Temporal logics in AI: semantical and ontological considerations
Artificial Intelligence
Supporting valid-time indeterminacy
ACM Transactions on Database Systems (TODS)
The object data standard: ODMG 3.0
The object data standard: ODMG 3.0
A relational model of data for large shared data banks
Communications of the ACM
The TSQL2 Temporal Query Language
The TSQL2 Temporal Query Language
Time Granularities in Databases, Data Mining and Temporal Reasoning
Time Granularities in Databases, Data Mining and Temporal Reasoning
Supporting User-Defined Granularities in a Spatiotemporal Conceptual Model
Annals of Mathematics and Artificial Intelligence
Efficiently Supporting Temporal Granularities
IEEE Transactions on Knowledge and Data Engineering
The Tripod spatio-historical data model
Data & Knowledge Engineering
Querying Multigranular Spatio-temporal Objects
DEXA '08 Proceedings of the 19th international conference on Database and Expert Systems Applications
Towards a Formal Framework for Spatio-Temporal Granularities
TIME '08 Proceedings of the 2008 15th International Symposium on Temporal Representation and Reasoning
Multigranular spatio-temporal models: implementation challenges
Proceedings of the 16th ACM SIGSPATIAL international conference on Advances in geographic information systems
Adaptive Management of Multigranular Spatio-Temporal Object Attributes
SSTD '09 Proceedings of the 11th International Symposium on Advances in Spatial and Temporal Databases
Semantic granularity for the semantic web
OTM'06 Proceedings of the 2006 international conference on On the Move to Meaningful Internet Systems: AWeSOMe, CAMS, COMINF, IS, KSinBIT, MIOS-CIAO, MONET - Volume Part II
Journal of Systems and Software
Multi-scale windowing over trajectory streams
ER'12 Proceedings of the 2012 international conference on Advances in Conceptual Modeling
Providing multi-scale consistency for multi-scale geospatial data
Proceedings of the 25th International Conference on Scientific and Statistical Database Management
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The capability of representing spatio-temporal objects is fundamental when analysing and monitoring the changes in the spatial configuration of a geographical area over a period of time. An important requirement when managing spatio-temporal objects is the support for multiple granularities. In this paper we discuss how the modelling constructs of object data models can be extended for representing and queryingmulti-granular spatio-temporal objects. In particular, we describe object-oriented formalizations for granularities, granules, and multi-granular values, exploring the issues of value conversions. Furthermore, we formally define an object-oriented multi-granular query language, and discuss dynamic multi-granularity. Finally, we discuss open research issues.