Besides ISI? Web？ Yes? Knowledge () is Thomson? The information retrieval platform developed by scientific companies allows users to retrieve literature information about natural science, social science, art and humanities, including international journals, free open resources, books, patents, conference records, network resources and so on. , and can retrieve multiple databases (including professional databases and multidisciplinary comprehensive databases) simultaneously in a single database or across databases, and can use analytical tools and bibliographic information management software.