The current implementations of ontology classification procedures use the main memory of the computer for loading and processing ontologies, which soon can become one of the main limiting factors for very large ontologies. We describe a secondary memory implementation of a classification procedure for ELH ontologies using an SQL relational database management system. Although secondary memory h...

Background & Aims: Some of the main questions which can be of importance for those researchers who intend to perform a systematic review in a field of science are: ‘What databases should I use for my review?’; ‘Do all these databases have the same value?’; and ‘Which sourcesretrieved the highest of relevant references?’. The main aim of this work was the identification of the best database for ...

Optimizing the database queries is one of hard research problems. Exhaustive search techniques like dynamic programming is suitable for queries with a few relations, but by increasing the number of relations in query, much use of memory and processing is needed, and the use of these methods is not suitable, so we have to use random and evolutionary methods. The use of evolutionary methods, beca...

Objective: Accurate scientific planning and societal macro policies require reviewing and evaluating research output. Scientometrics offers a valuable approach for assessing the activity of journals that publish a majority of scientific productions. This study aims to analyze the scientific activity of the Iranian Rehabilitation Journal (IRJ) by examining its publication history in the Scopus d...

Disk-based database systems are widely used, offering a great set of functionalities perfectly suited for most kinds of applications. However, when high performance is the priority, such databases are unable to produce satisfactory results. Telecom applications demand high performance especially for their real-time applications. Location management is one of many telecom applications that fall ...

Modern database systems have to process huge amounts of data and should provide results with low latency at the same time. To achieve this, data is nowadays typically hold completely in main memory, to benefit of its high bandwidth and low access latency that could never be reached with disks. Current in-memory databases are usually columnstores that exchange columns or vectors between operator...