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Dynamic Time Warping (DTW) is used for matching pairs of sequences and celebrated in applications such as forecasting the evolution of time series, clustering time series or even matching sequence pairs in few-shot action recognition. The…

计算机视觉与模式识别 · 计算机科学 2022-11-02 Lei Wang , Piotr Koniusz

Semantic Textual Similarity (STS) is a crucial component of many Natural Language Processing (NLP) applications. However, existing approaches typically reduce semantic nuances to a single score, limiting interpretability. To address this,…

计算与语言 · 计算机科学 2026-05-15 Diego Miguel Lozano , Daryna Dementieva , Alexander Fraser

String Edit Distance is a more-than-classical problem whose behavior in the dynamic setting, where the strings are updated over time, is well studied. A single-character substitution, insertion, or deletion can be processed in time…

数据结构与算法 · 计算机科学 2025-11-18 Bingbing Hu , Jakob Nogler , Barna Saha

This work describes the theory and the implementation of a new software tool, the "Web Topical Discovery System" (WTDS), which provides an approach to the automatic discovery and selection of new web pages relevant to specific analytical…

信息检索 · 计算机科学 2015-07-09 Giancarlo Crocetti

Assessing the proper difficulty levels of reading materials or texts in general is the first step towards effective comprehension and learning. In this study, we improve the conventional methodology of automatic readability assessment by…

计算与语言 · 计算机科学 2021-09-21 Joseph Marvin Imperial , Ethel Ong

Document alignment techniques based on multilingual sentence representations have recently shown state of the art results. However, these techniques rely on unsupervised distance measurement techniques, which cannot be fined-tuned to the…

计算与语言 · 计算机科学 2021-12-01 Charith Rajitha , Lakmali Piyarathne , Dilan Sachintha , Surangika Ranathunga

Assessing the extent of human edits on texts generated by Large Language Models (LLMs) is crucial to understanding the human-AI interactions and improving the quality of automated text generation systems. Existing edit distance metrics,…

计算与语言 · 计算机科学 2024-12-24 Nicolas Devatine , Louis Abraham

The Dynamic Time Warping ("DTW") distance is widely used in time series analysis, be it for classification, clustering or similarity search. However, its quadratic time complexity prevents it from scaling. Strategies, based on early…

机器学习 · 计算机科学 2020-10-13 Matthieu Herrmann , Geoffrey I. Webb

In this paper we present a new method for text-independent speaker verification that combines segmental dynamic time warping (SDTW) and the d-vector approach. The d-vectors, generated from a feed forward deep neural network trained to…

声音 · 计算机科学 2018-06-27 Mohamed Adel , Mohamed Afify , Akram Gaballah

Metric learning has the aim to improve classification accuracy by learning a distance measure which brings data points from the same class closer together and pushes data points from different classes further apart. Recent research has…

机器学习 · 计算机科学 2018-07-17 Benjamin Paaßen , Claudio Gallicchio , Alessio Micheli , Barbara Hammer

One approach to matching texts from asymmetrical domains is projecting the input sequences into a common semantic space as feature vectors upon which the matching function can be readily defined and learned. In real-world matching…

计算与语言 · 计算机科学 2020-10-20 Weijie Yu , Chen Xu , Jun Xu , Liang Pang , Xiaopeng Gao , Xiaozhao Wang , Ji-Rong Wen

Text simplification is a valuable technique. However, current research is limited to sentence simplification. In this paper, we define and investigate a new task of document-level text simplification, which aims to simplify a document…

计算与语言 · 计算机科学 2021-10-12 Renliang Sun , Hanqi Jin , Xiaojun Wan

We consider the classical tree edit distance between ordered labeled trees, which is defined as the minimum-cost sequence of node edit operations that transform one tree into another. The state-of-the-art solutions for the tree edit…

数据库 · 计算机科学 2012-01-04 Mateusz Pawlik , Nikolaus Augsten

Trend filtering simplifies complex time series data by applying smoothness to filter out noise while emphasizing proximity to the original data. However, existing trend filtering methods fail to reflect abrupt changes in the trend due to…

机器学习 · 计算机科学 2025-03-25 Jihyeon Seong , Sekwang Oh , Jaesik Choi

In the real world, documents are organized in different formats and varied modalities. Traditional retrieval pipelines require tailored document parsing techniques and content extraction modules to prepare input for indexing. This process…

信息检索 · 计算机科学 2024-12-03 Xueguang Ma , Sheng-Chieh Lin , Minghan Li , Wenhu Chen , Jimmy Lin

This technical report details a family of time warp distances on the set of discrete time series. This family is constructed as an editing distance whose elementary operations apply on linear segments. A specific parameter allows…

信息检索 · 计算机科学 2008-06-23 Pierre-François Marteau

The advances of modern localization techniques and the wide spread of mobile devices have provided us great opportunities to collect and mine human mobility trajectories. In this work, we focus on passively collected trajectories, which are…

计算几何 · 计算机科学 2022-04-22 Jiaxin Ding , Jie Gao , Steven Skiena

Recent work has demonstrated that vector offsets obtained by subtracting pretrained word embedding vectors can be used to predict lexical relations with surprising accuracy. Inspired by this finding, in this paper, we extend the idea to the…

计算与语言 · 计算机科学 2019-07-19 Jingyuan Zhang , Timothy Baldwin

The main approach of traditional information retrieval (IR) is to examine how many words from a query appear in a document. A drawback of this approach, however, is that it may fail to detect relevant documents where no or only few words…

计算与语言 · 计算机科学 2017-10-19 Sun Kim , Nicolas Fiorini , W. John Wilbur , Zhiyong Lu

This paper contributes multivariate versions of seven commonly used elastic similarity and distance measures for time series data analytics. Elastic similarity and distance measures are a class of similarity measures that can compensate for…

机器学习 · 计算机科学 2023-01-18 Ahmed Shifaz , Charlotte Pelletier , Francois Petitjean , Geoffrey I. Webb