The characteristics of automatic text retrieval systems are briefly described, and the available experimental evidence comparing manual with automatic retrieval is reviewed. Several automatic text analysis and indexing models are then examined, and a basic automatic indexing process is proposed. There is no evidence that an intellectual content analysis performed by human subject experts produces better retrieval results than comparable automatic text processing systems.
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Another look at automatic text-retrieval systems
Evidence from available studies comparing manual and automatic text-retrieval systems does not support the conclusion that intellectual content analysis produces better results than comparable automatic systems.
Automatic Text Categorization and Its Application to Text Retrieval
We develop an automatic text categorization approach and investigate its application to text retrieval. The categorization approach is derived from a combination of a learning paradigm known as instance-based learning and an advanced document retrieval ...