Tài liệu Báo cáo khoa học: "Panel on Natural Language and Databases" pot

... remains to be done in generalizing systems to cope with more than one natural language. Work on language universals gives reason to be- lieve that some significant part of a natural language system ... fill our demands for ever greater processing speed. A second reason for not yet abandoning the database query as a test environment is that a great deal of important natural...

Ngày tải lên: 21/02/2014, 20:20

... DESCRIPTION Gemini maintains a firm separation between the language- and domain-specific portions of the system, and the underlying infrastructure and ex- ecution strategies. The Gemini kernel consists ... Pereira, F., Robinson, J., and Tyson, M. (1983). "The Formalism and Implementation of PATR-II", in Grosz, B. and Stickel, M. (eds) Research on Interac- tive...

Ngày tải lên: 20/02/2014, 21:20

... 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 front end is a step above ... an applied context, a system that does not have a conceptual knowledge base can pro- duce at best only a shallow level of understanding and one that does not meet the criterion sp...

Ngày tải lên: 21/02/2014, 20:20

... storing and accessing non- primitive information, to be discussed below in section D. B. Time and Tense The problem of providing a common framework for time instants and time intervals is not one ... Quantifying into Questions Quantifying into questions is an issue which was an important concern in Chat, and one for which I feel we produced a reasonably adequate solution. The...

Ngày tải lên: 21/02/2014, 20:20

... capabilities and coverage of natural language interfaces. Thus, work has focused on constructing and using new formalisms (both syntactically and semantically based) and on improving the grammars and/ or ... completed, additional input is put on alpha and parsing begins again with a set of states, each containing the new input string on alpha and one of the save...

Ngày tải lên: 21/02/2014, 20:20

... absurdities can only be forestalled if a semantic model of the underlying domain is built and queried, one that models actions, including their preconditions and consequences, and knows about ... marketing (and vice versa for Jones)? Or, should Smith and Jones remain fixed points while all other sales and marketing employees are swapped? As Kaplan and Davidson [3] point out,...

Ngày tải lên: 21/02/2014, 20:20

... differential electronic environment. The nature and type of amino acids and their side-chain orientations around iron– sulfur cluster coordination sites are the likely cause of minor variations in the electronic ... this observation, the total iron content of proteins purified under different conditions was measured. The total iron content of the native and in-column refolded protein var...

Ngày tải lên: 18/02/2014, 12:20

... absence of ligand, the WPD loop of PTP1B and RPTPa adopts an open (inactive) conformation, and upon ligand bind- ing, it adopts a closed (active) conformation (Fig. 3A). In oxidized PTP1B [12,13] and RPTPa ... summary, the conformation of the P-loop only changes: (a) when the general acid loop and active site arginine are steri- cally constrained; and (b) upon intramolecular bond fo...

Ngày tải lên: 18/02/2014, 18:20

... tags and features for training a conditional random field model. At run- time, the model is used to extracting translation candidates for a given term. Preliminary experiments and evaluation ... (respectively, Natural Language Parsing, Question Classification, and Named Entity Recognition). Quoh (2006) points out that submitting the source term and partial translation to a...

Ngày tải lên: 19/02/2014, 19:20

... Association for Computational Linguistics, pages 703–711, Portland, Oregon, June 19-24, 2011. c 2011 Association for Computational Linguistics The impact of language models and loss functions on repair ... disfluency detection Simon Zwarts and Mark Johnson Centre for Language Technology Macquarie University {simon.zwarts|mark.johnson|}@mq.edu.au Abstract Unrehearsed spoken language...

Ngày tải lên: 20/02/2014, 04:20