Báo cáo khoa học: "Four Techniques for Online Handling of Out-of-Vocabulary Words in Arabic-English Statistical Machine Translation" docx

... Universityhabash@ccls.columbia.eduAbstractWe present four techniques for online han-dling of Out -of- Vocabulary words in Phrase-based Statistical Machine Translation. The techniques use spelling expansion, morpho-logical ... four techniques for online handling of Out -of- Vocabulary (OOV) words in phrase-based Statistical Machine Translation (SMT).1The tech-niques use morphological expansion (MORPHEX),spelling expansion ... preprocessing simply in- cluded down-casing, separating punctuation from words and splitting off “’s”.OOV Handling Techniques and their Combina-tion We compare our baseline system (BASELINE)to...

Báo cáo khoa học: "Offline Strategies for Online Question Answering: Answering Questions Before They Are Asked" ppt

... Integer Frequency of concept head in CN/PN Integer Frequency of concept head in APOS Instance Features Integer Number of lexical items in instance Binary Instance contains honorific Binary ... Binary Instance contains common name Binary Instance ends in honorific Binary Instance ends in common name Binary Instance ends in determiner Case Features Integer Instance: # of lexical ... Offline Strategies for Online Question Answering: Answering Questions Before They Are Asked Michael Fleischman, Eduard Hovy, Abdessamad Echihabi USC Information Sciences Institute...

Báo cáo khoa học: "Dialect Classification for online podcasts fusing Acoustic and Language based Structural and Semantic Information" pot

... text of 300 words. Table 1 summarizes the text material for three family-tree branches of Eng-lish, containing 474k words and 1325 documents. No. of Documents Dialect No .of words Train ... Sec 4 explains the baseline acoustic classifier. Language classifiers are described in Sec 5 and the results which are presented in Sec 6 affirm that combining various sources of information ... outperforms the traditional (or individual) techniques used for dialect classification. 2 Online Podcast Database The speech community has no formal corpus of audio and text across dialects of...

Báo cáo khoa học: "Annealing Techniques for Unsupervised Statistical Language Learning" ppt

... 2,000sentences (48,526 words) for testing. The remain-ing 47,208 sentences (1,125,240 words) were used in training, without any tags. The tagging dictionarywas constructed using the entire corpus ... analogies to statistical physics (includingphase transitions and the role of β as the inverse of temperature in free-energy minimization) are referred to Rose (1998) for athorough discussion.Input: ... training likelihood on ﬁve trials,and better test likelihood on all ten trials.10Cer-tainly decreasing the amount of data by an order of magnitude results in increased variance of the per-formance...

Tài liệu Báo cáo khoa học: Complex transcriptional and translational regulation of iPLA2c resulting in multiple gene products containing dual competing sites for mitochondrial or peroxisomal localization docx

... resulting in loss of theAUG initiating translation of the 88 kDa isoform. Wespeciﬁcally point out that differential utilization of exon 1vs. exon 2 in splice variants introduces differing upstreamORFs ... proﬁles and proteinchemical techniques including radiolabeling with [3H]BEL[7–12]. Study of human heart PLA2underscored thecomplexity of multiple distinct isoforms of iPLA2 in thecytosolic, ... virtue of the absence of any N-terminal mitochondrial leader sequence in thisisoform.DiscussionAfter t he initial discovery of a novel intrace llular c alcium-independent PLA2activity in myocardium...

Tài liệu Báo cáo khoa học: Different mechanisms for cellular internalization of the HIV-1 Tat-derived cell penetrating peptide and recombinant proteins fused to Tat docx

... appearsunlikely. The number of arginine residues within the Tatpeptide appeared to be the main determinant for main-taining a high translocating activity as pre viously shown byalanine-arginine substitution ... theN-terminal domain of these proteins [6]. Cellular internal-ization of this peptide fused to b-galactosidase was evenobserved in vivo in various tissues including the brain afterintraperitoneal injection ... alloweddelineation of the t ranslocating activity domain t o a13-mer amino-acid sequence [9]. This sequen ce containssix arginine residues and two lysine residues within a linearsequence of 13 amino...

Báo cáo khoa học: Structural evidence for a constant c11 ring stoichiometry in the sodium F-ATP synthase doc

... 2 lg of pure c11with 2 lgofc1puriﬁed in detergent, the slower migrating bandreappeared (lanes 4 and 8). Upon incubation of 2 lg of pure c11with 2 and 10 lgofc1puriﬁed in chloroform ⁄ ... accumulation of theincomplete c10complex in the recombinant c ringpreparations suggests that the insertion of the last csubunit forms the limiting step in the assembly process of a functional ... the size of the ring isnot changed by massive overexpression of subunit c in the E. coli host cells, indicating that intrinsic fea-tures of the monomeric unit determine the number of subunits...

Báo cáo khoa học: " A Tool for Error Analysis of Machine Translation Output" doc

... with main informa-tion, and then an item for each menu containing:• The name of the menu• A list of menu items, containing:– Display name– Internal name (used in annotation file, andinternally ... of new modules for preprocessing. BLAST has threeworking modes for handling error annotations: for adding new annotations, for editing existing annota-tions, and for searching among annotations.BLAST ... StymneDepartment of Computer and Information ScienceLinköping University, Linköping, Swedensara.stymne@liu.seAbstractWe present BLAST, an open source tool for er-ror analysis of machine translation...

Báo cáo khoa học: "A System for Semantic Analysis of Chemical Compound Names" pdf

... of BioNLP is to automatically supporthumans by means of research in the area of infor-mation retrieval, data mining and information ex-traction. Term identification is of great importance in ... task into the subtasks of term recognition (marking the interesting words in a text), term classification (classifying them ac-cording to a taxonomy or an ontology) and termmapping1(identifying ... representation formatsare SMILES strings (Simplified Molecular InputLine Entry System (Weininger, 1988)) and In- ChIs2. For example, a SMILES string such asCC(OH)CCC unambiguously describes a chain of five...

Báo cáo khoa học: "Hybrid Methods for POS Guessing of Chinese Unknown Words" pot

... contextual information and the like-lihood for a character to appear in a par-ticular position of words of a particularlength and POS category. By combiningmodels that use different sources of infor-mation, ... POS information about the component words or morphemes of many unknown words isavailable in the training lexicon. Second, Wu andJiang (2000) argued that assigning POS to Chineseunknown words ... (2000).Combination of the three models will be based onthe evaluation of their individual performances onthe training data.4.1 The Rule-Based ModelThe motivations for developing a set of rules for...

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