Results 51 to 60 of about 3,622,651 (382)

Problematic Unordered Queries in Temporal Moment Measurement by Using Natural Language

open access: yesIEEE Access, 2023
This study examines the difficulty in measuring temporal moments by using natural language (TMMNL) in the untrimmed video. The purpose of TMMNL is to use natural language query to find a specific moment within a lengthy video.
Hafiza Sadia Nawaz, Junyu Dong
doaj   +1 more source

Nesting Depth of Operators in Graph Database Queries: Expressiveness Vs. Evaluation Complexity [PDF]

open access: yes, 2016
Designing query languages for graph structured data is an active field of research, where expressiveness and efficient algorithms for query evaluation are conflicting goals.
Praveen, M., Srivathsan, B.
core   +2 more sources

Query Language for Complex Similarity Queries [PDF]

open access: yes, 2012
For complex data types such as multimedia, traditional data management methods are not suitable. Instead of attribute matching approaches, access methods based on object similarity are becoming popular. Recently, this resulted in an intensive research of indexing and searching methods for the similarity-based retrieval. Nowadays, many efficient methods
Pavel Zezula   +2 more
openaire   +3 more sources

Intelligent Search Engine Tool for Querying Database Systems [PDF]

open access: yesInternational Journal of Mathematical, Engineering and Management Sciences
The amount of data being produced and used every day is increasing rapidly. Different operations are performed on the data that is stored in database systems to generate meaningful information.
Gagandeep Kaur   +3 more
doaj   +1 more source

AMaχoS—Abstract Machine for Xcerpt [PDF]

open access: yes, 2006
Web query languages promise convenient and efficient access to Web data such as XML, RDF, or Topic Maps. Xcerpt is one such Web query language with strong emphasis on novel high-level constructs for effective and convenient query authoring ...
Bry, François   +2 more
core   +1 more source

Rancang Bangun Plugin Protégé Menggunakan Ekspresi SPARQL-DL Dengan Masukan Bahasa Alami

open access: yesIJCCS (Indonesian Journal of Computing and Cybernetics Systems), 2017
Semantic web is a technology that allows us to build a knowledge base or ontology for the information of the web page can be understood by computers. One software for building ontology-based semantic web is a protégé. Protege allows developers to develop
Muhammad Fahrurrozi, Azhari SN
doaj   +1 more source

On the expressive power of query languages [PDF]

open access: yesACM Transactions on Information Systems, 1994
Two main topics are addressed. First, an algebraic approach is presented to define a general notion of expressive power. Heterogeneous algebras represent information systems and morphisms represent the correspondences between the instances of databases, the correspondences between answers, and the correspondences between queries.
Wüthrich, Beat, Schäuble, Peter
openaire   +3 more sources

Query Expansion for Effective Retrieval Results of Hindi–English Cross-Lingual IR

open access: yesApplied Artificial Intelligence, 2019
Information retrieval (IR) is the science of identifying documents or sub-documents from a collection of information or database. The collection of information does not necessarily be available in only one language as information does not depend on ...
Ganesh Chandra, Sanjay K. Dwivedi
doaj   +1 more source

A Natural Language Interface to Relational Databases Using an Online Analytic Processing Hypercube

open access: yesAI, 2021
Structured Query Language (SQL) is commonly used in Relational Database Management Systems (RDBMS) and is currently one of the most popular data definition and manipulation languages. Its core functionality is implemented, with only some minor variations,
Fadi H. Hazboun   +2 more
doaj   +1 more source

Solving equations in the relational algebra [PDF]

open access: yes, 2003
Enumerating all solutions of a relational algebra equation is a natural and powerful operation which, when added as a query language primitive to the nested relational algebra, yields a query language for nested relational databases, equivalent to the ...
Biskup, Joachim   +3 more
core   +1 more source

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