Results 81 to 90 of about 3,622,651 (382)

Implementing GraphQL as a Query Language for Deductive Databases in SWI-Prolog Using DCGs, Quasi Quotations, and Dicts [PDF]

open access: yesElectronic Proceedings in Theoretical Computer Science, 2017
The methods to access large relational databases in a distributed system are well established: the relational query language SQL often serves as a language for data access and manipulation, and in addition public interfaces are exposed using ...
Falco Nogatz, Dietmar Seipel
doaj   +1 more source

SGPT: A Generative Approach for SPARQL Query Generation From Natural Language Questions

open access: yesIEEE Access, 2022
SPARQL query generation from natural language questions is complex because it requires an understanding of both the question and underlying knowledge graph (KG) patterns.
Md Rashad Al Hasan Rony   +4 more
doaj   +1 more source

Ontology-based data access with databases: a short course [PDF]

open access: yes, 2013
Ontology-based data access (OBDA) is regarded as a key ingredient of the new generation of information systems. In the OBDA paradigm, an ontology defines a high-level global schema of (already existing) data sources and provides a vocabulary for user ...
A. Artale   +23 more
core   +3 more sources

Constraint Databases, Queries, and Query Languages [PDF]

open access: yes, 2000
We formally define the constraint database model, the concept of query in this model, and the basic constraint query languages provided by the relational calculus, the relational algebra, and DATALOG. We show how a computationally complete constraint query language can be obtained by augmenting the constraint relational calculus with basic programming ...
openaire   +3 more sources

Exploring the role of cyclin D1 in the pathogenesis of multiple myeloma beyond cell cycle regulation

open access: yesMolecular Oncology, EarlyView.
Cyclin D1 overexpression altered the cell adhesion pathway, while cyclin D2 upregulation had less impact on pathway enrichment analysis. Multiple myeloma (MM) patients with cyclin D1 overexpression showed reduced CD56 expression and increased circulating tumor cells (CTC) levels, suggesting that cyclin D1 may contribute to MM cell dissemination ...
Ignacio J. Cardona‐Benavides   +13 more
wiley   +1 more source

Development of a relational database management system

open access: yesJournal of Computer Science and Technology, 2003
The studies of Relational Data Base Management Systems and Databases constitute nowadays a main tren of investigation in large businesses and universities of the entire world.
Anabel Natalia Ruiz   +2 more
doaj  

Distributed XQuery [PDF]

open access: yes, 2004
XQuery is increasingly being used for ad-hoc integration of heterogeneous data sources that are logically mapped to XML. For example, scientists need to query multiple scientific databases, which are distributed over a large geographic area, and it is ...
Brinkley, James F   +3 more
core   +1 more source

Human Query Language

open access: yesCiencia y Tecnología, 2012
El presente trabajo describira el desarrollo de una herramienta que aprovecha el procesamiento del lenguaje natural, a efectos de alcanzar una mejora en la comunicacion usuario - maquina. El proyecto, que cuenta con una interfaz web y para smartphones (telefonos inteligentes), sera capaz de interpretar consultas ingresadas por teclado o por voz, y a ...
Claudio Zamoszczyk   +3 more
openaire   +4 more sources

Decrypting cancer's spatial code: from single cells to tissue niches

open access: yesMolecular Oncology, EarlyView.
Spatial transcriptomics maps gene activity across tissues, offering powerful insights into how cancer cells are organised, switch states and interact with their surroundings. This review outlines emerging computational, artificial intelligence (AI) and geospatial approaches to define cell states, uncover tumour niches and integrate spatial data with ...
Cenk Celik   +4 more
wiley   +1 more source

PQL: KONVERSI SINTAKS SQL MENJADI SINTAKS PQL

open access: yesJurnal Informatika, 2007
The aim of our research presented was to evaluate the semantic coverability of PQL (Public Query Language) as a query language, compared to SQL (Structured Query Language).
Benhard Sitohang   +1 more
doaj  

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