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Data subset selection aims to find a smaller yet informative subset of a large dataset that can approximate the full-dataset training, addressing challenges associated with training neural networks on large-scale datasets. However, existing…

机器学习 · 计算机科学 2024-06-06 Hoyong Choi , Nohyun Ki , Hye Won Chung

We describe an algorithm to find maximal exact matches (MEMs) among HiFi reads with homopolymer errors. The main novelty in our work is that we resort to run-length compression to help deal with errors. Our method receives as input a…

数据结构与算法 · 计算机科学 2022-09-01 Diego Díaz-Domínguez , Simon J. Puglisi , Leena Salmela

Until recently, most experts would probably have agreed we cannot backwards-step in constant time with a run-length compressed Burrows-Wheeler Transform (RLBWT), since doing so relies on rank queries on sparse bitvectors and those inherit…

数据结构与算法 · 计算机科学 2022-07-15 Nathaniel K. Brown , Travis Gagie , Massimiliano Rossi

The Gradient Boosted Tree (GBT) algorithm is one of the most popular machine learning algorithms used in production, for tasks that include Click-Through Rate (CTR) prediction and learning-to-rank. To deal with the massive datasets…

机器学习 · 计算机科学 2019-05-30 Theodore Vasiloudis , Hyunsu Cho , Henrik Boström

In this paper, we propose a new metric for Machine Translation (MT) evaluation, based on bi-directional entailment. We show that machine generated translation can be evaluated by determining paraphrasing with a reference translation…

计算与语言 · 计算机科学 2019-11-05 Rakesh Khobragade , Heaven Patel , Anand Namdev , Anish Mishra , Pushpak Bhattacharyya

Distributed language representation has become the most widely used technique for language representation in various natural language processing tasks. Most of the natural language processing models that are based on deep learning…

计算与语言 · 计算机科学 2020-05-11 Martina Toshevska , Frosina Stojanovska , Jovan Kalajdjieski

This paper studies fundamental aspects of modelling data using multivariate Watson distributions. Although these distributions are natural for modelling axially symmetric data (i.e., unit vectors where $\pm \x$ are equivalent), for…

统计计算 · 统计学 2012-05-28 Suvrit Sra , Dmitrii Karp

This paper develops an algorithmic approach for obtaining approximate, numerical estimates of the sizes of subcodes of Reed-Muller (RM) codes, all of the codewords in which satisfy a given constraint. Our algorithm is based on a statistical…

信息论 · 计算机科学 2023-09-20 V. Arvind Rameshwar , Shreyas Jain , Navin Kashyap

We present a new integral transform called the Generalized Borel Transform (GBT) and show how to use it to compute some distribution functions used to describe the statistico-mechanical behavior of macromolecules. For this purpose, we…

统计力学 · 物理学 2015-06-24 M. Marucho , G. A. Carri

Multivariate time series naturally exist in many fields, like energy, bioinformatics, signal processing, and finance. Most of these applications need to be able to compare these structured data. In this context, dynamic time warping (DTW)…

机器学习 · 计算机科学 2016-10-18 Maria-Irina Nicolae , Éric Gaussier , Amaury Habrard , Marc Sebban

Computing string or sequence alignments is a classical method of comparing strings and has applications in many areas of computing, such as signal processing and bioinformatics. Semi-local string alignment is a recent generalisation of this…

数据结构与算法 · 计算机科学 2009-03-23 Peter Krusche , Alexander Tiskin

Recently, researchers have shown an increased interest in harnessing Twitter data for dynamic monitoring of traffic conditions. Bag-of-words representation is a common method in literature for tweet modeling and retrieving traffic…

信息检索 · 计算机科学 2018-12-05 Sina Dabiri , Kevin Heaslip

Weighted labelled transition systems (WLTSs) are an established meta-model aiming to provide general results and tools for a wide range of systems such as non-deterministic, stochastic, and probabilistic systems. In order to encompass…

计算机科学中的逻辑 · 计算机科学 2017-04-25 Marino Miculan , Marco Peressotti

The Continuous Wavelet Transform (CWT) is an effective tool for feature extraction in acoustic recognition using Convolutional Neural Networks (CNNs), particularly when applied to non-stationary audio. However, its high computational cost…

音频与语音处理 · 电气工程与系统科学 2025-12-01 Dang Thoai Phan , Tuan Anh Huynh , Van Tuan Pham , Cao Minh Tran , Van Thuan Mai , Ngoc Quy Tran

String kernels are typically used to compare genome-scale sequences whose length makes alignment impractical, yet their computation is based on data structures that are either space-inefficient, or incur large slowdowns. We show that a…

数据结构与算法 · 计算机科学 2015-02-24 Djamal Belazzougui , Fabio Cunial

The continuous wavelet transform (CWT) is very useful for processing signals with intricate and irregular structures in astrophysics and cosmology. It is crucial to propose precise and fast algorithms for the CWT. In this work, we review…

天体物理仪器与方法 · 物理学 2024-08-28 Yun Wang , Ping He

Dictionary learning is an effective tool for pattern recognition and classification of time series data. Among various dictionary learning techniques, the dynamic time warping (DTW) is commonly used for dealing with temporal delays,…

机器学习 · 统计学 2023-07-03 Ruiyu Xu , Chao Wang , Yongxiang Li , Jianguo Wu

To extract essential information from complex data, computer scientists have been developing machine learning models that learn low-dimensional representation mode. From such advances in machine learning research, not only computer…

人工智能 · 计算机科学 2024-06-18 Akira Matsui , Emilio Ferrara

Blind estimation of intersymbol interference channels based on the Baum-Welch (BW) algorithm, a specific implementation of the expectation-maximization (EM) algorithm for training hidden Markov models, is robust and does not require labeled…

信号处理 · 电气工程与系统科学 2025-04-15 Chin-Hung Chen , Boris Karanov , Ivana Nikoloska , Wim van Houtum , Yan Wu , Alex Alvarado

The rapid development of such natural language processing tasks as style transfer, paraphrase, and machine translation often calls for the use of semantic similarity metrics. In recent years a lot of methods to measure the semantic…

计算与语言 · 计算机科学 2022-11-15 Ivan P. Yamshchikov , Viacheslav Shibaev , Nikolay Khlebnikov , Alexey Tikhonov