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1,326 Results Found

  • Article
  • Open Access
16 Citations
7,740 Views
20 Pages

Spatial Indexing for Data Searching in Mobile Sensing Environments

  • Yuchao Zhou,
  • Suparna De,
  • Wei Wang,
  • Klaus Moessner and
  • Marimuthu S. Palaniswami

18 June 2017

Data searching and retrieval is one of the fundamental functionalities in many Web of Things applications, which need to collect, process and analyze huge amounts of sensor stream data. The problem in fact has been well studied for data generated by...

  • Article
  • Open Access

6 November 2025

To reduce the pollutant emissions of water ecological POI logistics, the water ecological POI logistics route-planning method based on the improved water network space AGNES clustering model and the symmetrical simulated Huffman spatial searching tre...

  • Article
  • Open Access
4 Citations
2,692 Views
11 Pages

Dirac Spatial Search with Electric Fields

  • Julien Zylberman and
  • Fabrice Debbasch

31 October 2021

Electric Dirac quantum walks, which are a discretisation of the Dirac equation for a spinor coupled to an electric field, are revisited in order to perform spatial searches. The Coulomb electric field of a point charge is used as a non local oracle t...

  • Article
  • Open Access
557 Views
21 Pages

Efficient Top-k Spatial Dataset Search Processing

  • Jie Sun,
  • Hua Dai,
  • Mingyue Zhang,
  • Hao Zhou,
  • Pengyue Li,
  • Geng Yang and
  • Lei Chen

21 February 2025

In this paper, we introduce two novel top-k spatial dataset search schemes, KSDS and KSDS+. The core innovation of these schemes lies in partitioning the spatial datasets into grids and assessing similarity based on the distribution of points within...

  • Article
  • Open Access
4 Citations
1,721 Views
28 Pages

24 August 2024

In view of the complexity and diversity of hyperspectral images (HSIs), the classification task has been a major challenge in the field of remote sensing image processing. Hyperspectral classification (HSIC) methods based on neural architecture searc...

  • Article
  • Open Access
7 Citations
3,732 Views
22 Pages

1 September 2021

By labelling high spatial resolution (HSR) images with specific semantic classes according to geographical properties, scene classification has been proven to be an effective method for HSR remote sensing image semantic interpretation. Deep learning...

  • Article
  • Open Access
3 Citations
2,783 Views
28 Pages

3 February 2022

Cuckoo Search (CS) is one of the heuristic algorithms that has gradually drawn public attention because of its simple parameters and easily understood principle. However, it still has some disadvantages, such as its insufficient accuracy and slow con...

  • Article
  • Open Access
3 Citations
2,441 Views
13 Pages

Quantum Spatial Search with Electric Potential: Long-Time Dynamics and Robustness to Noise

  • Thibault Fredon,
  • Julien Zylberman,
  • Pablo Arnault and
  • Fabrice Debbasch

5 December 2022

We present various results on the scheme introduced in a previous work, which is a quantum spatial-search algorithm on a two-dimensional (2D) square spatial grid, realized with a 2D Dirac discrete-time quantum walk (DQW) coupled to a Coulomb electric...

  • Article
  • Open Access
1,693 Views
17 Pages

23 July 2023

Search engines have been the primary tool for online information search before traveling. Timely detection and the control of peak tourist flows in scenic areas prevent safety hazards and the overconsumption of tourism resources due to excessive tour...

  • Article
  • Open Access
17 Citations
6,096 Views
20 Pages

Search Strategy Analysis of 5xFAD Alzheimer Mice in the Morris Water Maze Reveals Sex- and Age-Specific Spatial Navigation Deficits

  • Carolina Quintanilla Sánchez,
  • Franziska W. Schmitt,
  • Nadine Curdt,
  • Anna Celine Westhoff,
  • Irina Wanda Helene Bänfer,
  • Thomas A. Bayer and
  • Yvonne Bouter

Spatial disorientation and navigational impairments are not only some of the first memory deficits in Alzheimer’s disease, but are also very disease-specific. In rodents, the Morris Water Maze is used to investigate spatial navigation and memor...

  • Article
  • Open Access
4 Citations
3,319 Views
23 Pages

Similar time series search is one of the most important time series mining tasks in our daily life. As recent advances in sensor technologies accumulate abundant multi-dimensional time series data associated with multivariate quantities, it becomes a...

