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201 results for “Controlled experiment”
Experimental Data for: Hierarchical Software Landscape Visualization for System Comprehension: A Controlled Experiment
<p>In many enterprises the number of deployed applications is constantly increasing. Those applications - often several hundreds - form large software landscapes. The comprehension of such landscapes is frequently impeded due to, for instance, architectural erosion, personnel turnover, or changing requirements. Therefore, an efficient and effective way to comprehend such software landscapes is required. The current state of the art often visualizes software landscapes via flat graph-based representations of nodes, applications, and their communication.</p> <p>In our ExplorViz visualization, we introduce hierarchical abstractions aiming at solving typical system comprehension tasks fast and accurately for large software landscapes. To evaluate our hierarchical approach, we conduct a controlled experiment comparing our hierarchical landscape visualization to a flat, state-of-the-art visualization. In addition, we thoroughly analyze the strategies employed by the participants and provide a package containing all our experimental data to facilitate the verifiability, reproducibility, and further extensibility of our results.</p> <p>We observed a statistically significant increase of 14 % in task correctness of the hierarchical visualization group compared to the flat visualization group in our experiment. The time spent on the system comprehension tasks did not show any significant differences. The results backup our claim that our hierarchical concept enhances the current state of the art in landscape visualization.</p> <p>This package contains our experimental data.</p>
Results of preliminary screening tests for all dyslexic and control participants (ACI experiment)
<p>Participants' gender, ages, handedness. Results of Raven's test, Reading test, Memory span test, ANT test, and audiogram</p>
Single-cell ATAC-seq control of cross-contaminations (experiment 2)
<p>On the Fluidigm C1 platform for single-cell analysis, the cells are captured in 96 chambers arranged serially, and then washed before further processing. Thus, debris present from the loading medium or released by captured cells upstream are a possible source of contamination. We generated a control datasets using the single-cell ATAC-seq protocol available from Fluidigm's ScriptHub. We cultivated human Hep G2 and mouse Hepa 1-6 (both are liver cancer cell lines), stained them with green and red calceins (respectively), and loaded them at equal concentration in a Fluidigm medium flow cell (old design), before running the C1 single-cell ATAC-seq program. To evaluate damage and carry-over of debris from FACS-sorting, two IFCs were run in two C1 machines in parallel. In the first (flowcell ID 1772-123-155), the cells not washed and in the second, they were washed (ID 1772-123-158).</p> <p>The data deposited here is a sequencing run (Illumina MiSeq) of these ATAC-seq libraries. The metadata indicating the contents of each well is being uploaded separately and this record will be updated once the DOIs are available.</p>
Single-cell ATAC-seq control of cross-contaminations (experiment 1)
<p>On the Fluidigm C1 platform for single-cell analysis, the cells are captured in 96 chambers arranged serially, and then washed before further processing. Thus, debris present from the loading medium or released by captured cells upstream are a possible source of contamination. We generated a control datasets using the single-cell ATAC-seq protocol available from Fluidigm's ScriptHub. We cultivated human Hep G2 and mouse Hepa 1-6 (both are liver cancer cell lines), stained them with green and red calceins (respectively), and loaded them at equal concentration in a Fluidigm medium flow cell (old design), before running the C1 single-cell ATAC-seq program.</p> <p>The data deposited here is a sequencing run (Illumina MiSeq) of these ATAC-seq libraries. The metadata indicating the contents of each well is being uploaded separately and this record will be updated once the DOIs are available.</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>
Figure 4 in Reproduction of Zingel asper (Linnaeus, 1758) in controlled conditions: an assessment of the experiences realized since 2005 at the Besançon Natural History Museum
Figure 4. – Female (in front) with 3 males in the current just before the expulsion of ova.
Figure 7 in Reproduction of Zingel asper (Linnaeus, 1758) in controlled conditions: an assessment of the experiences realized since 2005 at the Besançon Natural History Museum
Figure 7. – Health of gills. A: Early signs of mycosis on gills; B: Healthy gills.
