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1. 发明申请

WO2011129522A3 RANKING DEVICE AND METHOD FOR MULTI-ATTRIBUTE DATA 审中-公开
标题翻译：排名设备和多属性数据的方法
公开(公告)号：WO2011129522A3
公开(公告)日：2011-12-08
申请号：PCT/KR2011001075
申请日：2011-02-18
申请人： NAT UNIV CHUNGBUK IND ACAD , YOO JAE SOO , JANG SU MIN , PARK CHOON SEO
发明人： YOO JAE SOO , JANG SU MIN , PARK CHOON SEO
IPC分类号： G06F17/00 , G06F17/30
CPC分类号： G06F17/30333 , G06F17/3053
摘要： A ranking device for multi-attribute data provides: a dominance bit list generation unit for generating a dominance bit list in each datum, which indicates in bits whether there is a dominance between a plurality of data having multiple attributes (i.e., dominance is established when all attributes of first data are less than or equal to all attributes of second data, and at least one attribute of the first datum is less than one attribute of the second data); an N-level skyline extraction unit for extracting a multilevel skyline by analyzing a dominance bit list of each datum in order to extract a skyline (i.e., a skyline is a data set that is not dominated by other data) and analyzing data that excludes the extracted skyline in a plurality of data in order to extract an N-level skyline; and a Top-K preference object extraction unit for determining a priority order within the skyline data of the multilevel skyline in accordance with user preferences, then extracting as many skyline data, starting from the top of the priority order, as the number of data results that a user desire, and presenting same.
摘要翻译：用于多属性数据的排名装置提供：优势比特列表生成单元，用于在每个数据中生成优势比特列表，其以比特为单位指示在具有多个属性的多个数据之间是否存在优势（即，第一数据的所有属性小于或等于第二数据的所有属性，并且第一数据的至少一个属性小于第二数据的一个属性）; N级地平线提取单元，用于通过分析每个数据的优势比特列表来提取多层天际线，以提取天际线（即，天际线是不是由其他数据支配的数据集），并且分析不排除提取多个数据中的天际线以提取N级天际线; 以及Top-K偏好对象提取单元，用于根据用户偏好来确定多层天际线的天际线数据内的优先顺序，然后从优先顺序的顶部开始提取多达天际线数据作为数据结果的数量用户期望并呈现相同。

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