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Dataset results
73 results for “Portfolio”
MCR LTER: Coral Reef: Spatial portfolios in coral metapopulations are shaped by spatiotemporal asynchrony in environmental conditions; Data for Srednick et al., 2026 Ecology Letters
Using wavelet analyses of a 19-year coral community timeseries from Moorea, French Polynesia, we quantified timescale-specific population synchrony in four common coral genera and evaluated the predictors of spatial portfolio effects. We detected synchrony within genera associated with synchrony in degree heating days, diurnal temperature range (DTR), and macroalgal cover at different timescales. Synchrony in DTR and macroalgal cover was associated with lower synchrony of Pocillopora and Porites populations, respectively. Population (for three of four genera) and environmental synchrony were stronger within than among habitats across timescales, underscoring the role of habitat-specific conditions in driving spatial synchrony and spatial portfolios. These results describe how the spatial and temporal scales of heterogeneity in environmental and ecological conditions determine synchrony in coral population dynamics and support a spatial portfolio effect, which may buffer coral metapopulations from island-scale collapse. Data in support of analyses for: Spatial portfolios in coral metapopulations are shaped by spatiotemporal asynchrony in environmental conditions. Published in Ecology Letters 2026.
Improving Formal Verification with Portfolio-based Runtime Techniques: Dataset
<p>Evaluation Dataset of the Scientific Students’ Association Report titled Improving Formal Verification with Portfolio-based Runtime Techniques</p>
Low carbon energy R&D portfolios that are robust when models and experts disagree
<p>This data archive contains model runs and data analysis files to the research article</p> <p><strong>Low carbon energy R&D portfolios that are robust when models and experts disagree</strong></p> <p>by</p> <p>Franklyn Kanyako, Erin Baker, David Anthoff</p> <p> </p> <p><strong>All Model output and Non-Dominated Portfolios</strong>: This contains all expected values of all model outputs, used to determine the non-dominated portfolios under each policy.</p> <p><strong>Large Scale Expert Elicitation of R&D Investment</strong>: Contains samples of expert elicitation from each elicitation team.</p> <p> </p> <p> </p>
mDRONES4rivers-project: Portfolios of classification results, UAV and gyrocopter data of project sites situated in riparian zones along federal waterways in Germany with focus on the Rhine River, Germany
<p>Spatially and temporally high-resolution data was acquired with the aid of multispectral sensors mounted on UAV and a gyrocopter platform for the purpose of classification. The work was part of the research and development project „Modern sensors and airborne remote sensing for the mapping of vegetation and hydromorphology along Federal waterways in Germany“ (mDRONES4rivers) in cooperation of the German Federal Institute of Hydrology (BfG), Geocoptix GmbH, Hochschule Koblenz und JB Hyperspectral Devices. </p> <p>Within the project period (2019-2022) data was collected at different sites situated in Germany along the Rivers Rhine and Oder. All published data produced within the project can be found by searching for the keyword ‘mDRONES4rivers‘. </p> <p>In this dataset, the following portfolios of classifications, UAS and gyrocopter data of project sites situated in riparian zones along federal waterways in Germany with focus on the Rhine River are available for download:</p> <p>• Multispectral orthophotos produced with the aid of UAS (PDF, Detailed description of sensors and data acquisition procedure; abbreviation: MS_ORTHO)</p> <p>• RGB-orthophotos and digital surface models produced with the aid of UAS (PDF, Detailed description of sensors and data acquisition procedure; abbreviation: PH_SR_ORTHO_DSM)</p> <p>• Multispectral orthophotos and Digital Surface Models produced with the aid of a gyrocopter (PDF, Detailed description of sensors and data acquisition procedure; abbreviation: PANX_ORTHO_DSM)</p> <p>• Classification results based on UAV- and a gyrocopter data (PDF, Detailed description of processing procedure for different classification levels; abbreviation: CLASSIF_PROD)</p> <p>• German translated version of all above mentioned product portfolios (PDF, abbreviation: product_portfolio_collection_ger)</p>
Species Portfolio Effects Dominate Seasonal Zooplankton Stabilization Within a Large Temperate Lake
