures. Our results evidence some considerable differences in the behavior of the performance metrics when applied to the different problems.
- Designing applications for bigger multi-touch displaysPublication . Leão, Hugo Daniel Vasconcelos Pestana; Nóbrega, Leonel Domingos TeloThis project intended to create a relevant application for the users of the Madeira Airport. They needed new ways of communication and interaction with their passengers. It could have been developed an application for a mobile device, such as a smartphone or a tablet that would allow the users of the Airport to communicate and interact with it differently. However, they had these bigger multi-touch devices, also known as kiosks that were not being used to their fullest potential. With that, it was given the task to make better use of these bigger devices, and develop the application for it. Upon starting the project, the first challenge that appeared was a clear lack of standardization when it comes to designing applications for these bigger multi touch devices. Besides the lack of standardization, there is not a lot of user experience. It cannot be expected that the user will transition easily, nor smoothly, from the common touch devices (smartphones and tablet) to a touch platform of bigger dimensions. The touch technology is not something out of the ordinary nowadays, nor is for the user to interact using this so called natural way, so some of the experience from the smaller devices can be reused, but the interaction with kiosks has to be carefully designed, because all of its limitations need to be taken into account. In particular the biggest limitation of these kiosks was the surface of the screen. It created a lot of friction therefore not allowing easy drag gestures. There is also the actual size factor of the device itself. Working on a bigger scale brought up important and interesting interaction design aspects that had to be solved. This document describes all the design work done for the kiosk application. It covers the methods and the decisions that were made so that all the work done for it can replicated and applied to other projects. From user interfaces to interaction design, different screen modes, graphical development and some programming, everything is explained throughout this document.