Results 11 to 20 of about 2,437 (201)

A Query Understanding Framework for Earth Data Discovery

open access: yesApplied Sciences, 2020
One longstanding complication with Earth data discovery involves understanding a user’s search intent from the input query. Most of the geospatial data portals use keyword-based match to search data.
Yun Li   +4 more
doaj   +1 more source

An Efficient Top- $K$ Spatial Keyword Typicality and Semantic Query

open access: yesIEEE Access, 2019
Existing spatial keyword query processing models mainly consider the spatial proximity and text relevancy between spatial objects and spatial keyword query, which usually makes the top-k answer objects are similar to each other.
Xiaoyan Zhang   +4 more
doaj   +1 more source

Temporally relevant parallel top-k spatial keyword search

open access: yesJournal of Spatial Information Science, 2022
New spatio-textual indexing methods are needed to support efficient search and update of the massive amounts of spatially referenced text being generated.
Suprio Ray, Bradford Nickerson
doaj   +1 more source

THE SEMANTIC RETRIEVAL OF SPATIAL DATA SERVICE BASED ON ONTOLOGY IN SIG [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2012
The research of SIG (Spatial Information Grid) mainly solves the problem of how to connect different computing resources, so that users can use all the resources in the Grid transparently and seamlessly.
S. Sun, S. Sun, D. Liu, G. Li, W. Yu
doaj   +1 more source

SMPKR: Search Engine for Internet of Things

open access: yesIEEE Access, 2019
The Internet of Things (IoT) has become the infrastructure to widely support ubiquitous applications. Due to the highly dynamic context setting, IoT search engines have attracted increasing attention from both industrial and academic field to crawl and ...
Jine Tang   +3 more
doaj   +1 more source

Ecosystem Services Research Trends: A Bibliometric Analysis from 2000–2020

open access: yesEcologies, 2021
The study of ecosystem services (ES) is becoming increasingly popular, as it plays an important role in human wellbeing, economic growth, and livelihoods.
Ruchira Gangahagedara   +4 more
doaj   +1 more source

cBiK: A Space-Efficient Data Structure for Spatial Keyword Queries

open access: yesIEEE Access, 2020
A vast amount of geo-referenced data is being generated by mobile devices and other sensors increasing the importance of spatio-textual analyses on such data.
Carlos E. Sanjuan-Contreras   +3 more
doaj   +1 more source

Spatial Keyword Query of Region-Of-Interest Based on the Distributed Representation of Point-Of-Interest

open access: yesISPRS International Journal of Geo-Information, 2019
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), which
Xiangdian Zhu   +3 more
doaj   +1 more source

Genomes as geography: using GIS technology to build interactive genome feature maps

open access: yesBMC Bioinformatics, 2006
Background Many commonly used genome browsers display sequence annotations and related attributes as horizontal data tracks that can be toggled on and off according to user preferences.
Beard M Kate   +3 more
doaj   +1 more source

A novel multi-objective SKG-skyline algorithm integrating spatial keyword data transformation

open access: yesComplex & Intelligent Systems
The spatial keyword skyline query effectively addresses user preferences, particularly for location-based service applications. However, existing approaches primarily focus on single-object queries and remain unsuitable for group-based computations.
Xiaowei Cui   +5 more
doaj   +1 more source

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