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We propose a novel fast and robust 3D point clouds segmentation framework via coupled feature selection, named 3DCFS, that jointly performs semantic and instance segmentation. Inspired by the human scene perception process, we design a…

Robotics · Computer Science 2020-03-03 Liang Du , Jingang Tan , Xiangyang Xue , Lili Chen , Hongkai Wen , Jianfeng Feng , Jiamao Li , Xiaolin Zhang

In cosmology, emulators play a crucial role by providing fast and accurate predictions of complex physical models, enabling efficient exploration of high-dimensional parameter spaces that would be computationally prohibitive with direct…

Cosmology and Nongalactic Astrophysics · Physics 2026-04-10 Deaglan J. Bartlett , Shivam Pandey

Current research efforts in aeroelasticity aim at including higher fidelity aerodynamic results into the simulation frameworks. In the present effort, the Python--based Fluid--Structure Interaction framework of the well known SU2 code has…

Computational Engineering, Finance, and Science · Computer Science 2021-09-28 Nicola Fonzi , Vittorio Cavalieri , Alessandro De Gaspari , Sergio Ricci

QC Lab is an open-source Python package for QC dynamics simulations aimed to promote the development of QC algorithms, and their application to a wide variety of relevant model problems. It follows a modular design that facilitates…

Chemical Physics · Physics 2025-10-28 Alex Krotz , Ethan Byrd , Ken Miyazaki , Roel Tempelaar

We present Kosmulator, a modular and vectorised Python framework designed to accelerate the statistical testing of cosmological models. As the theoretical landscape expands beyond standard $\Lambda$CDM, implementing new expansion histories…

Cosmology and Nongalactic Astrophysics · Physics 2026-02-10 Renier T. Hough , Robert Rugg , Shambel Sahlu , Amare Abebe

This paper reports the development of a Python Non-Uniform Fast Fourier Transform (PyNUFFT) package, which accelerates non-Cartesian image reconstruction on heterogeneous platforms. Scientific computing with Python encompasses a mature and…

Medical Physics · Physics 2017-10-10 Jyh-Miin Lin

A new open source tool for fluid simulation of multi-component plasmas is presented, based on a flexible software design that is applicable to scientific simulations in a wide range of fields. This design enables the same code to be…

Plasma Physics · Physics 2023-06-21 Ben Dudson , Mike Kryjak , Hasan Muhammed , Peter Hill , John Omotani

Tomographic three-dimensional 21 cm images from the epoch of reionization contain a wealth of information about the reionization of the intergalactic medium by astrophysical sources. Conventional power spectrum analysis cannot exploit the…

Cosmology and Nongalactic Astrophysics · Physics 2022-02-22 Xiaosheng Zhao , Yi Mao , Cheng Cheng , Benjamin D. Wandelt

FLASH is a publicly available high performance application code which has evolved into a modular, extensible software system from a collection of unconnected legacy codes. FLASH has been successful because its capabilities have been driven…

Software Engineering · Computer Science 2014-09-10 A. Dubey , L. B. Reid , K. Weide , K. Antypas , M. K. Ganapathy , K. Riley , D. Sheeler , A. Siegal

The 21-cm signal from neutral hydrogen in the early universe will provide unprecedented information about the first stars and galaxies. Extracting this information, however, requires accounting for many unknown astrophysical processes.…

Cosmology and Nongalactic Astrophysics · Physics 2023-07-21 Charlotte A. Mason , Julian B. Muñoz , Bradley Greig , Andrei Mesinger , Jaehong Park

The wavelet scattering transform is an invariant signal representation suitable for many signal processing and machine learning applications. We present the Kymatio software package, an easy-to-use, high-performance Python implementation of…

We present a novel application of cosmological rescaling, or "remapping," to generate 21 cm intensity mapping mocks for different cosmologies. The remapping method allows for computationally efficient generation of N-body catalogs by…

We measure several properties of the reionization process and the corresponding low-frequency 21-cm signal associated with the neutral hydrogen distribution, using a large volume, high resolution simulation of cosmic reionization. The…

This article describes the design and development of a system for remote indoor 3D monitoring using an undetermined number of Microsoft(R) Kinect sensors. In the proposed client-server system, the Kinect cameras can be connected to…

Computer Vision and Pattern Recognition · Computer Science 2014-03-13 M. Martínez-Zarzuela , M. Pedraza-Hueso , F. J. Díaz-Pernas , D. González-Ortega , M. Antón-Rodríguez

Large-scale modelling of three-dimensional controlled-source electromagnetic (CSEM) surveys used to be feasible only for large companies and research consortia. This has changed over the last few years, and today there exists a selection of…

Feature extraction and matching are the basic parts of many robotic vision tasks, such as 2D or 3D object detection, recognition, and registration. As is known, 2D feature extraction and matching have already achieved great success.…

Computer Vision and Pattern Recognition · Computer Science 2024-01-11 Yunge Cui , Yinlong Zhang , Jiahua Dong , Haibo Sun , Xieyuanli Chen , Feng Zhu

Existing LoRaWAN/LoRa simulators consist of large, complicated C++ codebases and often do not support all device classes. This paper presents the design of a simple to use, Python-based discrete-event simulator that addresses these gaps…

Networking and Internet Architecture · Computer Science 2026-05-21 Matthijs Reyers , Niels Hokke , R. R. Venkatesha Prasad

Cosmic structure simulations have improved enormously over the past decade, both in terms of the resolution which can be achieved, and with the addition of hydrodynamic and other techniques to formerly purely gravitational methods. This is…

Astrophysics · Physics 2007-05-23 H. M. P. Couchman

SAM3D enables scalable, open-world 3D reconstruction from complex scenes, yet its deployment is hindered by prohibitive inference latency. In this work, we conduct the \textbf{first systematic investigation} into its inference dynamics,…

Computer Vision and Pattern Recognition · Computer Science 2026-02-06 Weilun Feng , Mingqiang Wu , Zhiliang Chen , Chuanguang Yang , Haotong Qin , Yuqi Li , Xiaokun Liu , Guoxin Fan , Zhulin An , Libo Huang , Yulun Zhang , Michele Magno , Yongjun Xu