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

Tài liệu Báo cáo khoa học: "ISSUES IN NATURAL LANGUAGE ACCESS TO DATABASES FROM A LOGIC PROGRAMMING PERSPECTIVE" doc

... "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 defined by general rules having ... power of a fully general programming language. The logic programming approach therefore allows one to interface NL to general programs as well as to databases. Current Prolog systems, because...

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 ... 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. ... human intermedlary[l]? What are the independent variables that must be allowed for? What tools are available to determine user bias and experience beforehand, and user satisfaction afterward?...

Báo cáo khoa học: Functional implications of pigments bound to a cyanobacterial cytochrome b6f complex potx

... 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 indicatenegative LD values for the Qytransitions ... implies a shorterangle than the magic angle [38]. If the plane of the discequals the plane of the particle in the membrane, posit-ive and negative LD values indicate a small and largeangle, ... crystal structure of Mastigocladus laminosus [5],with the X-axis approximately parallel and the Y-axisabout perpendicular to the membrane plane.The spectroscopic data presented in this paper...

Báo cáo khoa học: "Intelligent Selection of Language Model Training Data" ppt

... required to build a language model from allthe data.2 Approaches to the ProblemOur approach to the problem assumes that we haveenough in-domain data to train a reasonable in-domain language model, ... one language model trained on the Europarltraining data and one trained on the Gigaworddata. To make these language models comparable,and to show the feasibility of optimizing the ﬁt to the ... IntroductionStatistical N-gram language models are widelyused in applications that produce natural -language text as output, particularly speech recognition andmachine translation. It seems to be a univer-sal...

Báo cáo khoa học: "Automatic Acquisition of Language Model based on Head-Dependent Relation between Words" pdf

... 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 probability to a sentence. It is a key part of many natural language applications such as speech recognition and statistical machine translation. Previous works for language modeling ... which is a key part of many natural language applications such as speech recognition and statistical machine translation. In this paper, we present a language modeling based on a kind of...

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 ... 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 EVALUATIONS ... Experiments were made in three modes: in addition to face -to- face and human -to- co~puter, cerainal-co-terminal communication was examined, since at present chat is the only practical mode of accessing...

Báo cáo khoa học: Kinetic hybrid models composed of mechanistic and simpliﬁed enzymatic rate laws – a promising method for speeding up the kinetic modelling of complex metabolic networks pptx

... increased value of kATPaseas compared to the value k0ATPase¼ 1:6hÀ1. At valuesof kATPaseexceeding seven-fold of its normal value,no stationary states can be found; that is,kmaxATPase¼ ... suffi-cient data available to set up a mechanistic rate lawinstead of a simplified one. Therefore, our decision to incorporate into the simplified rate laws only thechemistry of the reaction appears to ... sim-plified approaches used (MA and LLst) can be param-eterized with such data, whereas the more advancedmodels (LL, PL and MM) require more data to trainthe rate law parameters. Importantly, even...

Báo cáo khoa học: Active c-secretase is localized to detergent-resistant membranes in human brain pptx

... concentration was analyzed byBCA assay in (A) human brain and (B) rat brain. (C) Human brain membranes were treated with 2.0% CHAPSO, fractionated on a sucrosegradient, and subjected to western ... 0.25% CHAPSO was used as the mobile phase. (A) The absorbance at 254 nm was monitored. The DRM chromatogram wasnormalized to the standard chromatogram. (B,C) Every second fraction was analyzed by ... 6.1 antibody, and DrTakeshi Nishimura (Dainippon Sumitomo Pharma) forC99-FLAG. We thank Dr Nenad Bogdanovic andInga Volkmann (Karolinska Institutet) for skillfulassistance with human brain...

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

... Switzerlandpfister@tik.ee.ethz.chAbstractWe propose a language model based on a precise, linguistically motivated grammar (a hand-crafted Head-driven Phrase StructureGrammar) and a statistical model estimatingthe probability ... create an artiﬁcial recognition taskwith manageable complexity. Our primary aim was to design a task which allows us to investigate theproperties of our grammar-based approach and to compare ... Proceedings of ACL-08: HLT, pages 106–113,Columbus, Ohio, USA, June 2008.c2008 Association for Computational LinguisticsApplying a Grammar-based Language Model to a Simpliﬁed Broadcast-News Transcription...

Báo cáo khoa học: "Applying Explanation-based Learning to Control and Speeding-up Natural Language Generation" potx

... 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 corresponds to a phrasal ... viewed, a grammar is a formal state- ment of the relation between utterances in a natural language and representations of their meanings in some logical or other artificial language, where...

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