1 Science and Technology Text Mining : near - Earth Space

Database Tomography is a patented system for analyzing large amounts of textual computerized material. It includes algorithms for extracting multi-word phrase frequencies and performing phrase proximity analyses. This report shows how Database Tomography can be used to derive technical intelligence from the published literature. One potential application of Database Tomography is to obtain the thrusts and interrelationships of a technical field from papers published in the literature within that field. This paper provides an application of Database Tomography to analysis of Near-Earth Space (NES) science and technology, to support the Navy's activities in this region of space. A database of relevant NES articles was analyzed to produce characteristics and key features of the NES field. The recent prolific NES authors, the journals prolific in NES papers, the prolific institutions in NES, the prolific keywords specified by the authors, and the authors whose works are cited most prolifically, as well as the particular papers/ journals/ institutions cited most prolifically, are identified. The pervasive themes of NES are identified through multi-word phrase analyses of the database. A phrase proximity analysis of the database shows the relationships among the pervasive themes, and the relationships between the pervasive themes and sub-themes. (The views in this paper are solely those of the authors and do not represent the views of the Department of the Navy, any of its components, or of RSIS, Inc). REPORT DOCUMENTATION PAGE Form Approved OMB No.