📊 Data Science

Anomaly Detection Point Cloud (2D)New📱A 2D point cloud where normal data clusters tightly around a robust centroid while injected… Metadata Validation Pipeline: FAIR Data Gates (2D)New📱A 2D pipeline where hive sensor records pass through three FAIR-compliance metadata gates… Mutual Information Lab (2D)New📱A 2D heatmap and scatter plot showing mutual information staying high for nonlinear and… Predictive Analytics: Time-Series Forecast Simulator (2D)New📱A 2D line-chart simulator showing a trend and seasonality forecast with a widening… Gradient Descent Fit (2D): Linear Regression LiveNew📱A single-feature linear regression learns its slope and intercept live on a 2D scatter plot… Feature Engineering Transform Graph (2D)New📱2D Canvas companion: raw dataset columns flow through scale, power, interaction and binning… Recommendation System Bipartite Graph (2D)New📱A 2D bipartite graph where you tune similarity threshold and diversity injection to see… Kafka Partition Log & Consumer Lag Simulator (2D)New📱2D companion to the 3D Kafka visualizer: a top-down partitioned topic log where producers… Multi-Source Open-Data Fusion: ACLED, ADS-B, AIS & GDELT (2D)New📱2D geospatial fusion lab on a flat equirectangular map: simulated ACLED conflict clusters,… Data Lineage Impact Explorer (2D)New📱A 2D companion to the 3D data-lineage graph: a real directed-acyclic-graph of sources,… R-Tree Spatial Index Explorer (2D)New📱A 2D canvas R-tree spatial index built with a real Guttman-style insertion algorithm… Symbolic Regression: Evolving Physical Laws from Data (2D)New📱A 2D three-panel view of genetic-programming symbolic regression: a population of expression… Missing Data Mechanisms & Imputation Bias Lab (2D)New📱Interactive 2D scatter lab: hide values from a dataset under MCAR, MAR or MNAR missingness,… RDF Knowledge Graph & SPARQL Pattern Explorer (2D)New📱Interactive 2D RDF knowledge graph: watch a force-directed subject-predicate-object triple… Anscombe's Quartet in 2D: Four Datasets, One Set of StatisticsNew📱Interactive 2D scatter-plot gallery of Anscombe's Quartet: four datasets sharing nearly… Missing Data Imputation Lab: Mean, KNN & Regression FillNew📱Hide values in a correlated synthetic dataset under MCAR or biased MAR missingness, then… Zipf's Law 2D: Rank-Frequency Plot ExplorerNew📱Interactive 2D log-log plot of Zipf's law in language: sample a synthetic Zipfian corpus,… ACF/PACF Correlogram (2D): Identifying ARIMA Order | mysimulator.ukNew📱Interactive 2D correlogram: generate an ARMA(1,1) process, integrate it into a… Government Record Linkage 2D — Fellegi-Sunter Score ExplorerNew📱Match synthetic citizen records across two siloed government databases using the real… Regression Metrics Explorer 2D — MAE, RMSE, R² & MAPENew📱Interactive 2D regression-evaluation lab: a live predicted-vs-actual scatter with residual… Vector Space Search Engine 2D: TF-IDF Document RetrievalNew📱Type a search query and watch it get tokenized, weighted with TF-IDF, and ranked against a… Correlation Matrix Explorer 2D: Heatmap & Pair-Plot LabNew📱Interactive 2D correlation-matrix lab: generate a five-variable synthetic dataset with a… Difference-in-Differences 2D: Policy Effect EstimatorNew📱Interactive 2D difference-in-differences simulator: watch treated and control group outcomes… Reactor Sensor Correlation & Anomaly Stream (2D)New📱Two live reactor sensor streams — temperature under thermostat feedback control and coupled… PackNet 2D: Capacity Packing for Continual LearningNew📱Interactive 2D PackNet simulator: watch iterative magnitude pruning carve a fixed-size… Link Prediction Lab 2D: Node Embeddings & Edge ScoringNew📱Interactive 2D graph embedding simulator: watch a GCN-style neighbor-mean aggregation rule… Base-Rate Fairness Impossibility Lab (2D)New📱Drag-and-zoom 2D score strips show why a classifier that is equally accurate for two groups… Stationarity & Differencing 2D: The ADF Test ExplorerNew📱Build a non-stationary time series from trend, random-walk and seasonal components, then… Silhouette Score 2D: Finding the Right Number of ClustersNew📱Run K-means on a 2D scatter plot and watch a live silhouette halo grow around every point.