EntityQ1638872· pop 10· linked from 66 articlesdocument retrievalSign in to savematching of some stated user query against a set of free-text recordsConnectionsQ180686Entityinverted indexEntityfull-text searchEntityInternetEntitystatisticsEntitypersonal computerEntitydigital object identifierEntitysearch engineEntitynatural language processingEntitynatural languageEntityinferenceEntityarticleEntityQ229883Entityexpert systemEntityMedical Subject HeadingsEntityPageRankEntityinformation retrievalEntityknowledge baseEntityQ22908627Entitylist of search enginesEntityCategoriesElectronic documentsInformation retrieval genresSearch engine softwareSubstring indices