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Douglas E. Appelt
Researcher at SRI International
Publications - 32
Citations - 3697
Douglas E. Appelt is an academic researcher from SRI International. The author has contributed to research in topics: Natural language & Information extraction. The author has an hindex of 19, co-authored 32 publications receiving 3662 citations. Previous affiliations of Douglas E. Appelt include Artificial Intelligence Center.
Papers
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Patent
Information retrieval by natural language querying
Douglas E. Appelt,James F. Arnold,John Bear,Jerry Robert Hobbs,David Israel,Megumi Kameyama,David Martin,Karen L. Myers,Gopalan Ravichandran,Mark E. Stickel,William Mabry Tyson +10 more
TL;DR: A natural language information querying system includes an indexing facility configured to automatically generate indices of updated textual sources based on one or more predefined grammars and a database coupled to the indexing facilities to store the indices for subsequent searching as discussed by the authors.
Proceedings Article
FASTUS: A Finite-state Processor for Information Extraction from Real-world Text.
TL;DR: FASTUS has been evaluated on several blind tests that demonstrate that state-of-the-art performance on information-extraction tasks is obtainable with surprisingly little computational effort.
Journal ArticleDOI
TEAM: an experiment in the design of transportable natural-language interfaces
TL;DR: Several general problems of natural-language processing that were faced in constructing the TEAM system are discussed, including quantifier scoping, various pragmatic issues, and verb acquisition.
Posted Content
FASTUS: A Cascaded Finite-State Transducer for Extracting Information from Natural-Language Text
Jerry R. Hobbs,Douglas E. Appelt,John Bear,David Israel,Megumi Kameyama,Mark E. Stickel,Mabry Tyson +6 more
TL;DR: This decomposition of language processing enables the system to do exactly the right amount of domain-independent syntax, so that domain-dependent semantic and pragmatic processing can be applied to the right larger-scale structures.
Proceedings ArticleDOI
SRI International FASTUS system: MUC-6 test results and analysis
Douglas E. Appelt,Jerry R. Hobbs,John Bear,David Israel,Megumi Kameyama,David Martin,Karen L. Myers,Mabry Tyson +7 more
TL;DR: SRI International participated in the MUC-6 evaluation using the latest version of SRI's FASTUS system as mentioned in this paper, which is a cascaded finite state transducers, each providing an additional level of analysis of the input and merging of the final results.