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Graph reconstruction can efficiently detect the underlying topology of massive networks such as the Internet. Given a query oracle and a set of nodes, the goal is to obtain the edge set by performing as few queries as possible. An algorithm…

数据结构与算法 · 计算机科学 2024-07-29 Clara Stegehuis , Lotte Weedage

Time series data of celestial objects are commonly used to study valuable and unexpected objects such as extrasolar planets and supernova in time domain astronomy. Due to the rapid growth of data volume, traditional manual methods are…

天体物理仪器与方法 · 物理学 2020-06-18 Ce Yu , Kun Li , Shanjiang Tang , Chao Sun , Bin Ma , Qing Zhao

Learning causal relations from observational data is challenging because the graph search space grows super-exponentially with the number of variables. Ordering-based methods reduce this space by first identifying the topological ordering,…

机器学习 · 计算机科学 2026-05-19 Rafat Ashraf Joy , Elena Zheleva

Unconditional scene inference and generation are challenging to learn jointly with a single compositional model. Despite encouraging progress on models that extract object-centric representations (''slots'') from images, unconditional…

计算机视觉与模式识别 · 计算机科学 2023-11-29 Patrick Emami , Pan He , Sanjay Ranka , Anand Rangarajan

Clustering, a fundamental task in data science and machine learning, groups a set of objects in such a way that objects in the same cluster are closer to each other than to those in other clusters. In this paper, we consider a well-known…

计算几何 · 计算机科学 2018-11-07 Georgia Avarikioti , Alain Ryser , Yuyi Wang , Roger Wattenhofer

Modern analytical workloads increasingly combine relational data with array-valued attributes. While columnar database systems efficiently process such workloads, their ability to optimize queries that interleave relational operators with…

数据库 · 计算机科学 2026-04-03 Maroua Zeblah , Etienne Couritas , Sarah Chlyah , Pierre Genevès , Nils Gesbert , Nabil Layaïda

Reconstructing transcriptional regulatory networks is an important task in functional genomics. Data obtained from experiments that perturb genes by knockouts or RNA interference contain useful information for addressing this reconstruction…

机器学习 · 统计学 2015-06-18 Ali Shojaie , Alexandra Jauhiainen , Michael Kallitsis , George Michailidis

Causal graph recovery is traditionally done using statistical estimation-based methods or based on individual's knowledge about variables of interests. They often suffer from data collection biases and limitations of individuals' knowledge.…

计算与语言 · 计算机科学 2024-06-19 Yuzhe Zhang , Yipeng Zhang , Yidong Gan , Lina Yao , Chen Wang

In this paper, we present a hypergraph neural networks (HGNN) framework for data representation learning, which can encode high-order data correlation in a hypergraph structure. Confronting the challenges of learning representation for…

机器学习 · 计算机科学 2019-02-26 Yifan Feng , Haoxuan You , Zizhao Zhang , Rongrong Ji , Yue Gao

In a random linear graph, vertices are points on a line, and pairs of vertices are connected, independently, with a link probability that decreases with distance. We study the problem of reconstructing the linear embedding from the graph,…

组合数学 · 数学 2020-05-25 Israel Rocha , Jeannette Janssen , Nauzer Kalyaniwalla

Geometric verification is considered a de facto solution for the re-ranking task in image retrieval. In this study, we propose a novel image retrieval re-ranking network named Correlation Verification Networks (CVNet). Our proposed network,…

计算机视觉与模式识别 · 计算机科学 2022-04-05 Seongwon Lee , Hongje Seong , Suhyeon Lee , Euntai Kim

A novel correction algorithm is proposed for multi-class classification problems with corrupted training data. The algorithm is non-intrusive, in the sense that it post-processes a trained classification model by adding a correction…

机器学习 · 计算机科学 2020-02-13 Jun Hou , Tong Qin , Kailiang Wu , Dongbin Xiu

First-order automatic differentiation is a ubiquitous tool across statistics, machine learning, and computer science. Higher-order implementations of automatic differentiation, however, have yet to realize the same utility. In this paper I…

统计计算 · 统计学 2019-01-01 Michael Betancourt

The girth of a matrix is the least number of linearly dependent columns, in contrast to the rank which is the largest number of linearly independent columns. This paper considers the construction of {\it high-girth} matrices, whose…

信息论 · 计算机科学 2015-02-06 Emmanuel Abbe , Yuval Wigderson

Deep neural networks have emerged as very successful tools for image restoration and reconstruction tasks. These networks are often trained end-to-end to directly reconstruct an image from a noisy or corrupted measurement of that image. To…

图像与视频处理 · 电气工程与系统科学 2021-06-30 Zalan Fabian , Reinhard Heckel , Mahdi Soltanolkotabi

The generation of synthetic data is an essential tool to study complex systems, allowing for example to test models of these in precisely controlled settings, or to parametrize simulation models when data is missing. This paper focuses on…

应用统计 · 统计学 2019-11-25 Juste Raimbault

Spurred by tremendous success in pattern matching and prediction tasks, researchers increasingly resort to machine learning to aid original scientific discovery. Given large amounts of observational data about a system, can we uncover the…

机器学习 · 计算机科学 2025-01-31 Hananeh Aliee , Fabian J. Theis , Niki Kilbertus

We consider the problem of comparing the similarity of image sets with variable-quantity, quality and un-ordered heterogeneous images. We use feature restructuring to exploit the correlations of both inner$\&$inter-set images. Specifically,…

计算机视觉与模式识别 · 计算机科学 2019-08-06 Xiaofeng Liu , Zhenhua Guo , Site Li , Lingsheng Kong , Ping Jia , Jane You , B. V. K. Kumar

The reconstruction of images from their corresponding noisy Radon transform is a typical example of an ill-posed linear inverse problem as arising in the application of computerized tomography (CT). As the (naive) solution does not depend…

Dense matching methods like DUSt3R regress pairwise pointmaps for 3D reconstruction. However, the reliance on pairwise prediction and the limited generalization capability inherently restrict the global geometric consistency. In this work,…

计算机视觉与模式识别 · 计算机科学 2025-06-17 Yuheng Yuan , Qiuhong Shen , Shizun Wang , Xingyi Yang , Xinchao Wang