计算机科学 ›› 2020, Vol. 47 ›› Issue (11A): 562-569.doi: 10.11896/jsjkx.200200086
万文军1, 窦全胜1,2, 崔盼盼1, 张斌1, 唐焕玲1,2
WAN Wen-jun1, DOU Quan-sheng1,2, CUI Pan-pan1, ZHANG Bin1, TANG Huan-ling1,2
摘要： 针对嵌套查询中SQL语法结构难以构建的问题,提出结合关系分类与修正的GSC-RCC方法,以3类实体间关系表示SQL语法。首先设计关系分类深度模型,并引入列名常用词提升模型性能,用以确定语句中每个实体对所属不同关系的概率,以此生成无修正无向图;然后设计基于SQL语法的关系修正算法,对无向图进行修正,以此构建SQL语法结构。在房产数据查询任务中,GSC-RCC对多条件含嵌套复杂查询的语法结构生成准确率为92.25%,且可减轻模型对语句样本数的依赖。
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