Báo cáo khoa học: "XML-Based Data Preparation for Robust Deep Parsing" pptx

Tài liệu Báo cáo khoa học: "Web-Scale Features for Full-Scale Parsing" doc

... fromconstituent format to dependency format. FollowingKoo et al. (2008), we used the MXPOST tagger(Ratnaparkhi, 1996) trained on the full training data to provide part-of-speech tags for the development3All ... errorreduction. Results are for dependency parsing on the dev set for iters:5,training-k:1.tal errors break down by gold head. For example,the 12.1% total error reduction for attachments of anIN ... leave, inhave NN IN time, for some NN IN money, for annual NNS IN reports, onTable 8: The highest-weight features (thresholded at a count of400) of the before-word schema for a noun head and prepositionargument...

Tài liệu Báo cáo khoa học: " A Declarative Language for Implementing Dynamic Programs∗" pptx

... acquire more over time: we in-tend for it to generalize and encapsulate best practices,and serve as a testbed for new practices. Dyna is now be-ing used for parsing, machine translation, morphologicalanalysis, ... become a more experi-mental science. One often uses real-world data to testone’s formal models (grammatical, statistical, or both).Unfortunately, as in other experimental sciences, test-ing each ... probabilities, whichpermits heuristic early stopping before the agenda isempty. With viterbi values, it amounts to uniform-costsearch for the best parse, and an item’s value is guaran-teed...

Tài liệu Báo cáo khoa học: "Using Confidence Bands for Parallel Texts Alignment" pptx

... longer afford to waste human time and effortbuilding manually these ever changing and in-complete databases or design language specificapplications to solve this problem. The need for an automatic ... brackets). For average size texts (e.g. the Written Ques-tions), these words account for about 5% of thetotal (about 3k words / text). This number variesaccording to language similarity. For instance,on ... Y-axis intercept (thevalue of y when x is 0), substituting x for thePortuguese word position. For Table 3, the ex-pected word position for the word I at pt wordposition 3877 is 0.9165 × 3877 +...

Tài liệu Báo cáo khoa học: "Charting the Depths of Robust Speech Parsing" pdf

... to a robust semantic processing component for fur- ther treatment, while the next best WHG path is analyzed by the parser 2. Robust semantic processing similarly builds up a chart-like data ... by specifying special types for these complete utterances, phrases, and lexical items. 3. For robust processing, the interface must export a certain amount of information from syntax and morphology ... describe a novel method for coping with un- grammatical input based on the use of chart-like data structures, which permit anytime process- ing. Priority is given to deep syntactic anal- ysis....

Tài liệu Báo cáo khoa học: "Support Vector Machines for Query-focused Summarization trained and evaluated on Pyramid data" ppt

... information to be included in a query-focused summary. Several SVMs aretrained using information from pyramidsof summary content units. Their per-formance is compared with the best per-forming ... 57–60,Prague, June 2007.c2007 Association for Computational LinguisticsSupport Vector Machines for Query-focused Summarization trained andevaluated on Pyramid data Maria FuentesTALP Research CenterUniversitat ... well-organized, ﬂuent answer to aneed for information”, described by a short query(two or three sentences). DUC participants have tosynthesize 250-word sized summaries for ﬁfty setsof 25-50 documents...

Tài liệu Báo cáo khoa học: "An Improved Parser for Data-Oriented Lexical-Functional Analysis" doc

... An Improved Parser for Data- Oriented Lexical-Functional AnalysisRens BodInformatics Research Institute, University of Leeds, Leeds LS2 9JT, UK, &Institute for Logic, Language and ... frag-ment size is confirmed for LFG-DOP; (3) LFG-DOP's relative frequency estimator performsworse than a discounted frequency estimator; and(4) LFG-DOP significantly outperforms Tree-DOP if evaluated ... derivation for an LFG-DOPrepresentation R is a sequence of fragments thefirst of which is labeled with S and for which theiterative application of the composition operationproduces R. For an...

Tài liệu Báo cáo khoa học: A facile method for expression and puriﬁcation of the Alzheimer’s disease-associated amyloid b-peptide pdf

... performed inpositive reﬂector mode, collecting data from approximately3000 and 5000 single laser shots for MS and MS ⁄ MS anal-yses, respectively. Preparation of aggregate-free monomer for ﬁbrillation ... incu-bated for 4 days with each of the peptides (10 lm), andcells were ﬁxed and used for immunocytochemical analyses.ImmunocytochemistryNeurons were ﬁxed in 4% paraformaldehyde for 20 minat ... peptides should lead to aggregationand formation of inclusion bodies, and that Ab wouldbe less susceptible to degradation in this form. More-over, the formation of inclusion bodies enables high-level...

Tài liệu Báo cáo khoa học: Pathways and products for the metabolism of vitamin D3 by cytochrome P450scc docx

... above. Preparation of minor products to test assubstrates for P450sccMinor metabolites of vitamin D3 were puriﬁed from50 mL incubations of 100 lm vitamin D3 with 2 lm P450,as described above for ... resulted in the formation of 20,23-di-hydroxyvitamin D3 (RT = 30 min) and trihydroxyvi-tamin D3 (RT = 22 min) (Fig. 4A). A small lag (0–3 min) was seen in the time course for formation oftrihydroxyvitamin ... correlations for 3-CH and 23-CH; (B) expan-sion of proton–proton TOCSY correlations for 3-CH and 23-CH; (C)expansion of proton–carbon HSQC showing groups having correla-tion to 3-CH and 23-CH (for...

Tài liệu Báo cáo khoa học: "Translation Model Adaptation for Statistical Machine Translation with Monolingual Topic Information" doc

... context in-formation at the sentence level, we adopt thetopical context information in our method for the following reasons: (1) the topic informa-tion captures the context information beyondthe ... anovel approach for translation model adapta-tion by utilizing in-domain monolingual top-ic information instead of the in-domain bilin-gual corpora, which incorporates the topic in-formation into ... in-corporate the topic information into our translationmodel, thus breaking down the corpus barrier for translation quality improvement. The experimentalresults on the NIST data set demonstrate...

Tài liệu Báo cáo khoa học: "A Statistical Model for Unsupervised and Semi-supervised Transliteration Mining" pptx

... labelled data probabilities using the unlabelled data probabil-ities as a backoff.4.1 Model EstimationWe calculate the unlabelled data probabilities in theE-step using Equation 4. For labelled data ... using labelled data. The ideais to rely on probabilities from labelled data wherethey can be estimated reliably and to use probabili-ties from unlabelled data where the labelled data issparse. ... task conducted on Wikipedia InterLan-guage Links (WIL) data. The NEWS10 dataset con-tains 1000 labelled examples (called the “seed data ) for initial training. All systems which participatedin...

Xem thêm