Relational similarity-based model of data part 1: foundations and query systems
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F17%3A73581478" target="_blank" >RIV/61989592:15310/17:73581478 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1080/03081079.2017.1357550" target="_blank" >http://dx.doi.org/10.1080/03081079.2017.1357550</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1080/03081079.2017.1357550" target="_blank" >10.1080/03081079.2017.1357550</a>
Alternative languages
Result language
angličtina
Original language name
Relational similarity-based model of data part 1: foundations and query systems
Original language description
We present a general rank-aware model of data which supports handling of similarity in relational databases. The model is based on the assumption that in many cases it is desirable to replace equalities on values in data tables by similarity relations expressing degrees to which the values are similar. In this context, we study various phenomena which emerge in the model, including similarity-based queries and similarity-based data dependencies. Central notion in our model is that of a ranked data table over domains with similarities which is our counterpart to the notion of relation on relation scheme from the classical relational model. We present fundamentals of the formal model and two equivalent query systems which are analogues of the classical relational algebra and domain relational calculus with range declarations. In the sequel to this paper, we deal with similarity-based dependencies.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10201 - Computer sciences, information science, bioinformathics (hardware development to be 2.2, social aspect to be 5.8)
Result continuities
Project
<a href="/en/project/EE2.3.20.0059" target="_blank" >EE2.3.20.0059: Reintegration of Czech Scientist and Creation of Top Level Team in Information Sciences</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2017
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
International Journal of General Systems
ISSN
0308-1079
e-ISSN
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Volume of the periodical
46
Issue of the periodical within the volume
7
Country of publishing house
GB - UNITED KINGDOM
Number of pages
81
Pages from-to
671-751
UT code for WoS article
000409551400001
EID of the result in the Scopus database
2-s2.0-85026918653