Learning Information Extraction Rules for Semi-Structured and Free Text
Machine Learning - Special issue on natural language learning
Information extraction from biomedical literature: methodology, evaluation and an application
CIKM '03 Proceedings of the twelfth international conference on Information and knowledge management
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Keyword-based retrieval matches search terms and documents via term co-occurrence. Such an approach does not allow matching based on the specific plant characteristic descriptions that are often used in botanical text retrieval. This study applies information extraction techniques to automatically extract plant characteristic information from text and allows users to search using such information in combination with keywords. An evaluation experiment was conducted using actual users. The results indicate that this approach enhances task-based retrieval performance.