نتایج جستجو برای: spatio temporal model

تعداد نتایج: 2294021  

B. Farhadi Bansouleh F. Sargordi H. Van Keulen M.A. Sharifi

The Crop Growth Monitoring System (CGMS) has been applied for spatial biophysical resource analysis of Borkhar & Meymeh district in Esfahan province, Iran. The potentially suitable area for agriculture in the district has been divided into 128 homogeneous land units in terms of soil (physical characteristics), weather and administrative unit. Crop parameters required in the WOFOST simulatio...

D. Sun, G. White, M. Schootman,

In this paper, a Bayesian hierarchical model is used to anaylze the female breast cancer mortality rates for the State of Missouri from 1969 through 2001. The logit transformations of the mortality rates are assumed to be linear over the time with additive spatial and age effects as intercepts and slopes. Objective priors of the hierarchical model are explored. The Bayesian estimates are quite ...

2016
Zahra Karevan

In this paper, a data-driven modeling technique is proposed for temperature forecasting. Due to the high dimensionality, LASSO is used as feature selection approach. Considering spatio-temporal structure of the weather dataset, first LASSO is applied in a spatial and temporal scenario, independently. Next, a feature is included in the model if it is selected by both. Finally, Least Squares Supp...

2016
Matthew J Williams Mirco Musolesi

Recent advances in spatial and temporal networks have enabled researchers to more-accurately describe many real-world systems such as urban transport networks. In this paper, we study the response of real-world spatio-temporal networks to random error and systematic attack, taking a unified view of their spatial and temporal performance. We propose a model of spatio-temporal paths in time-varyi...

Journal: :Intell. Data Anal. 2009
Betsy George James M. Kang Shashi Shekhar

Developing a model that facilitates the representation and knowledge discovery on sensor data presents many challenges. With sensors reporting data at a very high frequency, resulting in large volumes of data, there is a need for a model that is memory efficient. Since sensor data is spatiotemporal in nature, the model must also support the time dependence of the data. Balancing the conflicting...

Journal: :Trans. GIS 2005
Seung-Hyun Jeong Norman W. Paton Alvaro A. A. Fernandes Tony Griffiths

Many applications capture, or make use of, spatial data that changes over time. This requirement for effective and efficient spatio-temporal data management has given rise to a range of research activities relating to spatio-temporal data management. Such work has sought to understand, for example, the requirements of different categories of application, and the modelling facilities that are mo...

2007
Majeed Pooyandeh Mohammad Saadi Mesgari Abbas Alimohammadi Roozbeh Shad

Spatio-temporal modeling for urban applications has received special attention lately. Due to the recent advances in computer and geospatial technologies, the temporal aspect of urban applications which was ignored in conventional systems, is under consideration nowadays. This new interest in spatio-temporal modeling, in spite of all its deficiencies, has brought about great advances in spatio-...

2013
Berkay Aydin

Large-scale spatio-temporal data is crucial for testing the spatio-temporal pattern mining algorithms. In this paper we present a data set generator that can generate moving spatio-temporal instances, with evolving regions. The characteristics of data generated can be configured with parameters given to program and those parameters allow users to test the performance of spatio-temporal mining a...

2012
Anja Bethmann Henning Scheich André Brechmann

It is widely accepted that the perception of human voices is supported by neural structures located along the superior temporal sulci. However, there is an ongoing discussion to what extent the activations found in fMRI studies are evoked by the vocal features themselves or are the result of phonetic processing. To show that the temporal lobes are indeed engaged in voice processing, short utter...

2003
Hong Shu Jun Chen

The Spatio-temporal object is a kind of complex temporal objects. Here, four basic constructors, i.e., tuple, set, list and temporal, are introduced to construct an algebraic model of complex temporal objects. Transformations from various traditional temporal relational models to the temporal object model are illustrated. The study has shown that the algebraic model of complex temporal objects ...

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