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线性链式的条件随机场如下所示:
[p\left( {y|x} \right) = \frac{1}{{Z\left( x \right)}}\exp \left{ {\sum\limits_{k = 1}^K {{\lambda k}{f_k}\left( {{y_t},{y},{x_t}} \right)} } \right}]
样本级的归一化函数:
[Z\left( x \right) = \sum\limits_y {\exp \left{ {\sum\limits_{k = 1}^K {{\lambda k}{f_k}\left( {{y_t},{y},{x_t}} \right)} } \right}}]