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Masking-based post-hoc explanation methods, such as KernelSHAP and LIME, estimate local feature importance by querying a black-box model under randomized perturbations. This paper formulates this procedure as communication over a query…

人工智能 · 计算机科学 2026-04-21 Erciyes Karakaya , Ozgur Ercetin

We introduce a new deep learning architecture for predicting price movements from limit order books. This architecture uses a causal convolutional network for feature extraction in combination with masked self-attention to update features…

计算金融 · 定量金融 2020-03-03 James Wallbridge

Similarity search is a fundamental algorithmic primitive, widely used in many computer science disciplines. There are several variants of the similarity search problem, and one of the most relevant is the $r$-near neighbor ($r$-NN) problem:…

数据结构与算法 · 计算机科学 2020-06-16 Martin Aumüller , Rasmus Pagh , Francesco Silvestri

We present a new compressed representation of free trajectories of moving objects. It combines a partial-sums-based structure that retrieves in constant time the position of the object at any instant, with a hierarchical…

数据结构与算法 · 计算机科学 2017-10-06 Nieves R. Brisaboa , Travis Gagie , Adrián Gómez-Brandón , Gonzalo Navarro , José R. Paramá

Distributional assumptions have been shown to be necessary for the robust learnability of concept classes when considering the exact-in-the-ball robust risk and access to random examples by Gourdeau et al. (2019). In this paper, we study…

机器学习 · 计算机科学 2023-07-21 Pascale Gourdeau , Varun Kanade , Marta Kwiatkowska , James Worrell

Localized patterns are coherent structures embedded in a quiescent state and occur in both discrete and continuous media across a wide range of applications. While it is well-understood how domain covering patterns (for example stripes and…

斑图形成与孤子 · 物理学 2025-03-19 Jason J. Bramburger , Dan J. Hill , David J. B. Lloyd

In this paper we aim to determine the location and orientation of a ground-level query image by matching to a reference database of overhead (e.g. satellite) images. For this task we collect a new dataset with one million pairs of street…

计算机视觉与模式识别 · 计算机科学 2017-03-24 Nam Vo , James Hays

In this work, we show deep connections between Locality Sensitive Hashability and submodular analysis. We show that the LSHablility of the most commonly analyzed set similarities is in one-to-one correspondance with the supermodularity of…

离散数学 · 计算机科学 2018-07-19 Maxim Berman , Matthew B. Blaschko

The large-scale structure of the universe can only be observed via luminous tracers of the dark matter. However, the clustering statistics of tracers are biased and depend on various properties, such as their host-halo mass and assembly…

宇宙学与河外天体物理 · 物理学 2017-08-24 Giorgia Pollina , Nico Hamaus , Klaus Dolag , Jochen Weller , Marco Baldi , Lauro Moscardini

The weighted-Hamming metric generalizes the Hamming metric by assigning different weights to blocks of coordinates. It is well-suited for applications such as coding over independent parallel channels, each of which has a different level of…

信息论 · 计算机科学 2026-01-21 Sebastian Bitzer , Alberto Ravagnani , Violetta Weger

Correlation measure of order $k$ is an important measure of randomness in binary sequences. This measure tries to look for dependence between several shifted version of a sequence. We study the relation between the correlation measure of…

信息论 · 计算机科学 2021-07-27 Zhixiong Chen , Ana I. Gómez , Domingo Gómez-Pérez , Andrew Tirkel

We consider quantile optimization of black-box functions that are estimated with noise. We propose two new iterative three-timescale local search algorithms. The first algorithm uses an appropriately modified finite-difference-based…

最优化与控制 · 数学 2023-08-16 Jiaqiao Hu , Meichen Song , Michael C. Fu

We propose a unifying framework for smoothed analysis of combinatorial local optimization problems, and show how a diverse selection of problems within the complexity class PLS can be cast within this model. This abstraction allows us to…

计算复杂性 · 计算机科学 2025-09-24 Yiannis Giannakopoulos , Alexander Grosz , Themistoklis Melissourgos

In the present paper we describe new heuristic technique, which can be applied to the optimization of pseudo-Boolean functions including Black-Box functions. This technique is based on a simple procedure which consists in transition from…

神经与进化计算 · 计算机科学 2019-08-05 Alexander A. Semenov

Object detectors are conventionally trained by a weighted sum of classification and localization losses. Recent studies (e.g., predicting IoU with an auxiliary head, Generalized Focal Loss, Rank & Sort Loss) have shown that forcing these…

计算机视觉与模式识别 · 计算机科学 2023-01-04 Fehmi Kahraman , Kemal Oksuz , Sinan Kalkan , Emre Akbas

The Lov\'{a}sz Local Lemma (LLL) is a powerful tool in probabilistic combinatorics which can be used to establish the existence of objects that satisfy certain properties. The breakthrough paper of Moser and Tardos and follow-up works…

数据结构与算法 · 计算机科学 2025-09-09 David G. Harris , Fotis Iliopoulos , Vladimir Kolmogorov

Modeling open hole failure of composites is a complex task, consisting in a highly nonlinear response with interacting failure modes. Numerical modeling of this phenomenon has traditionally been based on the finite element method, but…

计算工程、金融与科学 · 计算机科学 2025-08-19 Giorgio Tosti Balducci , Boyang Chen , Matthias Möller , Marc Gerritsma , Roeland De Breuker

Locality Sensitive Hashing (LSH) is an effective method of indexing a set of items to support efficient nearest neighbors queries in high-dimensional spaces. The basic idea of LSH is that similar items should produce hash collisions with…

数据结构与算法 · 计算机科学 2021-02-22 Haim Kaplan , Jay Tenenbaum

Local Search is one of the fundamental approaches to combinatorial optimization and it is used throughout AI. Several local search algorithms are based on searching the k-exchange neighborhood. This is the set of solutions that can be…

数据结构与算法 · 计算机科学 2012-08-20 Serge Gaspers , Eun Jung Kim , Sebastian Ordyniak , Saket Saurabh , Stefan Szeider

Sequence classification has numerous applications in various fields. Despite extensive studies in the last decades, many challenges still exist, particularly in pattern-based methods. Existing pattern-based methods measure the…

机器学习 · 计算机科学 2023-10-23 Junjie Dong , Mudi Jiang , Lianyu Hu , Zengyou He