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Metric data plays an important role in various settings such as metric-based indexing, clustering, classification, and approximation algorithms in general. Due to measurement error, noise, or an inability to completely gather all the data,…

计算几何 · 计算机科学 2018-07-24 Chenglin Fan , Benjamin Raichel , Gregory Van Buskirk

This article presents a new distance for measuring shape dissimilarity between objects. Recent publications introduced the use of eigenvalues of the Laplace operator as compact shape descriptors. Here, we revisit the eigenvalues to define a…

计算机视觉与模式识别 · 计算机科学 2015-03-20 Ender Konukoglu , Ben Glocker , Antonio Criminisi , Kilian M. Pohl

Optimal Transport (OT) metrics allow for defining discrepancies between two probability measures. Wasserstein distance is for longer the celebrated OT-distance frequently-used in the literature, which seeks probability distributions to be…

机器学习 · 计算机科学 2021-10-14 Mokhtar Z. Alaya , Gilles Gasso , Maxime Berar , Alain Rakotomamonjy

Quantifying similarities between time series in a meaningful way remains a challenge in time series analysis, despite many advances in the field. Most real-world solutions still rely on a few popular measures, such as Euclidean Distance…

机器学习 · 计算机科学 2024-11-18 Mahsa Khazaei , Azim Ahmadzadeh , Krishna Rukmini Puthucode

Comparing metric measure spaces (i.e. a metric space endowed with aprobability distribution) is at the heart of many machine learning problems. The most popular distance between such metric measure spaces is theGromov-Wasserstein (GW)…

最优化与控制 · 数学 2023-01-18 Thibault Séjourné , François-Xavier Vialard , Gabriel Peyré

Edit distance, also known as Levenshtein distance, is an essential way to compare two strings that proved to be particularly useful in the analysis of genetic sequences and natural language processing. However, edit distance is a discrete…

机器学习 · 计算机科学 2019-04-30 Evgenii Ofitserov , Vasily Tsvetkov , Vadim Nazarov

Cross-domain alignment between two sets of entities (e.g., objects in an image, words in a sentence) is fundamental to both computer vision and natural language processing. Existing methods mainly focus on designing advanced attention…

计算与语言 · 计算机科学 2020-07-28 Liqun Chen , Zhe Gan , Yu Cheng , Linjie Li , Lawrence Carin , Jingjing Liu

In any setting in which observable properties have a quantitative flavour, it is natural to compare computational objects by way of \emph{metrics} rather than equivalences or partial orders. This holds, in particular, for probabilistic…

计算机科学中的逻辑 · 计算机科学 2017-01-20 Raphaëlle Crubillé , Ugo Dal Lago

We develop a family of techniques to align word embeddings which are derived from different source datasets or created using different mechanisms (e.g., GloVe or word2vec). Our methods are simple and have a closed form to optimally rotate,…

计算与语言 · 计算机科学 2020-11-19 Sunipa Dev , Safia Hassan , Jeff M. Phillips

The normalized information distance is a universal distance measure for objects of all kinds. It is based on Kolmogorov complexity and thus uncomputable, but there are ways to utilize it. First, compression algorithms can be used to…

信息检索 · 计算机科学 2008-09-16 Paul M. B. Vitanyi , Frank J. Balbach , Rudi L. Cilibrasi , Ming Li

Today, with the emergence of semantic web technologies and increasing of information quantity, searching for information based on the semantic web has become a fertile area of research. For this reason, a large number of studies are…

计算机视觉与模式识别 · 计算机科学 2021-10-05 Noreddine Gherabi , Abdelhadi Daoui , Abderrahim Marzouk

Localizing pre-visited places during long-term simultaneous localization and mapping, i.e. loop closure detection (LCD), is a crucial technique to correct accumulated inconsistencies. As one of the most effective and efficient solutions,…

计算机视觉与模式识别 · 计算机科学 2021-08-02 Haosong Yue , Jinyu Miao , Weihai Chen , Wei Wang , Fanghong Guo , Zhengguo Li

Bias evaluation is fundamental to trustworthy AI, both in terms of checking data quality and in terms of checking the outputs of AI systems. In testing data quality, for example, one may study the distance of a given dataset, viewed as a…

机器学习 · 计算机科学 2025-06-12 Jiří Němeček , Mark Kozdoba , Illia Kryvoviaz , Tomáš Pevný , Jakub Mareček

Word alignment over parallel corpora has a wide variety of applications, including learning translation lexicons, cross-lingual transfer of language processing tools, and automatic evaluation or analysis of translation outputs. The great…

计算与语言 · 计算机科学 2021-08-13 Zi-Yi Dou , Graham Neubig

The smooth 1-Wasserstein distance (SWD) $W_1^\sigma$ was recently proposed as a means to mitigate the curse of dimensionality in empirical approximation while preserving the Wasserstein structure. Indeed, SWD exhibits parametric convergence…

统计理论 · 数学 2022-02-28 Ritwik Sadhu , Ziv Goldfeld , Kengo Kato

It is critical and meaningful to make image classification since it can help human in image retrieval and recognition, object detection, etc. In this paper, three-sides efforts are made to accomplish the task. First, visual features with…

计算机视觉与模式识别 · 计算机科学 2016-10-24 Dewei Li , Yingjie Tian

The Gromov-Wasserstein (GW) distance is frequently used in machine learning to compare distributions across distinct metric spaces. Despite its utility, it remains computationally intensive, especially for large-scale problems. Recently, a…

机器学习 · 统计学 2024-10-01 Antoine Salmona , Julie Delon , Agnès Desolneux

Advances in vision-language models (VLMs) have enabled effective cross-modality retrieval. However, when both text and images exist in the database, similarity scores would differ in scale by modality. This phenomenon, known as the modality…

计算与语言 · 计算机科学 2025-12-01 Shuhei Yamashita , Daiki Shirafuji , Tatsuhiko Saito

This paper offers a mini review of Visual Word Sense Disambiguation (VWSD), which is a multimodal extension of traditional Word Sense Disambiguation (WSD). VWSD helps tackle lexical ambiguity in vision-language tasks. While conventional WSD…

计算与语言 · 计算机科学 2026-02-03 Shashini Nilukshi , Deshan Sumanathilaka

Deep distance metric learning (DDML), which is proposed to learn image similarity metrics in an end-to-end manner based on the convolution neural network, has achieved encouraging results in many computer vision tasks.$L2$-normalization in…

计算机视觉与模式识别 · 计算机科学 2018-03-29 Xuefei Zhe , Shifeng Chen , Hong Yan