Báo cáo khoa học: "Grammatical Error Correction with Alternating Structure Optimization" pot

... learner text.5 Alternating Structure OptimizationThis section describes the ASO algorithm and showshow it can be used for grammatical error correction. 5.1 The ASO algorithm Alternating Structure ... June 19-24, 2011.c2011 Association for Computational LinguisticsGrammatical Error Correction with Alternating Structure OptimizationDaniel Dahlmeier1and Hwee Tou Ng1,21NUS Graduate School ... sys-tem ﬂag an error and suggest the same correction. If the system’s correction differs from the humanbut is equally acceptable, it is considered (2) BothOk. If the system identiﬁes an error but...

Báo cáo khoa học: "Grammatical Role Labeling with Integer Linear Programming" pot

... functional roles, e.g. subject), andgiven a sentence with verbs, (auxiliary, modal,finite, non-finite, ), and chunks, ( , ), labelall pairs ( ) with a grammatical role2.In this paper, we are ... as a filter operat-ing upon the output of a statistical classifier. Thetypical errors being made by classifiers with onlylocal decisions are: a constituent is assigned to agrammatical role more ... themaximization task, i.e. which constituent is at-tached to which grammatical function and with which impact. Of course, without any further re-strictions, every constituent would get assigned toevery...

Tài liệu Báo cáo khoa học: "Grammar Error Correction Using Pseudo-Error Sentences and Domain Adaptation" pdf

... that re-gards the pseudo-errors and the real-errors as thesource and the target domain, respectively, so thatthe pseudo-errors better match the real-errors.2 Error Correction by DiscriminativeSequence ... preposition/article error correction inEnglish. For English error correction, many stud-ies employ classiﬁers, which select the appropriateprepositions/articles, by restricting the error typesto ... proposedtranslator-based error correction. This approach canhandle all error types by converting the learner’ssentences into the correct ones. Although the targetof this paper is particle error, we employ...

Báo cáo khoa học: "Extracting Word Sets with Non-Taxonomical Relation" potx

... word sets that do not agree with the thesaurus as word sets with a thematic relation. 3. Experiment In our experiment, we used domain-specific Japa-nese documents within the medical domain ... terms from them, and removed word sets with a taxonomical relation from them with the MeSH thesaurus in order to obtain the rest 847 word sets as word sets with a thematic relation. 4. Verification ... of Web pages retrieved with Type2 (base key words)Number of Web pages retrieved when a term is added to Type2Type3: With additional term in a different category Type1: With additional term in...

Báo cáo khoa học: "Learning Translation Consensus with Structured Label Propagation" potx

... systems. Hypothesis mixture decoding (Duan et al., 2011) performs a second decoding process where the search space is enriched with new hypotheses composed out of existing hypotheses from ... develop a novel structured label propagation method for structured learning problems, such as machine translation. Note that, the structured label propagation can be applied to other structured ... training. The entire process starts with a decoder without consensus features. Then a graph is constructed out of all training, dev, and test data. The subsequent structured label propagation provides...

Báo cáo khoa học: "Arabic Language Modeling with Finite State Transducers" potx

... recognizer. Wecompose this with each of the templates. Some num-ber of analyses result from each composition. Thatis, a single template may not compose with the word,may compose with it in a unique ... com-pose with the word in several ways. Each of the suc-cessful compositions produces a ﬁnite state recog-nizer with brackets surrounding the stem. We use ascript to collapse the arcs within ... meaning tostudy, combines with the present tense verb pattern“CCuCu”, where the ‘C’ represents a root letter, toform the present tense stem drusu. This stem can becombined with 11 different combinations...

Báo cáo khoa học: "Guiding Semi-Supervision with Constraint-Driven Learning" potx

... semi-supervised oreven unsupervised approaches, when given enoughknowledge about the structure of the problem, willbe competitive with the supervised models trainedon large training sets. However, in the ... away to label, along with the current learned model,unlabeled examples. Given a small amount of la-beled data and a large unlabeled pool, our frame-work initializes the model with the labeled ... punctuation marks.3) The citation can only start with author or editor.4) The words pp., pages correspond to PAGE.5) Four digits starting with 20xx and 19xx are DATE.6) Quotations can appear...

Tài liệu Báo cáo khoa học: "Using Error-Correcting Output Codes with Model-Refinement to Boost Centroid Text Classifier" ppt

... with each other. ∑=∈icdiidcC1 (1) ⎟⎟⎠⎞⎜⎜⎝⎛⋅=22maxargiiiCdCdcc (2) For example, the single-topic documents involved with “sport” or “education” can meet with ... assumption that the documents in one category should share some similarities with each other. However, this hypothesis is often violated by ECOC on the grounds that it ignores the similarities ... classifier is comparable to or even better than SVM classifier in performance. 2. Error- Correcting Output Coding Error- Correcting Output Coding (ECOC) is a form of combination of multiple classifiers...

Tài liệu Báo cáo khoa học: An allosteric DNAzyme with dual RNA-cleaving and DNA-cleaving activities doc

... concentration of Cu2+, with optimum activityACB5′5′Fig. 1. Sequence and predicted secondarystructures of original DNAzymes and thereconstructed DNAzyme. (A) Sequence andsecondary structure of ... allostericDNAzyme with dual RNA-cleaving and DNA-cleaving activities is verychallenging. We used an in vitro-selected pistol-like (PL) DNAzyme as aDNA scaffold for designing a DNAzyme with dual catalytic ... andsecondary structure of 8–17 variantDNAzyme. The capital letters representdeoxyribonucleotides, and the small lettersrepresent ribonucleotides. (C) Sequence andsecondary structure of the...

Tài liệu Báo cáo khoa học: DNA modiﬁcation with cisplatin affects sequence-speciﬁc DNA binding of p53 and p73 proteins in a target site-dependent manner pptx

... protein with cer-tain response elements can be controlled by changes inDNA topology inducing formation of non-B DNAstructures within the binding sites [11,12]. Interactionsof p53 with DNA ... cisplatin DNA treatmentcorrelated with the occurrence of sequence motifs forming stable bifunc-tional adducts with the drug (namely, GG and AG doublets) within thetarget sites. Binding of ... was observed with the anticancer tri-nuclear platinum complex BBR3464 but not with theclinically ineffective transplatin. Quite recently, it hasbeen shown that DNA modiﬁcation with a transplatinanalog,...

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