نتایج جستجو برای: spatiotemporal prediction

تعداد نتایج: 282452  

1997
Rajesh P. N. Rao

We describe a biologically plausible model of dynamic recognition and learning in the visual cortex based on the statistical theory of Kalman filtering from optimal control theory. The model utilizes a hierarchical network whose successive levels implement Kalman filters operating over successively larger spatial and temporal scales. Each hierarchical level in the network predicts the current v...

Journal: :Remote Sensing 2016
Limin Liao Jinling Song Jindi Wang Zhiqiang Xiao Jian Wang

Studies related to vegetation dynamics in heterogeneous landscapes often require Normalized Difference Vegetation Index (NDVI) datasets with both high spatial resolution and frequent coverage, which cannot be satisfied by a single sensor due to technical limitations. In this study, we propose a new method called NDVI-Bayesian Spatiotemporal Fusion Model (NDVI-BSFM) for accurately and effectivel...

2004
Sujit K. Sahu Kanti V. Mardia K. V. Mardia

Short-term forecasts of air pollution levels in big cities are now reported in newspapers and other media outlets. Studies indicate that even short-term exposure to high levels of an air pollutant called atmospheric particulate matter can lead to long-term health effects. Data are typically observed at fixed monitoring stations throughout a study region of interest at different time points. Sta...

Journal: :JMPT 2011
Wadii Boulila Imed Riadh Farah Karim Saheb Ettabaâ Bassel Solaiman

The interpretation of remotely sensed images in a spatiotemporal context is becoming a valuable research topic. It helps predicting future trends and behaviors, allowing remotely sensed users to make proactive and knowledgedriven decisions. These decisions are useful for urban sprawl prevention, estimation of changes regarding productivity, and planting status of agricultural products, etc. How...

Journal: :CoRR 2016
Yannis M. Assael Brendan Shillingford Shimon Whiteson Nando de Freitas

Lipreading is the task of decoding text from the movement of a speaker’s mouth. Traditional approaches separated the problem into two stages: designing or learning visual features, and prediction. More recent deep lipreading approaches are end-to-end trainable (Wand et al., 2016; Chung & Zisserman, 2016a). All existing works, however, perform only word classification, not sentence-level sequenc...

2007
Sujit K. Sahu Kanti V. Mardia Petros Dellaportas

“A Bayesian kriged Kalman model for short-term forecasting of air pollution levels” (2005) Sujit K. Sahu and Kanti V. Mardia http://www.blackwell-synergy.com/links/doi/10.1111/j.14679876.2005.00480.x/pdf?cookieSet=1 Shor t-term forecasts of air pollution levels in big cities are now repor ted in newspapers and other media outlets. Studies indicate that even shor t-term exposure to high levels o...

2011
Jorge Alberto Achcar Edson Zangiacomi Martinez Vilma Mayumi Tachibana Edilson Ferreira Flores

Introduction: Malaria is a serious problem in the Brazilian Amazon region, and the detection of possible risk factors could be of great interest for public health authorities. The objective of this article was to investigate the association between environmental variables and the yearly registers of malaria in the Amazon region using Bayesian spatiotemporal methods. Methods: We used Poisson spa...

تقوی شهری, سید محمود, حاجیزاده, یعقوب, حسن‌زاده, اکبر, مغزی نجف آبادی, عظیمه, مهکی, بهزاد,

Background and Objectives: Annually about 7 million premature deaths occur due to air pollution in the world. Nitrogen oxides are among major air pollutants. Although many foreign exposure assessment studies have been carried out, Iranian studies are limited to primary analyses. Hence, in this research, we studied spatial variation of nitrogen oxides using spatiotemporal modeling in Tehran 2014...

Journal: :Remote Sensing 2021

Floods have brought a great threat to the life and property of human beings. Under premise strengthening flood control engineering measures following strategic thinking sustainable development, many achievements been made in forecasting recently. However, due complexity traditional lumped model distributed model, hydrologic parameter calibration process is full difficulties, leading long develo...

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