Results 21 to 30 of about 2,483,116 (320)

What is a Lexicographical Database?

open access: yesLexikos, 2013
Fifty years ago, no lexicographer used a database in the work process. Today, almost all dictionary projects incorporate databases. In our opinion, the optimal lexicographical database should be planned in cooperation between a lexicographer and a ...
Henning Bergenholtz
doaj   +1 more source

Mapping RDF Databases to Property Graph Databases

open access: yesIEEE Access, 2020
RDF triplestores and property graph databases are two approaches for data management which are based on modeling, storing and querying graph-like data. In spite of such common principle, they present special features that complicate the task of database ...
Renzo Angles   +2 more
doaj   +1 more source

Object-oriented querying of existing relational databases [PDF]

open access: yes, 1993
In this paper, we present algorithms which allow an object-oriented querying of existing relational databases. Our goal is to provide an improved query interface for relational systems with better query facilities than SQL.
Keim, Daniel A.   +2 more
core   +3 more sources

Semantic Enhanced Text-to-SQL Parsing via Iteratively Learning Schema Linking Graph [PDF]

open access: yesKnowledge Discovery and Data Mining, 2022
The generalizability to new databases is of vital importance to Text-to-SQL systems which aim to parse human utterances into SQL statements. Existing works achieve this goal by leveraging the exact matching method to identify the lexical matching between
Aiwei Liu, Xuming Hu, Li Lin, Lijie Wen
semanticscholar   +1 more source

Improving NoSQL Storage Schema Based on Z-Curve for Spatial Vector Data

open access: yesIEEE Access, 2019
NoSQL database can provide massive, high concurrency, and scalable services for storing different types of data. HBase, a type of NoSQL database, in which columns are grouped into column families, is very suitable for storing semi-structured or ...
Dongfang Zhang   +3 more
doaj   +1 more source

Using Graph Databases [PDF]

open access: yesEPJ Web of Conferences, 2020
Data in High Energy Physics (HEP) usually consist of complext complex data structures stored in relational databases and files with internal schema.
Hřivnáč Julius
doaj   +1 more source

PENGEMBANGAN BASIS DATA SISTEM INFORMASI AKADEMIK PERGURUAN TINGGI BERBASIS SCHEMA MATCHING LINGUISTIC, CONSTRAINT DAN INSTANCE

open access: yesJurnal Saintekom, 2022
Universities currently need information systems to support their activities. Bumigora University is one of the universities that implements information systems such as Siska and E-Learning.
Pahrul Irfan   +3 more
doaj   +1 more source

Living in Parallel Realities: Co-Existing Schema Versions with a Bidirectional Database Evolution Language [PDF]

open access: yesSIGMOD Conference, 2016
We introduce end-to-end support of co-existing schema versions within one database. While it is state of the art to run multiple versions of a continuously developed application concurrently, it is hard to do the same for databases.
K. Herrmann   +4 more
semanticscholar   +1 more source

Relational Database Schema Design for Uncertain Data

open access: yesInternational Conference on Information and Knowledge Management, 2016
We investigate the impact of uncertainty on relational data\-base schema design. Uncertainty is modeled qualitatively by assigning to tuples a degree of possibility with which they occur, and assigning to functional dependencies a degree of certainty ...
S. Link, H. Prade
semanticscholar   +1 more source

Supporting Schema References in Keyword Queries Over Relational Databases

open access: yesIEEE Access, 2023
Relational Keyword Search (R-KwS) systems enable naive/informal users to explore and retrieve information from relational databases without knowing schema details or query languages.
Paulo Martins   +4 more
doaj   +1 more source

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