Spikol D.,Malmö University |
Worsley M.,Northwestern University |
Prieto L.P.,Tallinn University |
Ochoa X.,ESPOL |
And 2 more authors.
ACM International Conference Proceeding Series | Year: 2017
Multimodal Learning Analytics (MMLA) captures, integrates and analyzes learning traces from different sources in order to obtain a more holistic understanding of the learning process, wherever it happens. MMLA leverages the increasingly widespread availability of diverse sensors, highfrequency data collection technologies and sophisticated machine learning and artificial intelligence techniques. The aim of this workshop is twofold: first, to expose participants to, and develop, different multimodal datasets that reflect how MMLA can bring new insights and opportunities to investigate complex learning processes and environments; second, to collaboratively identify a set of grand challenges for further MMLA research, built upon the foundations of previous workshops on the topic. © 2017 ACM.
Savazzi S.,CNR Institute of Neuroscience |
Ramos B.,ESPOL |
Winter J.M.,CNR Institute of Neuroscience |
Kianoush S.,CNR Institute of Neuroscience |
And 4 more authors.
2016 8th IEEE Latin-American Conference on Communications, LATINCOM 2016 | Year: 2016
Industry 4.0 and industrial Internet of Things (iIoT) trends are pushing towards the transformation of factories to provide more flexible production systems through the use of wireless networks. Technologies enabling the 'Factory-of-Things' (FoT) paradigm allow the safe deployment of wireless field devices in industrial plants thanks to their low-battery usage that makes the maintenance cycle quite low, and highly reliable. The widespread adoption of these technologies should be paired with tools for predeployment network design and prediction of the wireless link quality to mimic the planning procedures applied to conventional industrial wired equipment. In factory sites, the strength of the radio signals is impaired by frequency, spatial and time-domain fading that influence the wireless link stability. In this paper, based on an extensive measurement campaign performed inside an active oil refinery, we propose and validate a novel channel model tailored for industrial wireless networks operating over 2.4 GHz and supporting a time-slotted channel hopping (TSCH) policy. Post-layout network performance verification has been finally carried out based on a WirelessHART industry standard system deployed in selected sites. © 2016 IEEE.
Campuzano F.J.,University of Lisbon |
Mateus M.D.,University of Lisbon |
Leitao P.C.,Hidromod |
Leitao P.C.,University of Lisbon |
And 7 more authors.
Ocean and Coastal Management | Year: 2013
The management of coastal systems where overlapping economic interests compete for the same resources make the use of integrated approaches indispensable. The Integrated Coastal Zone Management (ICZM) focuses mainly on three major goals: (1) overcoming the conflicts associated with the sectorial management, (2) preserving the productivity and biological diversity of coastal systems, and (3) promoting and equitable and sustainable allocation of coastal resources. The DPSIR (Drivers-Pressures-State-Impact-Responses) framework is a common tool that allows the description of environmental problems by defining the relationships between anthropogenic activities and the environment. In this context, the use of numerical models as integrative tools in ICZM has grown significantly over the years. This work focused on three estuarine systems in South America: Santos estuary (Brazil, 24° S) and Bahía Blanca estuary (Argentina, 39° S) in the Atlantic coast and Aysén fjord (Chile, 45°S) in the Pacific coast. These estuaries differ significantly in their physical, chemical and biological conditions, as well as on their socio-economic settings and human-related problems. Numerical models have been used to study the relation between the pressures derived from human activities and their impact on the state of each system. The results presents a contribute to increase the scientific knowledge needed to support the implementation of local legislations and policies, to assess different scenarios of coastal activities and sources use, to support management decisions and, ultimately, to promote sustainable of coastal resources. © 2011 Elsevier Ltd.
Dumont J.F.,ESPOL |
Dumont J.F.,IRD Montpellier |
Santana E.,ESPOL |
Bonnardot M.-A.,French National Center for Scientific Research |
And 4 more authors.
Geological Society Memoir | Year: 2014
The pacific border of the South American plate presents a more or less symmetrical sinuosity, with a central concave curvature (the Arica Angle located between two side rays along Chile and Peru) and ending in convex arcs (the Patagonian and Talara arcs, respectively). The width of the continental and coastal margins varies significantly according to the geometry of the border. The continental margin of Ecuador corresponds to the northern part of the Talara Arc. Three different segments showing different coastal geomorphology and continental platform characteristics are identified from north to south: the northern segment (Mataje River-Galera Point) shows a wide continental shelf and slope, the upper subducted slab of the subduction plane presents a low dip; the central segment (Galera Point- Santa Elena) stands in front of the Carnegie Ridge, and presents a moderate uplift in the Manta Peninsula, in front of the Carnegie Ridge, and the upper subduction plane is subhorizontal; the southern segment includes the side and inner coasts of the Gulf of Guayaquil, below the gulf the subduction plane shows a low dip. A comparison with published 3D numerical modelling of curved subduction suggests that the geometry of the continental boundary has a significant effect on uplift or subsidence along the continental margin. Also, the subduction of asperities in the trench, such as the Carnegie Ridge, may change the coastal motion from subsiding to uplifting, as is observed in the Esmeraldas area. There is no clear evidence of a shelf developed during the Last Glacial Maximum (LGM) sea-level lowstand, probably due to the vertical motion - uplift or subsidence - observed all along the coastal margin. © The Geological Society of London 2014.
