Basic HTML version of Foils prepared 7 October 97

Foil 8 Features of DR-LINK High Level Natural Language Database Interface

From Second Part of RDBMS Discussion ARL Database Tutorial -- February 98. by Gang Cheng Marek Podgorny Chao-Wei Ou


1 Accepts lengthy ambiguous complex Natural Language Queries
2 Translates Natural Language queries into precise Boolean representations of the user's implied requirements for relevance of a document to query
3 Produces summary-level semantic SFC (Subject Field Codes) vector representations of query and documents for quick filtering of large databases
4 Catures Text Structure dimensions of time, source, state of completion, credibility, definiteness, intentionality and causality
5 Fulfills Proper Noun requirements of queries by:
  • Precise matching of focused Proper Noun requests
  • Accurate Proper Noun category-level matching
  • Expansion of categories to constituent members
6 Provides both high recall and high precision via controlled expansion of Complex Nominals
7 Evaluates Implicit and Explicit Semantics to assign similiarity between Query and Documents using its Integrated Matcher
8 Predicts how many documents need to be viewed to acieve the user-specified level of recall via the Cut-Off Criterion

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© on Mon Oct 13 1997