Dataset used in the article entitled 'Synthetic Datasets Generator for Testing Information Visualization and Machine Learning Techniques and Tools'. These datasets can be used to test several characteristics in machine learning and data processing algorithms.

Dataset Card for test-data-generator

This dataset has been created with distilabel.

  Dataset Summary

This dataset contains a pipeline.yaml which can be used to reproduce the pipeline that generated it in distilabel using the distilabel CLI: distilabel pipeline run --config "https://huggingface.co/datasets/franciscoflorencio/test-data-generator/raw/main/pipeline.yaml"

or explore the configuration: distilabel pipeline info --config… See the full description on the dataset page: https://huggingface.co/datasets/franciscoflorencio/test-data-generator.

This data set contains the result of applying the NIST Statistical Test Suite on accelerometer data processed for random number generator seeding. The NIST Statistical Test Suite can be downloaded from: http://csrc.nist.gov/groups/ST/toolkit/rng/documentation_software.html. The format of the output is explained in http://csrc.nist.gov/publications/nistpubs/800-22-rev1a/SP800-22rev1a.pdf.

Introduction

This repository hosts the Testing Roads for Autonomous VEhicLes (TRAVEL) dataset. TRAVEL is an extensive collection of virtual roads that have been used for testing lane assist/keeping systems (i.e., driving agents) and data from their execution in state of the art, physically accurate driving simulator, called BeamNG.tech. Virtual roads consist of sequences of road points interpolated using Cubic splines.

Along with the data, this repository contains instructions on how to install the tooling necessary to generate new data (i.e., test cases) and analyze them in the context of test regression. We focus on test selection and test prioritization, given their importance for developing high-quality software following the DevOps paradigms.

This dataset builds on top of our previous work in this area, including work on

test generation (e.g., AsFault, DeepJanus, and DeepHyperion) and the SBST CPS tool competition (SBST2021),

test selection: SDC-Scissor and related tool

test prioritization: automated test cases prioritization work for SDCs.

Dataset Overview

The TRAVEL dataset is available under the data folder and is organized as a set of experiments folders. Each of these folders is generated by running the test-generator (see below) and contains the configuration used for generating the data (experiment_description.csv), various statistics on generated tests (generation_stats.csv) and found faults (oob_stats.csv). Additionally, the folders contain the raw test cases generated and executed during each experiment (test..json).

The following sections describe what each of those files contains.

Experiment Description

The experiment_description.csv contains the settings used to generate the data, including:

Time budget. The overall generation budget in hours. This budget includes both the time to generate and execute the tests as driving simulations.

The size of the map. The size of the squared map defines the boundaries inside which the virtual roads develop in meters.

The test subject. The driving agent that implements the lane-keeping system under test. The TRAVEL dataset contains data generated testing the BeamNG.AI and the end-to-end Dave2 systems.

The test generator. The algorithm that generated the test cases. The TRAVEL dataset contains data obtained using various algorithms, ranging from naive and advanced random generators to complex evolutionary algorithms, for generating tests.

The speed limit. The maximum speed at which the driving agent under test can travel.

Out of Bound (OOB) tolerance. The test cases' oracle that defines the tolerable amount of the ego-car that can lie outside the lane boundaries. This parameter ranges between 0.0 and 1.0. In the former case, a test failure triggers as soon as any part of the ego-vehicle goes out of the lane boundary; in the latter case, a test failure triggers only if the entire body of the ego-car falls outside the lane.

Experiment Statistics

The generation_stats.csv contains statistics about the test generation, including:

Total number of generated tests. The number of tests generated during an experiment. This number is broken down into the number of valid tests and invalid tests. Valid tests contain virtual roads that do not self-intersect and contain turns that are not too sharp.

Test outcome. The test outcome contains the number of passed tests, failed tests, and test in error. Passed and failed tests are defined by the OOB Tolerance and an additional (implicit) oracle that checks whether the ego-car is moving or standing. Tests that did not pass because of other errors (e.g., the simulator crashed) are reported in a separated category.

The TRAVEL dataset also contains statistics about the failed tests, including the overall number of failed tests (total oob) and its breakdown into OOB that happened while driving left or right. Further statistics about the diversity (i.e., sparseness) of the failures are also reported.

Test Cases and Executions

Each test..json contains information about a test case and, if the test case is valid, the data observed during its execution as driving simulation.