… Feature Scaling Lab 2D: Gradient Descent Race TrackNew📱Top-down 2D race track comparing four lanes of the same dataset — raw, StandardScaler,… Permutation Feature Importance Lab — 2D Scatter ViewNew📱Fit a linear-regression model to synthetic data by ordinary least squares, then shuffle one… ACF/PACF Order Identification: Lag-Scatter CorrelogramNew📱Generate AR, MA, or random-walk time series and read their autocorrelation signature from a… Curse of Dimensionality: Distance Histogram & Volume CurveNew📱A 2D pairwise-distance histogram and an analytic ball/cube volume-ratio curve plotted… Colormap Perceptual Test PatternNew📱Interactive 2D sine-ramp colormap test pattern: watch how a perceptually non-uniform… Lambda Architecture: Reconciliation Strip ChartNew📱2D scrolling strip-chart of the Lambda/Kappa big-data architecture: watch a fast speed-layer… Reliability Diagram Plotter: Confidence vs. AccuracyNew📱Generate a synthetic classifier's predicted probabilities, dial in over- or… Outlier Detection Lab 2D: Falling Dot HistogramNew📱Sample points fall under gravity and stack into bins to build a live 2D histogram, while a… 2D Data Anomaly Simulator: Normalized vs Denormalized SchemasNew📱A flat 2D table view of the same normalization mechanics as the 3D version: run insert,… Simpson's Paradox in 2D: When Grouped Trends ReverseNew📱Watch a negative trend inside every subgroup of a dataset flip into a positive trend once… Columnar Compression: Dictionary & Run-Length Encoding (2D)New📱2D columnar-storage simulator: watch dictionary encoding and run-length encoding compress a… Partial Dependence & ICE Plot Explorer (2D)New📱Pan-and-zoom heatmap of a model's two-feature response surface paired with a live PDP/ICE… Domain-Adversarial Transfer Learning: The Gradient Reversal Layer (2D)New📱Interactive 2D visualizer of a Domain-Adversarial Neural Network (DANN): a domain classifier… Deep Feature Synthesis (2D): Automated Feature EngineeringNew📱A 2D node-graph and scatter/bar view of Deep Feature Synthesis: walk a relational Customers… Machine Unlearning: The Right to Be Forgotten (2D)New📱Interactive 2D SISA machine-unlearning simulator: file a GDPR erasure request on a training… Recommender Popularity Bias (2D): The Rich-Get-Richer Feedback LoopNew📱Watch collaborative-filtering exposure feedback concentrate recommendations onto a shrinking… Columnar Storage & Predicate Pushdown (2D)New📱2D pannable grid of a real row/column table: flip row-major vs columnar layout, toggle… Factorization Machines 2D: Wide + Deep Feature InteractionsNew📱Train a real Factorization Machine live in 2D: pick a user/item/device/time example, label… GradNorm: Loss Weighting for Multi-Task Learning (2D)New📱2D simulator: watch three task heads train through one shared trunk on a drag-to-orbit,… AdaBoost 2D: Sample Reweighting in ActionNew📱Interactive 2D AdaBoost simulator: watch sample weights grow after every misclassification,… Instrumental Variables (2D): Untangling a Confounded CauseNew📱A draggable 2D scatter of a confounded cohort tilts to reveal how a hidden variable biases… Cross-Validation Lambda Tuner: Ridge RegressionNew📱An interactive 3D k-fold cross-validation simulator: watch ridge regression's regularization… Squarified Treemap Layout SimulatorNew📱Run the real squarified-treemap algorithm (Bruls, Huizing & van Wijk) on an editable… Gradient Surgery: Resolving Conflicting Task Gradients (PCGrad)New📱Watch a shared parameter vector descend two or three quadratic task-loss bowls on a live 3D… Stationarity & the Unit Root: Random Walk vs AR(1) DifferencingNew📱Generate an AR(1) time series