【摘要】 在概念层次网络理论中,领域是语境单元的一个要素,而领域判定是语境单元萃取的重要课题之一。该文提出一种利用领域概念以及概念关联式进行领域判定的方法,通过在概念基元层面进行频数统计、概念合并及概念汇总实现领域的判定。对政治、经济、军事三个领域的语料进行测试,结果表明,使用概念关联式能够改进领域判定的效果,其F1值分别达到90.61%、90.83%、90.99%,比不使用概念关联式的情况分别提高了7.7%、12.76%、5.01%。最后,与基于关键词方法的对比结果也显示使用概念基元的方法效果较好。更多还原

【Abstract】 For Hierarchical Network of Concepts theory,domain is one of the main factors in Sentences Group Unit. Domain determination is an important issue in Sentences Group Unit Extraction.To determine the domain,we proposed a method using domain concepts and concept association expressions,which counted frequencies,merged concepts and summarized concepts in concept primitive space.For politics,economics and military domain,the experimental results show high performance in present method,the F1 scores reach 90.61%,90.83% and 90.99% respectively,which are 7.7%,12.76%and 5.01% higher than the results with no concept association expressions. Finally,compared with the keywords-based method,the concept-primitives-based method shows high performance.更多还原