The data about the test case definition include:

The road points. The list of points in a 2D space that identifies the center of the virtual road, and their interpolation using cubic splines (interpolated_points)

The test ID. The unique identifier of the test in the experiment.

Validity flag and explanation. A flag that indicates whether the test is valid or not, and a brief message describing why the test is not considered valid (e.g., the road contains sharp turns or the road self intersects)

The test data are organized according to the following JSON Schema and can be interpreted as RoadTest objects provided by the tests_generation.py module.

{ "type": "object", "properties": { "id": { "type": "integer" }, "is_valid": { "type": "boolean" }, "validation_message": { "type": "string" }, "road_points": { §\label{line:road-points}§ "type": "array", "items": { "$ref": "schemas/pair" }, }, "interpolated_points": { §\label{line:interpolated-points}§ "type": "array", "items": { "$ref": "schemas/pair" }, }, "test_outcome": { "type": "string" }, §\label{line:test-outcome}§ "description": { "type": "string" }, "execution_data": { "type": "array", "items": { "$ref" : "schemas/simulationdata" } } }, "required": [ "id", "is_valid", "validation_message", "road_points", "interpolated_points" ] }

Finally, the execution data contain a list of timestamped state information recorded by the driving simulation. State information is collected at constant frequency and includes absolute position, rotation, and velocity of the ego-car, its speed in Km/h, and control inputs from the driving agent (steering, throttle, and braking). Additionally, execution data contain OOB-related data, such as the lateral distance between the car and the lane center and the OOB percentage (i.e., how much the car is outside the lane).

The simulation data adhere to the following (simplified) JSON Schema and can be interpreted as Python objects using the simulation_data.py module.

{ "$id": "schemas/simulationdata", "type": "object", "properties": { "timer" : { "type": "number" }, "pos" : { "type": "array", "items":{ "$ref" : "schemas/triple" } } "vel" : { "type": "array", "items":{ "$ref" : "schemas/triple" } } "vel_kmh" : { "type": "number" }, "steering" : { "type": "number" }, "brake" : { "type": "number" }, "throttle" : { "type": "number" }, "is_oob" : { "type": "number" }, "oob_percentage" : { "type": "number" } §\label{line:oob-percentage}§ }, "required": [ "timer", "pos", "vel", "vel_kmh", "steering", "brake", "throttle", "is_oob", "oob_percentage" ] }

Dataset Content

The TRAVEL dataset is a lively initiative so the content of the dataset is subject to change. Currently, the dataset contains the data collected during the SBST CPS tool competition, and data collected in the context of our recent work on test selection (SDC-Scissor work and tool) and test prioritization (automated test cases prioritization work for SDCs).

SBST CPS Tool Competition Data

The data collected during the SBST CPS tool competition are stored inside data/competition.tar.gz. The file contains the test cases generated by Deeper, Frenetic, AdaFrenetic, and Swat, the open-source test generators submitted to the competition and executed against BeamNG.AI with an aggression factor of 0.7 (i.e., conservative driver).

    Name
    Map Size (m x m)
    Max Speed (Km/h)
    Budget (h)
    OOB Tolerance (%)
    Test Subject




    DEFAULT
    200 × 200
    120
    5 (real time)
    0.95
    BeamNG.AI - 0.7


    SBST
    200 × 200
    70
    2 (real time)
    0.5
    BeamNG.AI - 0.7

Specifically, the TRAVEL dataset contains 8 repetitions for each of the above configurations for each test generator totaling 64 experiments.

SDC Scissor

With SDC-Scissor we collected data based on the Frenetic test generator. The data is stored inside data/sdc-scissor.tar.gz. The following table summarizes the used parameters.

    Name
    Map Size (m x m)
    Max Speed (Km/h)
    Budget (h)
    OOB Tolerance (%)
    Test Subject




    SDC-SCISSOR
    200 × 200
    120
    16 (real time)
    0.5
    BeamNG.AI - 1.5

The dataset contains 9 experiments with the above configuration. For generating your own data with SDC-Scissor follow the instructions in its repository.

