Results 81 to 90 of about 24,669 (218)

Impact of Land Use Change and Drought on the Net Emissions of Carbon Dioxide and Methane From Tropical Peatlands in Southeast Asia

open access: yesAGU Advances, Volume 6, Issue 6, December 2025.
Abstract Peat decomposition is progressing in Southeast Asia due to lowered groundwater levels (GWL) caused by drainage. Additionally, droughts during El Niño events significantly lower the GWL, the main environmental factor that controls greenhouse gas (GHG; carbon dioxide (CO2) and methane) emissions in peatlands.
Takashi Hirano   +19 more
wiley   +1 more source

Distributed Processing of Generalized Graph-Pattern Queries in SPARQL 1.1 [PDF]

open access: yes, 2016
We propose an efficient and scalable architecture for processing generalized graph-pattern queries as they are specified by the current W3C recommendation of the SPARQL 1.1 "Query Language" component.
Gurajada, Sairam, Theobald, Martin
core   +1 more source

Hybrid Vision Transformer With Convolutional Blocks Approach for Subsurface Electrical Resistivity Tomography Inversion

open access: yesJournal of Geophysical Research: Machine Learning and Computation, Volume 2, Issue 4, December 2025.
Abstract Electrical Resistivity Tomography (ERT) is widely used for subsurface imaging. Despite recent advancements in machine learning based ERT inversion using conventional deep learning models such as CNN and UNet, accurately delineating resistivity profiles of natural and artificial subsurface anomalies remains challenging.
Huichao Yin   +6 more
wiley   +1 more source

A linked data-driven & service-oriented architecture for sharing educational resources [PDF]

open access: yes, 2011
The two fundamental aims of managing educational resources are to enable resources to be reusable and interoperable and to enable Web-scale sharing of resources across learning communities.
Dietze, Stefan   +8 more
core  

An introduction to Graph Data Management

open access: yes, 2017
A graph database is a database where the data structures for the schema and/or instances are modeled as a (labeled)(directed) graph or generalizations of it, and where querying is expressed by graph-oriented operations and type constructors.
A Dries   +80 more
core   +1 more source

Design and implementation of a filter engine for semantic web documents [PDF]

open access: yes, 2005
This report describes our project that addresses the challenge of changes in the semantic web. Some studies have already been done for the so-called adaptive semantic web, such as applying inferring rules.
Hinze, Annika, Kozuka, Takanori
core   +1 more source

XQOWL: An Extension of XQuery for OWL Querying and Reasoning

open access: yes, 2015
One of the main aims of the so-called Web of Data is to be able to handle heterogeneous resources where data can be expressed in either XML or RDF. The design of programming languages able to handle both XML and RDF data is a key target in this context ...
Almendros-Jiménez, Jesús M.
core   +2 more sources

View Selection in Semantic Web Databases [PDF]

open access: yes, 2011
We consider the setting of a Semantic Web database, containing both explicit data encoded in RDF triples, and implicit data, implied by the RDF semantics. Based on a query workload, we address the problem of selecting a set of views to be materialized in
François Goasdoué   +7 more
core   +10 more sources

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