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In quantum field theory, virtual particles are carriers of relativistic wave fields, participate in vacuum fluctuations, and are a consequence of the implementation of the quantum uncertainty mechanism. Virtual particles, playing a…

Quantum Physics · Physics 2021-09-07 B. B. Levchenko

Recent years have witnessed a surge of publications aimed at tracing temporal changes in lexical semantics using distributional methods, particularly prediction-based word embedding models. However, this vein of research lacks the cohesion,…

Computation and Language · Computer Science 2018-06-14 Andrey Kutuzov , Lilja Øvrelid , Terrence Szymanski , Erik Velldal

Stein Variational Gradient Descent (SVGD) is a popular variational inference algorithm which simulates an interacting particle system to approximately sample from a target distribution, with impressive empirical performance across various…

Machine Learning · Statistics 2023-10-09 Aniket Das , Dheeraj Nagaraj

Change detection is a fundamental task in remote sensing, aiming to quantify the impacts of human activities and ecological dynamics on land-cover changes. Existing change detection methods are limited to predefined classes in training…

Computer Vision and Pattern Recognition · Computer Science 2026-04-14 You Su , Yonghong Song , Jingqi Chen , Zehan Wen

Concepts are key building blocks of higher level human understanding. Explainable AI (XAI) methods have shown tremendous progress in recent years, however, local attribution methods do not allow to identify coherent model behavior across…

Machine Learning · Computer Science 2022-03-14 Johanna Vielhaben , Stefan Blücher , Nils Strodthoff

Material properties strongly depend on the nature and concentration of defects. Characterizing these features may require nano- to atomic-scale resolution to establish structure-property relationships. 4D-STEM, a technique where diffraction…

Materials Science · Physics 2023-05-03 Stephanie M. Ribet , Colin Ophus , Roberto dos Reis , Vinayak P. Dravid

Semantic change detection (SCD) extends the multi-class change detection (MCD) task to provide not only the change locations but also the detailed land-cover/land-use (LCLU) categories before and after the observation intervals. This…

Computer Vision and Pattern Recognition · Computer Science 2022-05-04 Lei Ding , Haitao Guo , Sicong Liu , Lichao Mou , Jing Zhang , Lorenzo Bruzzone

Remote sensing image change captioning (RSICC) aims to articulate the changes in objects of interest within bi-temporal remote sensing images using natural language. Given the limitations of current RSICC methods in expressing general…

Computer Vision and Pattern Recognition · Computer Science 2024-07-22 Yongshuo Zhu , Lu Li , Keyan Chen , Chenyang Liu , Fugen Zhou , Zhenwei Shi

Determining dense semantic correspondences across objects and scenes is a difficult problem that underpins many higher-level computer vision algorithms. Unlike canonical dense correspondence problems which consider images that are spatially…

Computer Vision and Pattern Recognition · Computer Science 2015-05-18 Hilton Bristow , Jack Valmadre , Simon Lucey

In this paper, we address the task of detecting semantic parts on partially occluded objects. We consider a scenario where the model is trained using non-occluded images but tested on occluded images. The motivation is that there are…

Computer Vision and Pattern Recognition · Computer Science 2017-07-26 Jianyu Wang , Cihang Xie , Zhishuai Zhang , Jun Zhu , Lingxi Xie , Alan Yuille

Accurately interpreting words is vital in political science text analysis; some tasks require assuming semantic stability, while others aim to trace semantic shifts. Traditional static embeddings, like Word2Vec effectively capture long-term…

Computation and Language · Computer Science 2025-01-22 Ruiyu Zhang , Lin Nie , Ce Zhao , Qingyang Chen

Analyzing the pattern of semantic variation in long real-world texts such as books or transcripts is interesting from the stylistic, cognitive, and linguistic perspectives. It is also useful for applications such as text segmentation,…

Computation and Language · Computer Science 2023-08-10 Deven M. Mistry , Ali A. Minai

Semantic object parts can be useful for several visual recognition tasks. Lately, these tasks have been addressed using Convolutional Neural Networks (CNN), achieving outstanding results. In this work we study whether CNNs learn semantic…

Computer Vision and Pattern Recognition · Computer Science 2017-09-22 Abel Gonzalez-Garcia , Davide Modolo , Vittorio Ferrari

We present a semantic part detection approach that effectively leverages object information.We use the object appearance and its class as indicators of what parts to expect. We also model the expected relative location of parts inside the…

Computer Vision and Pattern Recognition · Computer Science 2018-03-28 Abel Gonzalez-Garcia , Davide Modolo , Vittorio Ferrari

This study investigates how well computational embeddings align with human semantic judgments in the processing of English compound words. We compare static word vectors (GloVe) and contextualized embeddings (BERT) against human ratings of…

Computation and Language · Computer Science 2025-11-03 Swarang Joshi

We apply a recently emerging "virtual detector" method to general free-particle wave packets. We discuss what is actually detected by a virtual detector and give analytical expressions in both the real space and the momentum space. We prove…

Atomic Physics · Physics 2017-09-18 Xu Wang

Despite their remarkable performance on a wide range of visual tasks, machine learning technologies often succumb to data distribution shifts. Consequently, a range of recent work explores techniques for detecting these shifts.…

Machine Learning · Computer Science 2021-05-04 Maleakhi A. Wijaya , Dmitry Kazhdan , Botty Dimanov , Mateja Jamnik

Spoken language change detection (LCD) refers to detecting language switching points in a multilingual speech signal. Speaker change detection (SCD) refers to locating the speaker change points in a multispeaker speech signal. The objective…

Audio and Speech Processing · Electrical Eng. & Systems 2023-10-10 Jagabandhu Mishra , S. R. Mahadeva Prasanna

Detecting lexical semantic change in smaller data sets, e.g. in historical linguistics and digital humanities, is challenging due to a lack of statistical power. This issue is exacerbated by non-contextual embedding models that produce one…

Computation and Language · Computer Science 2022-02-23 Yang Liu , Alan Medlar , Dorota Glowacka

Sphere packings are essential to the development of physical models for powders, composite materials, and the atomic structure of the liquid state. There is a strong scientific need to be able to assess the fit of packing models to data,…

Methodology · Statistics 2009-10-31 Jeffrey Picka