<p>The raw data file is available online for public access (<a href="https://data.ontario.ca/dataset/lake-simcoe-monitoring">https://data.ontario.ca/dataset/lake-simcoe-monitoring</a>). Download the 1980-2019 csv files and open up the file named "Simcoe_Zooplankton&Bythotrephes.csv". Copy and paste the zooplankton sheet into a new excel file called "Simcoe_Zooplankton.csv". The column ZDATE in the excel file needs to be switched from GENERAL to SHORT DATE so that the dates in the ZDATE column read "YYYY/MM/DD". Save as .csv in appropriate R folder. The data file "simcoe_manual_subset_weeks_5" is the raw data that has been subset for the main analysis of the article using the .R file "Simcoe MS - 5 Station Subset Data". The .csv file produced from this must then be manually edited to remove data points that do not have 5 stations per sampling period as well as by combining data points that should fall into a single week. The "simcoe_manual_subset_weeks_5.csv" is then used for the calculation of variability, stabilization, asynchrony, and Shannon Diversity for each year in the .R file "Simcoe MS - 5 Station Calculations". The final .R file "Simcoe MS - 5 Station Analysis contains the final statistical analyses as well as code to reproduce the original figures. Data and code for main and supplementary analyses are also available on GitHub (https://github.com/reillyoc/ZPseasonalPEs). </p> <p> </p>
CROSSBOW HLU3-UC3-TC1 Energy arbitrage revenues for RES portfolio
<p>In the process of energy arbitrage described in HLU3_UC3, the RES BSPs manages to be paid for their generation at least with a proce equal to its generation cost (40€ in the demonstration). This is achieved by:</p> <ul> <li>Selling their production in the DA/ID at the market price (price < 40€ in the demonstration)</li> <li>Selling their production in the storage market at a price that covers the gap until the generation cost (40€ in the demonstration). This is a financial market that do not imply real energy exchange, but allows for bilateral agreements between RES plants and storage assets</li> </ul> <p>The dataset contains the revenues theoretically obtained in the DA/ID markets and the real revenues obtained considering the bilateral agreement with the storage asset. Fields:</p> <ul> <li>Time</li> <li>Theorical Revenues</li> <li>Real revenues</li> </ul>
Strategic selection of cryptocurrency investment portfolios based on discrete multi-criteria methods.
<p>In recent years, cryptocurrencies have gone from an unknown plane to a protagonist one, with strategic investment in these assets becoming increasingly popular for organizations seeking to diversify their portfolios. However, cryptocurrencies carry a high risk due to their high volatility. Based on the multi-criteria decision making theory, a decision support system was developed for the design of business investment portfolios in cryptocurrencies, starting from the definition of criteria based on historical data that characterize returns and risks in different ways, all this for short time windows of 7 and 15 days. Then, the importance of criteria was analyzed by various methods and their impact was evaluated assuming changes in stock prices. Finally, multi-criteria methods were applied for the design of cryptocurrency investment portfolios in the above-mentioned time windows. The developed system is applicable to companies of any size, since the studied methods provide bigger rationality and objectivity to the strategic decision-making process. The resulting method can be extended in the future to incorporate criteria that take advantage of information on the market capitalization of cryptocurrencies, as well as capturing investor sentiment or the expected shortfall of the investment.</p>
Dataset: Consumer Portfolio Services, Inc. (CPSS) Stock Performance
This dataset provides historical stock market performance data for specific companies. It enables users to analyze and understand the past trends and fluctuations in stock prices over time. This information can be utilized for various purposes such as investment analysis, financial research, and market trend forecasting.
Dataset: Altisource Portfolio Solutions S.A. (ASPS) Stock Performance
This dataset provides historical stock market performance data for specific companies. It enables users to analyze and understand the past trends and fluctuations in stock prices over time. This information can be utilized for various purposes such as investment analysis, financial research, and market trend forecasting.
