developing a natural language interface to complex data
Tài liệu Báo cáo khoa học: "ISSUES IN NATURAL LANGUAGE ACCESS TO DATABASES FROM A LOGIC PROGRAMMING PERSPECTIVE" doc
... make database languages more like natural language. However Prolog is much more general than relational database formalisms, in that it permits data to be defined by general rules having ... "top-down" approach, as reallsed in the language Prolog, has a great deal in common with the relational approach to databases, which can be seen as the result of a "bottom-up" effort to make ... of a thousand tuples. A disadvantage of much current work on NL access to databases is that the work is restricted to providing access to databases, whereas users would appreciate NL interfaces...
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Báo cáo khoa học: "EVALUATION OF NATURAL LANGUAGE INTERFACES TO DATABASE SYSTEMS: A PANEL DISCUSSION " ppt
... EVALUATION OF NATURAL LANGUAGE INTERFACES TO DATABASE SYSTEMS: A PANEL DISCUSSION Norman K. Sondheimer, Chair Sperry Univac Blue Bell, PA For a natural language access to database system ... basis of these evaluations, what should the future look like for natural language access to database? Under this point, what niches look most promising for natural language interfaces? What ... Recently, this has begun to change. In the last several years, many of the current generation of natural language access to database systems have been subject to laboratory or field testing....
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Tài liệu Báo cáo khoa học: "NATURAL-LANGUAGE ACCESS TO DATABASES--THEORETICAL/TECHNICAL ISSUES" docx
... been many experimental systems for natural- language access to databases, with some now going into actual use, many problems in this area remain to be solved. The purpose of this panel is to ... NATURAL- LANGUAGE ACCESS TO DATABASES THEORETICAL/TECHNICAL ISSUES Robert C. Moore Artificial Intelligence Center SRI International, Menlo Park, CA 94025 I INTRODUCTION Although there have ... the conference. The panel's motivation stems partly from the fact that, too often in the past, discussion of natural- language access to databases has focused, at the expense of the...
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Tài liệu Báo cáo khoa học: "THEORETICAL/TECHNICAL ISSUES IN NATURAL LANGUAGE ACCESS TO DATABASES" pdf
... transformations, result- ing in structures and ultimately SQL expressions appropriate for that database organization. In this way, it would be easy to handle such database organ- izations as ... other problems in natural language access to databases. In addition to considering some subset of the chairman's five problems, each of the panelists was invited to propose and choose one ... treatment. The approach we have taken in TQA is, insofar as possible, to provide the necessary coverage to per- mit all the locutions that are natural in a given application. The formalism by which...
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Báo cáo khoa học: "Semantic Information Preprocessing for Natural Language Interfaces to Databases" docx
... Semantic Information Preprocessing for Natural Language Interfaces to Databases Milan Mosny Simon Fraser University Burnaby, BC VhA 1S6, Canada mosny@cs.sfu.ca Abstract An approach is ... utterance in natural language (lexical predicates). Output is a logical formula, consist- ing of predicates meaningful to the database engine (database predicates). AET provides a formalism ... Verlag, New York. Rayner, Manny, 1993. Abductive Equivalentiai Translation and its application to Natural Language Database Interfacing. Ph.D. Thesis, Royal Institute of Technology, Stockholm,...
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Báo cáo khoa học: "NATURAL LANGUAGE INPUT TO A COMPUTER-BASED GLAUCOMA CONSULTATION SYSTEM " pot
... research came from the desire to have natural language input of cases to CASNET/GLAUCOMA a computer-based glaucoma consultation system developed at Retgers University. A case is several paragraphs ... Indicate thac a "case'* [Bruce 1975] approach to semantic analysis is a " ;natural& quot;. A case syecsm ham in fact been implemented with such cases as ATTRIBUTE, OBJECT, VALUE, and ... [Braclman 1978]. MODALITT can have too values NECESSARY and OPTIONAL. Modality is used to reprexnt the fact ~rat eyes are necessary parts of patients bu~ scotouaa (bllnd-spots) may or may not be present...
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Báo cáo khoa học: "EVALUATION OF NATURAL LANGUAGE INTERFACES TO DATA BASE SYSTEMS" pdf
... what decks of the Alamo cargo be stored?") but would have failed on syatactic grounds as well, it would fall in the vocabulary category. A comparison can be made here with Damerau's ... given task. 41 EVALUATION OF NATURAL LANGUAGE INTERFACES TO DATA BASE SYSTEMS Bozena Henisz Thompson California Institute of Technology INTEODUCT~ON Is evaluation, like beauty, in the eye of ... interested in all or almost all actual or potential bodies of evaluators. One of our colleagues expressed a forceful opinion while being a member of a similar panel at last year's ACL conference:...
