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8,038 results for “validation”
Renoir: Accelerating Blockchain Validation using State Caching
<p>A Blockchain system such as Ethereum is a peer to peer network<br> where each node works in three phases: creation, mining, and validation phases. In the creation phase, it executes a subset of locally<br> cached transactions to form a new block. In the mining phase, the<br> node solves a cryptographic puzzle (Proof of Work - PoW) on the<br> block it formed. On receiving a block from another peer, it starts the<br> validation phase, where it executes the transactions in the received<br> block in order to validate it. Since transactions depend on the state<br> that previously executed transactions have created, a node must<br> validate each newly arrived block before creating a new block on<br> top of it. A long block validation time lowers the system’s overall<br> throughput and brings the well known Verifier’s dilemma into play.<br> Additionally, this leads to wasted mining power utilization (MPU).<br> <br> In this work, we present Renoir a novel mechanism that<br> caches state from transaction execution during the block creation<br> phase and reuses it to enable nodes to skip (re)executing these transactions during block validation. Renoir artifact consists of two parts: First, the extensive measurement from the production Ethereum network to check the extent of redundancy in the transaction execution during block creation and validation phase. Second, Evaluation of Renoir using different metrics(Throughput, Mining Power Utilization and Validation time) on a 50 node testbed mimicking the top 50 Ethereum miners.</p>
DNA metabarcoding quantifies the relative biomass of arthropod taxa in songbird diets: Validation with camera‐recorded diets
<p class="MsoNormal"><span>Ecological research is often hampered by the inability to quantify animal diets. Diet composition can be tracked through DNA metabarcoding of faecal samples, but whether (complex) diets can be quantitatively determined with metabarcoding is still debated and needs validation using free-living animals. This study validates that DNA metabarcoding of faeces can retrieve actual ingested taxa, and most importantly, that read numbers retrieved from sequencing can also be used to quantify the relative biomass of dietary taxa. Validation was done with the hole-nesting insectivorous Pied Flycatcher whose diet was quantified using camera footage. Size-adjusted counts of food items delivered to nestlings were used as a proxy for provided biomass of prey orders and families and subsequently nestling faeces were assessed through DNA metabarcoding. To explore potential effects of digestion, gizzard and lower intestine samples of freshly collected birds were subjected to DNA metabarcoding. For metabarcoding with Cytochrome Oxidase subunit I (COI), we modified published invertebrate COI primers LCO1490 and HCO1777, which reduced host reads to 0.03%, and amplified Arachnida DNA without significant changing the recovery of other arthropod taxa. DNA metabarcoding retrieved all commonly camera-recorded taxa. Overall, and in each replicate year (N = 3), the relative scaled biomass of prey taxa and COI read numbers correlated at R = 0 .85 (95CI:0.68–0.94) at order level and at R = 0.75 (CI:0.67</span><span>–</span><span>0.82) at family level. Similarity in arthropod community composition between gizzard and intestines suggested limited digestive bias. This DNA metabarcoding validation demonstrates that quantitative analyses of arthropod diet is possible. We discuss the ecological applications for insectivorous birds.</span></p>
Specular Meteor Radar wind estimates from Tirupati, used in "Validation of ICON-MIGHTI thermospheric wind observations: 2. Greenline comparisons to specular meteor radars" by Harding et al. (2021)"
<pre>This dataset was used to generate the figures in the paper mentioned above and is being made available for the sake of reproducibility and future analysis. The primary variables are u0, v0 (the zonal and meridional wind profiles observed by the meteor radar). Dimensions are "time" and "alt" (in km). Velocity units are m/s, and lat/lon are in degrees. More information can be found in the paper. Please contact and get permission from the data providers (M. Venkat Ratnam and S. Vijaya Bhaskara Rao) before using the data in any publications or presentations.</pre>
