The Element Movers Distance (ElMD) has been applied to assess the compositional similarity of both hypothetical and previously reported compounds . The comparatively high computational complexity of the metric does not impede usage for small numbers of comparisons, but it does make it less suitable for use in high throughput similarity searches. Nevertheless, due to its clear utility, a brute force search interface to return the most similar composition reported in materials databases is included as a part of the Materials Atlas suite . Here the intensive nature of the search is given as the justification for limiting the search to restricted datasets (materialsatlas.org/tool similarcomposition), but even with this constraint, brute force searches take up to a minute to execute on modern hardware, which is not fast enough for general usage.