With the growing advancement of pervasive computing technologies, we are moving towards an era where spatio-temporal information will be necessary for access control. The use of such information can be used for enhancing the security of an application, and it can also be exploited to launch attacks. For critical applications, a formal model for spatio-temporal-based access control is needed tha...

We consider the problem of estimating the topology of spatial interactions in a discrete state, discrete time spatio-temporal graphical model where the interactions affect the temporal evolution of each agent in a network. Among other models, the susceptible, infected, recovered (SIR) model for interaction events fall into this framework. We pose the problem as a structure learning problem and ...

s of Talks ______________________________________________________________ 7 What are spatioTemporal Databases ___________________________________________________8 CHOROCHRONOS: A Research Network for Spatio-temporal Database Systems (TMR Programme) ______8 Requirements of Traffic Telematics to Spatial and Temporal Databases _______________________________9 Ontology-Based Map Integration _______...

Spatio-temporal index is one of the key technologies applied to spatio-temporal database engines. Methods for spatio-temporal indexes which consider efficiency of both temporal queries and spatial queries become hot topics in current research. In the versionincrement based spatio-temporal data model, “Version” is used to represent states of geographical phenomena, while “increment” changes of s...

Although intensive work has been devoted to spatio-temporal qualitative reasoning models, some issues such as management of complex objects life and motion remain. In this paper, we propose a model dealing with existence and presence of object concepts. First, we introduce spatio-temporal states, which express existing spatio-temporal relationships between two objects at a given time. Spatio-te...

There are complex spatio-temporal relationships among cadastral entities. Cadastral spatio-temporal data model should not only describe the data structure of cadastral objects, but also express cadastral spatio-temporal relationships between cadastral objects. In the past, many experts and scholars have proposed a variety of cadastral spatio-temporal data models, but few of them concentrated on...

We address a fundamental question concerning spatio-temporal database systems: “What are exactly spatio-temporal queries?” We define spatio-temporal queries to be computable mappings that are also generic, meaning that the result of a query may only depend to a limited extent on the actual internal representation of the spatio-temporal data. Genericity is defined as invariance under transformat...

Spatio-temporal databases are a topic of growing research interest but there is still little work reported on spatio-temporal query languages in line with the Object Database Management Group (ODMG) standard. This paper presents the design of such a language, called STOQL, by adding spatial and temporal dimensions to OQL. This language is based upon a data model that extends the ODMG Object Mod...

In this paper we propose a coupled-map lattice for modelling epidemic spread in a fuzzy setting. The presented model complies with the need for adequate modelling tools to describe and/or predict spatio-temporal phenomena, following the growing availability of spatio-temporal data. Furthermore, our approach does not rely on partial differential equations making it particularly suited to model e...