Báo cáo khoa học: "Applying a Grammar-based Language Model to a Simplified Broadcast-News Transcription Task" ppt

... "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 ... make database languages more like natural language. However Prolog is much more general than relational database formalisms, in that it permits data to be defi...

Ngày tải lên: 21/02/2014, 20:20

... 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 ... 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 o...

Ngày tải lên: 08/03/2014, 18:20

... features around 630 and 620 nm, respectively, as well as a sharp negative feature at 555 nm and pos- itive features near 548 and 530 nm. These data indicate negative LD values for the Q y transitions ... implies a shorter angle than the magic angle [38]. If the plane of the disc equals the plane of the particle in the membrane, posit- ive and negative LD values indicate a small and larg...

Ngày tải lên: 07/03/2014, 16:20

... required to build a language model from all the data. 2 Approaches to the Problem Our approach to the problem assumes that we have enough in-domain data to train a reasonable in- domain language model, ... one language model trained on the Europarl training data and one trained on the Gigaword data. To make these language models comparable, and to show the feasibi...

Ngày tải lên: 07/03/2014, 22:20

... a robust grammar, grammar-based language modeling is expected to be more powerful and compact in model size than n-gram-based one. In this paper we present a language modeling based on a ... associate a priori prob- ability to a sentence. It is a key part of many natural language applications such as speech recognition and statistical machine translation. Prev...

Ngày tải lên: 08/03/2014, 05:21

... 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 ... embarrassing but very valuable. Another c~ent prompted by those evaluations is chat the application of any rigid, fine scale is totally inappropriate in the case of NLI evaluations. NLI EVAL...

Ngày tải lên: 17/03/2014, 19:20

... increased value of k ATPase as compared to the value k 0 ATPase ¼ 1:6h À1 . At values of k ATPase exceeding seven-fold of its normal value, no stationary states can be found; that is, k max ATPase ¼ ... suffi- cient data available to set up a mechanistic rate law instead of a simplified one. Therefore, our decision to incorporate into the simplified rate laws only the chemistry of...

Ngày tải lên: 23/03/2014, 06:20

... concentration was analyzed by BCA assay in (A) human brain and (B) rat brain. (C) Human brain membranes were treated with 2.0% CHAPSO, fractionated on a sucrose gradient, and subjected to western ... 0.25% CHAPSO was used as the mobile phase. (A) The absorbance at 254 nm was monitored. The DRM chromatogram was normalized to the standard chromatogram. (B,C) Every second fraction was anal...

Ngày tải lên: 30/03/2014, 04:20

... Switzerland pfister@tik.ee.ethz.ch Abstract We propose a language model based on a precise, linguistically motivated grammar (a hand-crafted Head-driven Phrase Structure Grammar) and a statistical model estimating the probability ... create an artificial recognition task with manageable complexity. Our primary aim was to design a task which allows us to investigate the prop...

Ngày tải lên: 17/03/2014, 02:20

... spe- cialize a given source grammar to a specific domain. In that case, EBL is used as a method for adapting a general grammar and/or parser to the sub -language defined by a suitable training ... that in case an exact match of an input MRS fails we want at least as many subparts as possible to be instantiated. Since the instantiated template of a MRS subpart corres...

Ngày tải lên: 08/03/2014, 21:20