Find research datasets worth reusing
Search datasets from major research repositories and use ShareScore to quickly assess how well each record supports discovery, access, and reuse.
849
datasets available to search
ShareScore release 0.7.1
Dataset results
849 results for “linear”
Data of Newton method of "A unifying framework for ADI-like methods for linear matrix equations and beneficial consequences"
<p>This deposit contains the datasets generated by the Newton method for the paper:</p> <ul> <li>J. Schulze, J. Saak: "A unifying framework for ADI-like methods for linear matrix equations and beneficial consequences".</li> </ul> <p>Download the individual files and store them inside the directory <code>data/newton-adi/</code>.</p> <p>The file names are structured as follows.</p> <ul> <li><code>Rail5177</code>: <a href="https://morwiki.mpi-magdeburg.mpg.de/morwiki/index.php/Steel_Profile">Steel Profile</a> benchmark problem of dimension 5177</li> <li><code>adi_initprev=true|false</code>: whether the initial ADI iterate was set to the solution of the previous Newton step (or zero)</li> <li><code>adi_kwargs=...</code>: keyword arguments passed to ADI method <ul> <li><code>maxiters=1000</code>: maximum number of iterations</li> <li><code>shifts=...</code>: shift strategy</li> </ul> </li> <li><code>newton_kwargs=...</code>: keyword arguments passed to Newton method <ul> <li><code>inexact=true|false</code>: whether to use inexact Newton method</li> <li><code>inexact_hybrid=true|false</code>: whether to switch back to classical Newton method in later iterations (only present if <code>inexact=true</code>)</li> <li><code>linesearch=true|false</code>: whether to employ line search</li> <li><code>reltol=1e-10</code>: relative tolerance to reason about convergence</li> </ul> </li> <li><code>β=1000</code>: scaling of the quadratic term in the ARE</li> <li><code>.jld2</code>: file suffix. All file have been generated with <a href="https://github.com/JuliaIO/JLD2.jl">JLD2.jl</a> version 0.4.38</li> </ul> <p>Load the dataset via <code>using JLD2</code> and <code>file = load(FILENAME)</code>. This will yield a dictionary having the following entries:</p> <ul> <li><code>file["newton_metrics"]</code>: data frame containing execution metrics of Newton iterations</li> <li><code>file["adi_metrics"]</code>: data frame containing execution metrocs of ADI iterations of all Newton iterations</li> <li><code>file["timer"]</code>: isolated runtime metrics generated with <a href="https://github.com/KristofferC/TimerOutputs.jl">TimerOutputs.jl</a> version 0.5.23</li> <li><code>file["timer_metrics"]</code>: runtime metrics of seperate run with additional data observers enabled</li> <li><code>file["config"]</code>: internal configuration object that led to this dataset (information also embedded in file name)</li> <li><code>file["failed"]</code>: Boolean on whether configuration has failed</li> </ul> <p>All data frames were generated with <a href="https://github.com/JuliaData/DataFrames.jl">DataFrames.jl</a> version 1.6.1 and have their columns documented <a href="https://dataframes.juliadata.org/stable/lib/metadata/">using metadata</a>.</p> <p>Generating this dataset took ~3h and consumed ~0.25kWh of electricity.</p>
Non-linear genetic regulation of the blood plasma proteome - GWAS Summary Statistics
Open the record for dataset details and reuse information.
Replication package for: Network formation and efficiency in linear-quadratic games: An experimental study
<p>This is a replication package for the manuscripted titled "Network formation and efficiency in linear-quadratic games: An experimental study" published in the Economic Journal. </p>
Enhancing Regional Quasi-Geoid Refinement Precision: An Analytical Approach Employing ADS80 Tri-linear Array Stereoscopic Imageryand GNSS Gravity-Potential Leveling
Open the record for dataset details and reuse information.