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Báo cáo khoa học: "Interaction of Knowledge Sources in a Portable Natural Language Interface" docx
... design of natural language interfaces that has evolved during the development of DATALOG, an Eng- lish database query system based on Cascaded ATN grammar. By providing separate representation ... two-level semantic model to handle more complex databases, and inte- grating a pragmatic component for handling ana- phora and other dialogue-level phenomena into the Cascaded ATN grammar. 1. ... Lab- oratories, Warren MI (1984). 7. Grosz, B. J., "TEAM: A Transportable Natural Language Interface System." In Proc. Conf. on Applied Natural Language Processing, Santa Monica...
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Tài liệu Báo cáo khoa học: "Integration of Large-Scale Linguistic Resources in a Natural Language Understanding System" pdf
... lexicai lookup, syntactic parsing, semantic analysis, and pragmatic analysis. Each stage has been designed to use linguistic data such as the lexicon and grammar, which are maintained separately ... large scale linguistic resources into our natural language understanding system. Client- server architecture was used to make a large volume of lexical information and a large knowledge base ... natural language understanding (NLU) system (Dahl, Norton and Scholz (1998), Dahl (1992)) is done by a natural language (NL) engine with the architecture shown in Figure 1. Processing stages...
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Tài liệu Báo cáo khoa học: "GEMINI: A NATURAL LANGUAGE SYSTEM FOR SPOKEN-LANGUAGE UNDERSTANDING*" doc
... sortal constraints are assigned to every atomic predicate and opera- tor appearing in the logical forms constructed by the semantic rules. Sorts are located in a conceptual hierarchy and are ... Spoken Language Corpus", in Proceedings of the DARPA Speech and Natural Language Workshop, February 23-26, 1992. Marcus, M. (1980). A Theory of Syntactic Recog- nition for Natural Language, ... that when they are formulated loosely, as in the pre- vious paragraph, they appear to conflict. In par- ticular, in ( 2a) , Right Association seems to call for the parse that makes for Mary a...
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Tài liệu Báo cáo khoa học: "TOWARDS A CORE VOCABULARY FOR SYSTEM A NATURAL LANGUAGE" potx
... (;ci'many lhnaih !,1'~!! at I)! ll)iBM I.BITNI'71' ABSTRACT The desire to construct robust and portable na- tural language systems has led to research on how a core vocabulary ... eliminate arbitrariness. Rather, a definition of representative corpus must take into account tile research goals pursued. For a natural language system which is sup- posed to analyze and ... relate to semantic criteria? 3. What semantic criteria can be found to de- fine a core vocabulary? Definitions of a core vocabulary "l:here are several ways to define core vocab,lary,...
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Báo cáo khoa học: "A NATUWAL LANGUAGE INTERFACE USING A WORLD MODEL" pdf
... represents a relationship to another class using a $class facet and mapping information to the database schema using a Sstorage facet. The value of a Sstorage facet denotes the class name which has ... of Tokyo, 1981. Ginsparg, J. M., A Robust Portable Natural Language Data Base Interface, Proc. Conf. Applied Natural Language Processing, 1983, pp.25-30. Grosz, B. J., TEAM: A Transportable ... Transportable Natural- Language Interface System, Proc. Conf. Applied Natural Language Processing, 1983, pp.39-45. Hendrix, G. G., Sacerdoti, E. D., Sagalowicz, D., Slocum, J., Developing a Natural Language...
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Báo cáo khoa học: "Building a Large Knowledge Base for a Natural Language System" doc
... "laboratory animals", "laboratory spores", "labora- tory contamination", "laboratory nwthods". 2. " ;a study by a research laboratory", "laboratory ... knowledge and that a sophisticated natural language sys- tem must have a large knowledge base. But heretofore, the knowledge bases in natural language systems have either encoded only a few kinds ... been carried out as part of a project to build a system for natural language access to a computerized medical textbook on hepatitis. The user asks a question in English, and rather than at-...
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A Bayesian network approach to the database search problem in criminal proceedings docx
... 3:16http://www.investigativegenetics.com/content/3/1/16RESEARCH Open Access A Bayesian network approach to the databasesearch problem in criminal proceedingsAlex Biedermann1*,Joăelle Vuille2and Franco Taroni1AbstractBackground: The ‘database ... correspondence with an individual that isnot the true source is not equal to zero. With a potentialof adventitious matches, each database member thus runsarealrisktofaceachargebasedona‘databasehit’.Forthese ... problem,’ ‘Bayesian network for a databasesearch setting: suspect and one other individual in thedatabase,’ ‘Bayesian network for a search of a database ofsize n > 2,’ and ‘Discussion and conclusions’.MethodsPreliminariesIn...
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