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We report on the use of the recently-developed Mathematica package \emph{VEST} (Vector Einstein Summation Tools) to automatically derive the guiding center transformation. Our Mathematica code employs a recursive procedure to derive the…

Plasma Physics · Physics 2013-12-17 J. W. Burby , J. Squire , H. Qin

Learning vector calculus techniques is one of the major missions to be accomplished by physics undergraduates. However, beginners report various difficulties dealing with the index notation due to its bulkiness. Meanwhile, there have been…

Physics Education · Physics 2024-06-19 Joon-Hwi Kim , Maverick S. H. Oh , Keun-Young Kim

The R package calculus implements C++ optimized functions for numerical and symbolic calculus, such as the Einstein summing convention, fast computation of the Levi-Civita symbol and generalized Kronecker delta, Taylor series expansion,…

Mathematical Software · Computer Science 2022-10-05 Emanuele Guidotti

Given a large tensor, how can we decompose it to sparse core tensor and factor matrices such that it is easier to interpret the results? How can we do this without reducing the accuracy? Existing approaches either output dense results or…

Numerical Analysis · Computer Science 2019-04-10 Moonjeong Park , Jun-Gi Jang , Lee Sael

Accurate and efficient entity resolution (ER) has been a problem in data analysis and data mining projects for decades. In our work, we are interested in developing ER methods to handle big data. Good public datasets are restricted in this…

Methodology · Statistics 2020-09-08 Samudra Herath , Matthew Roughan , Gary Glonek

Time series forecasting is a challenging task with applications in a wide range of domains. Auto-regression is one of the most common approaches to address these problems. Accordingly, observations are modelled by multiple regression using…

Machine Learning · Statistics 2020-10-15 Vitor Cerqueira , Nuno Moniz , Carlos Soares

Recent advancements in vision-language models (VLMs) have expanded their potential for real-world applications, enabling these models to perform complex reasoning on images. In the widely used fully autoregressive transformer-based models…

Computer Vision and Pattern Recognition · Computer Science 2024-10-21 Yuxin Wen , Qingqing Cao , Qichen Fu , Sachin Mehta , Mahyar Najibi

Real-world applications are stretching context windows to hundreds of thousand of tokens while Large Language Models (LLMs) swell from billions to trillions of parameters. This dual expansion send compute and memory costs skyrocketing,…

Computation and Language · Computer Science 2025-12-12 Ling Xing , Alex Jinpeng Wang , Rui Yan , Xiangbo Shu , Jinhui Tang

Computing derivatives of tensor expressions, also known as tensor calculus, is a fundamental task in machine learning. A key concern is the efficiency of evaluating the expressions and their derivatives that hinges on the representation of…

Machine Learning · Computer Science 2020-10-08 Sören Laue , Matthias Mitterreiter , Joachim Giesen

Vector operations play an important role in high performance computing and are typically provided by highly optimized libraries that implement the BLAS (Basic Linear Algebra Subprograms) interface. In C++ templates and operator overloading…

Mathematical Software · Computer Science 2011-09-07 J. Progsch , Y. Ineichen , A. Adelmann

The paper presents a REDUCE program for the simplification of tensor expressions that are considered as formal indexed objects. The proposed algorithm is based on the consideration of tensor expressions as vectors in some linear space. This…

Symbolic Computation · Computer Science 2018-11-14 V. A. Ilyin , A. P. Kryukov

The novel "Volume-Enclosing Surface exTraction Algorithm" (VESTA) generates triangular isosurfaces from computed tomography volumetric images and/or three-dimensional (3D) simulation data. Here, we present various benchmarks for GPU-based…

Graphics · Computer Science 2016-01-27 B. R. Schlei

This work presents a progressive image vectorization technique that reconstructs the raster image as layer-wise vectors from semantic-aligned macro structures to finer details. Our approach introduces a new image simplification method…

Computer Vision and Pattern Recognition · Computer Science 2025-03-11 Zhenyu Wang , Jianxi Huang , Zhida Sun , Yuanhao Gong , Daniel Cohen-Or , Min Lu

The Abstraction and Reasoning Corpus for Artificial General Intelligence (ARC-AGI) is a generative, few-shot fluid intelligence benchmark. Although humans effortlessly solve ARC-AGI, it remains extremely difficult for even the most advanced…

Artificial Intelligence · Computer Science 2025-11-13 Isaac Joffe , Chris Eliasmith

Vectorization is a compiler optimization that replaces multiple operations on scalar values with a single operation on vector values. Although common in traditional compilers such as rustc, clang, and gcc, vectorization is not common in the…

Unsupervised learning of low-dimensional, semantic representations of words and entities has recently gained attention. In this paper we describe the Semantic Entity Retrieval Toolkit (SERT) that provides implementations of our previously…

Computation and Language · Computer Science 2017-07-18 Christophe Van Gysel , Maarten de Rijke , Evangelos Kanoulas

This paper shows how to reduce the computational cost for a variety of common machine vision tasks by operating directly in the compressed domain, particularly in the context of hardware acceleration. Pyramid Vector Quantization (PVQ) is…

Computer Vision and Pattern Recognition · Computer Science 2016-03-31 Vincenzo Liguori

When writing high-performance code for numerical computation in a scripting language like MATLAB, it is crucial to have the operations in a large for-loop vectorized. If not, the code becomes too slow to use, even for a moderately large…

Mathematical Software · Computer Science 2024-04-26 Alexej Moskovka , Talal Rahman , Jan Valdman , Jon Eivind Vatne

Robots today can exploit the rich world knowledge of large language models to chain simple behavioral skills into long-horizon tasks. However, robots often get interrupted during long-horizon tasks due to primitive skill failures and…

Representing meaning in the form of high dimensional vectors is a common and powerful tool in biologically inspired architectures. While the meaning of a set of concepts can be summarized by taking a (possibly weighted) sum of their…

Artificial Intelligence · Computer Science 2018-09-25 Douglas Summers-Stay , Peter Sutor , Dandan Li
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