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Embedding image features into a binary Hamming space can improve both the speed and accuracy of large-scale query-by-example image retrieval systems. Supervised hashing aims to map the original features to compact binary codes in a manner…

机器学习 · 计算机科学 2016-11-17 Guosheng Lin , Chunhua Shen , Anton van den Hengel

The connection between the maximum spanning tree in a directed graph and the best dependency tree of a sentence has been exploited by the NLP community. However, for many dependency parsing schemes, an important detail of this approach is…

计算与语言 · 计算机科学 2021-06-03 Ran Zmigrod , Tim Vieira , Ryan Cotterell

A recent work shows how we can optimize a tree based mode of operation for a rate 1 hash function. In particular, an algorithm and a theorem are presented for selecting a good tree topology in order to optimize both the running time and the…

分布式、并行与集群计算 · 计算机科学 2016-04-15 Kevin Atighehchi

Unmanned aerial vehicles (UAV) are expected to replace human in hazardous tasks of surface inspection due to their flexibility in operating space and capability of collecting high quality visual data. In this study, we propose enhanced…

计算机视觉与模式识别 · 计算机科学 2019-12-30 Qiuchen Zhu , Manh Duong Phung , Quang Ha

Error Tree is a novel tree structure that is mainly oriented to solve the approximate pattern matching problems, Hamming and edit distances, as well as the wildcards matching problem. The input is a text of length $n$ over a fixed alphabet…

数据结构与算法 · 计算机科学 2020-08-25 Anas Al-Okaily

The k-fold cross-validation is commonly used to evaluate the effectiveness of SVMs with the selected hyper-parameters. It is known that the SVM k-fold cross-validation is expensive, since it requires training k SVMs. However, little work…

机器学习 · 计算机科学 2017-02-07 Zeyi Wen , Bin Li , Rao Kotagiri , Jian Chen , Yawen Chen , Rui Zhang

Modern neural network technologies, including large language models, have achieved remarkable success in various applied artificial intelligence applications, however, they face a range of fundamental limitations. Among them are…

人工智能 · 计算机科学 2025-08-27 I. I. Priezzhev , D. A. Danko , A. V. Shubin

Developing routing protocols for Vehicular Ad Hoc Networks (VANETs) is a significant challenge in these large, self- organized and distributed networks. We address this challenge by studying VANETs from a network science perspective to…

网络与互联网体系结构 · 计算机科学 2016-11-18 Romeu Monteiro , Susana Sargento , Wantanee Viriyasitavat , Ozan K. Tonguz

Random Indexing (RI) K-tree is the combination of two algorithms for clustering. Many large scale problems exist in document clustering. RI K-tree scales well with large inputs due to its low complexity. It also exhibits features that are…

信息检索 · 计算机科学 2010-02-02 Christopher M. De Vries , Lance De Vine , Shlomo Geva

Augmentative and Alternative Communication (AAC) systems allow people with disabilities to provide input to devices which empower them to more fully interact with their environment. Within AAC, switch scanning is a common paradigm for…

人机交互 · 计算机科学 2016-06-09 Matt Higger , Mohammad Moghadamfalahi , Fernando Quivira , Deniz Erdogmus

The maximum common subtree isomorphism problem asks for the largest possible isomorphism between subtrees of two given input trees. This problem is a natural restriction of the maximum common subgraph problem, which is ${\sf NP}$-hard in…

数据结构与算法 · 计算机科学 2016-08-23 Andre Droschinsky , Nils M. Kriege , Petra Mutzel

Modern deep learning models capture the semantics of complex data by transforming them into high-dimensional embedding vectors. Emerging applications, such as retrieval-augmented generation, use approximate nearest neighbor (ANN) search in…

数据库 · 计算机科学 2025-10-01 Guoyu Hu , Shaofeng Cai , Tien Tuan Anh Dinh , Zhongle Xie , Cong Yue , Gang Chen , Beng Chin Ooi

In recent years, non-parametric methods utilizing random walks on graphs have been used to solve a wide range of machine learning problems, but in their simplest form they do not scale well due to the quadratic complexity. In this paper, a…

机器学习 · 计算机科学 2012-10-19 Saeed Amizadeh , Bo Thiesson , Milos Hauskrecht

The rooted tree is an important data structure, and the subtree size, height, and depth are naturally defined attributes of every node. We consider the problem of the existence of a k-ary tree given a list of attribute sequences. We give…

数据结构与算法 · 计算机科学 2016-07-19 Akshar Varma

Tree-based models such as decision trees and random forests (RF) are a cornerstone of modern machine-learning practice. To mitigate overfitting, trees are typically regularized by a variety of techniques that modify their structure (e.g.…

机器学习 · 计算机科学 2022-02-03 Abhineet Agarwal , Yan Shuo Tan , Omer Ronen , Chandan Singh , Bin Yu

A recent work shows how we can optimize a tree based mode of operation for a hash function where the sizes of input message blocks and digest are the same, subject to the constraint that the involved tree structure has all its leaves at the…

分布式、并行与集群计算 · 计算机科学 2017-06-28 Kevin Atighehchi

We consider the problem of computing a Steiner tree of minimum cost under a hop constraint which requires the depth of the tree to be at most $k$. Our main result is an exact algorithm for metrics induced by graphs with bounded treewidth…

数据结构与算法 · 计算机科学 2022-10-12 Martin Böhm , Ruben Hoeksma , Nicole Megow , Lukas Nölke , Bertrand Simon

In this paper, we revisit the problem of indexing multi-dimensional data in memory for the efficient support of multi-dimensional range queries and nearest neighbor queries. This is a classic problem in main-memory databases, where there is…

数据库 · 计算机科学 2026-05-06 Achilleas Michalopoulos , Dimitrios Tsitsigkos , Nikos Mamoulis

In the k-arc connected subgraph problem, we are given a directed graph G and an integer k and the goal is the find a subgraph of minimum cost such that there are at least k-arc disjoint paths between any pair of vertices. We give a simple…

数据结构与算法 · 计算机科学 2012-05-09 Bundit Laekhanukit , Shayan Oveis Gharan , Mohit Singh

In low-dimensional topology, many important decision algorithms are based on normal surface enumeration, which is a form of vertex enumeration over a high-dimensional and highly degenerate polytope. Because this enumeration is subject to…

几何拓扑 · 数学 2013-02-18 Benjamin A. Burton , Melih Ozlen