منابع مشابه
Temporal Data Management
A wide range of database applications manage time-varying information. Existing database technology currently provides little support for managing such data. The research area of temporal databases has made important contributions in characterizing the semantics of such information and in providing expressive and efficient means to model, store, and query temporal data. This paper introduces th...
متن کاملTemporal Data Management
In this paper we develop a framework for the support of temporal data. The concept of a time sequence is introduced, and shown to be an important fundamental concept for representing the semantics of temporal data and for efficient physical organization. We discuss properties of time sequences that allow the treatment of such sequences in a uniform fashion. These properties are exploited in ord...
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RFID technology can be used to significantly improve the efficiency of business processes by providing the capability of automatic identification and data capture. This technology poses many new challenges on current data management systems. RFID data are time-dependent, dynamically changing, in large volumes, and carry implicit semantics. RFID data management systems need to effectively suppor...
متن کاملTime and Temporal Data Management Operationalization in a Temporal GIS
The objective of this technical report is twofold. It gives an introduction to the notions and operationalization of time and temporal data in the context of data modeling and databases. The more philosophical aspects and conceptions of time is not discussed herein. Secondly, we introduce the previously presented time and temporal concepts in the realm of Geographic Information Systems (GIS), o...
متن کاملRelational Algebra for Spatio-Temporal Data Management
A generic data type for time is defined as the set In = {1, 2, ..., n} , n > 0 [2]. The elements of In are called quanta of time or (time) instants. Based on this data type, another generic data type is defined, PERIOD(In), with elements of the form [p, q] ≡ { i | i ∈ In, p ≤ i ≤ q} that are called periods (of time). If the elements of In are replaced by n consecutive dates, then the respective...
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ژورنال
عنوان ژورنال: IEEE Transactions on Knowledge and Data Engineering
سال: 1999
ISSN: 1041-4347
DOI: 10.1109/69.755613