rohanmohapatra / hdbscan-cpp Goto Github PK

LoadCsv Method will throw bad_alloc exception if the file given as parameter is not found.

I was wondering if this library includes the accelerated version of the HDBSCAN algo from 2017?
The paper: https://arxiv.org/abs/1705.07321
The implementation in Python: https://github.com/scikit-learn-contrib/hdbscan

Hello everybody,

Can someone, please, explain to me a small quicksort implementation detail in the UndirectedGraph class.

In the method selectPivotIndex there is an early return block

	if (startIndex - endIndex <= 1)
		return startIndex;

It seems that this condition is always true. That's totally fine for the quicksort implementation as the pivot could be any element in between startIndex and endIndex, though the heuristic after this block would be obsolete. Is it correct?

My dataset is 50000 x 22 dimensions. When running HDBSCAN on it, the following error occurs:

terminate called after throwing an instance of 'std::length_error'
  what():  cannot create std::vector larger than max_size()
Aborted (core dumped)

vector.resize() throws bad_alloc allow when it is used to resize greater than 16,000 points

hello,

Could you please explain the difference between parameters minClusterSize and minPoints?

thanks,
Omer.