Symmetric Non-negative Matrix Factorization for Analyzing the Scientific Production on Day Surgery

Operative procedures performed in day surgery are an alternative treatment regimen to ordinary hospitalization, characterized by surgeries that can be performed within the same day, without the need for postoperative observation. These practices are part of a broader process of hospital optimization that has affected the national and international context. Hence, the interest of the work is to identify themes from scientific production through a symmetrical matrix reduction technique, the symmetric non-negative matrix factorization, according to the creation of semantic clusters. The aim is to perform a bibliometric analysis of international and Italian production on day surgery highlighting similarities and differences. In particular, the international production is focused on hospital management and pre- and postoperative conditions for the patient, while the Italian production, based on the treatment of procedures performed in day surgery, especially on older adults' patients.