Development of Automatic Keyword Searching System from Databases on a Network

摘要

This paper reports systems that automatically retrieve information from daily changing recent information data- bases. It reports three types of systems: (1) a system that accesses the existing database automatically' (2) a system that keeps individual search keywords in the database, and (3) a combined system of (1) and (2). We have implemented these systems on a UNIX computer system and have con- firmed their operation.