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Dynamic Time Warping (DTW) is a widely used similarity measure for comparing strings that encode time series data, with applications to areas including bioinformatics, signature verification, and speech recognition. The standard…

数据结构与算法 · 计算机科学 2022-07-05 Zoe Xi , William Kuszmaul

Large Language Models (LLMs) with Mixture-of-Expert (MoE) architectures achieve superior model performance with reduced computation costs, but at the cost of high memory capacity and bandwidth requirements. Near-Memory Processing (NMP)…

With their high energy efficiency, processing-in-memory (PIM) arrays are increasingly used for convolutional neural network (CNN) inference. In PIM-based CNN inference, the computational latency and energy are dependent on how the CNN…

机器学习 · 计算机科学 2021-12-22 Johnny Rhe , Sungmin Moon , Jong Hwan Ko

Sinkhorn divergence is a measure of dissimilarity between two probability measures. It is obtained through adding an entropic regularization term to Kantorovich's optimal transport problem and can hence be viewed as an entropically…

数值分析 · 数学 2020-05-01 Mohammad Motamed

Recently, finetuning a pretrained language model to capture the similarity between sentence embeddings has shown the state-of-the-art performance on the semantic textual similarity (STS) task. However, the absence of an interpretation…

人工智能 · 计算机科学 2022-04-15 Seonghyeon Lee , Dongha Lee , Seongbo Jang , Hwanjo Yu

Detecting temporal semantic changes of words is an important task for various NLP applications that must make time-sensitive predictions. Lexical Semantic Change Detection (SCD) task involves predicting whether a given target word, $w$,…

计算与语言 · 计算机科学 2024-06-04 Taichi Aida , Danushka Bollegala

How similar are two images? In computational pathology, where Whole Slide Images (WSIs) of digitally scanned tissue samples from patients can be multi-gigapixels in size, determination of degree of similarity between two WSIs is a…

图像与视频处理 · 电气工程与系统科学 2023-01-24 Piotr Keller , Muhammad Dawood , Fayyaz ul Amir Afsar Minhas

Online change point detection in dynamic graphs requires comparing graphs as they arrive, in time linear in the number of edges, without parametric assumptions. Recent spectral methods address scale via the Kernel Polynomial Method (KPM):…

计算几何 · 计算机科学 2026-05-29 Izhar Ali

Imitation learning algorithms have been interpreted as variants of divergence minimization problems. The ability to compare occupancy measures between experts and learners is crucial in their effectiveness in learning from demonstrations.…

机器学习 · 计算机科学 2022-07-05 Georgios Papagiannis , Yunpeng Li

We engineer an algorithm to solve the approximate dictionary matching problem. Given a list of words $\mathcal{W}$, maximum distance $d$ fixed at preprocessing time and a query word $q$, we would like to retrieve all words from…

信息检索 · 计算机科学 2010-08-19 Daniel Karch , Dennis Luxen , Peter Sanders

Audio alignment is a fundamental preprocessing step in many MIR pipelines. For two audio clips with M and N frames, respectively, the most popular approach, dynamic time warping (DTW), has O(MN) requirements in both memory and computation,…

声音 · 计算机科学 2020-08-07 Christopher Tralie , Elizabeth Dempsey

Efficient Multimodal Large Language Models (MLLMs) compress vision tokens to reduce resource consumption, but the loss of visual information can degrade comprehension capabilities. Although some priors introduce Knowledge Distillation to…

计算机视觉与模式识别 · 计算机科学 2025-11-27 Ze Feng , Sen Yang , Boqiang Duan , Wankou Yang , Jingdong Wang

Word2Vec is a widely used algorithm for extracting low-dimensional vector representations of words. It generated considerable excitement in the machine learning and natural language processing (NLP) communities recently due to its…

分布式、并行与集群计算 · 计算机科学 2016-08-09 Shihao Ji , Nadathur Satish , Sheng Li , Pradeep Dubey

A measure of similarity between text embeddings can be considered adequate only if it adheres to the human perception of similarity between texts. In this paper, we introduce the distance-to-distance ratio (DDR), a novel measure of…

计算与语言 · 计算机科学 2026-01-27 Abdullah Qureshi , Kenneth Rice , Alexander Wolpert

The Earth Mover's Distance (EMD) computes the optimal cost of transforming one distribution into another, given a known transport metric between them. In deep learning, the EMD loss allows us to embed information during training about the…

计算机视觉与模式识别 · 计算机科学 2016-11-24 Manuel Martinez , Monica Haurilet , Ziad Al-Halah , Makarand Tapaswi , Rainer Stiefelhagen

There is rising interest in vector-space word embeddings and their use in NLP, especially given recent methods for their fast estimation at very large scale. Nearly all this work, however, assumes a single vector per word type ignoring…

计算与语言 · 计算机科学 2015-04-28 Arvind Neelakantan , Jeevan Shankar , Alexandre Passos , Andrew McCallum

Detecting changes is of fundamental importance when analyzing data streams and has many applications, e.g., in predictive maintenance, fraud detection, or medicine. A principled approach to detect changes is to compare the distributions of…

机器学习 · 计算机科学 2025-02-13 Florian Kalinke , Marco Heyden , Georg Gntuni , Edouard Fouché , Klemens Böhm

An efficient iterative Earth Mover's Distance (iEMD) algorithm for visual tracking is proposed in this paper. The Earth Mover's Distance (EMD) is used as the similarity measure to search for the optimal template candidates in…

图像与视频处理 · 电气工程与系统科学 2018-04-10 Gang Yao , Ashwin Dani

There is a great deal of work in cognitive psychology, linguistics, and computer science, about using word (or phrase) frequencies in context in text corpora to develop measures for word similarity or word association, going back to at…

计算与语言 · 计算机科学 2009-05-26 Rudi L. Cilibrasi , Paul M. B. Vitanyi

Optimal Transport is a popular distance metric for measuring similarity between distributions. Exact algorithms for computing Optimal Transport can be slow, which has motivated the development of approximate numerical solvers (e.g. Sinkhorn…

机器学习 · 计算机科学 2022-03-09 Nathaniel Lahn , Sharath Raghvendra , Kaiyi Zhang