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We consider the NP-hard problem of MAP-inference for undirected discrete graphical models. We propose a polynomial time and practically efficient algorithm for finding a part of its optimal solution. Specifically, our algorithm marks some…

计算机视觉与模式识别 · 计算机科学 2017-02-06 Alexander Shekhovtsov , Paul Swoboda , Bogdan Savchynskyy

The facility location problems (FLPs) are a typical class of NP-hard combinatorial optimization problems, which are widely seen in the supply chain and logistics. Many mathematical and heuristic algorithms have been developed for optimizing…

机器学习 · 计算机科学 2022-10-28 Shiqing Liu , Xueming Yan , Yaochu Jin

Boundary labeling is a well-known method for displaying short textual labels for a set of point features in a figure alongside the boundary of that figure. Labels and their corresponding points are connected via crossing-free leaders. We…

计算几何 · 计算机科学 2024-09-06 Annika Bonerath , Martin Nöllenburg , Soeren Terziadis , Markus Wallinger , Jules Wulms

In the Boundary Labeling problem, we are given a set of $n$ points, referred to as sites, inside an axis-parallel rectangle $R$, and a set of $n$ pairwise disjoint rectangular labels that are attached to $R$ from the outside. The task is to…

This paper proposes a novel approach to map-based navigation system for unmanned aircraft. The proposed system attempts label-to-label matching, not image-to-image matching, between aerial images and a map database. The ground objects can…

计算机视觉与模式识别 · 计算机科学 2022-05-31 Youngjoo Kim

We present a novel area matching algorithm for merging two different 2D grid maps. There are many approaches to address this problem, nevertheless, most previous work is built on some assumptions, such as rigid transformation, or similar…

机器人学 · 计算机科学 2019-11-19 Jiawei Hou , Haofei Kuang , Sören Schwertfeger

Visualizing spatial data on small-screen devices such as smartphones and smartwatches poses new challenges in computational cartography. The current interfaces for map exploration require their users to zoom in and out frequently. Indeed,…

数据结构与算法 · 计算机科学 2020-09-01 Sven Gedicke , Annika Bonerath , Benjamin Niedermann , Jan-Henrik Haunert

This study poses the feature correspondence problem as a hypergraph node labeling problem. Candidate feature matches and their subsets (usually of size larger than two) are considered to be the nodes and hyperedges of a hypergraph. A…

计算机视觉与模式识别 · 计算机科学 2011-07-14 Toufiq Parag , Vladimir Pavlovic , Ahmed Elgammal

Point feature labeling is a classical problem in cartography and GIS that has been extensively studied for geospatial point data. At the same time, word clouds are a popular visualization tool to show the most important words in text data…

计算几何 · 计算机科学 2021-09-10 Sujoy Bhore , Robert Ganian , Guangping Li , Martin Nöllenburg , Jules Wulms

Solving classification with graph methods has gained huge popularity in recent years. This is due to the fact that the data can be intuitively modeled with graphs to utilize high level features to aid in solving the classification problem.…

机器学习 · 计算机科学 2020-11-12 Seyed Amin Fadaee , Maryam Amir Haeri

In this paper, we study whether inexpensive, physics-free supervision can reliably prioritize grasp-place candidates for budget-aware pick-and-place. From an object's initial pose, target pose, and a candidate grasp, we generate two…

机器人学 · 计算机科学 2025-12-23 Tianyuan Liu , Richard Dazeley , Benjamin Champion , Akan Cosgun

Optimizing robot poses and the map simultaneously has been shown to provide more accurate SLAM results. However, for non-feature based SLAM approaches, directly optimizing all the robot poses and the whole map will greatly increase the…

机器人学 · 计算机科学 2025-01-23 Yingyu Wang , Liang Zhao , Shoudong Huang

In a world where autonomous driving cars are becoming increasingly more common, creating an adequate infrastructure for this new technology is essential. This includes building and labeling high-definition (HD) maps accurately and…

计算机视觉与模式识别 · 计算机科学 2020-06-02 Mahdi Elhousni , Yecheng Lyu , Ziming Zhang , Xinming Huang

Dynamic maps that allow continuous map rotations, e.g., on mobile devices, encounter new issues unseen in static map labeling before. We study the following dynamic map labeling problem: The input is a static, labeled map, i.e., a set P of…

计算几何 · 计算机科学 2011-05-02 Andreas Gemsa , Martin Nöllenburg , Ignaz Rutter

The usefulness of technical drawings as well as scientific illustrations such as medical drawings of human anatomy essentially depends on the placement of labels that describe all relevant parts of the figure. In order to not spoil or…

计算几何 · 计算机科学 2017-02-08 Benjamin Niedermann , Martin Nöllenburg , Ignaz Rutter

Unravelling hidden patterns in datasets is a classical problem with many potential applications. In this paper, we present a challenge whose objective is to discover nonlinear relationships in noisy cloud of points. If a set of point…

机器学习 · 统计学 2018-05-31 Terry Lyons , Imanol Perez Arribas

The technology of dynamic map fusion among networked vehicles has been developed to enlarge sensing ranges and improve sensing accuracies for individual vehicles. This paper proposes a federated learning (FL) based dynamic map fusion…

机器学习 · 计算机科学 2022-09-23 Zijian Zhang , Shuai Wang , Yuncong Hong , Liangkai Zhou , Qi Hao

Multi-label ranking maps instances to a ranked set of predicted labels from multiple possible classes. The ranking approach for multi-label learning problems received attention for its success in multi-label classification, with one of the…

计算机视觉与模式识别 · 计算机科学 2022-12-09 Emine Dari , V. Bugra Yesilkaynak , Alican Mertan , Gozde Unal

A proper labeling of a graph is an assignment of integers to some elements of a graph, which may be the vertices, the edges, or both of them, such that we obtain a proper vertex coloring via the labeling subject to some conditions. The…

离散数学 · 计算机科学 2017-01-25 Ali Dehghan , Mohammad-Reza Sadeghi , Arash Ahadi

In the Wireless Localization Matching Problem (WLMP) the challenge is to match pieces of equipment with a set of candidate locations based on wireless signal measurements taken by the pieces of equipment. This challenge is complicated by…

信号处理 · 电气工程与系统科学 2019-08-15 Amin Ghafourian , Orestis Georgiou , Edmund Barter , Thilo Gross