Báo cáo khoa học: "Answer Sentence Retrieval by Matching Dependency Paths Acquired from Question/Answer Sentence Pairs" pdf

... 2012. c 2012 Association for Computational Linguistics Answer Sentence Retrieval by Matching Dependency Paths Acquired from Question/Answer Sentence Pairs Michael Kaisser AGT Group (R&D) GmbH J ¨ agerstr. ... answer sentences. In this paper we describe an algorithm that learns possible syntactic answer sentence formu- lations for syntactic question classes from a...

Ngày tải lên: 17/03/2014, 22:20

... rate-limiting enzyme in the synthesis of NAD + from nicotin- amide. Visfatin ⁄ PBEF ⁄ NAMPT is synthesized and secreted in adipose tissue by adipocytes, and mostly by macrophages, and circulates in the ... protein lysate was separated by 10% SDS ⁄ PAGE and transferred to nitrocellulose mem- branes (Amersham, Saclay, France). Equal loading of pro- teins was verified by Ponceau red sta...

Ngày tải lên: 06/03/2014, 22:21

... deviate in characteristic ways from the unmarked lexico- grammatical patterning and informational ordering in the sentence. This is exemplified by the con- structions of sentences (2) - (5) above. ... positives) from such examples that are wrongly identified by the query (false positives). Each expert linguist thus acts as a rater rather than an annotator. The tool records as- sessment...

Ngày tải lên: 16/03/2014, 20:20

... acquired in positive ionization mode and reflectron mode by accumulat- ing data from 1800 laser shots per spot. Data acquisition was performed by flex control 3.0.101.1, which was controlled by ... explained by the fact that the GYGPG motif is preceded by eight amino acids that could facilitate the adoption of an active conformation and its stabilization. This has also been sugge...

Ngày tải lên: 16/02/2014, 14:20

... derived from the amyloid precursor protein by sequential proteolytic cleavage by two membrane-bound proteases, b- and c-secretase [2]. The length of the peptide is variable, ranging from 39 Keywords Alzheimer’s; ... cleaved by a-secretase to generate the non-amyloidogenic sAPPa and p3 fragments from amyloid precursor protein, precluding the production of Ab [43,44]. The p3 peptide...

Ngày tải lên: 18/02/2014, 08:20

... pH. Transcripts derived from the sequences of the tRNA Arg ACG genes from jack bean and soybean were arginylated to only 6–10% of the theoretical acceptance by the arginyl-tRNA synthetases from both jack ... nucleotidyl transferase from yeast originated from the stocks of H. Sternbach (formerly Max- Planck-Institute, Go ¨ ttingen), while that from E. coli in recombinant form was...

Ngày tải lên: 18/02/2014, 13:20

... a minimum of 10 4 events per sample were acquired. Flow cytometric analyses were performed on a FACScan (BD Biosciences; Heidelberg, Germany) followed by analysis using cellquest and winmdi software. Gene ... siRNA siCONTROL from Dharmacon was used as a negative, nonsilencing control. Cells were transfected with 100 nm siRNAs using siM- PORTER (Biomol, Hamburg, Germany) as described by...

Ngày tải lên: 18/02/2014, 17:20

... generative model. 1 Their parameters can be estimated from either labelled data, using maximum like- lihood estimates, or from unlabelled data by expectation maximization 2 which makes them either ... can see in Table 1a that the precision increases slightly from 0.7127 to 0.7557 whereas the recall decreases from 0.3500 to 0.3045 going from dataset size 500 to 2500. This suggests...

Ngày tải lên: 20/02/2014, 04:20

... techniques from summarization and information retrieval. We tackle a frequently-occurring class of questions that takes the form “What is the best drug treatment for X?” Starting from an initial ... most widely used by physi- cians today. 1 Introduction Complex information needs can rarely be ad- dressed by single documents, but rather require the integration of knowledge from mul...

Ngày tải lên: 20/02/2014, 12:20

... deletion. Figure 2 shows two representations of a tree that might be generated by an MTG in GCNF for the imperative sentence pair Wash the dishes / Pasudu moy . The tree exhibits both deletion ... which is accomplished by the role templates in the term. Translator CT scans only the input components. Terminal productions with active output components are simply loaded from the grammar,...

Ngày tải lên: 20/02/2014, 16:20