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Abundant real-world data can be naturally represented by large-scale networks, which demands efficient and effective learning algorithms. At the same time, labels may only be available for some networks, which demands these algorithms to be…

Machine Learning · Computer Science 2022-09-08 Tao He , Lianli Gao , Jingkuan Song , Yuan-Fang Li

Randomized parallel algorithms for many fundamental problems achieve optimal linear work in expectation, but upgrading this guarantee to hold with high probability (whp) remains a recurring theoretical challenge. In this paper, we address…

Data Structures and Algorithms · Computer Science 2026-03-03 Chase Hutton , Adam Melrod

Hashing has been widely used for efficient similarity search based on its query and storage efficiency. To obtain better precision, most studies focus on designing different objective functions with different constraints or penalty terms…

Data Structures and Algorithms · Computer Science 2018-10-02 Xingbo Liu , Xiushan Nie , Yilong Yin

This paper presents a parallelizable variant of the well-known Hierarchical Cooperative A* algorithm (HCA*) for the multi-agent path finding (MAPF) problem. In this variant, all agents initially find their shortest paths disregarding the…

Systems and Control · Electrical Eng. & Systems 2025-02-03 Sreenivasan Ganti , Visnu Srinivasan , Pallavi Ramicetty , Shravan Mohan , Milind Savagaonkar , Shubhashis Sengupta

Optimization of heuristic functions for the A* algorithm, realized by deep neural networks, is usually done by minimizing square root loss of estimate of the cost to goal values. This paper argues that this does not necessarily lead to a…

Machine Learning · Computer Science 2022-09-13 Leah Chrestien , Tomas Pevny , Antonin Komenda , Stefan Edelkamp

Efficient implementations of parallel applications on heterogeneous hybrid architectures require a careful balance between computations and communications with accelerator devices. Even if most of the communication time can be overlapped by…

Distributed, Parallel, and Cluster Computing · Computer Science 2014-09-22 Raphaël Bleuse , Thierry Gautier , João V. F. Lima , Grégory Mounié , Denis Trystram

Due to the unstructuredness and the lack of schemas of graphs, such as knowledge graphs, social networks, and RDF graphs, keyword search for querying such graphs has been proposed. As graphs have become voluminous, large-scale distributed…

Databases · Computer Science 2023-09-12 Jiaxin Jiang , Byron Choi , Xin Huang , Jianliang Xu , Sourav S Bhowmick

Recently, learning to hash has been widely studied for image retrieval thanks to the computation and storage efficiency of binary codes. For most existing learning to hash methods, sufficient training images are required and used to learn…

Information Retrieval · Computer Science 2019-03-04 Ji Liu , Lei Zhang

The problem of task scheduling with communication delays is strongly NP-hard. State-space search algorithms such as A* have been shown to be a promising approach to solving small to medium sized instances optimally. A recently proposed…

Distributed, Parallel, and Cluster Computing · Computer Science 2019-05-15 Michael Orr , Oliver Sinnen

Many models have been proposed for vision and language tasks, especially the image-text retrieval task. All state-of-the-art (SOTA) models in this challenge contained hundreds of millions of parameters. They also were pretrained on a large…

Computer Vision and Pattern Recognition · Computer Science 2023-01-13 Manh-Duy Nguyen , Binh T. Nguyen , Cathal Gurrin

Neural architecture search has attracted wide attentions in both academia and industry. To accelerate it, researchers proposed weight-sharing methods which first train a super-network to reuse computation among different operators, from…

Machine Learning · Computer Science 2020-12-16 Xin Chen , Lingxi Xie , Jun Wu , Longhui Wei , Yuhui Xu , Qi Tian

Distributed Hash Tables (DHTs) have been used in several applications, but most DHTs have opted to solve lookups with multiple hops, to minimize bandwidth costs while sacrificing lookup latency. This paper presents D1HT, an original DHT…

Distributed, Parallel, and Cluster Computing · Computer Science 2014-09-01 Luiz Monnerat , Claudio L. Amorim

We consider the problem of optimal planning in stochastic domains with resource constraints, where the resources are continuous and the choice of action at each step depends on resource availability. We introduce the HAO* algorithm, a…

Artificial Intelligence · Computer Science 2014-01-16 Nicolas Meuleau , Emmanuel Benazera , Ronen I. Brafman , Eric A. Hansen , Mausam

Recent years have seen more and more demand for a unified framework to address multiple realistic image retrieval tasks concerning both category and attributes. Considering the scale of modern datasets, hashing is favorable for its low…

Computer Vision and Pattern Recognition · Computer Science 2016-07-20 Haomiao Liu , Ruiping Wang , Shiguang Shan , Xilin Chen

This paper proposed a novel method for autonomous parking. Autonomous parking has received a lot of attention because of its convenience, but due to the complex environment and the non-holonomic constraints of vehicle, it is difficult to…

Robotics · Computer Science 2022-10-18 Jihao Huang , Zhitao Liu , Xuemin Chi , Feng Hong , Hongye Su

Representing images by compact hash codes is an attractive approach for large-scale content-based image retrieval. In most state-of-the-art hashing-based image retrieval systems, for each image, local descriptors are first aggregated as a…

Computer Vision and Pattern Recognition · Computer Science 2019-09-04 Thanh-Toan Do , Khoa Le , Tuan Hoang , Huu Le , Tam V. Nguyen , Ngai-Man Cheung

Learning-based hashing algorithms are ``hot topics" because they can greatly increase the scale at which existing methods operate. In this paper, we propose a new learning-based hashing method called ``fast supervised discrete hashing"…

Machine Learning · Computer Science 2019-04-09 Jie Gui , Tongliang Liu , Zhenan Sun , Dacheng Tao , Tieniu Tan

Graph-based approximate nearest neighbor search has attracted more and more attentions due to its online search advantages. Numbers of methods studying the enhancement of speed and recall have been put forward. However, few of them focus on…

Information Retrieval · Computer Science 2021-02-10 Kang Zhao , Pan Pan , Yun Zheng , Yanhao Zhang , Changxu Wang , Yingya Zhang , Yinghui Xu , Rong Jin

In unstructured environments like parking lots or construction sites, due to the large search-space and kinodynamic constraints of the vehicle, it is challenging to achieve real-time planning. Several state-of-the-art planners utilize…

Robotics · Computer Science 2023-07-18 Bhargav Adabala , Zlatan Ajanović

In visual domain adaptation (DA), separating the domain-specific characteristics from the domain-invariant representations is an ill-posed problem. Existing methods apply different kinds of priors or directly minimize the domain discrepancy…

Computer Vision and Pattern Recognition · Computer Science 2020-12-01 Shuhao Cui , Xuan Jin , Shuhui Wang , Yuan He , Qingming Huang