Clustering is an effective tool for astronomical spectral analysis, to mine clustering patterns among data. With the implementation of large sky surveys, many methods have been applied tackle spectroscopic and photometric data effectively automatically. Meanwhile, performance under different characteristics varies greatly. aim summarizing algorithms laying foundation further research, this work...

abstract: although all university majors are prominent and the necessity of their presences is of no question, they might not have the same priority basis considering different resources and strategies that could be spotted for a country. this paper focuses on clustering and ranking university majors in iran. to do so, a model is presented to clarify the procedure. eight different criteria are ...