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    • 7. 发明申请
    • Adaptive processing of top-k queries in nested-structure arbitrary markup language such as XML
    • 在嵌套结构任意标记语言(如XML)中自适应处理top-k查询
    • US20060112090A1
    • 2006-05-25
    • US11073966
    • 2005-03-07
    • Sihem Amer-YahiaNikolaos KoudasAmelie Marian-GuerrierDivesh Srivastava
    • Sihem Amer-YahiaNikolaos KoudasAmelie Marian-GuerrierDivesh Srivastava
    • G06F17/30
    • G06F17/30466G06F17/3053G06F17/30938
    • A method of adaptively evaluating a top-k query involves (1204) forming a servers having respective server queues storing candidate answers, processing (1322) the candidate answers, and (1232) providing a top-k set as a query evaluation. Processing includes (1402) adaptively choosing a winning server to whose queue a current candidate answer should be sent; (1404) sending the current candidate answer to the winning server's queue; (1334) adaptively choosing a next candidate answer to process from the winning server's queue; (1336) computing a join between the current candidate answer and next candidate answers at the winning server, so as to produce a new current candidate answer; and (1338) updating the top-k set with the new current candidate answer only if a score of the new current candidate answer exceeds a score of a top-k answer in a top-k set. A method of calculating scores for candidate answers is also provided.
    • 自适应地评估top-k查询的方法涉及(1204)形成具有存储候选答案的相应服务器队列的服务器,处理(1322)候选答案,以及(1232)提供top-k集合作为查询评估。 处理包括(1402)自适应地选择应该发送当前候选答案的获胜服​​务器到其队列; (1404)将当前候选答案发送给获胜服务器的队列; (1334)自适应地从获胜服务器的队列中选择下一候选答案进行处理; (1336)计算当前候选答案和获胜服务器上的下一候选答案之间的连接,以产生新的当前候选答案; 以及(1338)如果新的当前候选答案的分数超过顶部k集合中的顶部k个答案的分数,则更新具有新的当前候选答案的顶部k集合。 还提供了一种计算候选答案的分数的方法。