Dataset Statistics

Here is an overview of the TRAVEL dataset: generated tests, executed tests, and faults found by all the test generators grouped by experiment configuration. Some 25,845 test cases are generated by running 4 test generators 8 times in 2 configurations using the SBST CPS Tool Competition code pipeline (SBST in the table). We ran the test generators for 5 hours, allowing the ego-car a generous speed limit (120 Km/h) and defining a high OOB tolerance (i.e., 0.95), and we also ran the test generators using a smaller generation budget (i.e., 2 hours) and speed limit (i.e., 70 Km/h) while setting the OOB tolerance to a lower value (i.e., 0.85). We also collected some 5, 971 additional tests with SDC-Scissor (SDC-Scissor in the table) by running it 9 times for 16 hours using Frenetic as a test generator and defining a more realistic OOB tolerance (i.e., 0.50).

Generating new Data

Generating new data, i.e., test cases, can be done using the SBST CPS Tool Competition pipeline and the driving simulator BeamNG.tech.

Extensive instructions on how to install both software are reported inside the SBST CPS Tool Competition pipeline Documentation;

Static torque, no load, constant speed, and sinusoidal oscillation test data for a 10hp, 300rpm magnetically-geared generator prototype using either an adjustable load bank for a fixed resistance or an output power converter.

The global database testing tool market is anticipated to experience substantial growth in the coming years, driven by factors such as the increasing adoption of cloud-based technologies, the rising demand for data quality and accuracy, and the growing complexity of database systems. The market is expected to reach a value of USD 1,542.4 million by 2033, expanding at a CAGR of 7.5% during the forecast period of 2023-2033. Key players in the market include Apache JMeter, DbFit, SQLMap, Mockup Data, SQL Test, NoSQLUnit, Orion, ApexSQL, QuerySurge, DBUnit, DataFactory, DTM Data Generator, Oracle, SeLite, SLOB, and others. The North American region is anticipated to hold a significant share of the database testing tool market, followed by Europe and Asia Pacific. The increasing adoption of cloud-based database testing services, the presence of key market players, and the growing demand for data testing and validation are driving the market growth in North America. Asia Pacific, on the other hand, is expected to experience the highest growth rate due to the rapidly increasing IT spending, the emergence of new technologies, and the growing number of businesses investing in data quality management solutions.

The global generator test load bank market is experiencing robust growth, driven by increasing demand for reliable power generation and stringent testing regulations across various industries. The market size in 2025 is estimated at $1.5 billion, exhibiting a Compound Annual Growth Rate (CAGR) of 7% from 2025 to 2033. This growth is fueled by several key factors. The expansion of data centers, the rising adoption of renewable energy sources requiring rigorous testing, and the growing need for efficient power generation in industrial sectors like shipping and power plants are major contributors. Furthermore, advancements in load bank technology, including the development of more compact, efficient, and digitally controlled units, are enhancing market appeal. The adoption of resistive-reactive load banks, offering greater flexibility and accuracy in testing, is also driving market expansion. Regional growth is expected to be diverse, with North America and Asia-Pacific leading the charge due to strong economic growth and substantial investments in infrastructure. However, certain restraints exist. High initial investment costs associated with advanced load bank systems might hinder adoption, particularly among smaller enterprises. Additionally, fluctuations in raw material prices and the complexity of integrating these systems into existing infrastructure pose challenges. Nevertheless, ongoing technological improvements and increasing awareness of the crucial role of generator testing in ensuring power reliability are projected to mitigate these obstacles. The market segmentation reveals significant opportunities in various applications, notably data center generator testing and the growing renewable energy sector. Key players are focusing on product innovation, strategic partnerships, and expansion into new geographical markets to strengthen their market position and capitalize on this growth trajectory. The market is poised for continued expansion, with significant potential for growth across diverse geographical regions and application segments.

This software tool generates simulated radar signals and creates RF datasets. The datasets can be used to develop and test detection algorithms by utilizing machine learning/deep learning techniques for the 3.5 GHz Citizens Broadband Radio Service (CBRS) or similar bands. In these bands, the primary users of the band are federal incumbent radar systems. The software tool generates radar waveforms and randomizes the radar waveform parameters. The pulse modulation types for the radar signals and their parameters are selected based on NTIA testing procedures for ESC certification, available at http://www.its.bldrdoc.gov/publications/3184.aspx. Furthermore, the tool mixes the waveforms with interference and packages them into one RF dataset file. The tool utilizes a graphical user interface (GUI) to simplify the selection of parameters and the mixing process. A reference RF dataset was generated using this software. The RF dataset is published at https://doi.org/10.18434/M32116.

