Washington Research Library Consortium - Digital Collections
Not a member yet
125665 research outputs found
Sort by
Dyptich
No full textA work for chamber orchestra.Musical compositionChamber OrchestraCompositionDegree Awarded: M.M.--Composition. The Catholic University of Americ
Aerial scene classification through fine-tuning with adaptive learning rates and label smoothing
No full textApplied Sciences (Switzerland), Volume 10, Issue 17, September 2020, Article number 5792.Remote Sensing (RS) image classification has recently attracted great attention for its application in different tasks, including environmental monitoring, battlefield surveillance, and geospatial object detection. The best practices for these tasks often involve transfer learning from pre-trained Convolutional Neural Networks (CNNs). A common approach in the literature is employing CNNs for feature extraction, and subsequently train classifiers exploiting such features. In this paper, we propose the adoption of transfer learning by fine-tuning pre-trained CNNs for end-to-end aerial image classification. Our approach performs feature extraction from the fine-tuned neural networks and remote sensing image classification with a Support Vector Machine (SVM) model with linear and Radial Basis Function (RBF) kernels. To tune the learning rate hyperparameter, we employ a linear decay learning rate scheduler as well as cyclical learning rates. Moreover, in order to mitigate the overfitting problem of pre-trained models, we apply label smoothing regularization. For the fine-tuning and feature extraction process, we adopt the Inception-v3 and Xception inception-based CNNs, as well the residual-based networks ResNet50 and DenseNet121. We present extensive experiments on two real-world remote sensing image datasets: AID and NWPU-RESISC45. The results show that the proposed method exhibits classification accuracy of up to 98%, outperforming other state-of-the-art methods
Two individuals conduct a home inspection
No full textTwo people conduct a home inspection while wearing face masks
Scenarios for global aquaculture and its role in human nutrition
No full textGlobal demand for freshwater and marine foods (i.e., seafood) is rising and an increasing proportion is farmed. Aquaculture encompasses a range of species and cultivation methods, resulting in diverse social, economic, nutritional, and environmental outcomes. As a result, how aquaculture develops will influence human wellbeing and environmental health outcomes. Recognition of this has spurred a push for nutrition-sensitive aquaculture, which aims to benefit public health through the production of diverse, nutrient-rich seafood and enabling equitable access. This article explores plausible aquaculture futures and their role in nutrition security using a qualitative scenario approach. Two dimensions of economic development–the degree of globalization and the predominant economic development philosophy–bound four scenarios representing systems that are either localized or globalized, and orientated toward maximizing sectoral economic growth or to meeting environmental and equity dimensions of sustainability. The potential contribution of aquaculture in improving nutrition security is then evaluated within each scenario. While aquaculture could be “nutrition-sensitive” under any of the scenarios, its contribution to addressing health inequities is more likely in the economic and political context of a more globally harmonized trade environment and where economic policies are oriented toward social equity and environmental sustainability
Rainbow tape on a sidewalk square
No full textRainbow tape on a sidewalk square outside of a gay bar in Logan Circle. Used as a social distancing marker, the rainbow tape covers the perimeter of the sidewalk square and marks the number '1' in the center
Pinkey Reddick poses wearing a mask with a prepared meal
No full textChef Pinkey Reddick poses wearing a mask with a prepared meal made for seniors and homebound residents at World Central Kitchen
Social distance markers on the sidewalk outside of Calvin Coolidge Senior High School
No full textSocial distance markers on the sidewalk outside of Calvin Coolidge Senior High School that read, 'Wait here. As CDC recommends, stand 6 ft. apart to stop the spread.' Logos for Mayor Muriel Bowser, DC Health, and DCRA surround the message
Flier for Rona the pufferfish
No full textA flier advertising the Instagram social media account of Rona the pufferfish. The sign reads 'Bored during quarantine? Help make our Pufferfish Famous! We are trying to make our Pufferfish the first ever 'Finfluencer' on Instagram. Please follow her account @Ronathepuff and tag her in your Instagram story if you support the cause. She is a really good fish and deserves your follow. You won't regret it, I promise!
Mary and the Eucharist in the thought of Hans Urs von Balthasar
No full textby David Renne..Typescript.Thesis--(S.T.L)--Catholic University of America, 2020.Bibliography: leaves 92-93.Also available in microfilm.Also available in microfiche
Study of the defect evolution in the Frescos in the senate reception room of the US Capitol building
No full textby Amelia Vignola.Typescript.Thesis (M.S.E.--Mechanical)--Catholic University of America, 2020.Bibliography: leaves 122-123.Also available in microfilm