Results of TIMES model & inputs and outputs of the multicriteria and portfolio analysis
<p>These datasets contain the underlying data for the following publication: <strong>Energy efficiency promotion in Greece in light of risk: Evaluating policies as portfolio assets, Energy, https://doi.org/10.1016/j.energy.2018.12.180</strong></p>
Data for: Optimizing a metabarcoding marker portfolio for species detection from complex mixtures of globally diverse fishes
<p>DNA metabarcoding is used to enumerate and identify taxa in both environmental samples and tissue mixtures, but the effectiveness of particular markers depends on their sensitivity to the taxa involved. Using multiple primer sets that amplify different genes can mitigate biases in amplification efficiency, sequence resolution, and reference data availability, but few empirical studies have evaluated markers for complementary performance. Here, we assess the individual and joint performance of 22 markers for detecting species in a DNA pool of 98 species of marine and freshwater bony fishes from geographically and phylogenetically diverse origins. We find that a portfolio of four markers targeting 12S, 16S, and two regions of COI identifies 100% of reference taxa to family and nearly 60% to species. We then use these four markers to evaluate metabarcoding of heterogeneous tissue mixtures, using experimental fishmeal to test: 1) the tissue input threshold to ensure detection; 2) how read depth scales with tissue abundance; and 3) the effect of non-target material in the mixture on recovery of target taxa. We consistently detect taxa that make up >1% of fishmeal mixtures and can detect taxa at the lowest input level of 0.01%, but rare taxa (<1%) were detected inconsistently across markers and replicates. Read counts showed only a weak correlation with tissue input, suggesting they are not a reliable quantitative proxy for relative abundance. Despite the limitations arising from primer specificity and reference data availability, our results demonstrate that a modest portfolio of markers can perform well in detecting and identifying aquatic species in complex mixtures despite heterogeneity in tissue representation, phylogenetic affinities, and from a broad geographic range.</p>
Data for: Optimizing a metabarcoding marker portfolio for species detection from complex mixtures of globally diverse fishes
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SWAT+ simulation result used in "Smart renewable electricity portfolios in West Africa"
<p>Shapefiles and simulation results from SWAT+ used for the paper "Smart renewable electricity portfolios in West Africa" by Sterl et al., who used it to infer the interannual variability of river flow seasonality across West Africa.</p>
Publisher OA Portfolios 2.0
<p>Publisher OA Portfolios as of April 2020.</p>
Development of an Art Portfolio Management System Complemented by a Think-Alout Protocol
<p>This dataset was created to fulfill the task of <strong>bachelor thesis</strong>.<strong> </strong>Dataset can be used for research in the field of Think-Aloud Protocol.</p> <p>Dataset contais data and recordings in <strong>Slovak language</strong>, from process of development the Portfolio Application.</p> <p>Aplication source-code is available at GitHub: <a href="https://github.com/JancoKorky/portfolio">https://github.com/JancoKorky/portfolio</a></p>
Portfolio simplification arising from a century of change in salmon population diversity and artificial production
<p>1. Population and life-history diversity can buffer species from environmental variability and contribute to long-term stability through differing responses to varying conditions akin to the stabilizing effect of asset diversity on financial portfolios. While it is well known that many salmon populations have declined in abundance over the last century, we understand less about how different dimensions of diversity may have shifted. Specifically, how has diminished wild abundance and increased artificial production (i.e., enhancement) changed portfolios of salmon populations, and how might such change influence fisheries and ecosystems?</p> <p>2. We apply modern genetic tools to century-old sockeye salmon (<em>Oncorhynchus nerka</em>) scales from Canada's Skeena River watershed to (<em>i</em>) reconstruct historical abundance and age-trait data for 1913–1947 to compare with recent information, (<em>ii</em>) quantify changes in population and life-history diversity and the role of enhancement in population dynamics, and (<em>iii</em>) quantify the risk to fisheries and local ecosystems resulting from observed changes in diversity and enhancement.