The online test creator market is experiencing robust growth, driven by the increasing adoption of digital learning platforms and the need for efficient assessment tools across various sectors. The market, estimated at $2 billion in 2025, is projected to expand at a compound annual growth rate (CAGR) of 15% from 2025 to 2033, reaching an estimated market value of $6 billion by 2033. This growth is fueled by several key factors. Firstly, the rising popularity of e-learning and online education necessitates effective assessment methods, leading to increased demand for user-friendly and feature-rich test creation software. Secondly, businesses are increasingly leveraging online tests for recruitment, training, and customer feedback, further boosting market demand. The diverse applications across education, corporate training, and market research contribute to market segmentation, with the education sector (teachers and trainers) currently dominating market share. Technological advancements, such as AI-powered question generation and automated grading features, are shaping market trends, creating opportunities for innovative solutions. The prevalence of mobile devices, reflected in the demand for Android and iOS compatible platforms, is another key trend impacting market expansion. However, the market also faces certain restraints. Concerns regarding data security and privacy, along with the need for continuous platform updates and maintenance, pose challenges. The market’s competitive landscape is characterized by a mix of established players and emerging startups, leading to intense competition and a focus on innovation and differentiation. Geographic segmentation reveals a strong presence in North America and Europe, driven by high technology adoption rates and advanced educational infrastructure. However, rapidly developing economies in Asia-Pacific and the Middle East and Africa are emerging as promising growth areas with increasing internet penetration and digital literacy. The continuous evolution of online assessment technology ensures the market will continue to adapt and evolve, presenting exciting opportunities for businesses to invest in and capitalize upon.

The Test Creator App market has emerged as a pivotal segment within the educational technology landscape, facilitating the seamless creation and administration of assessments across various sectors, including education, corporate training, and professional certification. These innovative applications empower educato

The dataset contains 350 features engineered from the phasor measurements (PMU-type) signals from the IEEE New England 39-bus power system test case network, which are generated from the 9360 systematic MATLAB®/Simulink electro-mechanical transients simulations. It was prepared to serve as a convenient and open database for experimenting with different types of machine learning techniques for transient stability assessment (TSA) of electrical power systems.

Different load and generation levels of the New England 39-bus benchmark power system were systematically covered, as well as all three major types of short-circuit events (three-phase, two-phase and single-phase faults) in all parts of the network. The consumed power of the network was set to 80%, 90%, 100%, 110% and 120% of the basic system load levels. The short-circuits were located on the busbar or on the transmission line (TL). When they were located on a TL, it was assumed that they can occur at 20%, 40%, 60%, and 80% of the line length. Features were obtained directly from the time-domain signals at the pickup time (pre-fault value) and at the trip time (post-fault value) of the associated distance protection relays.

This is a stochastic dataset of 3120 cases, created from the population of 9360 systematic simulations, which features a statistical distribution of different fault types, as follows: single-phase (70%), double-phase (20%) and three-phase faults (10%). It also features a class imbalance, with less than 20% of cases belonging to the unstable class. Dataset is a compressed CSV file.

List of feature names in the dataset:

WmGx - rotor speed for each generator Gx, from G1 to G10,

DThetaGx - rotor angle deviation for each generator Gx, from G1 to G10,

ThetaGx - rotor mechanical angle for each generator Gx, from G1 to G10,

VtGx - stator voltage for each generator Gx, from G1 to G10,

IdGx - stator d-component current for each generator Gx, from G1 to G10,

IqGx - stator q-component current for each generator Gx, from G1 to G10,

LAfvGx - pre-fault power load angle for each generator Gx, from G1 to G10,

LAlvGx - post-fault power load angle for each generator Gx, from G1 to G10,

PfvGx - pre-falut value of the generator active power for each generator Gx, from G1 to G10,

PlvGx - post-falut value of the generator active power for each generator Gx, from G1 to G10,

QfvGx - pre-falut value of the generator reactive power for each generator Gx, from G1 to G10,

QlvGx - post-falut value of the generator reactive power for each generator Gx, from G1 to G10,

VAfvBx - pre-fault bus voltage magnitude in phase A for each bus Bx, from B1 to B39,

VBfvBx - pre-fault bus voltage magnitude in phase B for each bus Bx, from B1 to B39,

VCfvBx - pre-fault bus voltage magnitude in phase C for each bus Bx, from B1 to B39,

VAlvBx - post-fault bus voltage magnitude in phase A for each bus Bx, from B1 to B39,

VBlvBx - post-fault bus voltage magnitude in phase B for each bus Bx, from B1 to B39,

VClvBx - post-fault bus voltage magnitude in phase C for each bus Bx, from B1 to B39,

Stability - binary indicator (0/1) that determines if the power system was stable or unstable (0 - stable, 1 - unstable); this is the label variable.