Artifacts of a Controlled Experiment About the Impact of Microservice API Patterns on Understandability
<p>This repository includes the data set of responses from 66 participants and the analysis scripts of a controlled experiment about the impact of microservice API patterns on understandability.</p>
Raw results of the simulation experiments performed to evaluate the Time-to-idle Control Variate ferformance in the single queue case
<p>This zip file contains the simulation results, gnuplot script and data files needed to generate the figures showing the simulation results presented in [1].</p> <p>[1] Suárez-González A., López-García C., López-Ardao J.C., Rodríguez Rubio R., Rodríguez Pérez M. (2021). "Time-to-idle Control Variate Performance in the Single Queue Case". Proceedings of the 33rd European Modeling & Simulation Symposium (EMSS 2021), pp. 147-151. DOI: https://doi.org/10.46354/i3m.2021.emss.020</p>
Data for: Evaluation of Methods for Eliciting and Specifying Usability Requirements using User Stories: A Controlled Experiment
<p>Este projeto contém os materiais utilizados na pesquisa intitulada Evaluation of Methods for Eliciting and Specifying Usability Requirements using User Stories: A Controlled Experiment: TCLE, Formulário de Caracterização, Cenário, Oráculo, User Stories, Protótipo, Storyboards, Avaliação de ferramentas em escala de Likert e Dados coletados do formulário.</p>
Raw Data for the article: Transjugular Intrahepatic Portosystemic Shunt: A Single-Centre Mid-term Experience Using the Viatorr Controlled-Expansion Stent
<p>Authors reported a high incidence of hepatic encephalopathy (HE) using the Viatorr Controlled Expansion stent (VCX) (Gore, Flagstaff AZ) in a cohort of 33 patients underwent transjugular intrahepatic portosystemic shunt (TIPS) creation. In detail 6 and 12 month overall HE rate was 53% and 61%. Those results are different as compared to our preliminary experience, with the same stent, in which the overall HE rate was 22% in a cohort of 75 patients and with a mean follow up of 5.8 months.</p>
(PDF-like) An Ontology for Supporting Digital Forensics Controlled Experiments: Early Stages of Development - Figures
<p>Figures from An Ontology for Supporting Digital Forensics Controlled Experiments: Early Stages of Development</p>
Data for the Attosecond coherent-control experiment at FEL FERMI
<p>In the excel sheets, data corresponding to the attosecond coherent control experiment has been provided. A word file is included to explain the data in the different excel sheets. </p>
Raw data for the article "Combining STPA and BDD for Safety Analysis and Verification in Agile Development: A Controlled Experiment"
<p>These files include the raw data of pre-questionnaire, operation report, post-questionnaire and hypothesis testing in the experiment. </p>
Data of SST patch experiments, Part3: control experiment
<p>This dataset is control experiments of the SST patch experiments, which can be used to test the statistical significances between the differences in conjugate patch experiments.</p>
Constrained Control of UAVs in Geofencing Applications: Experiments
<p>Videos of the experiments for the paper "Constrained Control of UAVs in Geofencing Applications".</p> <p>Experimental results of the AR Drone flying in a constrained environment. There are three successive experiments:</p> <ol> <li>Wall constraint (without ERG): the first experiment consists in moving the UAV to a certain position (allowed). After it is stabilized, we set the desired point in an inadmissible region. Without the ERG, the UAV goes beyond the net (violating the constraint).</li> <li>Wall constraint (with ERG): the second experiment consists in moving first the UAV to a safe position where it hovers. Then, we set the desired point outside the admissible region. With the ERG implemented, the UAV moves safely towards the reference but stops at the net, minimizing the distance with the reference.</li> <li>Obstacle constraint (with ERG): The third experiment consists in first hovering the UAV at the origin. Then, the desired position is set behind the obstacle (PVC pipe). In non-constrained operation, the UAV moves in a straight line and hits the object, but with the ERG, the UAV avoids the obstacle and reaches the desired point in a safe way.</li> </ol>
