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相关论文: Improved Cardinality Estimation by Learning Querie…

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Graph pattern cardinality estimation is the problem of estimating the number of embeddings of a query graph in a data graph. This fundamental problem arises, for example, during query planning in subgraph matching algorithms. There are two…

数据库 · 计算机科学 2021-03-29 Kyoungmin Kim , Hyeonji Kim , George Fletcher , Wook-Shin Han

This paper addresses the task of set prediction using deep learning. This is important because the output of many computer vision tasks, including image tagging and object detection, are naturally expressed as sets of entities rather than…

计算机视觉与模式识别 · 计算机科学 2017-08-14 S. Hamid Rezatofighi , Vijay Kumar B G , Anton Milan , Ehsan Abbasnejad , Anthony Dick , Ian Reid

Rank fusion is a powerful technique that allows multiple sources of information to be combined into a single result set. However, to date fusion has not been regarded as being cost-effective in cases where strict per-query efficiency…

信息检索 · 计算机科学 2020-11-11 Rodger Benham , Joel Mackenzie , Alistair Moffat , J. Shane Culpepper

Subgraph counting is a fundamental problem in understanding and analyzing graph structured data, yet computationally challenging. This calls for an accurate and efficient algorithm for Subgraph Cardinality Estimation, which is to estimate…

数据库 · 计算机科学 2024-04-16 Wonseok Shin , Siwoo Song , Kunsoo Park , Wook-Shin Han

Solving the classification problem, unbalanced number of dataset among the classes often causes performance degradation. Especially when some classes dominate the other classes with its large number of datasets, trained model shows low…

计算机视觉与模式识别 · 计算机科学 2018-07-10 Dohyeun Kim , Tae Joon Jun , Daeyoung Kim , Youngsub Eom

Query containment and query answering are two important computational tasks in databases. While query answering amounts to compute the result of a query over a database, query containment is the problem of checking whether for every…

数据库 · 计算机科学 2007-05-23 Diego Calvanese , Giuseppe De Giacomo , Maurizio Lenzerini

Due to its capability to identify erroneous disparity assignments in dense stereo matching, confidence estimation is beneficial for a wide range of applications, e.g. autonomous driving, which needs a high degree of confidence as mandatory…

计算机视觉与模式识别 · 计算机科学 2019-11-06 Max Mehltretter , Christian Heipke

Nowadays, neural networks play an important role in the task of relation classification. By designing different neural architectures, researchers have improved the performance to a large extent in comparison with traditional methods.…

计算与语言 · 计算机科学 2016-10-14 Yan Xu , Ran Jia , Lili Mou , Ge Li , Yunchuan Chen , Yangyang Lu , Zhi Jin

High-dimensional data has become ubiquitous across the sciences but presents computational and statistical challenges. A common approach to addressing these challenges is through sparsity. In this paper, we introduce a new concept of…

统计理论 · 数学 2025-09-03 Ali Mohades , Johannes Lederer

We demonstrate the ability of convolutional neural networks (CNNs) to mitigate systematics in the virial scaling relation and produce dynamical mass estimates of galaxy clusters with remarkably low bias and scatter. We present two models,…

宇宙学与河外天体物理 · 物理学 2020-12-23 Matthew Ho , Markus Michael Rau , Michelle Ntampaka , Arya Farahi , Hy Trac , Barnabas Poczos

Up-and-Down (U&D) is a popular sequential design for estimating threshold percentiles in binary experiments. However, U&D application practices have stagnated, and significant gaps in understanding its properties persist. The first part of…

统计方法学 · 统计学 2008-08-25 Assaf P. Oron

Cardinality estimation is a fundamental problem in database systems. To capture the rich joint data distributions of a relational table, most of the existing work either uses data as unsupervised information or uses query workload as…

数据库 · 计算机科学 2021-07-28 Peizhi Wu , Gao Cong

A database D may be inconsistent wrt a given set IC of integrity constraints. Consistent Query Answering (CQA) is the problem of computing from D the answers to a query that are consistent wrt IC . Consistent answers are invariant under all…

数据库 · 计算机科学 2016-05-24 Andrei Lopatenko , Leopoldo Bertossi

Information extraction (IE) from text has largely focused on relations between individual entities, such as who has won which award. However, some facts are never fully mentioned, and no IE method has perfect recall. Thus, it is beneficial…

计算与语言 · 计算机科学 2017-05-30 Paramita Mirza , Simon Razniewski , Fariz Darari , Gerhard Weikum

Graph combinatorial optimization problems are widely applicable and notoriously difficult to compute; for example, consider the traveling salesman or facility location problems. In this paper, we explore the feasibility of using…

机器学习 · 计算机科学 2024-07-22 Randy Davila

We propose DeepChannel, a robust, data-efficient, and interpretable neural model for extractive document summarization. Given any document-summary pair, we estimate a salience score, which is modeled using an attention-based deep neural…

计算与语言 · 计算机科学 2018-11-08 Jiaxin Shi , Chen Liang , Lei Hou , Juanzi Li , Zhiyuan Liu , Hanwang Zhang

Deep clustering algorithms combine representation learning and clustering by jointly optimizing a clustering loss and a non-clustering loss. In such methods, a deep neural network is used for representation learning together with a…

机器学习 · 计算机科学 2020-06-09 Abien Fred Agarap , Arnulfo P. Azcarraga

Classification is a well-studied machine learning task which concerns the assignment of instances to a set of outcomes. Classification models support the optimization of managerial decision-making across a variety of operational business…

机器学习 · 计算机科学 2025-05-19 Wouter Verbeke , Diego Olaya , Jeroen Berrevoets , Sam Verboven , Sebastián Maldonado

While Deep Learning (DL) technologies are a promising tool to solve networking problems that map to classification tasks, their computational complexity is still too high with respect to real-time traffic measurements requirements. To…

网络与互联网体系结构 · 计算机科学 2022-10-04 Alessandro Finamore , James Roberts , Massimo Gallo , Dario Rossi

We study the hardness of Approximate Query Processing (AQP) of various types of queries involving joins over multiple tables of possibly different sizes. In the case where the query result is a single value (e.g., COUNT, SUM, and…

数据库 · 计算机科学 2020-10-02 Tianyu Liu , Chi Wang