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In nearest-neighbor classification problems, a set of $d$-dimensional training points are given, each with a known classification, and are used to infer unknown classifications of other points by using the same classification as the nearest…

Data Structures and Algorithms · Computer Science 2021-10-13 David Eppstein

The circumcentered-reflection method (CRM) has been applied for solving convex feasibility problems. CRM iterates by computing a circumcenter upon a composition of reflections with respect to convex sets. Since reflections are based on…

Optimization and Control · Mathematics 2022-01-05 Guilherme Araújo , Reza Arefidamghani , Roger Behling , Yunier Bello-Cruz , Alfredo Iusem , Luiz-Rafael Santos

The recommendation system, relying on historical observational data to model the complex relationships among the users and items, has achieved great success in real-world applications. Selection bias is one of the most important issues of…

Machine Learning · Computer Science 2022-01-14 Ruichu Cai , Fengzhu Wu , Zijian Li , Jie Qiao , Wei Chen , Yuexing Hao , Hao Gu

With the rapid growing of remotely sensed imagery data, there is a high demand for effective and efficient image retrieval tools to manage and exploit such data. In this letter, we present a novel content-based remote sensing image…

Computer Vision and Pattern Recognition · Computer Science 2019-10-25 Rui Cao , Qian Zhang , Jiasong Zhu , Qing Li , Qingquan Li , Bozhi Liu , Guoping Qiu

The graph burning problem is an NP-hard combinatorial optimization problem that helps quantify the vulnerability of a graph to contagion. This paper introduces a simple farthest-first traversal-based approximation algorithm for this problem…

We present a new algorithm for the approximate near neighbor problem that combines classical ideas from group testing with locality-sensitive hashing (LSH). We reduce the near neighbor search problem to a group testing problem by…

Data Structures and Algorithms · Computer Science 2021-06-23 Joshua Engels , Benjamin Coleman , Anshumali Shrivastava

We introduce ThermoStereoRT, a real-time thermal stereo matching method designed for all-weather conditions that recovers disparity from two rectified thermal stereo images, envisioning applications such as night-time drone surveillance or…

Computer Vision and Pattern Recognition · Computer Science 2025-04-11 Anning Hu , Ang Li , Xirui Jin , Danping Zou

Discovering clusters from a dataset with different shapes, densities, and scales is a known challenging problem in data clustering. In this paper, we propose the RElative COre MErge (RECOME) clustering algorithm. The core of RECOME is a…

Databases · Computer Science 2020-09-18 Yangli-ao Geng , Qingyong Li , Rong Zheng , Fuzhen Zhuang , Ruisi He , Naixue Xiong

The Nearest Neighbor Search (NNS) problem asks to design a data structure that preprocesses an $n$-point dataset $X$ lying in a metric space $\mathcal{M}$, so that given a query point $q \in \mathcal{M}$, one can quickly return a point of…

Data Structures and Algorithms · Computer Science 2026-03-24 Robert Krauthgamer , Nir Petruschka

As an in situ combustion diagnostic tool, Tunable Diode Laser Absorption Spectroscopy (TDLAS) tomography has been widely used for imaging of two-dimensional temperature distributions in reactive flows. Compared with the computational…

Image and Video Processing · Electrical Eng. & Systems 2021-06-08 Jingjing Si , Guoliang Li , Yinbo Cheng , Rui Zhang , Godwin Enemali , Chang Liu

Climate Change is an incredibly complicated problem that humanity faces. When many variables interact with each other, it can be difficult for humans to grasp the causes and effects of the very large-scale problem of climate change. The…

Machine Learning · Computer Science 2022-12-01 Theodore Wolf

The primary example of instance-based learning is the $k$-nearest neighbor rule (kNN), praised for its simplicity and the capacity to adapt to new unseen data and toss away old data. The main disadvantages often mentioned are the…

Machine Learning · Computer Science 2021-02-05 Ariana Talamantes , Edgar Chavez

Fast and reliable K-Nearest Neighbor Graph algorithms are more important than ever due to their widespread use in many data processing techniques. This paper presents a runtime optimized C implementation of the heuristic "NN-Descent"…

Machine Learning · Computer Science 2021-12-14 Dan Kluser , Jonas Bokstaller , Samuel Rutz , Tobias Buner

The artificial neural network shows powerful ability of inference, but it is still criticized for lack of interpretability and prerequisite needs of big dataset. This paper proposes the Rule-embedded Neural Network (ReNN) to overcome the…

Machine Learning · Computer Science 2018-09-03 Hu Wang

Inverse reinforcement learning (IRL) offers a powerful and general framework for learning humans' latent preferences in route recommendation, yet no approach has successfully addressed planetary-scale problems with hundreds of millions of…

Machine Learning · Computer Science 2024-03-07 Matt Barnes , Matthew Abueg , Oliver F. Lange , Matt Deeds , Jason Trader , Denali Molitor , Markus Wulfmeier , Shawn O'Banion

We are interested in the problem of finding $k$ nearest neighbours in the plane and in the presence of polygonal obstacles ($\textit{OkNN}$). Widely used algorithms for OkNN are based on incremental visibility graphs, which means they…

Artificial Intelligence · Computer Science 2018-08-14 Shizhe Zhao , Daniel D. Harabor , David Taniar

In plenty of machine learning applications, the most relevant items for a particular query should be efficiently extracted, while the relevance function is based on a highly-nonlinear model, e.g., DNNs or GBDTs. Due to the high…

Information Retrieval · Computer Science 2019-10-21 Stanislav Morozov , Artem Babenko

Change detection (CD) is essential for various real-world applications, such as urban management and disaster assessment. Numerous CD methods have been proposed, and considerable results have been achieved recently. However, detecting…

Computer Vision and Pattern Recognition · Computer Science 2024-10-21 Zhenglai Li , Chang Tang , Xinwang Liu , Xingchen Hu , Xianju Li , Ning Li , Changdong Li

Since convolutional neural network (CNN) lacks an inherent mechanism to handle large scale variations, we always need to compute feature maps multiple times for multi-scale object detection, which has the bottleneck of computational cost in…

Computer Vision and Pattern Recognition · Computer Science 2018-02-09 Yu Liu , Hongyang Li , Junjie Yan , Fangyin Wei , Xiaogang Wang , Xiaoou Tang

Nearest neighbor search and k-nearest neighbor graph construction are two fundamental issues arise from many disciplines such as multimedia information retrieval, data-mining and machine learning. They become more and more imminent given…

Information Retrieval · Computer Science 2020-09-18 Wan-Lei Zhao , Hui Wang , Chong-Wah Ngo