Finding a path is harder than finding a tree
نویسنده
چکیده
I consider the problem of learning an optimal path graphical model from data and show the problem to be NP-hard for the maximum likelihood and minimum description length approaches and a Bayesian approach. This hardness result holds despite the fact that the problem is a restriction of the polynomially solvable problem of nding the optimal tree graphical model.
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ورودعنوان ژورنال:
- J. Artif. Intell. Res.
دوره 15 شماره
صفحات -
تاریخ انتشار 2001