Results 31 to 40 of about 53,424 (245)
ACM Transactions on Knowledge Discovery from Data, 2018 Geotagging Twitter messages is an important tool for event detection and enrichment. Despite the availability of both social media content and user network information, these two features are generally utilized separately in the methodology. In this article, we create a hybrid method that uses Twitter content and network information jointly as model ...
Jordan Bakerman +4 more
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A Method for Spaceborne SAR Geolocation Based on Continuously Moving Geometry
Leida xuebao, 2013 Geolocation is a very important step in Synthetic Aperture Radar (SAR) data processing. The precision of geolocation severely affects the applications of SAR images. This paper analyzes the influences on SAR geolocation caused by the traditional “stop-go”
Qiu Xiao-lan +2 more
doaj +1 more source
Proceedings of the 2017 ACM on Conference on Information and Knowledge Management, 2017 Which venue is a tweet posted from? We referred this as fine-grained geolocation. To solve this problem effectively, we develop novel techniques to exploit each posting user's content history. This is motivated by our finding that most users do not share their visitation history, but have ample content history from tweet posts.
CHONG, Wen-Haw, LIM, Ee Peng
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City-Level IP Geolocation Algorithm Based on PoP Network Topology
IEEE Access, 2018 The existing city-level IP geolocation algorithms determine the location of IP by delay measurement and landmark comparison, and thus, the geolocation ability of these algorithms is affected by the delay precision and the number of landmarks.
Shuodi Zu +4 more
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Early ICESat-2 on-orbit Geolocation Validation Using Ground-Based Corner Cube Retro-Reflectors
Remote Sensing, 2020 The Ice, Cloud and Land Elevation Satellite-2 (ICESat-2), an Earth-observing laser altimetry mission, is currently providing global elevation measurements.
Lori A. Magruder +2 more
doaj +1 more source
MODELING AND SIMULATION OF HIGH RESOLUTION OPTICAL REMOTE SENSING SATELLITE GEOMETRIC CHAIN [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2018 The high resolution satellite with the longer focal length and the larger aperture has been widely used in georeferencing of the observed scene in recent years.
Z. Xia, S. Cheng, Q. Huang, G. Tian
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Geolocation Assessment and Optimization for OMPS Nadir Mapper: Methodology
Remote Sensing, 2022 Onboard both the Suomi National Polar-orbiting Partnership and Joint Polar Satellite System (JPSS) series of satellites, the Ozone Mapping and Profiler Suite Nadir Mapper (OMPS-NM) is a new generation of a total ozone column sensor and is used to ...
Likun Wang +7 more
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Geolocation, ethics, and HIV research [PDF]
Health and Technology, 2021 The HIV epidemic continues to disproportionally affect marginalized populations. Digital tools, including global positioning system and ecologic momentary assessment, have been studied as methods for improving data collection and interventions among HIV-affected communities.
Renee Garett, Sean D. Young
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Towards Real-Time, Country-Level Location Classification of Worldwide Tweets [PDF]
, 2017 In contrast to much previous work that has focused on location classification of tweets restricted to a specific country, here we undertake the task in a broader context by classifying global tweets at the country level, which is so far unexplored in a ...
Liakata, Maria +5 more
core +3 more sources
Earth Polychromatic Imaging Camera Geolocation; Strategies to Reduce Uncertainty
Frontiers in Remote Sensing, 2021 Earth Polychromatic Imaging Camera occupies a unique point of view for an Earth imager by being located approximately 1.5 million km from the planet at Earth-Sun Lagrange point, L1. This creates a number of unique challenges in geolocation, some of which
Karin Blank +5 more
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