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Unbalanced optimal transport (UOT) extends optimal transport (OT) to take into account mass variations to compare distributions. This is crucial to make OT successful in ML applications, making it robust to data normalization and outliers.…

最优化与控制 · 数学 2022-01-04 Thibault Séjourné , François-Xavier Vialard , Gabriel Peyré

Despite major advances in surgical brain-to-text (B2T), i.e. transcribing speech from invasive brain recordings, non-invasive alternatives have yet to surpass even chance on standard metrics. This remains a barrier to building a…

机器学习 · 计算机科学 2025-05-20 Dulhan Jayalath , Gilad Landau , Oiwi Parker Jones

An evolutionary form of a generalized Bayesian update method, which is strictly derivative- free yet directed through an additive update term based purely on the statistical moments of the design variables, is proposed for nonlinear inverse…

统计方法学 · 统计学 2013-12-17 M Venugopal , D Roy , R M Vasu

Objective: Transformers, born to remedy the inadequate receptive fields of CNNs, have drawn explosive attention recently. However, the daunting computational complexity of global representation learning, together with rigid window…

计算机视觉与模式识别 · 计算机科学 2023-04-20 Xian Lin , Li Yu , Kwang-Ting Cheng , Zengqiang Yan

LZ77-based compression schemes compress the input text by replacing factors in the text with an encoded reference to a previous occurrence formed by the couple (length, offset). For a given factor, the smallest is the offset, the smallest…

数据结构与算法 · 计算机科学 2012-11-22 Maxime Crochemore , Alessio Langiu , Filippo Mignosi

Continuous Bag of Words (CBOW) is a powerful text embedding method. Due to its strong capabilities to encode word content, CBOW embeddings perform well on a wide range of downstream tasks while being efficient to compute. However, CBOW is…

计算与语言 · 计算机科学 2019-02-19 Florian Mai , Lukas Galke , Ansgar Scherp

The $r$-index represented a breakthrough in compressed indexing of repetitive text collections, outperforming its alternatives by orders of magnitude in query time. Its space usage, $O(r)$ where $r$ is the number of runs in the…

数据结构与算法 · 计算机科学 2024-09-24 Dustin Cobas , Travis Gagie , Gonzalo Navarro

This paper introduces a novel indexing and access method, called Feature- Based Adaptive Tolerance Tree (FATT), using wavelet transform is proposed to organize large image data sets efficiently and to support popular image access mechanisms…

多媒体 · 计算机科学 2010-04-09 Dr. P. AnandhaKumar , V. Balamurugan

We study the sensitivity of the Lempel-Ziv 77 compression algorithm to edits, showing how modifying a string $w$ can deteriorate or improve its compression. Our first result is a tight upper bound for $k$ edits: $\forall w' \in B(w,k)$, we…

数据结构与算法 · 计算机科学 2026-02-24 Gabriel Bathie , Paul Huber , Guillaume Lagarde , Akka Zemmari

The Liquid Reasoning Transformer (LRT) is a transformer architecture designed for inference with adaptive depths using iterative changes, discard-based correction, and a learned stopping mechanism. Instead of relying on a single feedforward…

机器学习 · 计算机科学 2025-12-16 Shivansh Sahni , Wenzhi Zhang

By reducing optimization to a sequence of smaller subproblems, working set algorithms achieve fast convergence times for many machine learning problems. Despite such performance, working set implementations often resort to heuristics to…

机器学习 · 统计学 2018-07-24 Tyler B. Johnson , Carlos Guestrin

In this paper we present an algorithm to compute the Lyndon array of a string $T$ of length $n$ as a byproduct of the inversion of the Burrows-Wheeler transform of $T$. Our algorithm runs in linear time using only a stack in addition to the…

数据结构与算法 · 计算机科学 2019-03-12 Felipe A. Louza , W. F. Smyth , Giovanni Manzini , Guilherme P. Telles

Given a finite word $w$, Guibas and Odlyzko (J. Combin. Theory Ser. A, 30, 1981, 183-208) showed that the autocorrelation polynomial $\phi_w(t)$ of $w$, which records the set of self-overlaps of $w$, explicitly determines for each $n$, the…

动力系统 · 数学 2025-11-04 Nishant Chandgotia , Brian Marcus , Jacob Richey , Chengyu Wu

In this paper, we have studied continuous fractional wavelet transform (CFrWT) in $n$-dimensional Euclidean space $\mathbb{R}^n$ with dilation parameter $\boldsymbol a=(a_{1},a_{2},\ldots,a_{n}),$ such that none of $a_{i}'s$ are zero.…

泛函分析 · 数学 2019-12-20 Amit K. Verma , Bivek Gupta

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

Offline handwriting recognition (HWR) has improved significantly with the advent of deep learning architectures in recent years. Nevertheless, it remains a challenging problem and practical applications often rely on post-processing…

计算机视觉与模式识别 · 计算机科学 2023-09-20 Andrey Totev , Tomas Ward

We study bond percolation on a one-parameter family of hierarchical small-world network, and find a meta-transition between the inverted BKT transition and the abrupt transition driven by changing the network topology. It is found that the…

统计力学 · 物理学 2014-04-17 Tomoaki Nogawa , Takehisa Hasegawa

The cost of deploying vision transformers increasingly represents a barrier to wider industrial adoption. Existing compression techniques require additional end-to-end fine-tuning or incur a significant drawback to energy efficiency, making…

计算机视觉与模式识别 · 计算机科学 2025-12-01 Leonidas Gee , Wing Yan Li , Viktoriia Sharmanska , Novi Quadrianto

In this paper, we propose a novel approach to combine \emph{compact directed acyclic word graphs} (CDAWGs) and grammar-based compression. This leads us to an efficient self-index, called Linear-size CDAWGs (L-CDAWGs), which can be…

数据结构与算法 · 计算机科学 2017-07-28 Takuya Takagi , Keisuke Goto , Yuta Fujishige , Shunsuke Inenaga , Hiroki Arimura

This work presents a discovery to advance the wisdom in a particular Succinct Data Structure: Wavelet Tree (Grossi, Gupta, and Vitter 2003). The discovery is first made by showing the feasibility of Reversed Indexes = Values: for integers…

信息论 · 计算机科学 2024-02-27 Xiangjun Peng