License: Creative Commons CC-BY.

Disclaimer: This dataset is provided "as is", without any warranties of any kind.

The datasets were used to validate and test the data pipeline deployment following the RADON approach. The dataset contains temperature and humidity sensor readings of a particular day, which are synthetically generated using a data generator and are stored as JSON files to validate and test (performance/load testing) the data pipeline components.

No Publication Abstract is Available

Africa Data Center Generator Market is expected to grow during 2025-2031

This video shows the function test of a 5 kW Generator using the Biodiesel obtained from the Neem oil as a biofuel.

The high-speed digital signal generator market is experiencing robust growth, driven by the increasing demand for high-bandwidth communication systems in sectors like 5G, data centers, and automotive. The market's expansion is fueled by the need for accurate and reliable signal generation for testing high-speed digital designs and components. Advancements in technology, such as the development of higher frequency generators and improved signal fidelity, are further propelling market growth. Furthermore, the rising adoption of advanced testing techniques and the growing complexity of electronic devices necessitates the use of sophisticated high-speed digital signal generators, thereby increasing market demand. We estimate the market size in 2025 to be approximately $1.5 billion, based on observed growth trends in related sectors and expert analysis. A compound annual growth rate (CAGR) of around 8% is projected from 2025 to 2033, indicating significant market expansion in the coming years. Major players such as Keysight Technologies, Rohde & Schwarz, and Tektronix dominate the market, leveraging their strong brand reputation and technological expertise. However, the market is also witnessing the emergence of smaller companies specializing in niche applications and offering innovative solutions. The competitive landscape is marked by ongoing product development, strategic partnerships, and mergers and acquisitions. While the high cost of these advanced generators can be a restraining factor for some users, the long-term benefits in terms of improved testing accuracy and efficiency outweigh this consideration, ultimately driving market adoption. Regional growth is expected to vary, with North America and Asia-Pacific likely leading due to the concentration of technological advancements and strong demand from various industries in these regions.

Generating tests for games is challenging due to the high degree of randomisation inherent to games and hard-to-reach program states that require sophisticated gameplay. The test generator NEATEST tackles these challenges by combining search-based software testing principles with neuroevolution to optimise neural networks that serve as test cases. However, since NEATEST is designed as a single-objective algorithm, it may require a long time to cover fairly simple program states or may even get stuck trying to reach unreachable program states. In order to resolve these shortcomings of NEATEST, this work aims to transform the algorithm into a many-objective search algorithm that targets several program states simultaneously. To this end, we combine the neuroevolution algorithm NEATEST with the two established search-based software testing algorithms, MIO and MOSA. Moreover, we adapt the existing many-objective neuroevolution algorithm NEWS/D to serve as a test generator. Our experiments on a dataset of 20 SCRATCH programs show that extending NEATEST to target several objectives simultaneously increases the average branch coverage from 75.88% to 81.33% while reducing the required search time by 93.28%.

This is a test dataset

In this research, an experimental test rig of a dual-piston air-driven free-piston linear expander (FPLE) is established using the FPE concept. A linear generator is used to convert the mechanical work of the pistons into electricity during the expansion process. The piston dynamics, the output voltage of the generator, and the expander operation frequency, as well as the system energy conversion efficiency are identified. It is observed that the piston displacement profile is similar with a sinusoidal wave. The piston is found to run at relative high speed during the middle stroke, and peak velocity is usually achieved when the piston approaches the middle stroke. The output voltage of the generator is sensitive with the piston velocity. With higher driven pressure, the expander frequency is higher. The energy conversion efficiency increases with higher driven pressure and can reach up to 55% with a driven pressure of 3.75 bar. This research presents a fundamental analysis of a FPLE prototype, which can be used as a guidance for the future design of this FPLE type.