This chapter addresses library research services at the Universitat Politècnica de Catalunya · BarcelonaTech (UPC), an institution engaged with science and technology that clearly emerges as a university. Due to attributes of UPC, its library, publications, archives differ from traditional libraries have been transformed over lifetime offer researchers fit their current future needs. Librarians...

Research in query difficulty deals with the task of determining how well or poorly a query is likely to perform given a search system and a collection of documents. If the performance of queries can be established in advance of or during the retrieval stage, specific steps can be taken to improve retrieval. In this report, a categorization of existing algorithms is introduced and various algori...