Preface to the CLTM-CLTD 2022 Special Issue

This preface opens the special issue on invited papers related to the 2023 edition of the MSc. and PhD. thesis contests organized by CLEI, the Latin American Center for Computing Studies. One of the main objectives of CLEI is furthering the scientific development of all Computing areas in Latin America. To recognize such developments, as well as the achievements of the graduate programs in the region, and promote the development of new programs, CLEI organizes yearly since 1993 the LatinAmerican Master Thesis Contest (CLTM), and since 2016 the Doctoral Thesis Contest (CLTD). Both events take place jointly with the Latin American Computing Conference (also known as CLEI conference) . In the 2022 edition, the conference took place in Armenia, Quindio, Colombia; both the MSc. and PhD. contests received a number of high quality submissions, leading to very interesting presentations during the conference and to excellent prizes. After the conference, the authors of the best works (receiving prizes as well as runner-ups) were invited to submit original works, not already published, to the CLEIej journal. These submissions were evaluated by independent reviewers, following the usual review process of the journal. As a result of this selection process, we are proud to present the current Special Issue.