Munoz J.A.,ESPOL Polytechnic University |
Calero V.,ESPOL |
Marin I.,ESPOL |
Chavez P.,ESPOL |
Perez R.,University of Las Palmas de Gran Canaria
IEEE Latin America Transactions | Year: 2015
In this paper we explore the implementation of a dynamic emergency system. The proposed system uses the already implemented sensors and cameras, supplemented with task oriented sensors, in a Distributed/Wireless Sensor Networks (DSN/WSN) architecture to gain knowledge of the building environment conditions such as fires, gas leaks, corridors usage among others. With the collected information, the system, by using routing algorithms, will generate, dynamically, the best routes to evacuate the premises. The route generation takes into consideration not only the data provided by the sensors but also the nature of the emergency. This approach avoids or minimize potential risk from, for example, stored goods or the, current, status of the emergency exits, maximizing the number of routes so the evacuation of attendees and ingress of emergency personal can be done in the safest and fastest way possible. The system will inform about the egress routes and ingress routes thought the use of dynamic visible signs. In order to clarify and illustrate the proposed solution a case study for a sport stadium is also presented. © 2003-2012 IEEE.
2011 IEEE Conference on Technologies for Practical Robot Applications, TePRA 2011 | Year: 2011
This paper describes the design and construction of a Low Cost Autonomous Underwater Vehicle prototype for Antarctic Exploration to use it in the Ecuadorian Expedition to the Scientific Base Pedro Vicente Maldonado in Antarctica. This AUV can work as a platform to transport scientific payload in a determined path. The AUV length is less than 2m. Results of some systems of the AUV from laboratory, sea trials and Antarctic environment are show. © 2011 IEEE.
Duval E.,Catholic University of Leuven |
Verbert K.,Catholic University of Leuven |
Klerkx J.,Catholic University of Leuven |
Wolpers M.,Fraunhofer Institute for Applied Information Technology |
And 5 more authors.
ACM International Conference Proceeding Series | Year: 2015
In this paper, we briey describe the goal and activities of the LAK15 workshop on Visual Aspects of Learning analyt-ics. © Copyright 2015 ACM.
Zambrano-Monserrate M.A.,ESPOL |
Valverde-Bajana I.,ESPOL |
Aguilar-Bohorquez J.,ESPOL |
International Journal of Energy Economics and Policy | Year: 2016
This study investigates the relationship between CO2 emissions, economic growth, energy use and electricity production by hydroelectric sources in Brazil. To verify the environmental Kuznets curve (EKC) hypothesis we use time-series data for the period 1971-2011. The autoregressive distributed lag methodology was used to test for cointegration in the long run. Additionally, the vector error correction model Granger causality test was applied to verify the predictive value of independent variables. Empirical results find that there is a quadratic long run relationship between CO2 emissions and economic growth, confirming the existence of an EKC for Brazil. Furthermore, energy use shows increasing effects on emissions, while electricity production by hydropower sources has an inverse relationship with environmental degradation. The short run model does not provide evidence for the EKC theory. The differences between the results in the long and short run models can be considered for establishing environmental policies. This suggests that special attention to both variables -energy use and the electricity production by hydroelectric sources- could be an effective way to mitigate CO2 emissions in Brazil. © 2016, Econjournals. All rights reserved.
Zambrano-Monserrate M.A.,ESPOL |
Garcia-Alban F.F.,ESPOL |
International Journal of Energy Economics and Policy | Year: 2016
This paper provides empirical evidence of a long-run environmental Kuznets curve (EKC) for Ecuador from 1971 to 2011. Using the autoregressive distributed lag bounds testing approach, we do not just estimate the effect of economic growth on carbon dioxide emissions but also the effect of energy consumption on this one. The effects of all variables have the expected signs. In addition, we test for granger causality among the variables using an error correction model. Only gross domestic product granger causes energy consumption in the short-run. The results have several policy implications that are consistent with the recent environmental policy of the government. © 2016, Econjournals. All rights reserved.
Marin Jarrin J.R.,ESPOL Polytechnic University |
Mino Quezada S.L.,ESPOL Polytechnic University |
Dominguez-Granda L.E.,ESPOL Polytechnic University |
Guartatanga Argudo S.M.,ESPOL |
De Grunauer M.D.P.C.R.,ESPOL Polytechnic University
Marine and Freshwater Research | Year: 2016
Temperate and subtropical sandy beach surf zones present diverse and abundant fauna that are important in local food webs. However, dynamics of these fauna have been poorly studied in tropical areas. The aims of the present study were to describe the small swimming surf-zone fauna (∼1-5mm in length) of two Ecuadorian sandy beaches, determine whether this fauna varies with beach, season or tide, and explore the environmental factors correlated with faunal variability. Beaches were sampled in wet and dry seasons during high, mid- and low tide (2001-2002) by using a hyperbenthic sledge. Beaches were inhabited by an abundant and diverse fauna (>1200 individuals per 100m2 and >30 taxa), where most individuals were in their early life stages (65%), and the dominant taxa included mysid shrimp (>40% of individuals) and fish and crab larvae (>25 taxa). Composition of groups that are present during their entire life or only early life stages varied most strongly between beaches, potentially because of differences in wave exposure and the influence of an adjacent river, and between seasons with changes in coastal oceanic currents. These results suggest that despite the environmental stability often portrayed for tropical environments, Ecuadorian surf-zone fauna are spatially and temporally variable. © CSIRO 2016.