Artifacts Package - "Why don't Developers Detect Improper Input Validation? '; DROP TABLE Papers; --"
<p>Artifacts Package of the accepted ICSE 21 paper: "Why don’t Developers Detect Improper Input Validation? '; DROP TABLE Papers; --".</p> <p>See README.md for more information. </p>
Benchmark data for source localization validation
<p>Template data related to the publication :<br> La Fisca et al., A Versatile Validation Framework for ERP and Oscillatory Source Reconstruction Using FieldTrip, 2021</p> <p>Funded by: F.N.R.S - F.R.I.A, Belgium</p>
Ecological niche modeling and first records from Namibia and Zimbabwe validate the amphi-equatorial distribution of Byrsinus pseudosyriacus (Hemiptera: Cydnidae) - Supplementary data
<p><em>Byrsinus pseudosyriacus (</em>Linnavuori, 1977), the most widely distributed Afrotropical species of the genus <em>Byrsinus</em> Fieber, 1860 known hitherto only from the Sudano-Eremian area is for the first time reported in two countries south of the Equator. The species potential distribution map was generated using the ecological niche modelling (ENM) methods that allowed this species to be regarded as amphi-equatorial in distribution<strong>.</strong></p>
Data from: Validating dispersal distances inferred from autoregressive occupancy models with genetic parentage assignments
1.Dispersal distances are commonly inferred from occupancy data but have rarely been validated. Estimating dispersal from occupancy data is further complicated by imperfect detection and the presence of unsurveyed patches. 2.We compared dispersal distances inferred from seven years of occupancy data for 212 wetlands in a metapopulation of the secretive and threatened California black rail (Laterallus jamaicensis coturniculus) to distances between parent-offspring dyads identified with 16 microsatellites. 3.We used a novel autoregressive multi-season occupancy model that accounted for both unsurveyed patches and imperfect detection to quantify patch isolation using buffer radius (BRM) and incidence function (IFM) connectivity measures at 15 scales (1–10, 15, 20, 25, and 30 km). Connectivity measures were then fit as colonization covariates in occupancy models to estimate a model-averaged dispersal distance. 4.As predicted, colonization was more strongly related to connectivity at small spatial scales (< 10 km). AIC weights were greatest at 7 km for BRM and at 4 km for IFM. 5.Model-averaged dispersal distances (BRM = 7.46 km; IFM = 5.48 km) showed good agreement with the mean (± SE) dispersal distance from 23 parent-offspring dyads (5.58 ± 1.92 km), indicating reasonably accurate mean dispersal distances can be inferred from occupancy data when isolation strongly affects colonization.
Data from: Development of a sustainability assessment algorithm and its validation using case studies on cryogenic machining
This work presents a comprehensive structure for evaluating the sustainability of machining processes. Industries can contribute towards developing a sustainable future by using algorithms that evaluate the sustainability of their processes. Inspired by the literature, the proposed model involves a set of metrics that are critical in evaluating the impact of a process on society, environment, and economy. The flexibility of this model allows decision-makers to use the available responses to identify the most favorable process. The entropy weight method was suggested for objectively calculating the weights of each indicator. A multi-criteria decision-making method i.e., Technique for Order Preference based on Similarity to Ideal Solution (TOPSIS), was used to rank processes in the decreasing order of their sustainability. The proposed algorithm was successfully validated with case studies from the published literature. A MATLAB code was also created so that industries may expeditiously apply this method to evaluate the sustainability of machining processes.
