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We introduce pygrank, an open source Python package to define, run and evaluate node ranking algorithms. We provide object-oriented and extensively unit-tested algorithm components, such as graph filters, post-processors, measures,…

Machine Learning · Computer Science 2021-10-19 Emmanouil Krasanakis , Symeon Papadopoulos , Ioannis Kompatsiaris , Andreas Symeonidis

As Earth science enters the era of big data, artificial intelligence (AI) not only offers great potential for solving geoscience problems, but also plays a critical role in accelerating the understanding of the complex, interactive, and…

Computer Vision and Pattern Recognition · Computer Science 2024-05-08 Jin-Jian Xu , Hao Zhang , Chao-Sheng Tang , Lin Li , Bin Shi

This paper proposes ReaGeo, an end-to-end geocoding framework based on large language models, designed to overcome the limitations of traditional multi-stage approaches that rely on text or vector similarity retrieval over geographic…

Artificial Intelligence · Computer Science 2026-04-24 Jian Cui , Zhiyuan Ren , Desheng Weng , Yongqi Zhao , Gong Wenbin , Yu Lei , Zhenning Dong

The rapid advancement of multimodal large language models (LLMs) has opened new frontiers in artificial intelligence, enabling the integration of diverse large-scale data types such as text, images, and spatial information. In this paper,…

Artificial Intelligence · Computer Science 2025-03-21 Long Yuan , Fengran Mo , Kaiyu Huang , Wenjie Wang , Wangyuxuan Zhai , Xiaoyu Zhu , You Li , Jinan Xu , Jian-Yun Nie

This work addresses the challenge of analyzing geometric structures using Kendall's 3D Shape Space. While Riemannian geometry provides a robust framework for shape analysis (independent of scale, position, and orientation) the transition…

HEALPix -- the Hierarchical Equal Area iso-Latitude Pixelization -- is a versatile data structure with an associated library of computational algorithms and visualization software that supports fast scientific applications executable…

Astrophysics · Physics 2011-05-05 K. M. Gorski , E. Hivon , A. J. Banday , B. D. Wandelt , F. K. Hansen , M. Reinecke , M. Bartelman

Galaxy morphology analysis involves studying galaxies based on their shapes and structures. For such studies, fundamental tasks include identifying and classifying galaxies in astronomical images, as well as retrieving visually or…

Computer Vision and Pattern Recognition · Computer Science 2025-09-04 Ruoqi Wang , Haitao Wang , Qiong Luo

X-ray absorption spectroscopy (XAS) is a powerful technique to probe the electronic and structural properties of materials. With the rapid growth in both the volume and complexity of XAS datasets driven by advancements in synchrotron…

Computational Physics · Physics 2025-02-25 Xue Han , Haodong Yao , Fei Zhan , Xueqi Song , Junfang Zhao , Haifeng Zhao

In this paper, we propose a novel learning scheme called epoch-evolving Gaussian Process Guided Learning (GPGL), which aims at characterizing the correlation information between the batch-level distribution and the global data distribution.…

Machine Learning · Computer Science 2024-03-13 Jiabao Cui , Xuewei Li , Bin Li , Hanbin Zhao , Bourahla Omar , Xi Li

Geospatial modeling provides critical solutions for pressing global challenges such as sustainability and climate change. Existing large language model (LLM)-based algorithm discovery frameworks, such as AlphaEvolve, excel at evolving…

Artificial Intelligence · Computer Science 2025-09-29 Peng Luo , Xiayin Lou , Yu Zheng , Zhuo Zheng , Stefano Ermon

We introduce c-lasso, a Python package that enables sparse and robust linear regression and classification with linear equality constraints. The underlying statistical forward model is assumed to be of the following form: \[ y = X \beta +…

Computation · Statistics 2020-11-03 Léo Simpson , Patrick L. Combettes , Christian L. Müller

Bibliometric analysis is a critical tool for understanding the structure, dynamics, and impact of scientific research. Traditional methods often fall short in capturing the intricate relationships and evolving trends within scientific…

Digital Libraries · Computer Science 2026-01-27 Mirko Lai , Salvatore Vilella , Federica Cena , Giancarlo Ruffo

Mathematical programming is widely employed across various sectors - such as logistics, energy, and workforce planning - to model and solve industrial optimisation problems, but its use requires substantial domain expertise. Large language…

Programming Languages · Computer Science 2026-05-29 Roberto Rossi , Steven D. Prestwich

X-ray propagation-based imaging techniques are well-established at synchrotron radiation and laboratory sources. However, most reconstruction algorithms for such image modalities, also known as phase retrieval algorithms, have been…

Image and Video Processing · Electrical Eng. & Systems 2020-12-16 Max Langer , Yuhe Zhang , Diogo Figueirinhas , Jean-Baptiste Forien , Claire Mouton , Rajmund Mokso , Pablo Villanueva-Perez

To facilitate flexible and efficient structural bioinformatics analyses, new functionality for three-dimensional structure processing and analysis has been introduced into PyCogent -- a popular feature-rich framework for sequence-based…

Biomolecules · Quantitative Biology 2018-10-01 Marcin Cieslik , Zygmunt Derewenda , Cameron Mura

Worldwide image geolocalization, which aims to predict the GPS coordinates of any image on Earth, remains challenging due to global visual diversity. Recent generative approaches based on Retrieval-Augmented Generation (RAG) and Large…

Information Retrieval · Computer Science 2026-04-29 Tung-Duong Le-Duc , Hoang-Quoc Nguyen-Son , Minh-Son Dao

The Python package pyABC provides a framework for approximate Bayesian computation (ABC), a likelihood-free parameter inference method popular in many research areas. At its core, it implements a sequential Monte-Carlo (SMC) scheme, with…

Quantitative Methods · Quantitative Biology 2022-03-25 Yannik Schälte , Emmanuel Klinger , Emad Alamoudi , Jan Hasenauer

Graph Augmentation Learning (GAL) provides outstanding solutions for graph learning in handling incomplete data, noise data, etc. Numerous GAL methods have been proposed for graph-based applications such as social network analysis and…

Machine Learning · Computer Science 2022-03-18 Shuo Yu , Huafei Huang , Minh N. Dao , Feng Xia

Machine learning is gaining popularity in a broad range of areas working with geographic data, such as ecology or atmospheric sciences. Here, data often exhibit spatial effects, which can be difficult to learn for neural networks. In this…

Machine Learning · Computer Science 2021-08-20 Konstantin Klemmer , Daniel B. Neill

Data aggregation in Geographic Information Systems (GIS) is only marginally present in commercial systems nowadays, mostly through ad-hoc solutions. In this paper, we first present a formal model for representing spatial data. This model…

Databases · Computer Science 2007-07-31 Leticia Gomez , Sofie Haesevoets , Bart Kuijpers , Alejandro Vaisman