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Efficient indexing and querying over syntactically annotated trees
2012
Proceedings of the VLDB Endowment
Natural language text corpora are often available as sets of syntactically parsed trees. A wide range of expressive tree queries are possible over such parsed trees that open a new avenue in searching over natural language text. They not only allow for querying roles and relationships within sentences, but also improve search effectiveness compared to flat keyword queries. One major drawback of current systems supporting querying over parsed text is the performance of evaluating queries over
doi:10.14778/2350229.2350249
fatcat:oeqxxnvtpff6nihqaboaijszha