  • Article
  • Open Access
16 Citations
8,388 Views
26 Pages

12 October 2015

Vehicle routing optimization (VRO) designs the best routes to reduce travel cost, energy consumption, and carbon emission. Due to non-deterministic polynomial-time hard (NP-hard) complexity, many VROs involved in real-world applications require too m...

  • Article
  • Open Access
10 Citations
3,761 Views
16 Pages

22 April 2021

Aiming at the multi-depot heterogeneous vehicle routing problem under the time-dependent road network and soft time window, considering vehicle fixed cost, time window penalty cost and vehicle transportation cost, an optimization model of time-depend...

  • Article
  • Open Access
7 Citations
7,878 Views
18 Pages

Increasing volumes of spatial data about urban areas are captured and made available via volunteered geographic information (VGI) sources, such as OpenStreetMap (OSM). Hence, new opportunities arise for regional exploration that can lead to improveme...

  • Article
  • Open Access
26 Citations
5,554 Views
15 Pages

19 April 2021

Nighttime light (NTL) data are increasingly used in urban studies and urban planning owing to their strong connection with human activities, although the detection capacity is limited by the spatial resolution of older data. In the present study, we...

  • Article
  • Open Access
604 Views
23 Pages

10 September 2025

Hyperspectral band selection (BS) is an important technique to reduce data dimensionality for the classification applications of hyperspectral remote sensing images (HSIs). Recently, searching-based BS methods have received increasing attention for t...

  • Article
  • Open Access
69 Citations
13,058 Views
30 Pages

23 September 2015

This study adopts rainwater harvesting systems (RWHS) into a stormwater runoff management model (SWMM) for the spatial design of capacities and quantities of rain barrel for urban flood mitigation. A simulation-optimization model is proposed for effe...

  • Article
  • Open Access
1 Citations
772 Views
27 Pages

19 February 2025

This research introduces novel analytical methods for evaluating multi-UAV persistent search and retrieval with stochastic target appearance (PSR-STA) scenarios. Traditional approaches that rely on single aggregate effectiveness measures for a scenar...

  • Article
  • Open Access
13 Citations
4,238 Views
17 Pages

16 November 2022

Traditional inverse distance weighting (IDW) interpolation is a process employed to estimate unknown values based on neighborhoods in 2D space. Proposed in this study is an improved IDW interpolation method that uses 3D search neighborhoods for effec...

  • Article
  • Open Access
7 Citations
5,231 Views
44 Pages

19 April 2019

Animal disease is a major threat to the sustainability of the global livestock market. We explore the price risk spillover of avian influenza to the broiler market, from the perspective of public opinion. Unlike in previous work, where avian influenz...

  • Article
  • Open Access
5 Citations
862 Views
17 Pages

23 April 2025

Quantum walks are a powerful framework for simulating complex quantum systems and designing quantum algorithms, particularly for spatial search on graphs, where the goal is to find a marked vertex efficiently. In this work, we present efficient quant...

  • Feature Paper
  • Article
  • Open Access
5 Citations
3,261 Views
23 Pages

18 April 2024

A technology to search for victims in disaster areas by localizing human-related sound sources, such as voices and emergency whistles, using a drone-embedded microphone array was researched. One of the challenges is the development of sound source lo...

  • Article
  • Open Access
4 Citations
2,683 Views
23 Pages

9 September 2021

Recently, Discriminative Correlation Filters (DCF) have shown excellent performance in visual object tracking. The correlation for a computing response map can be conducted efficiently in Fourier domain by Discrete Fourier Transform (DFT) of inputs,...

  • Article
  • Open Access
14 Citations
2,393 Views
14 Pages

In traditional clinical medicine, respiratory physicians or radiologists often identify the location of lung nodules by highlighting targets in consecutive CT slices, which is labor-intensive and easy-to-misdiagnose work. To achieve intelligent detec...

  • Article
  • Open Access
14 Citations
8,008 Views
20 Pages

With the increasing use of geographical information and technology in a variety of knowledge domains and disciplines, the need to discover and access suitable geospatial data is imperative. Most spatial data infrastructures (SDI) provide geoportals a...