Simulation data output used in test-particle simulations of linear and nonlinear interactions between a 2D whistler-mode wave packet and radiation belt electrons
<p><strong>Dataset</strong></p> <p>The zip file contains the data used in the paper "Test-particle simulations of linear and nonlinear interactions between a 2D whistler-mode wave packet and radiation belt electrons" submitted for publication in Geophysical Research Letters (GRL) by da Silva et al. See the GRL paper and Supporting Information for details about the simulations. This data has been uploaded to Zenodo to comply with AGU's data policy.</p> <p>To load the data please run the self-explanatory script load_hyb_test_part.m in Matlab. See README.txt for further instructions.</p> <p>C. L. da Silva, Mar/21/2018</p> <p> </p> <p><strong>Corresponding Article</strong></p> <p>C. L. da Silva, R. E. Denton, M. K. Hudson, R. M. Millan, K. Liu, J. Bortnik (2018) Test-particle simulations of linear and nonlinear interactions between a 2D whistler-mode wave packet and radiation belt electrons, Submitted for publication, <em>Geophys. Res. Lett.</em>, doi:10.1002/2018GL077877.</p> <p> </p> <p><strong>Article Abstract</strong></p> <p>Using test-particle simulations, we describe (in 2D) the interaction of an ensemble of electrons with a discrete whistler-mode wave packet, which propagates with a moderate wave-normal angle with respect to the background magnetic field. We evaluate both the average transport coefficients used in quasi-linear diffusion transport, and also the full nonlinear wave-particle interactions. The magnitude of the calculated diffusion coefficients is found to increase proportionally to the wave amplitude squared, in agreement with quasi-linear diffusion theory. Cyclotron resonance of counterstreaming electrons (n=1 harmonic number) is more important for pitch-angle scattering than Landau resonance. Landau resonance of costreaming electrons (n=0) is comparable to cyclotron resonance for energy diffusion and advection. Strong acceleration of high-pitch-angle, costreaming electrons arises in nonlinear wave-particle interactions with high amplitude waves. In our simulations with zero parallel electric field, the energy source for electron acceleration is the wave's perpendicular electric field, in both the cyclotron and Landau resonances. The Landau resonance can happen even with zero parallel electric field, if the wave packet propagates with a finite wave-normal angle. This resonance between the particle's azimuthal velocity and the wave fields leads to trapping and substantial parallel acceleration.</p> <p> </p> <p><strong>Article key points</strong></p> <p>Cyclotron resonance of counterstreaming electrons is dominant for pitch-angle scattering, consistent with quasi-linear theory</p> <p>Landau and cyclotron resonances are comparable for acceleration; here the energy source is the wave perpendicular electric field in both</p> <p>Substantial Landau parallel acceleration occurs with a finite wave-normal angle, even with zero parallel electric field</p> <p> </p> <p><strong>Acknowledgments</strong></p> <p>These simulations were performed at Dartmouth's Discovery computer cluster. We would like to thank all the supporting staff for their assistance and for their splendid maintenance of Discovery.</p> <p> </p> <p> </p> <p> </p>
Research data for: "Band Structure Interpolation using Optimized Local Orbitals from Linear-Scaling Density-Functional Theory"
<p>This file was created by Laura E. Ratcliff on 23rd March 2018. It contains the input files employed for the ONETEP and CASTEP calculations in the above publication.</p> <p>Directory Listing:</p> <p>castep/</p> <p>Contains the input files used to generate the CASTEP reference data.</p> <p>onetep/</p> <p>Contains the input files used to generate all of the ONETEP data, where filenames are labelled with the number of repeat CNT units, val (cond) indicates a valence (conduction) calculation and the suffixes follow a similar labelling convention to that employed in the manuscript.</p>
Modeling Compliance Specifications in Linear Temporal Logic, Event Processing Language and Property Specification Patterns
<p>Experimental material & data</p>
Mediterranean Sea Climatic Indices - Linear trends of T/S, OHC/OSC Anomalies
<p>Climatic indices for the Mediterranean Sea (6.25W-36.5E, 30N-46N) from 1950 to 2015. The file<br> "Med_Climatic_Indices_LinearTrends.tar.gz" contains : a) an ascii file named "inventory_LinearTrends.txt" which lists all the available indices, and b) a directory named "LinearTrends" with the indices under the following structure:</p> <ul> <li>LinearTrends/Annual/Variable_period_allmonths_z1z2.nc</li> <li>LinearTrends/Seasonal/ Variable_period_season_z1z2.nc</li> </ul> <p>The Variable naming is:</p> <ul> <li>Tlineartrend: Vertically averaged temperature anomaly linear trend</li> <li>Slineartrend: Vertically averaged salinity anomaly linear trend</li> <li>OHClineartrends: Ocean Heat Content anomaly linear trend</li> <li>OSClineartrends: Ocean Salt Content anomaly linear trend</li> </ul> <p> </p> <p>Other naming:</p> <ul> <li>period: stands for 19502015</li> <li>allmonths: 0112 (all months from January to December)</li> <li>season: 0103 for winter, 0406 for spring, 0709for summer, 1012 for autumn</li> <li>z1z2: vertical layer between z1 and z2 depths</li> </ul> <p>Example:</p> <ul> <li>Tlineartrend_19502015_0112_6004000.nc, is the annual vertically temperature anomaly linear trend, for the period 19502015, between 600 and 4000 m</li> </ul>
ON THE CAPABILITY OF THE LINEAR DICHROIC INFRARED SPECTROSCOPY - dataset of experimental spectra
<p>Experimental dataset</p>
text-fig. 58. Diagrams showing how character distribution in a cladogram indicates gaps in the fossil record, a, arrangement of three taxa in a cladogram; synapomorphies a-f support the monophyly of the clade (B-C). B, if gradual acquisition of characters is assumed, several taxa must be missing in the phylogeny between taxon A and clade (B-C). The number of taxa missing is positively (though not necessarily linearly) correlated with the number of synapomorphies that diagnose any given node. in The interrelationships and evolution of basal theropod dinosaurs
text-fig. 58. Diagrams showing how character distribution in a cladogram indicates gaps in the fossil record, a, arrangement of three taxa in a cladogram; synapomorphies a-f support the monophyly of the clade (B-C). B, if gradual acquisition of characters is assumed, several taxa must be missing in the phylogeny between taxon A and clade (B-C). The number of taxa missing is positively (though not necessarily linearly) correlated with the number of synapomorphies that diagnose any given node.