live, push its coefficient to a unit root to see a… Columnar vs Row Storage: Analytical Scan CostNew📱Run the same analytical query against a row-oriented and a column-oriented table layout in… UMAP Layout Optimizer: Attractive & Repulsive ForcesNew📱Watch UMAP's force-directed embedding optimizer run live in 2D: k-nearest-neighbor graph… Mean-Shift Clustering: 2D Contour Map & Density Cross-SectionNew📱Real marching-squares contour extraction of a Gaussian kernel density estimate, fading… Nesterov Momentum: Contour Map & Convergence RaceNew📱A 2D contour-map view of plain gradient descent, classical momentum, and Nesterov… BM25 Ranking 2D: Search Score Bar ChartNew📱Interactive 2D BM25 ranking simulator: tune the term-frequency saturation constant k1 and… Grubbs' Test 2D: Dot-Plot Outlier RejectionNew📱Interactive 2D dot-plot simulator of Grubbs' test for outliers: values are binned and… Data Anomaly Simulator: Normalized vs Denormalized SchemasNew📱Run insert, update and delete operations against a denormalized table and its normalized 3NF… Simpson's Paradox: When Grouped Trends ReverseNew📱Watch a negative trend inside every subgroup of a dataset flip into a positive trend once… Outlier Detection Lab: Tukey's IQR FencesNew📱Generate a dataset and watch it rendered as a live 3D box plot — drag the IQR fence… Colormap Perception LabNew📱Interactive 3D terrain colored by real colormaps (Viridis, Jet, grayscale): measure how… Squarified Treemap Layout SimulatorNew📱Run the real squarified-treemap algorithm (Bruls, Huizing & van Wijk) on live weighted… Columnar Compression: Dictionary & Run-Length EncodingNew📱Interactive 3D columnar-storage simulator: watch dictionary encoding and run-length encoding… Mean-Shift Clustering: Climbing the Density LandscapeNew📱Watch data points climb a live 3D kernel-density surface toward its local peaks in this… Lambda Architecture: Batch & Speed Layer ReconciliationNew📱An interactive 3D simulator of the Lambda/Kappa big-data architecture: watch events flow… ACF/PACF Order Identification: Reading a Time Series' Autocorrelation SignatureNew📱Generate AR, MA, or random-walk time series and watch their autocorrelation (ACF) and… Partial Dependence & ICE Plot ExplorerNew📱Explore how a partial dependence plot averages a model's response surface across sampled… Domain-Adversarial Transfer Learning: The Gradient Reversal LayerNew📱Interactive 3D visualizer of a Domain-Adversarial Neural Network (DANN): a domain classifier… Deep Feature Synthesis: Automated Feature EngineeringNew📱Watch automated feature engineering walk a relational Customers → Transactions → Categories… Columnar vs Row Storage: Analytical Scan CostNew📱Run the same analytical query against a row-oriented and a column-oriented table layout in… Machine Unlearning: The Right to Be ForgottenNew📱Interactive SISA machine-unlearning simulator: file a GDPR erasure request on a training… Nesterov Momentum: Look-Ahead Gradient on an Ill-Conditioned ValleyNew📱Race plain gradient descent, classical momentum, and Nesterov accelerated gradient down an… Recommender Popularity Bias: The Rich-Get-Richer Feedback LoopNew📱Watch collaborative-filtering exposure feedback concentrate recommendations onto a shrinking… Curse of Dimensionality: Distance ConcentrationNew📱Watch a random point cloud's pairwise distances concentrate and its inscribed hypersphere's… Probability Calibration — Reliability Diagrams & Brier ScoreNew📱Generate a synthetic classifier's predicted probabilities, dial in over- or… Columnar Storage & Predicate PushdownNew📱Interactive 3D simulator comparing row-major vs columnar table layout: toggle dictionary… Anscombe's Quartet: Why You Must Plot Your DataNew📱An interactive 3D gallery of Anscombe's Quartet: four datasets sharing an almost identical… Difference-in-Differences: Policy Effect EstimatorNew📱Watch treated and control group outcomes evolve across ten