scholarly journals Empirical study on the usage of graph query languages in open source Java projects

Author(s):  
Philipp Seifer ◽  
Johannes Härtel ◽  
Martin Leinberger ◽  
Ralf Lämmel ◽  
Steffen Staab
Author(s):  
Muhammad Waseem ◽  
Peng Liang ◽  
Mojtaba Shahin ◽  
Aakash Ahmad ◽  
Ali Rezaei Nassab
Keyword(s):  

2021 ◽  
Author(s):  
Mívian Ferreira ◽  
Diego Golçalves ◽  
Kecia Ferreira ◽  
Mariza Bigonha

Author(s):  
José Ángel Labbad ◽  
Ricardo R. Monascal ◽  
Leonid Tineo

Traditional database systems and languages are very rigid. XML data and query languages are not the exception. Fuzzy set theory is an appropriate tool for solving this problem. In this sense, Fuzzy XQuery was proposed as an extension of the XQUERY standard. This language defines the xs:truth datatype, the xml:truth attribute and allows the definition and use of fuzzy terms in queries. The main goal of this chapter is to show a high coupling implementation of Fuzzy XQuery within eXist-db, an open source XML DBMS. This extension strategy could also be used with other similar tools. This chapter also presents a statistical performance analysis of the extended fuzzy query engine using the XMark benchmark with user defined fuzzy terms. The study presents promising results.


Author(s):  
B. Rossi ◽  
M. Scotto ◽  
A. Sillitti ◽  
G. Succi

The aim of the article is to report the results of a migration to Open Source Software (OSS) in one public administration. The migration focuses on the office automation field and, in particular, on the OpenOffice.org suite. We have analysed the transition to OSS considering qualitative and quantitative data collected with the aid of different tools. All the data have been always considered from the point of view of the different stakeholders involved, IT managers, IT technicians, and users. The results of the project have been largely satisfactory. However the results cannot be generalised due to some constraints, like the environment considered and the parallel use of the old solution. Nevertheless, we think that the data collected can be of valuable aid to managers wishing to evaluate a possible transition to OSS.


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