Results 11 to 20 of about 663,961 (238)

An Approach to Database Preference Queries Based on an Outranking Relation [PDF]

open access: goldInternational Journal of Computational Intelligence Systems, 2012
In this paper, we describe an approach to database preference queries based on the notion of outranking, suited to the situation where preferences on different attributes are not commensurable.
Patrick Bosc   +2 more
doaj   +2 more sources

LocText: relation extraction of protein localizations to assist database curation [PDF]

open access: goldBMC Bioinformatics, 2018
Background The subcellular localization of a protein is an important aspect of its function. However, the experimental annotation of locations is not even complete for well-studied model organisms.
Juan Miguel Cejuela   +10 more
doaj   +2 more sources

Interpretation of the glacial lake outburst floods database in relation to climatic conditions in different world regions

open access: diamondActa Universitatis Carolinae Geographica
This article investigates the response of glacial lake outburst floods (GLOFs) to climatic conditions since the beginning of the 20th century and during individual seasons based on the data from the publicly available online database recording past GLOFs
Matouš Kovanda
doaj   +2 more sources

Performance Characterization of Image Feature Detectors in Relation to the Scene Content Utilizing a Large Image Database

open access: goldIEEE Access, 2018
Selecting the most suitable local invariant feature detector for a particular application has rendered the task of evaluating feature detectors a critical issue in vision research. Although the literature, offers a variety of comparison works focusing on
Bruno Ferrarini   +4 more
doaj   +2 more sources

Computing the inverse of cardinal direction relations between regions

open access: yesJournal of Intelligent Systems, 2022
The inversion of directions is an important operation with directions which plays an important role in qualitative spatial reasoning and spatial queries. In this work, we address on the inversion operation of the basic cardinal direction relations in the
Wang Miao   +5 more
doaj   +1 more source

Research and Implementation of Document-Relational Data Query Execution Tech-nology

open access: yesJisuanji kexue yu tansuo, 2020
With the arrival of the era of big data, Internet applications have produced abundant data types. Integ-rating storage, query and organization of data with various structures is a research hotspot of large data management system.
MA Zhicheng, YUAN Haifeng, GU Yang, LIU Yaru, ZHANG Xiao
doaj   +1 more source

Representation and Reasoning for Model of 3DR46 in Complex 3D Space

open access: yesJisuanji kexue yu tansuo, 2020
To remedy the deficiency of the existing methods on 3D direction relations, the 3DR46 direction relations model is proposed. The model can represent and distinguish 246 complex 3D direction relations. To process the dynamic of 3D direction relations, the
HAO Xiaohong, LI Song, HAO Zhongxiao
doaj   +1 more source

Belnap-Dunn logic and query answering in inconsistent databases with null values [PDF]

open access: yesScientific Annals of Computer Science vol. 33(2):159-192 (2023), 2023
This paper concerns an expansion of first-order Belnap-Dunn logic, named $\mathrm{BD}^{\supset,\mathsf{F}}$, and an application of this logic in the area of relational database theory. The notion of a relational database, the notion of a query applicable to a relational database, and several notions of an answer to a query with respect to a relational ...
arxiv   +1 more source

Uniform Reliability of Self-Join-Free Conjunctive Queries [PDF]

open access: yesLogical Methods in Computer Science, 2022
The reliability of a Boolean Conjunctive Query (CQ) over a tuple-independent probabilistic database is the probability that the CQ is satisfied when the tuples of the database are sampled one by one, independently, with their associated probability.
Antoine Amarilli, Benny Kimelfeld
doaj   +1 more source

Fatigue database of complex metallic alloys

open access: yesScientific Data, 2023
The past few decades have witnessed rapid progresses in the research and development of complex metallic alloys such as metallic glasses and multi-principal element alloys, which offer new solutions to tackle engineering problems of materials such as the
Zian Zhang, Haoxuan Tang, Zhiping Xu
doaj   +1 more source

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