Paraphyletic species no more – genomic data resolve a Pleistocene radiation and validate morphological species of the Melanoplus scudderi complex (Insecta: Orthoptera)
<p>Rapid speciation events, with taxa generated over a short time period, are among the most investigated biological phenomena. However, molecular systematics often reveals contradictory results compared with morphological/phenotypical diagnoses of species under scenarios of recent and rapid diversification. In this study, we used molecular data from an average of over 29,000 loci per sample from RADseq to reconstruct the diversification history and delimit the species boundary in a short-winged grasshopper species complex (<i>Melanoplus </i>Scudderi group), where Pleistocene diversification has been hypothesized to generate more than 20 putative species with distinct male genitalic shapes. We found that based on a maximum likelihood molecular phylogeny that each morphological species indeed forms a monophyletic group, contrary to the result from a previous mitochondrial DNA sequence study. By dating the diversification events, the species complex is estimated to have diversified during the Late Pleistocene, supporting the recent radiation hypothesis. Furthermore, coalescent-based species delimitation analyses provide quantitative support for independent genetic lineages, which corresponds with the morphologically-defined species. Our results also showed that male genitalic shape may not be predicted by evolutionary distance among species, indicating that this trait is not only labile, but also implying that selection may play a role in character divergence. Additionally, our findings suggest that the rapid speciation events in this flightless grasshopper complex might be associated primarily with the fragmentation of their grassland habitats during the Late Pleistocene. Collectively, our study highlights the importance of integrating multiple sources of information to delineate species, especially for a species complex that diversified rapidly, and whose divergence may be linked to ecological processes that create geographic isolation (i.e., fragmented habitats), as well as selection acting on characters with direct consequences for reproductive isolation (i.e., genitalic divergence).</p>
Data from: Validation of grain yield QTL from soft winter wheat using a CIMMYT spring wheat panel
Validation of quantitative trait loci (QTLs) is an essential step in marker-assisted breeding. The objectives of this study were to validate grain yield (GY) QTLs previously identified in soft red winter wheat (Triticum aestivum L.) through biparental and association mapping using the spring wheat association mapping initiative (WAMI) panel from CIMMYT, Mexico, and to identify allele combinations of the validated QTLs that resulted to the highest GY. Linked single-nucleotide polymorphisms for IWA3560 (3A), IWA1818 (4B), and IWA755 (6B) were significantly associated (P < 0.001) with GY, grain number, and thousand-grain weight in the WAMI. Lines possessing the favorable allele for the QTL at the 3A, 4B, and 6B loci (ACG allele combination) validated on the WAMI had the highest mean GY at 4.55 t ha−1, but three other haplotypes (ACA, GCA, and GCG) differing by one or two alleles in the validated QTL regions were not significantly different. These results validate GY QTLs across winter and spring wheat through genome-wide association analysis and further demonstrate the potential for pyramiding favorable alleles for the genetic improvement of wheat breeding populations.
Data from: Validity of the Diplostomoidea and Diplostomida (Digenea, Platyhelminthes) upheld in phylogenomic analysis
Higher systematics within the Digenea, Carus 1863 have been relatively stable since a phylogenetic analysis of partial nuclear ribosomal markers (rDNA) led to the erection of the Diplostomida Olson, Cribb, Tkach, Bray, and Littlewood, 2003. However, recent mitochondrial (mt) genome phylogenies suggest this order might be paraphyletic. These analyses show members of two diplostomidan superfamilies are more closely related to the Plagiorchiida La Rue, 1957 than to other members of the Diplostomida. In one of the groups implicated, the Diplostomoidea Poirier, 1886, a recent phylogeny based on mt DNA also indicates the superfamily as a whole is non-monophyletic. To determine if these results were robust to additional taxon sampling, we analyzed mt genomes from seven diplostomoids in three families. To choose between phylogenetic alternatives based on mt genomes and the prior rDNA-based topology, we also analyzed hundreds of ultra-conserved elements (UCEs) assembled from shotgun sequencing. The Diplostomida was paraphyletic in the mt genome phylogeny, but supported in the UCE phylogeny. We speculate this mitonuclear discordance is related to ancient, rapid radiation in the Digenea. Both UCEs and mt genomes support the monophyly of the Diplostomoidea and show congruent relationships within it. The Cyathocotylidae Muhling, 1898 are early diverging descendants of a paraphyletic clade of Diplostomidae Poirier, 1886, in which were nested members of the Strigeidae Railliet, 1919; the results support prior suggestions that the Crassiphialinae Sudarikov, 1960 will rise to the family level. Morphological traits of diplostomoid metacercariae appear to be more useful for differentiating higher taxa than those of adults. We describe a new species of Cotylurus Szidat, 1928, resurrect a species of Hysteromorpha Lutz, 1931, and find support for a species of Alaria Schrank, 1788 of contested validity. Complete rDNA operons are provided as a resource for future studies.
