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Multi-source meteorological data assessment on daily runoff simulation in the upper reaches of the Hei River, Northwest China
Published 2025-02-01“…Furthermore, a comparative assessment of simulation results based on multi-source meteorological data demonstrates that daily runoff simulations using meteorological station observation data yield the best results, indicating the highest applicability of this data source. …”
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Utilization of radiometric data for mapping primary and secondary sources of gamma radiation and radon/thoron release potentials in Ireland
Published 2024-09-01“…Additionally, we highlight the critical need to monitor thoron alongside radon in indoor surveys, as thoron’s shorter half-life and higher energy levels may pose a greater health risk.MethodsWe utilized Tellus radiometric survey data and indoor radon measurement records to investigate the spatial correlation between elevated indoor radon activity and anomalies in radioelement concentrations. …”
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Access control relationship prediction method based on GNN dual source learning
Published 2022-10-01“…With the rapid development and wide application of big data technology, users’ unauthorized access to resources becomes one of the main problems that restrict the secure sharing and controlled access to big data resources.The ReBAC (Relationship-Based Access Control) model uses the relationship between entities to formulate access control rules, which enhances the logical expression of policies and realizes dynamic access control.However, It still faces the problems of missing entity relationship data and complex relationship paths of rules.To overcome these problems, a link prediction model LPMDLG based on GNN dual-source learning was proposed to transform the big data entity-relationship prediction problem into a link prediction problem with directed multiple graphs.A topology learning method based on directed enclosing subgraphs was designed in this modeled.And a directed dual-radius node labeling algorithm was proposed to learn the topological structure features of nodes and subgraphs from entity relationship graphs through three segments, including directed enclosing subgraph extraction, subgraph node labeling calculation and topological structure feature learning.A node embedding feature learning method based on directed neighbor subgraph was proposed, which incorporated elements such as attention coefficients and relationship types, and learned its node embedding features through the sessions of directed neighbor subgraph extraction and node embedding feature learning.A two-source fusion scoring network was designed to jointly calculate the edge scores by topology and node embedding to obtain the link prediction results of entity-relationship graphs.The experiment results of link prediction show that the proposed model obtains better prediction results under the evaluation metrics of AUC-PR, MRR and Hits@N compared with the baseline models such as R-GCN, SEAL, GraIL and TACT.The ablation experiment results illustrate that the model’s dual-source learning scheme outperforms the link prediction effect of a single scheme.The rule matching experiment results verify that the model achieves automatic authorization of some entities and compression of the relational path of rules.The model effectively improves the effect of link prediction and it can meet the demand of big data access control relationship prediction.…”
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Optimalisasi media sosial tiktok live sebagai media komunikasi persuasif pada fashion untuk menghasilkan omzet sesuai target (studi kasus pada Oemah Gamis)
Published 2024-03-01“…This research uses in-depth interviews with sources as live hosts at Oemah Gamis. Data validity in this study uses source triangulation. …”
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Identification and grading method of HCAs in gas pipelines based on multisource data fusion
Published 2024-11-01“…Nevertheless, meeting the requirements for data diversity in identifying and grading HCAs in gas pipelines using only one data source remains a challenge. …”
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An evidence synthesis approach for combining different data sources illustrated using entomological efficacy of insecticides for indoor residual spraying.
Published 2022-01-01“…Bayesian evidence synthesis is a framework that explicitly combines data sources to enable the joint estimation of parameters and their uncertainties. …”
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Urban traffic flow prediction based on the multisource heterogeneous spatio-temporal data fusion
Published 2023-07-01“…The problem of traffic flow forecasting has multi-source heterogeneity.The traffic flow in the future is not only related to the flow at the previous moment, but also affected by heterogeneous spatio-temporal data such as the relationship between urban regions, weather conditions and POI (point of interest).To solve this problem, a traffic flow prediction model based on multi-source heterogeneous spatio-temporal data fusion was proposed, which was called MHFSTNet (multi-source heterogeneous fusion spatio-temporal network).Firstly, this model used clustering methods to obtain different traffic patterns in urban areas, and utilized various methods such as concatenation, weight addition, and attention mechanism to integrate spatio-temporal data of multiple modalities, including traffic flow, location relationships between urban areas, weather, POI and the time of day.Deep learning methods were used to uniformly model heterogeneous data and predict traffic flow in the future.Experiments were conducted on three real-world traffic datasets, TaxiBJ, TaxiNYC and BikeNYC datasets.The results showed that MHF-STNet achieved the best performance compared with some classic traffic flow prediction models, which verified the effectiveness of MHF-STNet for unified modeling of heterogeneous spatio-temporal data.…”
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Manajemen media sosial (studi kasus pada akun Instagram @kemendag)
Published 2024-03-01“…The data validity technique used is source triangulation, to compare the research data found. …”
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Urban-Scale Rooftop Photovoltaic Potential Estimation Using Open-Source Software and Public GIS Datasets
Published 2024-12-01“…This paper aims to effectively estimate urban-scale rooftop photovoltaic potential using strictly open-source software and publicly available GIS data. This approach is often neglected; however, its importance is significant regarding technology transfer and general commercial or academic ease of use. …”
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Selection of reference genes in Thermothelomyces fergusii: insights from genomic and expression analysis in response to different carbon sources
Published 2025-07-01“…Abstract Background RNA expression analysis using reverse transcription qPCR requires reference genes for accurate data normalization. However, some reference genes can show significant variability in specific biological samples, raising concerns about the reliability of this method. …”
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Measurement issues in conflict event data: Addressing some misconceptions about what drives differences between human-coded event datasets
Published 2025-07-01“…In this article, we investigate their claims about what drives differences between the two researcher led projects the Uppsala Conflict Data Program (UCDP) and ACLED. In the process, we address some general issues that arise in event data collection, including the importance of stable definitions, how demands on sourcing varies with the type of data collected, and how strategies for dealing with uncertainty and ambiguity impact the data. …”
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Source rock
Published 2014-03-01“…The major goal of this study is to evaluate the source rock by using different techniques as Rock-Eval pyrolysis, Vitrinite reflectance (%Ro), and well log data of some Cretaceous sequences including Abu Roash (E, F and G members), Kharita and Betty formations. …”
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Corona-Covid-19 virus and its impact on the use of electronic information sources : a field study to identify the extent to which students in the various educational stages use ele...
Published 2021-06-01“…The study aims to identify the extent of the impact of the spread of thecoronavirus Covid-19 on the use of electronic sources by beneficiaries at differenteducational stages to meet their knowledge and information needs for distancelearning in some countries of the world, namely Egypt- Qatar – USA . …”
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Integration of well log analysis data with geochemical data to evaluate possible source rock. Case study from GM-ALEF-1 well, Ras Ghara oil Field, Gulf of Suez-Egypt
Published 2018-12-01“…It is marginally mature to mature source rock. The expected generated hydrocarbon is fair oil source with some gas. …”
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Ambient PM2.5 Temporal Variation and Source Apportionment in Mbarara, Uganda
Published 2024-01-01“…The African continent experiences some of the worst ambient air pollution in the world, yet there are relatively little African data characterizing ambient pollutant levels and source admixtures. …”
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