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The facility location problem is widely used for summarizing large datasets and has additional applications in sensor placement, image retrieval, and clustering. One difficulty of this problem is that submodular optimization algorithms…

机器学习 · 统计学 2017-03-09 Erik M. Lindgren , Shanshan Wu , Alexandros G. Dimakis

To overcome the barrier of storage and computation, the hashing technique has been widely used for nearest neighbor search in multimedia retrieval applications recently. Particularly, cross-modal retrieval that searches across different…

信息检索 · 计算机科学 2019-05-16 Sarawut Markchit , Chih-Yi Chiu

Masked image modeling (MIM) has attracted much research attention due to its promising potential for learning scalable visual representations. In typical approaches, models usually focus on predicting specific contents of masked patches,…

计算机视觉与模式识别 · 计算机科学 2023-04-13 Haochen Wang , Kaiyou Song , Junsong Fan , Yuxi Wang , Jin Xie , Zhaoxiang Zhang

We present the first provable Least-Squares Value Iteration (LSVI) algorithms that have runtime complexity sublinear in the number of actions. We formulate the value function estimation procedure in value iteration as an approximate maximum…

数据结构与算法 · 计算机科学 2021-06-09 Anshumali Shrivastava , Zhao Song , Zhaozhuo Xu

Indexing time series by creating compact binary representations is a fundamental task in time series data mining. Recently, deep learning-based hashing methods have proven effective for indexing time series based on semantic meaning rather…

机器学习 · 计算机科学 2025-09-25 Juan Manuel Perez , Kevin Garcia , Brooklyn Berry , Dongjin Song , Yifeng Gao

Similarity joins are important operations with a broad range of applications. In this paper, we study the problem of vector similarity join size estimation (VSJ). It is a generalization of the previously studied set similarity join size…

数据库 · 计算机科学 2011-04-19 Hongrae Lee , Raymond T. Ng , Kyuseok Shim

Finding approximate occurrences of a pattern in a text using a full-text index is a central problem in bioinformatics and has been extensively researched. Bidirectional indices have opened new possibilities in this regard allowing the…

数据结构与算法 · 计算机科学 2018-03-06 Kiavash Kianfar , Christopher Pockrandt , Bahman Torkamandi , Haochen Luo , Knut Reinert

Approximate nearest neighbour (ANN) search is an essential component of search engines, recommendation systems, etc. Many recent works focus on learning-based data-distribution-dependent hashing and achieve good retrieval performance.…

信息检索 · 计算机科学 2023-04-07 Kim Yong Tan , Yueming Lyu , Yew Soon Ong , Ivor W. Tsang

Motivated by a real-world application, we model and solve a complex staff scheduling problem. Tasks are to be assigned to workers for supervision. Multiple tasks can be covered in parallel by a single worker, with worker shifts being…

离散数学 · 计算机科学 2023-02-10 Martin Gutjahr , Sophie N. Parragh , Fabien Tricoire

A critical piece of the modern information retrieval puzzle is approximate nearest neighbor search. Its objective is to return a set of $k$ data points that are closest to a query point, with its accuracy measured by the proportion of exact…

信息检索 · 计算机科学 2024-07-15 Thomas Vecchiato , Claudio Lucchese , Franco Maria Nardini , Sebastian Bruch

Hashing has been widely researched to solve the large-scale approximate nearest neighbor search problem owing to its time and storage superiority. In recent years, a number of online hashing methods have emerged, which can update the hash…

数据库 · 计算机科学 2022-12-07 Wenzhe Jia , Yuan Cao , Junwei Liu , Jie Gui

With the growth of image on the web, research on hashing which enables high-speed image retrieval has been actively studied. In recent years, various hashing methods based on deep neural networks have been proposed and achieved higher…

计算机视觉与模式识别 · 计算机科学 2019-05-23 Yosuke Kaga , Masakazu Fujio , Kenta Takahashi , Tetsushi Ohki , Masakatsu Nishigaki

Matrix factorization (MF) can extract the low-rank features and integrate the information of the data manifold distribution from high-dimensional data, which can consider the nonlinear neighbourhood information. Thus, MF has drawn wide…

分布式、并行与集群计算 · 计算机科学 2021-11-24 Zixuan Li , Hao Li , Kenli Li , Fan Wu , Lydia Chen , Keqin Li

Indexing is an effective way to support efficient query processing in large databases. Recently the concept of learned index, which replaces or complements traditional index structures with machine learning models, has been actively…

数据库 · 计算机科学 2022-08-01 Yao Tian , Tingyun Yan , Xi Zhao , Kai Huang , Xiaofang Zhou

Due to its low storage cost and fast query speed, hashing has been recognized to accomplish similarity search in large-scale multimedia retrieval applications. Particularly supervised hashing has recently received considerable research…

计算机视觉与模式识别 · 计算机科学 2019-04-17 Zheng Zhang , Guo-sen Xie , Yang Li , Sheng Li , Zi Huang

Loop Closure Detection (LCD) has been proved to be extremely useful in global consistent visual Simultaneously Localization and Mapping (SLAM) and appearance-based robot relocalization. Methods exploiting binary features in bag of words…

计算机视觉与模式识别 · 计算机科学 2017-03-01 Lei Han , Lu Fang

We propose an algorithm for generating explicit solutions of multiparametric mixed-integer convex programs to within a given suboptimality tolerance. The algorithm is applicable to a very general class of optimization problems, but is most…

最优化与控制 · 数学 2019-06-12 Danylo Malyuta , Behcet Acikmese

We give new data-dependent locality sensitive hashing schemes (LSH) for the Earth Mover's Distance ($\mathsf{EMD}$), and as a result, improve the best approximation for nearest neighbor search under $\mathsf{EMD}$ by a quadratic factor.…

数据结构与算法 · 计算机科学 2024-03-11 Rajesh Jayaram , Erik Waingarten , Tian Zhang

Existing methods for retrieving k-nearest neighbours suffer from the curse of dimensionality. We argue this is caused in part by inherent deficiencies of space partitioning, which is the underlying strategy used by most existing methods. We…

数据结构与算法 · 计算机科学 2017-04-07 Ke Li , Jitendra Malik

Efficient indexing and searching of high dimensional data has been an area of active research due to the growing exploitation of high dimensional data and the vulnerability of traditional search methods to the curse of dimensionality. This…

信息检索 · 计算机科学 2015-05-13 Yu Zhong