A Model for Representing Statistical Objects
نویسندگان
چکیده
In this paper the structure and the semantic properties of the entities stored in databases, whose data are only aggregate-type data, are defined and discussed. This choice is justified by the wide spread use of aggregate data without the corresponding raw data (i.e. micro-data, such as census data). Aggregate data are often derived by applying statistical aggregation (e.g. sum, count) and statistical analysis functions over micro-data, so that the relative databases are called "statistical databases". For this reason in this paper the above entities are called statistical object and a new representation model based on a graph representation is proposed. Finally representational problems in current models are identified and some solutions are proposed.
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