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Anette Frank Hans-Ulrich Krieger Feiyu Xu Hans Uszkoreit Berthold Crysmann Brigitte Jrg Ulrich Schfer 《Journal of Applied Logic》2007,5(1):20-48
We present an implemented approach for domain-restricted question answering from structured knowledge sources, based on robust semantic analysis in a hybrid NLP system architecture. We perform question interpretation and answer extraction in an architecture that builds on a lexical-conceptual structure for question interpretation, which is interfaced with domain-specific concepts and properties in a structured knowledge base. Question interpretation involves a limited amount of domain-specific inferences, and accounts for higher-level quantificational questions. Question interpretation and answer extraction are modular components that interact in clearly defined ways. We derive so-called proto queries from the linguistic representations, which provide partial constraints for answer extraction from the underlying knowledge sources. The search queries we construct from proto queries effectively compute minimal spanning trees from the underlying knowledge sources. Our approach naturally extends to multilingual question answering, and has been developed as a prototype system for two application domains: the domain of Nobel prize winners, and the domain of Language Technology, on the basis of the large ontology underlying the information portal LT World. 相似文献
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Switula D 《Science and engineering ethics》2006,12(1):147-156
Quality in clinical research may be defined as compliance with requirements together with credibility and reliability of the
data obtained. Sponsors usually apply Quality Management Systems (QMS) to ensure, control, maintain, and improve quality.
These systems encompass several preventive measures, tools, and controls. Standard QMS applied by clinical research sponsors
may be based on ISO 9000.
An earlier version of the paper was presented at the 6th International Bioethics Conference on the subject of ‘The Responsible
Conduct of Basic and Clinical Research’, held in Warsaw, Poland, 3–4 June 2005. 相似文献
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