time periods around a policy… GradNorm: Loss Weighting for Multi-Task LearningNew📱Watch three task heads train through one shared trunk while Equal, Uncertainty, or GradNorm… PackNet: Capacity Packing for Continual LearningNew📱Watch iterative magnitude pruning carve a fixed-size neural network into frozen,… Base-Rate Fairness Impossibility LabNew📱See the fairness impossibility theorem in action: two demographic groups scored by the same… Missing Data Mechanisms & Imputation Bias LabNew📱Hide values from a synthetic dataset under MCAR, MAR or MNAR missingness, then repair it… Stationarity & Differencing: The ADF Test ExplorerNew📱Build a non-stationary time series from trend, random-walk and seasonal components, then… Link Prediction Lab: Node Embeddings & Edge ScoringNew📱Watch a GCN-style neighbor-mean aggregation pull node embeddings together on a live 3D… Vector Space Search Engine: TF-IDF Document RetrievalNew📱Type a search query and watch it get tokenized, weighted with TF-IDF, and ranked against a… BM25 Ranking: How Search Engines Score DocumentsNew📱Interactive 3D BM25 ranking simulator: tune the term-frequency saturation constant k1 and… RDF Knowledge Graph & SPARQL Pattern ExplorerNew📱Interactive 3D RDF knowledge graph: watch a force-directed subject-predicate-object triple… Instrumental Variables: Untangling a Confounded CauseNew📱A live 3D point cloud of a confounded cohort shows how a hidden variable biases the naive… Gradient Surgery: Resolving Conflicting Task Gradients (PCGrad)New📱Watch a shared parameter vector descend two or three quadratic task-loss bowls on a live 3D… Symbolic Regression: Evolving Physical Laws from DataNew📱Genetic programming evolves a population of expression trees against noisy free-fall,… Factorization Machines: Wide + Deep Feature InteractionsNew📱Train a real Factorization Machine live in 3D: pick a user/item/device/time example, label… Grubbs' Test: Iterative Outlier RejectionNew📱Interactive 3D simulator of Grubbs' test for outliers: compute the G statistic against a… Silhouette Score: Finding the Right Number of ClustersNew📱Interactive 3D silhouette-score analyzer: run K-means clustering live, watch a colored bar… UMAP Layout Optimizer: Attractive & Repulsive ForcesNew📱Watch UMAP's force-directed embedding optimizer run live in 3D: k-nearest-neighbor graph… AdaBoost: Sample Reweighting in ActionNew📱Interactive 3D AdaBoost simulator: watch sample weights grow after every misclassification,… Regression Metrics Explorer — MAE, RMSE, R² & MAPENew📱Watch MAE, RMSE, R² and MAPE update live on a 3D predicted-vs-actual bar chart as you add… Feature Scaling Lab: Why Gradient Descent Needs Normalized FeaturesNew📱Watch the same dataset train four ways at once — raw, StandardScaler, MinMaxScaler and… Missing Data Imputation Lab: Mean, KNN & Regression FillNew📱Hide values in a correlated synthetic dataset under MCAR or biased MAR missingness, then… Permutation Feature Importance TestNew📱Fit a real linear-regression model to a synthetic dataset, then shuffle one feature column… Stationarity & the Unit Root: Random Walk vs AR(1) DifferencingNew📱Generate an AR(1) time series live, push its coefficient to a unit root to see a… Correlation Heatmap & Pair-Plot ExplorerNew📱Generate a five-variable synthetic dataset with a controllable target correlation, watch the… Government Record Linkage — Probabilistic Entity ResolutionNew📱Match synthetic citizen records across two siloed government databases using the real… DAU/MAU Stickiness SimulatorNew📱Step a population of 900 mobile-app users day by day, each with a fixed activation… Zipf's Law: Word Frequency vs RankNew📱Generate a synthetic Zipfian word corpus, watch its log-log rank/frequency plot fit a… Reactor Sensor Correlation & Anomaly StreamNew📱Two live reactor sensor streams — temperature under thermostat feedback control and coupled… Cross-Validation Lambda Tuner: