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157	157	[[image:timeseries-plotly.png||alt="view3.png" height="593" width="1100"]]
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159		-=== 3. Visualize posterior pairplot resulted from an inference workflow ===
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161		-This functionality is available for the SamplePosterior component. Right click on the component and select the Open Viewer functionality.
	160	+=== 3. Visualize posterior samples with a pairplot (VBI inferenece) ===
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	162	+This functionality is available for the **SamplePosterior** component. Right click on the component and select the **Open Viewer** functionality.
	163	+
163	163	This opens a new JupyterLab tab with an editable notebook. After following the instructions in the notebook, you will generate a pairplot of the posterior samples, showing the distribution of each parameter (uncertainty) and the relationships between parameters.
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165	165	*Make sure the workflow has been executed so the viewer has data to load.
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167	167	[[image:plot-posteriors.png||height="593" width="1100"]]
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169		-=== 4. Visualize time series resulted from VBI simulations ===
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171		-This functionality is available for the SimulationRunner component. Right click on the component and select the Open Viewer functionality.
	171	+=== 4. Visualize time series from VBI simulations ===
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	173	+This functionality is available for the **SimulationRunner** component. Right click on the component and select the **Open Viewer** functionality.
	174	+
173	173	This opens a new JupyterLab tab with an editable notebook. After following the instructions in the notebook, you will see a simple time-series plot of the simulated model signal over time.
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175	175	*Make sure the workflow has been executed so the viewer has data to load.
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192	192	=== 2. Full VBI Inference workflow ===
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194		-Contains all VBI components required to run an inference workflow (e.g., inference configuration, model, simulator, train posterior, sample posterior).
	196	+Contains all VBI components required to run an inference workflow, from prior sampling and simulation to posterior training and posterior sampling.
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	198	+The workflow starts with **ConfigInference**, which builds the configuration inputs needed by the workflow. It samples parameter values from the prior distribution to generate theta and prepares the feature-extraction configuration (cfg) used later in the pipeline.
	199	+
	200	+Next, **SimulationRunner** executes the selected **VBI model** for a batch of parameter samples (theta) using the chosen backend (//cpp//, //cupy// or //numba//). It selects the requested output signal from the model result and extracts the summary features defined in cfg, producing the feature matrix used for training.
	201	+
	202	+The resulting features and parameter samples are then passed to **TrainPosterior**, which standardizes the feature matrix with //StandardScaler //and trains a posterior distribution using an SBI method (for example //SNPE//, //SNLE//, or //SNRE//). In the last step, **SamplePosterior** draws parameter samples from the trained posterior distribution, conditioned on the selected observed feature vector.
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196	196	[[image:vbi_workflow.png||height="590" width="1100"]]
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198	198	=== 3. Configuring model parameters using the PhasePlaneWidget: ===
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216	216	A workflow simulation which is run remotely, by submitting a job to an HPC site and getting back the results (TimeSeries object).
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	226	+=== 6. Parallel simulations workflow ===
	227	+
	228	+This example demonstrates **Parameter Space Exploration** (PSE) by running multiple TVB simulations in parallel for different parameter combinations.
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	230	+The workflow uses two nested ForEach components to iterate over coupling and conduction speed sets of values. For each (coupling, conduction_speed) pair, a simulation run is executed with the help of the RunParallelProcess component, which runs the workflow body in separate worker processes (using multiprocessing + dill).
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	232	+[[image:parallel-simulations.png||height="590" width="1100"]]
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218	218	{{html}}<iframe width="1280" height="720" src="https://www.youtube.com/embed/M6rZClFgRrM" title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share" allowfullscreen></iframe>{{/html}}
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parallel-simulations.png

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	1	+XWiki.teodoramisan

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