  • Article
  • Open Access
3 Citations
4,232 Views
16 Pages

Tactile Cues for Improving Target Localization in Subjects with Tunnel Vision

  • Damien Camors,
  • Damien Appert,
  • Jean-Baptiste Durand and
  • Christophe Jouffrais

The loss of peripheral vision is experienced by millions of people with glaucoma or retinitis pigmentosa, and has a major impact in everyday life, specifically to locate visual targets in the environment. In this study, we designed a wearable interfa...

  • Article
  • Open Access
1 Citations
1,886 Views
20 Pages

In Search of the Max Coverage Region in Road Networks

  • Lanting Fang,
  • Ze Kou,
  • Yuzhang Zhou,
  • Yudong Zhang and
  • George Y. Yuan

26 February 2023

The widespread use of mobile devices has resulted in the generation of vast amounts of spatial data. The availability of such large-scale spatial data facilitates the development of data-driven approaches to address real-life problems. This paper int...

  • Article
  • Open Access
2,594 Views
32 Pages

Compared to analog beamforming, digital beamforming offers better self-calibration and lower sidelobe performance, which has a profound impact on improving low Earth orbit receiver performance. The Digital Beamforming (DBF) module in the low Earth or...

  • Article
  • Open Access
1 Citations
2,177 Views
19 Pages

13 October 2021

Understanding the temporal and spatial variability of water quality is important in order to establish effective customized management strategies for polluted aquatic ecosystems. Although various water quality management methods have been proposed ba...

  • Article
  • Open Access
9 Citations
9,727 Views
20 Pages

Developing a Cell-Based Spatial Optimization Model for Land-Use Patterns Planning

  • Chun-Wei Huang,
  • Yu-Pin Lin,
  • Tzung-Su Ding and
  • Johnathen Anthony

9 December 2014

This study developed a cell-based spatial optimization model compatible with the ArcGIS platform, termed Dynamically Dimensioned Search Landscape Optimization Planning model (DDSLOP), for landscape planning. The development of the proposed model was...

  • Article
  • Open Access
2,721 Views
33 Pages

23 November 2023

This article describes an approach for mobile robots to identify scenes in configurations of objects spread across dense environments. This identification is enabled by intertwining the robotic object search and the scene recognition on already detec...

  • Article
  • Open Access
8 Citations
4,721 Views
16 Pages

Updating topographic maps in multi-representation databases is crucial to a number of applications. An efficient way to update topographic maps is to propagate the updates from large-scale maps to small-scale maps. Because objects are often portrayed...

  • Article
  • Open Access
2 Citations
2,066 Views
18 Pages

1 June 2024

Aircraft taxiing emissions are the main source of carbon dioxide and other pollutant gas emissions during airport ground operations. It is crucial to optimize aircraft taxiing from both spatial and temporal perspectives to improve airport operation e...

  • Article
  • Open Access
2 Citations
4,481 Views
26 Pages

The tremendous advance in information technology has promoted the rapid development of location-based services (LBSs), which play an indispensable role in people’s daily lives. Compared with a traditional LBS based on Point-Of-Interest (POI), w...

  • Article
  • Open Access
5 Citations
2,382 Views
16 Pages

21 June 2022

Cyber security is identified as an emerging concern for information technology management in business and society, owing to swift advances in telecommunication and wireless technologies. Cyberspace security has had a tremendous impact on numerous cru...

  • Article
  • Open Access
20 Citations
4,638 Views
17 Pages

Repeated search studies are a hallmark in the investigation of the interplay between memory and attention. Due to a usually employed averaging, a substantial decrease in response times occurring between the first and second search through the same se...

  • Article
  • Open Access
7 Citations
3,382 Views
24 Pages

Searching for an Optimal Hexagonal Shaped Enumeration Unit Size for Effective Spatial Pattern Recognition in Choropleth Maps

  • Izabela Karsznia,
  • Izabela Małgorzata Gołębiowska,
  • Jolanta Korycka-Skorupa and
  • Tomasz Nowacki

Thoughtful consideration of the enumeration unit size in choropleth map design is important to ensure the correct communication of spatial information. However, the enumeration unit size and its influence on pattern conveying in choropleth maps have...

