Results 1 to 10 of about 9,614,791 (381)
Database Theory + X: Database Visualization
arXiv.orgWe draw a connection between data modeling and visualization, namely that a visualization specification defines a mapping from database constraints to visual representations of those constraints. Using this formalism, we show how many visualization design decisions are, in fact, data modeling choices and extend data visualization from single-dataset ...
Eugene Wu
openaire +3 more sources
Assumptions in relational database theory
Proceedings of the 1st ACM SIGACT-SIGMOD symposium on Principles of database systems - PODS '82, 1982 Many results in relational database theory on the structure of dependencies, query languages, and databases in general have now been established. However, neither (a) the reliance of these results on various assumptions, nor (b) the desirability or reasonableness of these assumptions themselves have been closely examined.
ATZENI, Paolo, PARKER DS
openaire +3 more sources
ACM SIGACT News, 1989 Complex object databases have been proposed as a significant extension of relational databases, with many practical applications. In the second database theory column, we present languages for the manipulation of such databases: a many-sorted algebra and an equivalent calculus.
P. Kanellakis, S. Abiteboul
openaire +2 more sources
ACM SIGCSE Bulletin, 1996 This paper describes the use of cooperative group learning concepts in support of an undergraduate database management course that emphasizes the theoretical and practical aspects of database application development. The course project is divided into three main phases, involving requirements analysis and conceptual design, relational database mapping ...
Suzanne W. Dietrich, Susan D. Urban
openaire +2 more sources
Ethnography of NEET’s life style in Tehran [PDF]
Taḥqīqāt-i Farhangī-i Īrān, 2022 NEETs as those who neither study nor have a job or profession, have been the topic in statistical and social discussions of countries in recent years, in which, Iran's contribution to this concept is close to zero.
A. Naderi
doaj +1 more source
Conceptualization of the Social banking Model in Sepeh Bank Ecosystem: A Grounded theory with Constructivism Approach [PDF]
پژوهشهای مدیریت عمومی, 2023 Extended Abstract Abstract The purpose of the research is to conceptualize social banking in the Sepeh Bank ecosystem using the qualitative method of the grounded theory of charms constructivism.
Saeed Houshyar +2 more
doaj +1 more source
Applications of Information Inequalities to Database Theory Problems [PDF]
Logic in Computer Science, 2023 The paper describes several applications of information inequalities to problems in database theory. The problems discussed include: upper bounds of a query’s output, worst-case optimal join algorithms, the query domination problem, and the implication ...
Dan Suciu
semanticscholar +1 more source
Bibliometric Analysis And Visualization Of Funding Social Housing: Connection Of Sociological And Economic Research [PDF]
SocioEconomic Challenges, 2021 This paper deals with bibliometric analysis and visualization of theory development of funding social housing considering connection of sociological and economic research.
Svitlana Ianchuk
doaj +1 more source
Network Theory and Switching Behaviors: A User Guide for Analyzing Electronic Records Databases
Future Internet, 2021 As part of studies that employ health electronic records databases, this paper advocates the employment of graph theory for investigating drug-switching behaviors. Unlike the shared approach in this field (comparing groups that have switched with control
Giorgio Gronchi +2 more
doaj +1 more source
An extremal problem on trees and database theory [PDF]
Discrete Mathematics & Theoretical Computer Science, 2005 We consider an extremal problem on labelled directed trees and applications to database theory. Among others, we will show explicit keysystems on an underlying set of size $n$, that cannot be represented by a database of less than $2^{n(1-c\cdot \log ...
Gyula O.H. Katona, Krisztián Tichler
doaj +1 more source