.. _sphx_glr_auto_examples_transfer:

Transfer learning
-----------------

Using Riemannian geometry for transfer learning and domain adaptation.



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    <div class="sphx-glr-thumbcontainer" tooltip="Use the SpectralEmbedding module to plot in 2D the transformations on the matrices from source and target domains when applying the Riemannian Procrustes Analysis [1]_ to match their statistics.">

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  .. image:: /auto_examples/transfer/images/thumb/sphx_glr_plot_rpa_steps_thumb.png
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  :doc:`/auto_examples/transfer/plot_rpa_steps`

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      <div class="sphx-glr-thumbnail-title">Data transformations in the Riemannian Procrustes Analysis</div>
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    <div class="sphx-glr-thumbcontainer" tooltip="In this example, we use transfer learning (TL) to classify epochs from a subject using a classifier trained on data from another subject. We consider TL with a pooling strategy: for each target subject of choice, we use the data from several source subjects to train a single classifier using all of their data points pooled together. We compare the results of simply mixing all covariances from all source subjects without any care (dummy) versus transforming the covariances of all subjects so that they are centered around the identity matrix (recenter) [1]_. We use data from the Physionet BCI database and compare the classification performance of MDM with each strategy.">

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  .. image:: /auto_examples/transfer/images/thumb/sphx_glr_plot_bci_example_thumb.png
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  :doc:`/auto_examples/transfer/plot_bci_example`

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      <div class="sphx-glr-thumbnail-title">Motor imagery classification by transfer learning</div>
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    <div class="sphx-glr-thumbcontainer" tooltip="We compare the classification performance of MDM on different strategies for transfer learning.">

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  .. image:: /auto_examples/transfer/images/thumb/sphx_glr_plot_comparison_pipelines_thumb.png
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  :doc:`/auto_examples/transfer/plot_comparison_pipelines`

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      <div class="sphx-glr-thumbnail-title">Comparison of pipelines for transfer learning</div>
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.. toctree::
   :hidden:

   /auto_examples/transfer/plot_rpa_steps
   /auto_examples/transfer/plot_bci_example
   /auto_examples/transfer/plot_comparison_pipelines