Ridge RegressionNew📱An interactive 3D k-fold cross-validation simulator: watch ridge regression's regularization… ACF/PACF Correlogram: Identifying ARIMA OrderNew📱Generate a stationary ARMA(1,1) process, integrate it d times into a non-stationary series,… Predictive Analytics: Time-Series Forecast SimulatorNew📱Interactive time-series forecasting simulator: watch a trend + seasonality model project… Text Vectorization Lab: BoW vs TF-IDF Live DemoNew📱Explore text vectorization using BoW and TF-IDF on synthetic tweets. See how different… Sampling Bias SimulatorNew📱Interactive 3D survey town of 400 households across four neighborhoods with different real… Civic Data PlaygroundNew📱Interactive 3D city grid built from open municipal data: tune population, traffic-light… Data Analysis Fundamentals SimulatorNew📱Interactive 3D scatterplot lab: generate a noisy dataset, inject outliers, and watch a live… Data Visualization ExplorerNew📱Interactive 3D bar chart and scatter plot built from the same generated dataset: tune sample… Dimension CollapseNew📱An N-dimensional hypercube spins through its extra-dimensional rotation planes while a… Experimental Design FundamentalsNew📱Interactive control-vs-treatment trial simulator: tune sample size, true effect size, noise… Stream Window Aggregator: Tumbling vs SlidingNew📱Watch a live event stream flow past tumbling and sliding aggregation windows, with Poisson… Topic Modeling: Documents as Mixtures of TopicsNew📱Interactive LDA-style topic model: sample a document's topic mixture from a Dirichlet… Categorical Encoding LabNew📱Switch a categorical feature between one-hot, label, frequency and target encoding and watch… One-Class SVM Anomaly BoundaryNew📱Watch a one-class SVM (RBF-kernel density) boundary enclose a normal data cloud in 3D — tune… Spot vs On-Demand Cloud TrainingNew📱Interactive 3D cloud ML training cluster: mix spot and on-demand instances, tune… Truncated Axis IllusionNew📱Drag a Y-axis truncation slider on a two-bar chart and watch the exact same underlying… Classifier Complexity: Underfitting vs OverfittingNew📱Drag a classifier-complexity slider across a curved two-class dataset with noisy mislabeled… Cold-Start: Collaborative vs Content-Based FallbackNew📱Two brand-new users join a recommender: pure collaborative filtering has zero rating history… Bag-of-Words vs TF-IDFNew📱A 3D term-weight bar chart that compares Bag-of-Words counts against TF-IDF weights across… Cookie Policy — MySimulator.ukNew📱Cookie Policy for MySimulator.uk — what cookies and local storage we use, and how to control… The Hadoop Ecosystem: HDFS, MapReduce & YARNNew📱A 3D data-centre model of a Hadoop cluster: watch HDFS split and replicate a file into… Metadata Standards and Open Data Practices for Apiary ResearchNew📱A 3D data pipeline where raw hive sensor readings pass through metadata validation gates —… Fusing ACLED, ADS-B, AIS and GDELTNew📱A 3D globe where conflict-event reports, aircraft tracks, ship tracks and news pulses from… Stats — 3D Browser SimulationsNew📱Live statistics for 3D Browser Simulations — simulation count, categories, articles, your… Bag-of-Words vs TF-IDF: Tweet Sentiment ClassifierNew📱Watch a live nearest-centroid classifier sort tweets into positive/negative/neutral in a 3D… Live Analytics DashboardNew📱Real-time 3D analytics dashboard: hourly traffic bars, a device-coloured visitor particle… Apiary Analytics & KPI DashboardsNew📱A live apiary KPI dashboard: simulated inspection rounds drift colony strength, mite load… Research Collaboration NetworkNew📱Researchers form a co-authorship network — watch how connectivity and publication rate… Data Pipeline Automation ConsoleNew📱Raw data flows through automated ingestion, cleaning and loading stage nodes — watch… Audio Spectrogram Processing GridNew📱A grid of frequency-bin nodes pulses with live amplitude as a synthetic audio signal streams… Recommendation