Tài liệu Báo cáo khoa học: "Is There Natural Language after Data Bases?" pptx

... Is There Natural Language after Data Bases? Jaime G. Carbonell Computer Science Department Carnegie-Mellon University Pittsburgh, PA 15213 1. Why Not Data Base Query? The ... Like Data Bases Well, then, have I got the natural language interface task for you! Data base update presents many unsolved problems not present in pure query systems. "Aha," th...

Ngày tải lên: 21/02/2014, 20:20

... 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 ... the database as a substitute for conceptual knowledge regarding the database content area. In this paper I examine the issue of whether or not it is possi- ble to build a natur...

Ngày tải lên: 21/02/2014, 20:20

... Natural Language& quot;, Cog- nition, Vol. 2, No. 1, pp. 15-47. MADCOW (1992). "Multi-site Data Collection for a Spoken Language Corpus", in Proceedings of the DARPA Speech and Natural ... 94025 Internet: dowding@ai.sri.com 1. INTRODUCTION Gemini is a natural language (NL) under- standing system developed for spoken language applications. This paper describes...

Ngày tải lên: 20/02/2014, 21:20

... relational database query language. Moreover, the efficiency of the DEC-10 Prolog implementation is comparable both with compiled Lisp [9] and with current relational database systems [6] (for databases ... 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

... End-users can construct natural language interfaces to their own data in minutes, notweeks or years, and without the aid of a grammar special- ist. There is heavy dependence on a data diction- ary ... 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 cla...

Ngày tải lên: 21/02/2014, 20:20

... Assum- ing that natural language systems will not by themselves get faster as they are made to cope with larger fragments of a natural language, it will be useful to continue with database query ... database query as a test environment is that a great deal of important natural language processing research remains to be done in generalizing systems to cope with more than one...

Ngày tải lên: 21/02/2014, 20:20

... retained immediately post-hydrolysis. Therefore, the dissoci- ation of phosphate and ⁄ or ADP is likely to be responsible for resetting of the transporter. The data indicate that, like ABCB1 and ... conducted with 300– 350 nm of the radioligand. There was no detectable dis- placement of [ 3 H]daunomycin binding to membranes that did not express ABCG2 R482G (data not shown). A heterologo...

Ngày tải lên: 18/02/2014, 18:20

... and that in the field of syntax-based language modeling the end of supervised parsing has come in sight. 1 Introduction A major challenge in natural language parsing is the unsupervised ... hand-annotated data which are difficult to come by and which exist only for a few languages. Unsupervised parsing methods are becoming increasingly important since they operate with raw,...

Ngày tải lên: 20/02/2014, 12:20

... infectious in chimpanzees and viral RNA was detected in the serum up to 5 weeks postinfection. Thereafter, infection was cleared without signs of liver inflammation. The described cell culture systems ... the circu- lation (see below). Do all HCV particles require an envelope for cell entry? Again, there are at least doubts. The detection of both envelope proteins in lipoprotein-associated v...

Ngày tải lên: 19/02/2014, 06:20

... also been detected in recom- binant proteins from bacterial origin [3]. According to the MEROPS database (http://www.merops.ac.uk), created by Rawlings & Barrett [4], APs are now grouped into ... by pepstatin and have two aspartic acid residues responsible for the catalytic activity [2,5]. However, there are several structural and functional features that make plant APs unique among asp...

Ngày tải lên: 19/02/2014, 12:20