TEXT-FIGURE 3. Scatterplots of morphometric measurements of Thecidellina leipnitzae sp. nov. Abbreviations: L, length; W, width; LDV, length of dorsal valve; T (max), maximal thickness; Lint, length of the interarea, Wint, width of hinge line or interarea. Relationships between ratios L/W and width, LDV/W and width, T(max)/W and width, Lint/W and width and Wint/W and width. Linear regression and regression coefficient (R²) indicated. The regression coefficient (R²) is indicated. N is the number of specimens measured. in Recent thecideide brachiopods from a submarine cave in the Department of Mayotte (France), northern Mozambique Channel
TEXT-FIGURE 3. Scatterplots of morphometric measurements of Thecidellina leipnitzae sp. nov. Abbreviations: L, length; W, width; LDV, length of dorsal valve; T (max), maximal thickness; Lint, length of the interarea, Wint, width of hinge line or interarea. Relationships between ratios L/W and width, LDV/W and width, T(max)/W and width, Lint/W and width and Wint/W and width. Linear regression and regression coefficient (R²) indicated. The regression coefficient (R²) is indicated. N is the number of specimens measured.
Fig. 1. Linear monochrome 16 in A new method of staining larvae of Lepidoptera using carbol fuchsin
Fig. 1. Linear monochrome 16-bit TIFF files: a — general view of larvae, b — enlarged view, yellow rectangles correspond to areas where brightness for the seta (1) and cuticle near the seta (2) were determined. Рис. 1. Линейный монохромный TIFF файл: a — обЩий вид, b — увеличенный вид, желтыми прЯмоугольниками покаЗаны области иЗмерениЯ Яркости Щетинки (1) и фона рЯдом с Щетинкой (2).
Linear cross-entropy certification of quantum computational advantage in Gaussian Boson Sampling
<p>This repository contains the data used to obtain the numerical results of the paper "Linear cross-entropy certification of quantum computational advantage in Gaussian Boson Sampling" (https://arxiv.org/abs/2403.15339).</p>
Data of linear shear of photoelastic grains in two dimensions
Open the record for dataset details and reuse information.
FIGURE 2. Adenocalymma lineare. A. Flowering branch. B in Two new species of Adenocalymma (Bignonieae, Bignoniaceae) from the Atlantic Forest of Brazil
FIGURE 2. Adenocalymma lineare. A. Flowering branch. B. Detail of interpetiolar region showing prophylls of the axillary buds. C. Flower bud. D. Floral bract. E. Bracteole. F. Side view of an open flower. G. Calyx artificially cut on one side and spread open. H. Frontal view of the corolla. I. Corolla artificially cut on one side and spread open. J. Nectar disk, ovary, style and stigma. K. Detail of stigma. L. Side view of a fruit. M. Seeds. Illustrated from [A–K] Fonseca L.H.M. & Gomes B.M. 429 (SPF) and [L–M] Magnano L.F.S. et al. 1158 (SPF).
