TY - JOUR AU - Schwarz, Christoph AB - Problems encountered under the syntactic analysis of free text documents are discussed. As these problems are of general interest in nonautomatic or automatic syntactic indexing or search systems, these problems are presented in detail. The system called COPSY (context operator syntax), which uses natural language processing techniques during fully automatic syntactic analysis (indexing and search) of free text documents is described. Applications under real world conditions are mentioned as well as evaluation and technical aspects. Further developments in the field of thesaurus building and full‐text analysis using the linguistic algorithms of the syntactic retrieval system are outlined. COPSY was developed as part of a text processing project at Siemens, called TINA (Text‐In halts‐Analyse: text content analysis). Software from TINA is actually being tested by the U.S. Department of Commerce for patent search and indexing. © 1990 John Wiley & Sons, Inc. TI - Automatic syntactic analysis of free text JF - Journal of the Association for Information Science and Technology DO - 10.1002/(SICI)1097-4571(199009)41:6<408::AID-ASI2>3.0.CO;2-S DA - 1990-09-01 UR - https://www.deepdyve.com/lp/wiley/automatic-syntactic-analysis-of-free-text-8gf5vYocsP SP - 408 EP - 417 VL - 41 IS - 6 DP - DeepDyve ER -