multi-dimensional aggregation
نویسندگان
چکیده
منابع مشابه
y-Constrained multi-dimensional aggregation
The SQL:2003 standard introduced window functions to enhance the analytical processing capabilities of SQL. The key concept of window functions is to sort the input relation and to ordering does not exist, though, and hence expensive join-based solutions are required. In this paper we introduce y-constrained multi-dimensional aggregation (y-MDA), which supports multi-dimensional OLAP queries wi...
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In this contribution we introduce a notion of an m-polar aggregation operator as a generalization of aggregation operators and bipolar aggregation operators, and we introduce the main properties of these aggregation operators. Extensions of some (bipolar) aggregation operators to m-polar aggregation operators are also introduced, as well as metrics on the category space K×[0, 1] related tom-pol...
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ژورنال
عنوان ژورنال: Information Systems
سال: 2011
ISSN: 0306-4379
DOI: 10.1016/j.is.2010.07.005