Výsledky vyhledávání - "spatial databases"

T-Drive: Enhancing Driving Directions with Taxi Drivers' Intelligence Autor Yuan, Jing, Zheng, Yu, Xie, Xing, Sun, Guangzhong

“…This paper presents a smart driving direction system leveraging the intelligence of experienced drivers. In this system, GPS-equipped taxis are employed as…”
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Comparative Analysis Review of Pioneering DBSCAN and Successive Density-Based Clustering Algorithms Autor Bushra, Adil Abdu, Yi, Gangman

“…The density-based spatial clustering of applications with noise (DBSCAN) is regarded as a pioneering algorithm of the density-based clustering technique. It…”
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Top-k Socio-Spatial Co-Engaged Location Selection for Social Users Autor Haldar, Nur Al Hasan, Li, Jianxin, Ali, Mohammed Eunus, Cai, Taotao, Chen, Yunliang, Sellis, Timos, Reynolds, Mark

“…With the advent of location-based social networks, users can tag their daily activities in different locations through check-ins. These check-in locations…”
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Spatiotemporal Contrastive Video Representation Learning Autor Qian, Rui, Meng, Tianjian, Gong, Boqing, Yang, Ming-Hsuan, Wang, Huisheng, Belongie, Serge, Cui, Yin

“…We present a self-supervised Contrastive Video Representation Learning (CVRL) method to learn spatiotemporal visual representations from unlabeled videos. Our…”
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Faster-LIO: Lightweight Tightly Coupled Lidar-Inertial Odometry Using Parallel Sparse Incremental Voxels Autor Bai, Chunge, Xiao, Tao, Chen, Yajie, Wang, Haoqian, Zhang, Fang, Gao, Xiang

“…This letter presents an incremental voxel-based lidar-inertial odometry (LIO) method for fast-tracking spinning and solid-state lidar scans. To achieve the…”
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NALSpatial: A Natural Language Interface for Spatial Databases Autor Liu, Mengyi, Wang, Xieyang, Xu, Jianqiu, Lu, Hua, Tong, Yongxin

“…Spatial databases play a vital role in a number of applications ranging from geographic information systems to location-based services. Application tasks…”
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Efficient and Accurate Spatial Queries Using Lossy Compressed 3D Geometry Data Autor Teng, Dejun, Li, Zhaochuan, Peng, Zhaohui, Ma, Shuai, Wang, Fusheng

“…3D spatial data management is increasingly vital across various application scenarios, such as GIS, digital twins, human atlases, and tissue imaging. However,…”
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Cost-Aware and Distance-Constrained Collective Spatial Keyword Query Autor Chan, Harry Kai-Ho, Liu, Shengxin, Long, Cheng, Wong, Raymond Chi-Wing

“…With the proliferation of location-based services, geo-textual data is becoming ubiquitous. Objects involved in geo-textual data include geospatial locations,…”
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GriT-DBSCAN: A spatial clustering algorithm for very large databases Autor Huang, Xiaogang, Ma, Tiefeng, Liu, Conan, Liu, Shuangzhe

“…•A grid-based algorithm for exact DBSCAN is proposed for large databases.•Grid tree is devised to speed up non-empty neighboring grids queries.•Use the spatial…”
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Spatial Origin-Destination Flow Imputation Using Graph Convolutional Networks Autor Yao, Xin, Gao, Yong, Zhu, Di, Manley, Ed, Wang, Jiaoe, Liu, Yu

“…Due to the limitation of data collection techniques and privacy issues, the problem of missing spatial origin-destination flows frequently occurs. Data…”
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BVI-DVC: A Training Database for Deep Video Compression Autor Ma, Di, Zhang, Fan, Bull, David R.

“…Deep learning methods are increasingly being applied in the optimisation of video compression algorithms and can achieve significantly enhanced coding gains,…”
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Real-Time City-Scale Taxi Ridesharing Autor Shuo Ma, Yu Zheng, Wolfson, Ouri

“…We proposed and developed a taxi-sharing system that accepts taxi passengers' real-time ride requests sent from smart phones and schedules proper taxis to pick…”
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TOUCHDOWN: Natural Language Navigation and Spatial Reasoning in Visual Street Environments Autor Chen, Howard, Suhr, Alane, Misra, Dipendra, Snavely, Noah, Artzi, Yoav

“…We study the problem of jointly reasoning about language and vision through a navigation and spatial reasoning task. We introduce the Touchdown task and…”
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Latent Gaussian Model Boosting Autor Sigrist, Fabio

“…Latent Gaussian models and boosting are widely used techniques in statistics and machine learning. Tree-boosting shows excellent prediction accuracy on many…”
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Enabling Efficient and Geometric Range Query With Access Control Over Encrypted Spatial Data Autor Xu, Guowen, Li, Hongwei, Dai, Yuanshun, Yang, Kan, Lin, Xiaodong

“…As a basic query function, range query has been exploited in many scenarios such as SQL retrieves, location-based services, and computational geometry…”
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Spatial Query Integrity with Voronoi Neighbors Autor Ling Hu, Wei-Shinn Ku, Bakiras, S., Shahabi, C.

“…With the popularity of location-based services and the abundant usage of smart phones and GPS-enabled devices, the necessity of outsourcing spatial data has…”
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Efficient Privacy-Preserving Spatial Data Query in Cloud Computing Autor Miao, Yinbin, Yang, Yutao, Li, Xinghua, Wei, Linfeng, Liu, Zhiquan, Deng, Robert H.

“…With the rapid development of geographic location technology and the explosive growth of data, a large amount of spatial data is outsourced to the cloud server…”
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Cross-Attention Spectral-Spatial Network for Hyperspectral Image Classification Autor Yang, Kai, Sun, Hao, Zou, Chunbo, Lu, Xiaoqiang

“…Hyperspectral image (HSI) classification aims to identify categories of hyperspectral pixels. Recently, many convolutional neural networks (CNNs) have been…”
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RB-Net: Training Highly Accurate and Efficient Binary Neural Networks With Reshaped Point-Wise Convolution and Balanced Activation Autor Liu, Chunlei, Ding, Wenrui, Chen, Peng, Zhuang, Bohan, Wang, Yufeng, Zhao, Yang, Zhang, Baochang, Han, Yuqi

“…In this paper, we find that the conventional convolution operation becomes the bottleneck for extremely efficient binary neural networks (BNNs). To address…”
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An Efficient Algorithm for Maximum Trajectory Coverage Query With Approximation Guarantee Autor He, Dan, Zhou, Thomas, Zhou, Xiaofang, Kim, Jiwon

“…In this paper, we study the <inline-formula> <tex-math notation="LaTeX">k</tex-math> </inline-formula> Maximum Trajectory Coverage Query, which aims to find…”
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