Assessing the benefits and risks of translocations in depauperate species: a theoretical framework with an empirical validation
<p>1. Conservation translocations are becoming more common to assist in the management of threatened native species. While many translocation programs focus on maximizing survival in newly established populations, consideration is also required for the persistence of source populations. 2. Here, we present and test a theoretical framework that assesses the translocation trade-off between increasing a species probability of survival and decreasing a species' overall genetic diversity. We anticipate that i) the genetic diversity of translocated populations will be reduced compared to the source due to a failure to capture and retain genetic diversity, and ii) the genetic diversity of the source population will decline due to the removal of founder individuals. 3. We test this framework with an empirical study of redfin blue eye, Scaturiginichthys vermeilipinnis; a critically endangered fish species which has undergone several replicate translocations, established with founders sourced from a single remnant population. Several generations after reintroduction, we show that the predicted survival of the species has improved as a result of these translocations. 4. While the species' genetic diversity has been retained across all populations combined (translocated and source), we show that genetic diversity in each individual population (including the source) is reduced compared to the source population prior to translocation. 5. <i>Synthesis and applications</i>. Conservation translocations can provide great benefits to species survival, enabling extinction risk to be spread across multiple populations. Translocated populations, however, often harbour reduced genetic diversity compared to source populations and initiating translocated populations can decrease the genetic diversity of source populations, placing them at an increased risk of extinction. The framework presented here enables the trade-off between extinction risk and retention of genetic diversity to be established. This will enable the optimal conservation strategy to be employed to increase the long-term persistence and evolutionary potential of a species.</p>
Psychosocial functioning before and after surgical treatment for morbid obesity: Reliability and validity of the Norwegian version of obesity-related problems scale
<p>This is a dataset (SPSS, sav. file) related to the study "Psychosocial functioning before and after surgical treatment for morbid obesity: Reliability and validity of the Norwegian version of obesity-related problems scale". If anyone wants the file in a different format, contact the uploader (see thelink on the right)</p>
Validity of two automatic artifact reduction software methods in ictal EEG interpretation. Dataset 1
<p>Unprocessed electroencephalogram recordings of seizures from deidentified study patients with epilepsy prior to and following processing using the AR2 (artifact reduction 2) software method. The files are stored in European Data Format (.EDF). "_out" files have been processed by AR2.</p>
Empirical validation of CodeCity - A controlled experiment
<p>Reference</p> <p>Studies who have been using the data (in any form) are required to include the following reference:</p> <p>@inproceedings{Wettel:2011:SSC:1985793.1985868, author = {Wettel, Richard and Lanza, Michele and Robbes, Romain}, title = {Software Systems As Cities: A Controlled Experiment}, booktitle = {Proceedings of the 33rd International Conference on Software Engineering}, series = {ICSE '11}, year = {2011}, isbn = {978-1-4503-0445-0}, location = {Waikiki, Honolulu, HI, USA}, pages = {551--560}, numpages = {10}, url = {http://doi.acm.org/10.1145/1985793.1985868}, doi = {10.1145/1985793.1985868}, acmid = {1985868}, publisher = {ACM}, address = {New York, NY, USA}, keywords = {empirical validation, software visualization}, }</p> <p>About the Data</p> <p>Overview of Data</p> <p>This paper provided the complete raw and processed data for the controlled experiment for the empirical evaluation of a 3D software visualization approach based on a city metaphor and implemented in a tool called CodeCity. This includes and is not limited to the pre-experiment, in-experiment and debriefing questionnaires, solution oracles and grading systems, correction scores and measured completion time.