  • Article
  • Open Access
8 Citations
4,410 Views
25 Pages

25 May 2021

Real-time cycle slip detection and repair is one of the key issues in global positioning system (GPS) high precision data processing and application. In particular, when GPS stations are in special environments, such as strong ionospheric disturbance...

  • Article
  • Open Access
5 Citations
8,642 Views
20 Pages

Developing mobile geo-information systems for sensor web applications involves technologies that can access linked geographical and semantically related Internet information. Additionally, in tomorrow’s Web 4.0 world, it is envisioned that trillions...

  • Article
  • Open Access
1 Citations
696 Views
22 Pages

20 February 2025

Visual searching is a key cognitive process for acquiring external information, involving the identification of specific stimuli in complex environments. This study, utilizing Virtual Reality (VR) technology and eye-tracking devices, systematically e...

  • Article
  • Open Access
89 Citations
16,125 Views
22 Pages

22 February 2008

Spectral mixing is a problem inherent to remote sensing data and results in fewimage pixel spectra representing "pure" targets. Linear spectral mixture analysis isdesigned to address this problem and it assumes that the pixel-to-pixel variability in...

  • Article
  • Open Access
1,269 Views
12 Pages

Visual-Spatial Search in Neglect Syndrome as a Function of the Number of Stimuli in the Hemifields

  • Nataliya Varako,
  • Maria Kovyazina,
  • Daria Yurina,
  • Victoria Propustina,
  • Georgiy Stepanov,
  • Svetlana Vasilyeva,
  • Vadim Daminov,
  • Anatoliy Skvortsov,
  • Maria Baulina and
  • Yuri Zinchenko

28 November 2024

Background: Neglect syndrome is a serious condition that often affects the ability to perform visual-spatial search tasks, interfering with the ability to detect stimuli on the left side of space. A number of factors can affect the success of visual...

  • Article
  • Open Access
635 Views
29 Pages

13 June 2025

The accurate identification of water bodies in hyperspectral images (HSIs) remains challenging due to hierarchical representation imbalances in deep learning models, where shallow layers overly focus on spectral features, boundary ambiguities caused...

  • Article
  • Open Access
5 Citations
2,104 Views
22 Pages

29 August 2023

Convolutional neural networks (CNNs) are indeed commonly employed for hyperspectral image classification. However, the architecture of cellular neural networks typically requires manual design and fine-tuning, which can be quite laborious. Fortunatel...

  • Article
  • Open Access
1,146 Views
22 Pages

15 January 2025

The interdisciplinary nature of theatre studies often results in research that places greater emphasis on literary analysis than on architectural considerations. Consequently, theatrical literature tends to focus more on the relationship between text...

  • Article
  • Open Access
1,717 Views
21 Pages

6 May 2025

The density-based spatial clustering of applications with noise (DBSCAN) is able to cluster arbitrarily structured datasets. However, the clustering result of this algorithm is exceptionally sensitive to the neighborhood radius (Eps) and noise points...

  • Article
  • Open Access
4 Citations
1,958 Views
17 Pages

31 July 2023

When forming the radar situation of a terrain, in order to increase its information content and to extract useful information, multi-position spatially distributed systems for integrating multi-angle radar data established by small-sized UAV-based ai...

  • Article
  • Open Access
12 Citations
3,115 Views
17 Pages

19 July 2021

Cities in an urban agglomeration closely interact with each other through various flows. Information flow, as one of the important forms of urban interactions, is now increasingly indispensable with the fast development of informatics technology. Tha...

  • Article
  • Open Access
1 Citations
2,328 Views
22 Pages

AgriNAS: Neural Architecture Search with Adaptive Convolution and Spatial–Time Augmentation Method for Soybean Diseases

  • Oluwatoyin Joy Omole,
  • Renata Lopes Rosa,
  • Muhammad Saadi and
  • Demóstenes Zegarra Rodriguez

16 December 2024

Soybean is a critical agricultural commodity, serving as a vital source of protein and vegetable oil, and contributing significantly to the economies of producing nations. However, soybean yields are frequently compromised by disease and pest infesta...

  • Article
  • Open Access
3 Citations
1,822 Views
34 Pages

6 December 2023

In machine learning, classifiers have the feature of constant symmetry when performing the attribute transformation. In the research field of tourism recommendation, tourists’ interests should be mined and extracted by the symmetrical transform...

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