Home › Categories › Technology› Query-by-Example

Query-by-Example.pdf

paper-44.pdf
Preview of Query-by-Example
🔗 Source: ceur-ws.org
📊 Size: 380 KB
📄 Pages: 3 pages
⬇️ Downloads: 980

Summary

Query-by-example (QBE) in ontology-based data access is studied, where a query complying with specified examples is sought. The problem QBE(L, Q) is formalized for ontology language L and query language Q, with input consisting of a knowledge base, sets of positive and negative examples, and a signature. The goal is to determine if a query exists that satisfies the examples. Characterizations, algorithms, and complexity bounds are provided for QBE(L, Q) with L being expressive Horn DL and Q being conjunctive or union of conjunctive queries. Decision procedures and matching lower bounds are established, with complexities ranging from ExpTime to 2-ExpTime, depending on the specific case. The size of witness queries is also investigated, showing they can be double exponentially large.

Download File

Description

Query-by-example (QBE) in ontology-based data access is studied, where a query complying with specified examples is sought.

Technical Information

  • File Format: PDF
  • File Size: 380 KB
  • Pages: 3
  • Language: EN
  • Total Downloads: 980
  • Last Updated: 1 week ago

Document Overview

This PDF document about Query-by-Example provides comprehensive information and guidance. Whether you're a beginner or advanced user, this resource offers valuable insights into Query-by-Example.

Related Topics

If you're interested in Query-by-Example, you might also want to explore:

Query-by-Example guideQuery-by-Example tutorial

Related Categories

Business & Finance
41204 documents
Education & Learning
22711 documents
Health & Wellness
8956 documents

Related Documents

Preview of Environmental Query
PDF file

Environmental Query

1.21 MBEN10 pages
Eco Assessments queries whether environmental authorization is required for constructing three residential houses on Holding 70 of Protea Ridge...
Download
Preview of Post Query Offset
PDF file

Post Query Offset

76 KBEN2 pages
Submit an aggregate query job with the offset parameter to retrieve records created or updated between the previous query completion time and the...
Download
Preview of Query Credit Transactions
PDF file

Query Credit Transactions

32 KBEN1 page
Type FGITRND in Banner, enter Chart code, year, Fund code, and Organization code, then click Next Block and Execute Query to view credit card...
Download
Preview of Query-Adaptive Summarization
PDF file

Query-Adaptive Summarization

4.77 MBArun Balajee Vasudevan[1][2], Michael Gygli[1][2][3], Anna Volokitin[2], Luc Van Gool[2][4]-1.2exEN10 pages
Query-adaptive video summarization is posed as a video frame subset selection problem to optimize for summaries that are diverse, representative, and...
Download
Preview of Translating SQL into the Relational Algebra
PDF file

Translating SQL into the Relational Algebra

263 KBEN19 pages
Translating SQL into the Relational Algebra by Jan Van den Bussche and Stijn Vansummeren requires background knowledge of the relational data model,...
Download

Download Query-by-Example eBooks for free and learn more about Query-by-Example. These books contain exercises and tutorials to improve your practical skills, at all levels!

Not satisfied with this document? We have related documents to Query-by-Example, try searching with similar keywords: Database Query Example For Atm Management System, Dax Query Example, Hbase Query Example, Hibernate Query By Example Tutorial, Mdx Query Example, Odata Query Example, peoplesoft connected query example, Query-by-Example

You can download PDF versions of the user's guide, manuals and ebooks about Query-by-Example, you can also find and download for free A free online manual (notices) with beginner and intermediate, Downloads Documentation, You can download PDF files (or DOC and PPT) about Query-by-Example for free, but please respect copyrighted ebooks.