Results 11 to 20 of about 4,674,553 (309)

Modeling spatial patterns of shapes [PDF]

open access: yes2008 15th IEEE International Conference on Image Processing, 2008
We introduce a framework for modeling spatial patterns of shapes formed by multiple objects in an image. Our approach is graph-based where each node denotes an object and attributes of a node consist of that object's shape, position, orientation, and scale.
Anuj Srivastava   +2 more
openaire   +3 more sources

Spatio-Temporal Sequence Decomposition and Prediction Based on SVD and ARIMA [PDF]

open access: yesJisuanji gongcheng, 2021
To address the difficulty of estimating the spatial weight matrix in the traditional spatial-temporal sequence modeling process,this paper proposes a spatial-temporal sequence decomposition model,ST-SVD,based on singular value decomposition.The original ...
YANG Lining, LI Yanting
doaj   +1 more source

Effective Data Management and Spatial Analytics

open access: yes, 2021
This webinar introduced the implementations of effective data management and spatial analytics by academic and industry leaders of the field, and discuss the directions for further enhancement through integration with a cloud-based platform for research ...
Spatial Data Lab
core   +1 more source

Underestimates of Grassland Gross Primary Production in MODIS Standard Products

open access: yesRemote Sensing, 2018
As the biggest carbon flux of terrestrial ecosystems from photosynthesis, gross primary productivity (GPP) is an important indicator in understanding the carbon cycle and biogeochemical process of terrestrial ecosystems.
Xiaoyan Zhu   +9 more
doaj   +1 more source

Spatial pattern switching enables cyclic evolution in spatial epidemics. [PDF]

open access: yesPLoS Computational Biology, 2010
Infectious diseases often spread as spatial epidemic outbreak waves. A number of model studies have shown that such spatial pattern formation can have important consequences for the evolution of pathogens.
Maarten Chris Boerlijst   +1 more
doaj   +1 more source

Spatiotemporal dynamics of forest ecosystem carbon budget in Guizhou: customisation and application of the CBM-CFS3 model for China

open access: yesCarbon Balance and Management, 2022
Background Countries seeking to mitigate climate change through forests require suitable modelling approaches to predict carbon (C) budget dynamics in forests and their responses to disturbance and management.
Yuzhi Tang   +4 more
doaj   +1 more source

Accuracy Assessment and Inter-Comparison of Eight Medium Resolution Forest Products on the Loess Plateau, China

open access: yesISPRS International Journal of Geo-Information, 2017
Forests play an important role in maintaining ecosystem services, especially in ecologically fragile areas such as the Loess Plateau (LP) in China. However, there is still great uncertainty in the spatial extent and distribution of forests in such a ...
Zhiqi Yang   +9 more
doaj   +1 more source

Annual 30-m big Lake Maps of the Tibetan Plateau in 1991–2018

open access: yesScientific Data, 2022
Measurement(s) lake area and number Technology Type(s) satellite images and coding Sample Characteristic - Organism lake Sample Characteristic - Environment plateau-climate Sample Characteristic - Location Tibetan ...
Rui Zhao   +6 more
doaj   +1 more source

Small-scale spatial pattern and dynamics of experimental plant communities [PDF]

open access: yes, 2007
Plant-plant interference is inherently local and seed dispersal generally limited. Both processes generate spatial and genetic structure within plant populations and communities that need to be better understood in order to predict dynamic community ...
Monzeglio, Ursula
core   +1 more source

Predicting Climate Change Impacts to the Canadian Boreal Forest

open access: yesDiversity, 2014
Climate change is expected to alter temperature, precipitation, and seasonality with potentially acute impacts on Canada’s boreal. In this research we predicted future spatial distributions of biodiversity in Canada’s boreal for 2020, 2050, and 2080 ...
Trisalyn A. Nelson   +6 more
doaj   +1 more source

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