65 documents found, page 1 of 7
Machine learning ground motion model for stable continental regions: The Lisbon...
Costa, Óscar da Silva; Marinho Reis, A. Paula; Menezes, Raquel; Esteves, Marco[Excerpt] Earthquakes remain among the most destructive natural hazards, affecting over 100 million people globally in 2020. Lisbon, Portugal, located within a Stable Continental Region (SCR) and historically impacted by the 1755 earthquake, has advanced in seismic microzonation and engineering-based hazard modeling. However, these approaches, primarily developed for structural design, offer limited applicabili...
Joint model for zero-inflated data combining fishery-dependent and fishery-inde...
Silva, Daniela; Menezes, Raquel; Araújo, Gonçalo; Rosa, Renato; Moreno, Ana; Silva, Alexandra; Garrido, SusanaAccurately identifying spatial patterns of species distribution is crucial for scientific insight and societal benefit, aiding our understanding of species fluctuations. The increasing quantity and quality of ecological datasets present heightened statistical challenges, complicating spatial species dynamics comprehension. Addressing the complex task of integrating multiple data sources to enhance spatial fish ...
Joint model for zero-inflated data combining fishery-dependent and fishery-inde...
Silva, Daniela; Menezes, Raquel; Araújo, Gonçalo; Rosa, Renato; Moreno, Ana; Silva, Alexandra; Garrido, SusanaAccurately identifying spatial patterns of species distribution is crucial for scientific insight and societal benefit, aiding our understanding of species fluctuations. The increasing quantity and quality of ecological datasets present heightened statistical challenges, complicating spatial species dynamics comprehension. Addressing the complex task of integrating multiple data sources to enhance spatial fish ...
Harnessing information processing theory: key organizational initiatives for di...
Takagi, Nilton; Menezes, Raquel; Varajão, João; Faria, SusanaPurpose: Digital transformation (DT) is connected to how information technologies (IT) can be harnessed to address organizational needs and leverage business opportunities. DT projects are complex endeavors, and IT is just one aspect to manage. Other crucial elements include people, information, business processes, organizational capability and organizational culture. Embedding IT into an organization over poor...
Geostatistical models for identifying juvenile fish hotspots in marine conserva...
Menezes, Raquel; Gonçalves, Francisco; Silva, Daniela; Dias, Inês; Silva, Alexandra A.Species distribution models play a pivotal role in the management and conservation of commercially significant marine species. This work focuses on investigating geostatistical models that connect species occurrence and biomass observations with environmental covariates at a limited number of locations. The main objectives are to identify hotspots of juvenile richness, and map recruitment areas and seasons. Our...
Joint model for zero-inflated data combining fishery-dependent and fishery-inde...
Silva, Daniela; Menezes, Raquel; Araújo, Gonçalo; Rosa, Renato; Moreno, Ana; Silva, Alexandra; Garrido, SusanaAccurately identifying spatial patterns of species distribution is crucial for scientific insight and societal benefit, aiding our understanding of species fluctuations. The increasing quantity and quality of ecological datasets present heightened statistical challenges, complicating spatial species dynamics comprehension. Addressing the complex task of integrating multiple data sources to enhance spatial fish ...
GIS multisource data for the seismic risk assessment of urban areas
Costa, Óscar; Marinho Reis, A. Paula; Silva, António; Menezes, RaquelIn 2020. natural disasters affected around 100 million people worldwide, highlighting the need for improved risk assessment and preparedness, especially in densely populated urban areas prone to seismic events, like Lisbon City. Although comprehensive seismic risk models for Lisbon exist, the lack of a user-friendly, real-time tool for assessing earthquake impacts and implementing effective evacuation plans is ...
Developing a 3D Web-GIS Mapping Platform to support seismic vulnerability asses...
Costa, Óscar; Marinho Reis, A. Paula; Menezes, Raquel; Silva, AntónioIn 2020, natural disasters globally affected around 100 million people, causing substantial economic and human losses. The population density in low-lying coastal or riverside areas heightens the risk of significant impacts from natural disasters. Due to its location, Portugal's tectonic environment induces low to moderate seismic and co-seismic hazards with the potential for considerable economic and human los...
Presence-only for marked point process under preferential sampling
Moreira, Guido Alberti; Menezes, Raquel; Wise, LauraPreferential sampling models have garnered significant attention in recent years. Although the original model was developed for geostatistics, it founds applications in other types of data, such as point processes in the form of presence-only data. While this has been recognized in the Statistics literature, there is value in incorporating ideas from both presence-only and preferential sampling literature. In t...
Environmental effects on the spatiotemporal variability of sardine distribution...
Silva, Daniela; Menezes, Raquel; Moreno, Ana; Teles-Machado, Ana; Garrido, SusanaScientific tools capable of identifying distribution patterns of species are important as they contribute to improve knowledge about biodiversity and species dynamics. The present study aims to estimate the spatiotemporal distribution of sardine (Sardina pilchardus, Walbaum 1792) in the Portuguese continental waters, relating the spatiotemporal variability of biomass index with the environmental conditions. Aco...