Github user yanboliang commented on the issue: https://github.com/apache/spark/pull/17862 @hhbyyh Make sense, does it mean both LBFGS and OWLQN produce the same solution if fitting without intercept? If so, I'm prefer to change the solver to LBFGS rather than adding a new option. Since we treat LBFGS and OWLQN as the same solver in other algorithms like ```LinearRegression``` and ```LogisticRegression```. BTW, we can discuss whether we should follow the same way(compared with sklearn/R) to handle intercept in follow-up work. Thanks.
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