scholarly journals Computational sustainability

2019 ◽  
Vol 62 (9) ◽  
pp. 56-65 ◽  
Author(s):  
Carla Gomes ◽  
Thomas Dietterich ◽  
Christopher Barrett ◽  
Jon Conrad ◽  
Bistra Dilkina ◽  
...  
2020 ◽  
Vol 53 (5) ◽  
pp. 1-29
Author(s):  
Deya Chatterjee ◽  
Shrisha Rao

Author(s):  
Junwen Bai ◽  
Shufeng Kong ◽  
Carla Gomes

Multi-label classification is the challenging task of predicting the presence and absence of multiple targets, involving representation learning and label correlation modeling. We propose a novel framework for multi-label classification, Multivariate Probit Variational AutoEncoder (MPVAE), that effectively learns latent embedding spaces as well as label correlations. MPVAE learns and aligns two probabilistic embedding spaces for labels and features respectively. The decoder of MPVAE takes in the samples from the embedding spaces and models the joint distribution of output targets under a Multivariate Probit model by learning a shared covariance matrix. We show that MPVAE outperforms the existing state-of-the-art methods on important computational sustainability applications as well as on other application domains, using public real-world datasets. MPVAE is further shown to remain robust under noisy settings. Lastly, we demonstrate the interpretability of the learned covariance by a case study on a bird observation dataset.


AI Magazine ◽  
2014 ◽  
Vol 35 (2) ◽  
pp. 8-18 ◽  
Author(s):  
Andreas Krause ◽  
Daniel Golovin ◽  
Sarah Converse

Many problems in computational sustainability require making a sequence of decisions in complex, uncertain environments. Such problems are generally notoriously difficult. In this article, we review the recently discovered notion of adaptive submodularity, an intuitive diminishing returns condition that generalizes the classical notion of submodular set functions to sequential decision problems. Problems exhibiting the adaptive submodularity property can be efficiently and provably near-optimally solved using simple myopic policies. We illustrate this concept in several case studies of interest in computational sustainability: First, we demonstrate how it can be used to efficiently plan for resolving uncertainty in adaptive management scenarios. Secondly, we show how it applies to dynamic conservation planning for protecting endangered species, a case study carried out in collaboration with the US Geological Survey and the US Fish and Wildlife Service.


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