System Bipartite GraphNew📱Users and items form a bipartite graph — watch recommendation edges strengthen as similarity… Anomaly Detection Point CloudNew📱Normal data points cluster tightly while injected anomalies drift outward — tune detection… Model Evaluation ROC SpaceNew📱Predictions land as TP/FP/TN/FN nodes around a moving decision threshold — slide it and… Feature Engineering Transform GraphNew📱Raw feature nodes flow through transform nodes (scaling, encoding, interaction terms) into… Data Engineering: Building Modern Data InfrastructureNew📱A practical guide to data engineering: data pipelines, warehousing, lakehouse architecture,… Data Science: A Physics PerspectiveNew📱Explore the core concepts of data science – analytics, modeling, and machine learning –… Advanced Cybersecurity Simulation: Threat ResponseNew📱This simulation challenges users to respond effectively to simulated cybersecurity threats,… Advanced Data Ethics Simulation: Responsible Data HandlingNew📱Navigate intricate ethical challenges surrounding data collection, storage, and usage within… Data Ethics Scenario NavigationNew📱This simulation presents users with scenarios requiring them to navigate the ethical… Automation Data Automation SimulationNew📱This simulation demonstrates how data is used to drive automation processes. It showcases… Big Data SimulationNew📱This simulation demonstrates the visualization and analysis of large datasets. It explores… Entrepreneurship Market Validation SimulationNew📱Players conduct market research and testing to validate their product or service idea before… Ά× Structured Data Audit | Science PortalNew📱This simulation guides users through the process of auditing and structuring scientific data… Kafka Event Stream VisualizerNew📱Interactive 3D pipeline of topics, partitions and consumer groups where publishing events… BI Semantic Layer ModelerNew📱Interactive 3D data-warehouse-to-dashboard pipeline where redefining a metric in the… Data Lake to Lakehouse ExplorerNew📱Interactive 3D storage architecture where adding a transactional table layer over raw object… Data Lineage Trace ExplorerNew📱Interactive 3D graph of tables, transforms and dashboards where clicking a metric traces its… Data Mesh Domain ExplorerNew📱Interactive 3D network of domain-owned data products where reassigning ownership shows how a… ETL vs ELT Pipeline ComparatorNew📱Interactive 3D side-by-side pipeline where routing raw data through transform-then-load… Feature Store Skew DetectorNew📱Interactive 3D pipeline splitting into training and serving paths where injecting a… MongoDB Document Model ExplorerNew📱Interactive 3D document-collection scene where toggling schema flexibility and sharding… PostGIS Spatial Index ExplorerNew📱Interactive 3D map-and-index scene where running spatial queries shows how PostGIS's R-tree… Hive Sensor Monitoring DashboardNew📱Interactive 3D hive rigged with weight, temperature and humidity sensors where adjusting… Mutual Information ExplorerNew📱Interactive 3D joint-distribution scene where reshaping two variables' dependency shows how… Dimensionality Reduction: PCA, t-SNE & UMAPNew📱Watch real PCA (covariance eigendecomposition), a live t-SNE-style optimisation, and a… Regression Visualizer: Linear, Polynomial & RegularizationNew📱Fit noisy data live with real least-squares regression — slide the polynomial degree to see… Time Series Decomposition: Trend, Seasonality & ResidualsNew📱Decompose a synthetic time series into trend, seasonality and residuals in real time —… Monte Carlo Estimation: From π to Financial RiskNew📱Watch genuine Monte Carlo simulation run live in 3D: estimate π, estimate a definite… Confusion Matrix & ROC-AUC ExplorerNew📱Drag the decision threshold across two overlapping score distributions and watch the… DAU/MAU Stickiness Simulator (2D)📱Interactive 2D grid simulator of mobile-app user engagement: 900 users with heterogeneous…