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Variational Autoencoder is a scalable method for learning latent variable models of complex data. It employs a clear objective that can be easily optimized. However, it does not explicitly measure the quality of learned representations. We…

机器学习 · 计算机科学 2020-05-29 Andriy Serdega , Dae-Shik Kim

Data assimilation refers to a set of algorithms designed to compute the optimal estimate of a system's state by refining the prior prediction (known as background states) using observed data. Variational assimilation methods rely on the…

机器学习 · 计算机科学 2024-05-24 Yi Xiao , Qilong Jia , Wei Xue , Lei Bai

As the world population increases and arable land decreases, it becomes vital to improve the productivity of the agricultural land available. Given the weather and soil properties, farmers need to take critical decisions such as which seed…

计算机视觉与模式识别 · 计算机科学 2017-10-26 Gunjan Sehgal , Bindu Gupta , Kaushal Paneri , Karamjit Singh , Geetika Sharma , Gautam Shroff

Generalized estimating equations (GEE) are of great importance in analyzing clustered data without full specification of multivariate distributions. A recent approach jointly models the mean, variance, and correlation coefficients of…

统计方法学 · 统计学 2025-01-13 Zhenyu Xu , Jason P. Fine , Wenling Song , Jun Yan

Accurate yield forecasting is essential for making informed policies and long-term decisions for food security. Earth Observation (EO) data and machine learning algorithms play a key role in providing a comprehensive and timely view of crop…

机器学习 · 计算机科学 2023-06-09 Anh Nhat Nhu , Ritvik Sahajpal , Christina Justice , Inbal Becker-Reshef

Optimal computations under uncertainty require an adequate probabilistic representation about beliefs. Deep generative models, and specifically Variational Autoencoders (VAEs), have the potential to meet this demand by building latent…

Deep generative models have been demonstrated as problematic in the unsupervised out-of-distribution (OOD) detection task, where they tend to assign higher likelihoods to OOD samples. Previous studies on this issue are usually not…

机器学习 · 计算机科学 2024-01-04 Zezhen Zeng , Bin Liu

The prediction of crop yields internationally is a crucial objective in agricultural research. Thus, this study implements 6 regression models (Linear, Tree, Gradient Descent, Gradient Boosting, K Nearest Neighbors, and Random Forest) to…

Yield forecasting, the science of predicting agricultural productivity before the crop harvest occurs, helps a wide range of stakeholders make better decisions around agricultural planning. This study aims to investigate whether machine…

机器学习 · 计算机科学 2024-03-14 Djavan De Clercq , Adam Mahdi

Yield estimation is a powerful tool in vineyard management, as it allows growers to fine-tune practices to optimize yield and quality. However, yield estimation is currently performed using manual sampling, which is time-consuming and…

计算机视觉与模式识别 · 计算机科学 2022-08-05 Alexander G. Olenskyj , Brent S. Sams , Zhenghao Fei , Vishal Singh , Pranav V. Raja , Gail M. Bornhorst , J. Mason Earles

Global gridded crop models (GGCMs) are crucial to project the impacts of climate change on agricultural productivity and assess associated risks for food security. Despite decades of development, state-of-the-art GGCMs retain substantial…

Crop yield is affected by various soil and environmental parameters and can vary significantly. Therefore, a crop yield estimation model which can predict pre-harvest yield is required for food security. The study is conducted on tea forms…

机器学习 · 计算机科学 2025-12-30 Nisar Ahmed , Hafiz Muhammad Shahzad Asif , Gulshan Saleem , Muhammad Usman Younus

We describe a novel weakly supervised deep learning framework that combines both the discriminative and generative models to learn meaningful representation in the multiple instance learning (MIL) setting. MIL is a weakly supervised…

机器学习 · 计算机科学 2018-07-09 Shabnam Ghaffarzadegan

In recent years Variation Autoencoders have become one of the most popular unsupervised learning of complicated distributions.Variational Autoencoder (VAE) provides more efficient reconstructive performance over a traditional autoencoder.…

机器学习 · 统计学 2017-07-12 Gautam Ramachandra

Agriculture plays a crucial role in the global economy and social stability, and accurate crop yield prediction is essential for rational planting planning and decision-making. This study focuses on crop yield Time-Series Data prediction.…

计算机与社会 · 计算机科学 2025-02-18 Yueru Yan , Yue Wang , Jialin Li , Jingwei Zhang , Xingye Mo

Materials informatics (MI), which uses artificial intelligence and data analysis techniques to improve the efficiency of materials development, is attracting increasing interest from industry. One of its main applications is the rapid…

机器学习 · 计算机科学 2023-02-07 Yoshihiro Osakabe , Akinori Asahara

Quantifying the variation in yield component traits of maize (Zea mays L.), which together determine the overall productivity of this globally important crop, plays a critical role in plant genetics research, plant breeding, and the…

Prediction of annual crop yields at a county granularity is important for national food production and price stability. In this paper, towards the goal of better crop yield prediction, leveraging recent graph signal processing (GSP) tools…

机器学习 · 计算机科学 2022-08-05 Saghar Bagheri , Chinthaka Dinesh , Gene Cheung , Timothy Eadie

Many studies have recently explored the information from the satellite-remotely sensed data (SRSD) for estimating the crop production statistics. The value of this information depends on the aerial and spatial resolutions of SRSD. The SRSD…

应用统计 · 统计学 2019-05-16 Sumanta Kumar Das , Randhir Singh

Rice is a staple food of global importance in terms of trade, nutrition, and economic growth. Among Asian nations such as China, India, Pakistan, Thailand, Vietnam and Indonesia are leading producers of both long and short grain varieties,…

计算机视觉与模式识别 · 计算机科学 2025-08-28 Hamza Khan