RT - Journal Article T1 - Unsupervised Persian Verb Valency Induction JF - jsdp YR - 2013 JO - jsdp VO - 9 IS - 2 UR - http://jsdp.rcisp.ac.ir/article-1-102-en.html SP - 3 EP - 12 K1 - Dependency grammar K1 - verb valency K1 - Persian language K1 - unsupervised induction K1 - EM algorithm AB - Valency is the key concept in dependency grammar. Among all word categories, verbs are the most important categories with a key role in syntax and semantics. Verb is the central role in a sentence and acts as the main semantic component in the dependency grammar. In this paper, after studying several methods for unsupervised discovery of Persian verb valency, the ambiguities are studied. Among all methods, EM gained the best results i.e. two time more F-score that binomial hypothesis testing LA eng UL http://jsdp.rcisp.ac.ir/article-1-102-en.html M3 ER -