FIGURE 7. A–F. Gelidium lineare. A in Morphological and molecular studies on Gelidiaceae and Gelidiellaceae (Gelidiales, Rhodophyta) from Brazil with description of the new species Gelidium calidum
FIGURE 7. A–F. Gelidium lineare. A. Detail of the apical portion showing the apical cell between two lobes (SP469087). Scale bar = 25 μm. B. Cross section of the middle region of the the main branch (SP469087). Scale bar = 100 μm. C. Detail of tetrasporangial branch (SP469091). Scale bar = 250 μm. D. Cross section of tetrasporangial branch, showing cruciately divided tetrasporangia (SP469091). Scale bar = 100 μm. E. Detail of male gametophyte branches, which may have more than one sorus per branch (SP469087). Scale bar = 500 μm. F. Cross section of male gametophyte branch, showing spermatia originated by transverse divisions (arrow) of elongated outer cortical cells (SP469087). Scale bar = 20 μm. G–K. Gelidium microdonticum (SP469070). G. Detail of the apical portion showing the apical cell between two lobes. Scale bar = 100 μm. H. Cross section of the middle region of the the main branch. Scale bar = 100 μm. I. Detail of the thallus, showing abundant rhizines in the medullary region. Scale bar = 250 μm. J. Tetrasporangial branch. Scale bar = 100 μm. K. Cross section of tetrasporangial branch, showing cruciately divided tetrasporangia. Scale bar = 100 μm.
FIGURE 43. Daviesia corymbosa. A. Flowering branchlet. B. Linear phyllode. C. Inflorescence. D. Flower, lateral view. E in A monograph of Daviesia (Mirbelieae, Faboideae, Fabaceae)
FIGURE 43. Daviesia corymbosa. A. Flowering branchlet. B. Linear phyllode. C. Inflorescence. D. Flower, lateral view. E. Calyx opened out, upper lobes at left. F. Standard. G Wings. H. Keel. I. Same, opened out. J. Pod. A, C–I from Crisp 1168; B, J from Crisp 4688. Drawn by A.L. Prowse and D. Fortescue. Adapted from Crisp (1991a) with permission from CSIRO Publishing.
FIGURE 2. Anthoceros angustus Steph. A. Thallus with marginal gemmae. B. Male thallus, with androecia linearly arranged along the median line. C. Gemma. D in A revision of the genus Anthoceros (Anthocerotaceae, Anthocerotophyta) in China
FIGURE 2. Anthoceros angustus Steph. A. Thallus with marginal gemmae. B. Male thallus, with androecia linearly arranged along the median line. C. Gemma. D. Dehisced antheridia with orange chromoplasts in jacket cells. E. Transverse section of thallus showing large mucilage cavities. F. Elongated epidermal cells of a young capsule, showing thin-walled cells and two stomata. G. Epidermis of thallus, showing solitary chloroplasts with starch granules. H. Elongated, thin-walled pseudoelater. I, K, N, O. SEM micrographs showing proximal spore faces with distinct trilete marks and shortly papillate to spinulate-blunt protuberances. J, L, M, P. SEM micrographs showing distal spore faces with adherent studded spines forming a false lamellate pattern. A and C–M from T. Peng & J. Wang 20110520-8 (HSNU), B and D from T. Peng & J. Wang 20111011-9 (HSNU), N–P from Rev. Bretaudeau 1239 (holotype of Anthoceros angustus: G-12816). Scale bars: A, B=1 mm; C, E=100 µm; D, F, H=50 µm; G, I–P=10 µm.
FIGURE 1. A in On the identity of Lepismium lineare and L. warmingianum (Cactaceae, Rhipsalidae)
FIGURE 1. A. Flowering branches of Lepismium lineare (above) and L. warmingianum (bellow). B. Details of a flower of L. lineare. C. Flowering branch of L. warmingianum. D. Details of flower of L. warmingianum. (A–B, Lombardi 10112, C–D, Lombardi 7486).
Derived Optimal Linear Combination Evapotranspiration (DOLCE)
<p>The Derived Optimal Linear Combination Evapotranspiration (DOLCE) dataset consists of monthly Evapotranspiration (ET) and their associated uncertainty on a global scale. DOLCE is derived at 0.5 spatial resolution and monthly temporal resolution over the period 2000-2009.</p> <p>DOLCE is derived by weighting six existent global ET products based on their ability to match site-level data from 159 globally distributed flux tower sites.</p> <p>The six evapotranspiration products are: GLEAM V2A, GLEAM V2B, GLEAM V3A, MOD16, MPIBGC and PML .</p> <p>DOLCE is a mosaic of three tiers, we derive each tier from a different weighting ensemble and subset of FLUXNET data. The dominant part (i.e. tier1) involves six ET products and data from 138 flux towers, tier2 involves 5 products and 151 flux towers, while tier3 involved 2 products and 159 sites.</p> <p>This dataset was produced by Dr Sanaa Hobeichi as part of her PhD thesis and of the Centre of Excellence for Climate System Science "The role of land surface forcing and feedbacks for regional climate" research program.</p>
ScienceDex guides
Understand access before you commit
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.