</p> <p>3. The total number of wild sockeye returning to the Skeena River during the modern era is 69% lower than during the historical era; all wild populations have declined, several by more than 90%. However, enhancement of a single population has offset declines in wild populations such that aggregate abundances now are similar to historical levels.</p> <p>4. Population diversity has declined by 70%, and life-history diversity has shifted: populations are migrating from freshwater at an earlier age, and spending more time in the ocean. There also has been a contraction in abundance throughout the watershed, which likely has decreased the spatial extent of salmon provisions to Indigenous fisheries and local ecosystems. Despite the erosion of portfolio strength that this salmon complex hosted a century ago, total returns now are no more variable than they were historically perhaps in part due to the stabilizing effect of artificial production.</p> <p>5.<em> Policy implications</em>. Our study provides a rare example of the extent of erosion of within-species biodiversity over the last century of human influence. Rebuilding a diversity of abundant wild populations – that is, maintaining functioning portfolios - may help ensure that watershed complexes like the Skeena are robust to global change. </p>
Padrão dos Descobrimentos (Western Portfolio)
Check out my [Instagram](https://www.instagram.com/buzquirk/) for more content! Source: Objaverse 1.0 / Sketchfab
Aggregator portfolio generator
<p>Matlab script for generating a set of units for an aggregator..</p>
PhD Thesis Portfolio
<p>Artistic portfolio for the PhD thesis "A Continually Receding Horizon: Making, performing, and improvising with semi-autonomous double bass feedback instruments".</p>
LIFE Ilhas Barreira - D1 Project Milestone: Portfolio of UAV surveys database
<p>The Ria Formosa Natural Park, a multi-barrier island system located in South Portugal, holds a variety of dune habitats of high ecological value. However, some of them are threatened by both human and natural pressures. An example are the grey dunes located at Barreta Island, which show clear signs of perturbation due to the settlement of two gull breeding colonies (west and east). The native grey dune vegetation coverage has been reduced within the nesting areas and replaced by ruderal species adapted to a higher nutrient content and gull physical disturbance (<a href="https://www.sciencedirect.com/science/article/pii/S1470160X22002412">Talavera et al., 2022</a>; <a href="https://doi.org/10.3390/d15050589">Portela et al., 2023</a>).</p> <p>Aiming to restore the native grey dune vegetation, the LIFE Ilhas Barreira project (LIFE18 NAT/PT/000927) implemented several conservation measures. Among them were the installation of gull control and exclusion areas in the two nesting areas (details on the materials and configuration of the exclusion and control areas can be found at <a href="https://www.lifeilhasbarreira.pt/wp-content/uploads/2021/04/Deliverable-C2-Gull-exclusion-areas_compressed.pdf">Deliverable C2</a>), which were monitored using a DJI Phantom 4 Multispectral drone during a 2-year period (December 2020-December 2022).</p> <p>The 5-band orthophotoimages available for download show the evolution of the vegetation coverage in these gull control and exclusion areas over the 2-year monitoring period.</p>
ScienceDex guides
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These curated guides explain access requirements, typical timelines, costs, and reuse considerations for widely used research datasets.
Allen Brain Atlas
Allen Brain Atlas is an Allen Institute collection of brain map atlases, datasets, APIs, and analysis tools covering mouse, human, and non-human primate brain resources.
Annotated Behaviour and Observability Dataset (ABODe)
ABODe is a University of Edinburgh DataShare dataset for behavior classification in group-housed mice using home-cage video, identities, bounding boxes, ground-plate positions, and annotator labels.
DANDI Archive for NWB datasets
DANDI is a BRAIN Initiative archive for publishing and sharing neurophysiology data, including electrophysiology, optophysiology, and behavioral data packaged as NWB and related standards.
International Brain Laboratory public data
The International Brain Laboratory public data releases expose standardized mouse decision-making experiments, including Neuropixels recordings, widefield calcium imaging, behavior, and session metadata accessed through the ONE API.
OpenNeuro
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.