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hIPPYlib: An Extensible Software Framework for Large-Scale Inverse Problems Governed by PDEs

Villa, Umberto; Petra, Noemi; Ghattas, Omar

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	&lt;li&gt;Switch to GitHub Actions for CI&lt;/li&gt;
	&lt;li&gt;Introduce a new function &lt;code&gt;BiLaplacianComputeCoefficients&lt;/code&gt; to estimate the PDE coefficient based on a prescribed marginal variance and correlation length&lt;/li&gt;
	&lt;li&gt;Allow &lt;code&gt;BiLaplacianPrior&lt;/code&gt; to take spatially varying coefficients as input&lt;/li&gt;
	&lt;li&gt;Add support for non-Gaussian noise models&lt;/li&gt;
	&lt;li&gt;Introduce utilities to interpolate cartesian data (expressed as &lt;code&gt;numpy&lt;/code&gt; arrays) on a &lt;code&gt;dolfin&lt;/code&gt; mesh.&lt;/li&gt;
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