Results 51 to 60 of about 3,672,861 (190)

Delineation of agricultural fields using multi-task BsiNet from high-resolution satellite images

International Journal of Applied Earth Observations and Geoinformation, 2022
This paper presents a new multi-task neural network, called BsiNet, to delineate agricultural fields from high-resolution satellite images. BsiNet is modified from a Psi-Net by structuring three parallel decoders into a single encoder to improve ...
Jiang Long, Mengmeng Li, Xiaoqin Wang, Alfred Stein   +3 more
doaj   +1 more source

AUHF-DETR: A Lightweight Transformer with Spatial Attention and Wavelet Convolution for Embedded UAV Small Object Detection

Remote Sensing
Real-time object detection on embedded unmanned aerial vehicles (UAVs) is crucial for emergency rescue, autonomous driving, and target tracking applications.
Hengyu Guo, Qunyong Wu, Yuhang Wang
doaj   +1 more source

Tree-Based and Optimum Cut-Based Origin-Destination Flow Clustering

ISPRS International Journal of Geo-Information, 2019
Data about the movements of diverse objects, including human beings, animals, and commodities, are collected in growing amounts as location-aware technologies become pervasive. Clustering has become an increasingly important analytical tool for revealing
Qiuliang Xiang, Qunyong Wu
doaj   +1 more source

Longitude : a privacy-preserving location sharing protocol for mobile applications [PDF]

, 2011
Location sharing services are becoming increasingly popular. Although many location sharing services allow users to set up privacy policies to control who can access their location, the use made by service providers remains a source of concern.
A. Beresford, A. Lewko, D. Boneh, F. Guo, G. Ateniese, G. Zhong, M. Blaze, M. Langheinrich, M. Scott, M. Scott, N. Fournel, P. Ruppel, S. Chatterjee, S. Even, T. Hashem   +14 more
core   +3 more sources

From cropland to cropped field: A robust algorithm for national-scale mapping by fusing time series of Sentinel-1 and Sentinel-2

International Journal of Applied Earth Observations and Geoinformation, 2022
Detailed and updated maps of actively cropped fields on a national scale are vital for global food security. Unfortunately, this information is not provided in existing land cover datasets, especially lacking in smallholder farmer systems.
Bingwen Qiu, Duoduo Lin, Chongcheng Chen, Peng Yang, Zhenghong Tang, Zhenong Jin, Zhiyan Ye, Xiaolin Zhu, Mingjie Duan, Hongyu Huang, Zhiyuan Zhao, Weiming Xu, Zuoqi Chen   +12 more
doaj   +1 more source

A Reputation Economy: Results from an Empirical Survey on Academic Data Sharing [PDF]

, 2015
Academic data sharing is a way for researchers to collaborate and thereby meet the needs of an increasingly complex research landscape. It enables researchers to verify results and to pursuit new research questions with "old" data.
Fecher, Benedikt, Friesike, Sascha, Hebing, Marcel, Linek, Stephanie, Sauermann, Armin   +4 more
core   +3 more sources

High-Resolution Daily Evapotranspiration Estimation in Arid Agricultural Regions Based on Remote Sensing via an Improved PT-JPL and CUWFM Fusion Framework

Remote Sensing
Evapotranspiration (ET) plays a crucial role in the terrestrial water cycle, especially in arid and semi-arid agricultural regions where precise water management is essential.
Hongwei Liu, Xiaoqin Wang, Hongyu Zhang, Mengmeng Li, Qunyong Wu   +4 more
doaj   +1 more source

Cross-modal feature interaction network for heterogeneous change detection

Geo-spatial Information Science
Heterogeneous change detection is a task of considerable practical importance and significant challenge in remote sensing. Heterogeneous change detection involves identifying change areas using remote sensing images obtained from different sensors or ...
Zhiwei Yang, Xiaoqin Wang, Haihan Lin, Mengmeng Li, Mengjing Lin   +4 more
doaj   +1 more source

Estimating Coastal Chlorophyll-A Concentration from Time-Series OLCI Data Based on Machine Learning

Remote Sensing, 2021
Chlorophyll-a (chl-a) is an important parameter of water quality and its concentration can be directly retrieved from satellite observations. The Ocean and Land Color Instrument (OLCI), a new-generation water-color sensor onboard Sentinel-3A and Sentinel-
Hua Su, Xuemei Lu, Zuoqi Chen, Hongsheng Zhang, Wenfang Lu, Wenting Wu   +5 more
doaj   +1 more source

Data games. Sharing public goods with exclusion. [PDF]

A group of agents considers collaborating on a project which requires putting together elements owned by some of them. These elements are pure public goods with exclusion i.e. nonrival but excludable goods like for instance knowledge, data or information,
DEHEZ, Pierre, TELLONE, Daniela
core   +6 more sources