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New remote sensing sensors now acquire high spatial and spectral Satellite Image Time Series (SITS) of the world. These series of images are a key component of classification systems that aim at obtaining up-to-date and accurate land cover…

Computer Vision and Pattern Recognition · Computer Science 2019-02-01 Charlotte Pelletier , Geoffrey I. Webb , Francois Petitjean

Temporal sequences of satellite images constitute a highly valuable and abundant resource for analyzing regions of interest. However, the automatic acquisition of knowledge on a large scale is a challenging task due to different factors…

Computer Vision and Pattern Recognition · Computer Science 2024-02-15 Carlos Echegoyen , Aritz Pérez , Guzmán Santafé , Unai Pérez-Goya , María Dolores Ugarte

Accurate crop-type classification from satellite time series is essential for agricultural monitoring. While various machine learning algorithms have been developed to enhance performance on data-scarce tasks, their evaluation often lacks…

Machine Learning · Computer Science 2025-09-26 Joana Reuss , Jan Macdonald , Simon Becker , Ekaterina Gikalo , Konrad Schultka , Lorenz Richter , Marco Körner

Recent advances in Transformer models allow for unprecedented sequence lengths, due to linear space and time complexity. In the meantime, relative positional encoding (RPE) was proposed as beneficial for classical Transformers and consists…

Machine Learning · Computer Science 2021-06-11 Antoine Liutkus , Ondřej Cífka , Shih-Lun Wu , Umut Şimşekli , Yi-Hsuan Yang , Gaël Richard

Rotary Positional Encoding (RoPE) is widely used in modern large language models. However, when sequences are extended beyond the range seen during training, rotary phases can enter out-of-distribution regimes, leading to spurious…

Machine Learning · Computer Science 2026-05-12 Riccardo Ali , Alessio Borgi , Christopher Irwin , Mario Severino , Pietro Liò

Large-area crop classification using multi-spectral imagery is a widely studied problem for several decades and is generally addressed using classical Random Forest classifier. Recently, deep convolutional neural networks (DCNN) have been…

Computer Vision and Pattern Recognition · Computer Science 2021-03-19 Muhammad Usman Qadeer , Salar Saeed , Murtaza Taj , Abubakr Muhammad

Recent developments in the remote sensing systems and image processing made it possible to propose a new method of the object classification and detection of the specific changes in the series of satellite Earth images (so called targeted…

Computer Vision and Pattern Recognition · Computer Science 2018-03-16 Vladimir Ignatiev , Alexey Trekin , Viktor Lobachev , Georgy Potapov , Evgeny Burnaev

Climate change is posing new challenges to crop-related concerns including food insecurity, supply stability and economic planning. As one of the central challenges, crop yield prediction has become a pressing task in the machine learning…

Machine Learning · Computer Science 2022-01-25 Joshua Fan , Junwen Bai , Zhiyun Li , Ariel Ortiz-Bobea , Carla P. Gomes

We conducted empirical experiments to assess the transferability of a light curve transformer to datasets with different cadences and magnitude distributions using various positional encodings (PEs). We proposed a new approach to…

The accurate mapping of crop production is crucial for ensuring food security, effective resource management, and sustainable agricultural practices. One way to achieve this is by analyzing high-resolution satellite imagery. Deep Learning…

Computer Vision and Pattern Recognition · Computer Science 2023-07-13 Priyanka Goyal , Sohan Patnaik , Adway Mitra , Manjira Sinha

Precise crop yield prediction provides valuable information for agricultural planning and decision-making processes. However, timely predicting crop yields remains challenging as crop growth is sensitive to growing season weather variation…

We propose Spatio-temporal Crop Aggregation for video representation LEarning (SCALE), a novel method that enjoys high scalability at both training and inference time. Our model builds long-range video features by learning from sets of…

Computer Vision and Pattern Recognition · Computer Science 2023-03-14 Sepehr Sameni , Simon Jenni , Paolo Favaro

Many commodity crops have growth stages during which they are particularly vulnerable to stress-induced yield loss. In-season crop progress information is useful for quantifying crop risk, and satellite remote sensing (RS) can be used to…

Machine Learning · Computer Science 2022-12-15 George Worrall , Jasmeet Judge

Crop yield prediction is one of the most important challenge, which is crucial to world food security and policy-making decisions. The conventional forecasting techniques are limited in their accuracy with reference to the fact that they…

Computer Vision and Pattern Recognition · Computer Science 2026-04-22 Gopal Krishna Shyam , Ila Chandrakar

Temporal Ensembling is a semi-supervised approach that allows training deep neural network models with a small number of labeled images. In this paper, we present our preliminary study on the effect of intraclass variability on temporal…

Computer Vision and Pattern Recognition · Computer Science 2020-08-24 Siddharth Vohra , Manikandan Ravikiran

Transformer architectures have established strong baselines in time series forecasting, yet they typically rely on positional encodings that assume uniform, index-based temporal progression. However, real-world systems, from shifting…

Machine Learning · Computer Science 2026-02-10 Yubin Kim , Viresh Pati , Jevon Twitty , Vinh Pham , Shihao Yang , Jiecheng Lu

Positional encoding is a vital component of Transformer architectures, enabling models to incorporate sequence order into self-attention mechanisms. Rotary Positional Embeddings (RoPE) have become a widely adopted solution due to their…

Computation and Language · Computer Science 2025-08-01 Ali Veisi , Delaram Fartoot , Hamidreza Amirzadeh

Length generalization is the ability of language models to maintain performance on inputs longer than those seen during pretraining. In this work, we introduce a simple yet powerful position encoding (PE) strategy, Random Float Sampling…

Machine Learning · Computer Science 2026-02-17 Atsushi Shimizu , Shohei Taniguchi , Yutaka Matsuo

Optical satellite sensors cannot see the Earth's surface through clouds. Despite the periodic revisit cycle, image sequences acquired by Earth observation satellites are therefore irregularly sampled in time. State-of-the-art methods for…

Computer Vision and Pattern Recognition · Computer Science 2021-08-17 Nando Metzger , Mehmet Ozgur Turkoglu , Stefano D'Aronco , Jan Dirk Wegner , Konrad Schindler

Accurate, timely, and farm-level crop type information is paramount for national food security, agricultural policy formulation, and economic planning, particularly in agriculturally significant nations like India. While remote sensing and…