本发明公开了一种基于递归索引树的克林闭包正则路径查询优化方法,步骤1,对由(s,p,o)三元组构成的RDF数据图进行键值对转化处理;步骤2,将字符串转化为编码数据;步骤3,进行整个数据图的键值对存储;步骤4,对克林闭包进行细分,具体分为单谓词克林闭包和表达式克林闭包;步骤5,遍历整个键值对存储,通过将克林闭包修饰的正...
Advanced optical applications (such as fiber optics) demand the engineering of innovative materials which provide the requisite optical performance in a form with specific functionality necessary for the desired application. We will report on recent efforts to engineer new non-oxide glasses with tailored...