Aiming at the task of Chinese Prepositional Phrase Identification, we proposed that word and part-of-speech are the main factors which construct a feature space of ME model. And an algorithm is presented to automatically acquire a feature set.

• 因此在本文中针对汉语介词短语的划分和识别，提出了词、词性标注是构成介词短语识别的主要因素，并根据这几种因素结合介词短语的语用特征来确定最大熵模型的特征空间，从中自动获取介词短语识别的有效特征集合。