Báo cáo khoa học: "EVALUATION OF NATURAL LANGUAGE INTERFACES TO DATA BASE SYSTEMS" pdf

... 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 the beholder? ... clearly has to be reasonably free of bugs in my case, 12 bugs were hit in the total of 1615 parsed and nonparsed messages. The adequate extent of natural language s...

Ngày tải lên: 17/03/2014, 19:20

... 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 to be ... and the database domaln+s semantics. All natural language access systems achieve some degree of success. But to make progress as a field, we need to be able t...

Ngày tải lên: 08/03/2014, 18:20

... should not struggle too hard to bend one's NL interface to fit an existing database. Rather the database should be designed to meet the needs of NL access. If the database does not easily ... 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...

Ngày tải lên: 21/02/2014, 20:20

... either of specifying a subset of the class identified by the noun stored in the upper REF or to refer to a pro~ erty of a given object. An example of the first kind is "the professors of ... the meaning of the different fields refer to the example of fig.3. The TRANSL slot refers to the interpretation (in terms of data base operations) of the constit...

Ngày tải lên: 18/03/2014, 02:20

... judgments of the clarity of meaning of indivi- dual sentences. The approach through testing of reading comprehension provides a direct test of at least one aspect of the quality of translation. ... effect of changing to the other type of translation after different amounts of practice could be observed. Procedure Subjects were run in groups of up to four. They w...

Ngày tải lên: 19/02/2014, 19:20

... related directly to the Core Language Engine, but more conceptually it is closely re- lated to that of other unification-based grammar formalisms with a context-free skeleton, such as PATR-II ... "Multi-site Data Collection for a Spoken Language Corpus", in Proceedings of the DARPA Speech and Natural Language Workshop, February 23-26, 1992. Marcus, M. (1980)...

Ngày tải lên: 20/02/2014, 21:20

... difficult to compare one set of classes against an- other and are also not very reliable estimates of the quality of a set of classes. It is clear that a formal evaluation scheme would be of great ... making it easier to move an NLP system from one domain to another. One of the reasons for the lack of portability is the need for domain-specific semantic features tha...

Ngày tải lên: 20/02/2014, 22:20

... language atoms= =X=~em=, The principle motivation for building natural language systems for database access is ~o free the user from the need for data processing instruction. A natural language ... Domain-Independent Natural Language Database Access Systems Steven P. Shvartz Cognitive Systems Inc. 234 Church Street New Haven, Ca. 06510 Zn the past decade, a number o...

Ngày tải lên: 21/02/2014, 20:20

... to use menu-based, natural language interfaces to databases. 3. Features of NLMenu Interfaces to Databases The NLMenu system does not store the words that correspond to open class data base ... application area for natural language interfaces has been to databases. Second, the process of producing an interface to any arbitrary set of relations has bee...

Ngày tải lên: 21/02/2014, 20:20

... implemented fail to meet this criterion. However, data base query interfaces met this criterion admirably. 3. The task should motivation investigation of a set of language phenomena of recognizable ... application for natural language interfaces has been data base query. Why? The reasons range from the relative simplicity of the task, including shallow semanti...

Ngày tải lên: 21/02/2014, 20:20