</p> <p>Attribute Information</p> <p>Debriefing questionnaires, solution oracles and grading systems, correction scores and measured completion time</p> <p>Paper Abstract</p> <p>Software visualization is a popular program comprehension technique used in the context of software maintenance, reverse engineering, and software evolution analysis. While there is a broad range of software visualization approaches, only few have been empirically evaluated. This is detrimental to the acceptance of software visualization in both the academic and the industrial world. We present a controlled experiment for the empirical evaluation of a 3D software visualization approach based on a city metaphor and implemented in a tool called CodeCity. The goal is to provide experimental evidence of the viability of our approach in the context of program comprehension by having subjects perform tasks related to program comprehension. We designed our experiment based on lessons extracted from the current body of research. We conducted the experiment in four locations across three countries, involving 41 participants from both academia and industry. The experiment shows that CodeCity leads to a statistically significant increase in terms of task correctness and decrease in task completion time. We detail the experiment we performed, discuss its results and reflect on the many lessons learned.</p>
JavaScript and html Validity Errors
<p>This data is captured by tool ‘Artemis’, which is a test generation tool for javascript based web applications. The data contained here has benchmarks and html validity errors found out by Artemis tool, when ran against live applications. This data can be used to analyse the html coding errors committed by the programmers and see how we can prevent these errors.</p>
Screen Capture & Audior Recordings - Empirical Study "Business Process Model Validation Through Virtual Enactment"
<p>Screen captures of task completion and audio recordings of interviews of the empirical study which has been conducted within the context of the master thesis "Business Process Model Validation Through Virtual Enactment"</p>
MDSINE2 Cross-Validation Analysis (Healthy Cohort)
<p>MDSINE2 Inference Analysis files. This archive contains all output files from the cross-validation inference (with comparator analysis included) for Healthy cohort. (Both healthy and dysbiotic cohorts are required to run the Jupyter Notebook (`fig4_semisynthetic_v2_cache.ipynb`) on our MDSINE2_Paper repo. For the Dysbiotic cohort files, refer to <a href="https://zenodo.org/records/16915340" target="_blank" rel="noopener">https://zenodo.org/records/16915340</a>.</p> <p>For the full project/source pipeline, refer to <a href="https://github.com/gerberlab/MDSINE2_Paper">https://github.com/gerberlab/MDSINE2_Paper</a>.</p> <p>The archive here was created using the command `tar --zstd -cvf`, and then split using the unix "split" command. To unpack these files, please use the following command:</p> <pre><code>cat cross_validation_healthy.tar.zst.part* > cross_validation_healthy.tar.zst tar -I zstd -xvf cross_validation_healthy.tar.zst</code></pre> <p>These files should be unpacked and placed in the paper repository directory (wherever you did `git clone`), so that the `datasets` directory is directly inside `MDSINE2_Paper` repository directory. </p> <p>------------</p> <p>Related zenodo records:</p> <p><a href="https://doi.org/10.5281/zenodo.8208502">https://doi.org/10.5281/zenodo.8208502</a> -- Full MDSINE2 inference on Healthy cohort</p> <p><a href="https://doi.org/10.5281/zenodo.16915340">https://doi.org/10.5281/zenodo.16915340</a> -- MDSINE2 Cross-Validation run (Dysbiotic cohort)</p> <p><a href="https://doi.org/10.5281/zenodo.16915311">https://doi.org/10.5281/zenodo.16915311</a> -- MDSINE2 semisynthetic dataset</p>
Dataset for Verification and Validation Tests of the Spalart-Allmaras Model in Moltres
<p>This repository contains input files, raw output data, data analysis scripts, and plots for verification and validation tests of the Spalart-Allmaras turbulence model in Moltres. These V&V tests consist of numerical simulations of turbulent channel, pipe, and backward-facing step flows based on the works by Moser et al. (1999), Laufer (1954), and Driver & Seegmiller (1985), respectively.</p>
Validation communities
<p>Locations of communities in Blantyre city that were located and mapped. </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.