3 ms·
The n parameter there was the number of datapoints, not the size of the inputs (that would've been way worse). For brain imaging, is the 100k parameter also ref
by bhl 7y ago
The n parameter there was the number of datapoints, not the size of the inputs (that would've been way worse). For brain imaging, is the 100k parameter also referencing datapoints, or dimensionality of the input?
Chapter 8 of the Rasmussen reference does talk about approximation methods for large datasets, but I couldn't find any reference implementations to go off of.
- conjectures 7y ago"number of datapoints, not the size of the inputs" For brain imaging, 100k was 'the dimensionality of the input' (but also the number of datapoints). This could easily be O(10^6) though with higher res imaging. I'd check out, for discussion: https://www.prowler.io/blog/sparse-gps-approximate-the-posterior-not-the-model https://www.prowler.io/blog/sparse-gps-approximate-the-poste... For code: https://github.com/GPflow/GPflow https://github.com/GPflow/GPflow Based on the people involved knowing what they are talking about, rather than on experience using that particular work.