Postprocessed output from VR-CESM with refinement over the greater Greenland area and a CAM-SE control experiment
<p>This dataset contains post-processed monthly output from two VR-CESM simulations that were performed with CAM5.4 and CLM5, with refinement patches over the greater Greenland area. Data from a standard, quasi-uniform CAM-SE simulations is included as well. These are the data that are analysed and discussed by our paper in The Cryosphere, <a href="https://www.the-cryosphere-discuss.net/tc-2018-257/">https://www.the-cryosphere-discuss.net/tc-2018-257/</a>.</p> <p>The postprocessing involved (A) regridding from the respective unstructured CAM grids to regular latitude-longitude grids to allow for easy plotting and comparison, (B) vertical interpolation of some atmospheric fields to constant pressure levels, and (C) averaging in time to compute climatological means and variances.</p> <p><strong>Contact</strong><br> Leo van Kampenhout (L.vankampenhout@uu.nl)</p> <p><strong>Raw data</strong><br> The raw, ungridded monthly timeseries data are currently available on NCAR's HPSS tape system, under file path /home/lvank/archive_pp, and can be requested through the contact person. There exists also daily data for selected variables.</p> <p><strong>Dataset contents</strong></p> <pre><code>Global_Uniform.tar Global_VR28.tar Global_VR55.tar</code></pre> <p>Atmospheric CAM output regridded to a global regular 1 degree latitude-longitude grid. Variables are PHIS, T200, T500, T700, Z200, Z500, Z700.</p> <pre><code>Greenland_0.25_Uniform.tar Greenland_0.25_VR28.tar Greenland_0.25_VR55.tar</code></pre> <p>Atmospheric CAM output and CLM land model output regridded to a 0.25x0.25 degree grid stretching from 40N - 90N and 100W - 0W. Variables are FLDS, FLNS, FSDS, FSNS, H2OSNO, LHFLX, SHFLX, PHIS, PRECC, PRECL, PRECSC, PRECSL, TGCLDCWP, TREFHT, TSOI_10CM, TS, U10.</p> <pre><code>acab_c2b8_UNI_fdm.004_timmean.nc acab_c2b8_VRGRN_28.005_timmean.nc acab_c2b8_VRGRN_55.005_timmean.nc</code></pre> <p>Downscaled SMB on the 4km CISM grid, in meters of ice equivalent. These files represent time means over the period 1980-1999.</p> <pre><code> cism_thickness.nc </code></pre> <p>CISM ice thickness and ice elevation at 4 km. Note that the ice sheet was non-evolving in our simulations, so both these fields are constant in time.</p>
SFigure1. OTUs at genus level significantly different (p<0.05) between rumen samples of cows fed control and cold-pressed sunflower cake in the first period of the experiment (n=5).
<p>OTUs at genus level significantly different (p<0.05) between rumen samples of cows fed control and cold-pressed sunflower cake in the first period of the experiment (n=5). </p>
Data from a controlled drought experiment in greenhouse conditions on saplings of Prunus spinosa
<p>Dataset with measurements and observations on saplings of Prunus spinosa in a common garden setting (three European populations are included), that were treated with water withholding in the summer of 2021 in greenhouse conditions.</p> <p>One dataset contains the data on all 274 saplings that are included in the experiment. The second dataset contains measurements and counts of stomata on a subset of 57 saplings. The two datasets can be connected by the plant ID.</p>
RNA-seq data and results from in-vitro experiments for "Genetic control of fetal placental genomics contributes to development of health and disease" (Bhattacharya et al 2021)
<p>This dataset includes data and results from RNA-seq data collected from in-vitro experiments presented in "Genetic control of fetal placental genomics contributes to development of health and disease" (Bhattacharya et al 2021). Please check the README.txt file for more details.</p>
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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.