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Fix the issue where primal solver cannot be used in libmultilabel. #12

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Fix the issue where primal solver cannot be used in libmultilabel. #12

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5 changes: 3 additions & 2 deletions libmultilabel/linear/linear.py
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Original file line number Diff line number Diff line change
Expand Up @@ -5,7 +5,7 @@

import numpy as np
import scipy.sparse as sparse
from liblinear.liblinearutil import train, problem, parameter
from liblinear.liblinearutil import train, problem, parameter, L2R_L2LOSS_SVC_DUAL, L2R_L1LOSS_SVC_DUAL
from tqdm import tqdm

__all__ = [
Expand Down Expand Up @@ -335,7 +335,8 @@ def _do_train(y: np.ndarray, x: sparse.csr_matrix, options: str) -> np.matrix:

prob = problem(y, x)
param = parameter(options)
param.w_recalc = True # only works for solving L1/L2-SVM dual
if param.solver_type in [L2R_L1LOSS_SVC_DUAL, L2R_L2LOSS_SVC_DUAL]:
param.w_recalc = True # only works for solving L1/L2-SVM dual
with silent_stderr():
model = train(prob, param)

Expand Down