说明： 说明：基于条件随机场模型的实体关系识别，内含条件随机场的理论介绍以及该理论应用于实体关系识别的实验及实验分析
(Note: Based on Conditional Random Fields model entity-relationship recognition, implied condition of the theoretical description with the airport, as well as the theory is applied to entity-relationship recognition experiments and experimental analysis)
