scaling of y changed after ToolBox.get_query_strategy(strategy_name='QueryInstanceBMDR', kernel='rbf')

[lukekolbe]

When loading both strategies that use cvxpy, the values of ToolBox._y change from (0, 1) to (-1, 1). Since the ToolBox object does not create a copy but instead only stores a reference to y, the actual values in y are changed as well. Other strategies in query_labels.py do not display such behavior.

This to me seems problematic, as the original data should not be changed. It is also a problem because if you run several models from the same ToolBox object, that object in general should not change between models.

See screenshot for quick demonstration, the data is split in X and y, both np.arrays. Y is either 0 or 1 (see printouts).

I use colab, so the alipy version is always freshly installed.