Báo cáo khoa học: "Joint Hebrew Segmentation and Parsing using a PCFG-LA Lattice Parser" docx

... unlexicalized, treebank-derived gram-mars, and showed that better grammars contributeto better segmentation accuracies. Goldberg et al.(2009) showed that segmentation and parsing ac-curacies can ... Hebrew Segmentation and Parsing using a PCFG-LA Lattice ParserYoav Goldberg and Michael ElhadadBen Gurion University of the NegevDepartment of Computer SciencePOB 653 Be’er Sheva, 84105, Israel{yoavg|elhadad}@cs.bgu.ac.ilAbstractWe ... can admit as many as 15 distinctreadings.Agreement Hebrew grammar forces morpholog-ical agreement between Adjectives and Nouns(which should agree on Gender and Number and deﬁniteness), and...

Tài liệu Báo cáo khoa học: "Joint Word Segmentation and POS Tagging using a Single Perceptron" docx

... Treebank data, the joint model gave an errorreduction of 14.6% in segmentation accuracy and 12.2% in the overall segmentation and tagging accu-racy, compared to the traditional pipeline approach.In ... language modeling and utterance classiﬁca-tion (Saraclar and Roark, 2005) and labeling and chunking (Shimizu and Haas, 2006). Though ourmodel is built speciﬁcally for Chinese word segmen-tation ... character)12tag t on a word starting with char c0 and containing char c13tag t on a word ending with char c0 and containing char c14tag t on a word containing repeated char cc15tag...

Báo cáo khoa học: "Dictionary Definitions based Homograph Identification using a Generative Hierarchical Model" docx

... discarded, leaving a set of 202 words (the “gold standard”) on which at least 3 of the 4 annotators agreed. The best agreement between the gold standard and a human annotator was 0.87 kappa, ... likelihood estimators (MLE) for estimating the parameters (p, Θz). The MLEs for Bernoulli and MVN parameters have analytical solutions. Dirichlet parameters were es-timated using an estimation method ... than in verbs, adverbs or adjectives. 3.1 Gold Standard Data A set of potentially-homographic nouns was identi-fied by selecting all words with at least two noun definitions in both CALD and...

Báo cáo khoa học: "Joint Identiﬁcation and Segmentation of Domain-Speciﬁc Dialogue Acts for Conversational Dialogue Systems" doc

... error and the standard deviation. The largest average er-ror happens with the data annotated with multipledialogue acts. In that case, the extracted segmentshave a starting and ending point that ... di-alogue act, and 375 utterances contain multiple dia-logue acts, according to manual dialogue act anno-tation. Within the set of utterances that contain mul-tiple dialogue acts, the average ... whichclassiﬁcation problem into several binary classiﬁers, describedas PT4 by Tsoumakas and Katakis (?).4In our dataset, our method takes on average about 102msto process an utterance that was...

Báo cáo khoa học: "Semantic Discourse Segmentation and Labeling for Route Instructions" potx

... detec-tion and tracking, and one segment of the text.In order to annotate unambiguously, we need todetect and track both landmarks and actions. A landmark is a hallway or a door, and an actionis a ... 7Table 1: Example Parts: linear-chain CRFsinvolves exactly one landmark, we can label thesegment with an action and a specific landmark.For example,GHR1 := ”advance to the first hallway on ... a landmark. Note that all three moveshave to do with the same landmark, and two orthree moves on the same landmark constitute oneaction. An action is ambiguous until x is filledwith an unambiguous...

Báo cáo khoa học: "SVM Model Tampering and Anchored Learning: A Case Study in Hebrew NP Chunking" pdf

... to PoS tagging errors, and its gener-alization capability even with a reduced number oflexical features.Another implication of this data is that commas and quotation marks play a major role ... toanother language: (1) acquiring high quality anno-tated data; (2) adapting the English task deﬁnitionto the nature of a different language, and (3) adapt-ing the algorithm to the new language. ... features of hard-to-classify cases, we can228actively look for such cases by training an SVMchunker on anchored data (as the anchored data isguaranteed to be linearly separable, we can set averyhigh...

Tài liệu Báo cáo khoa học: Identiﬁcation, sequencing, and localization of a new carbonic anhydrase transcript from the hydrothermal vent tubeworm Riftia pachyptila docx

... Strongylocentrotuspurpureus and F. scutaria larvae sequences have a H64 also shared by A. gambiae, A. aegypti, T. gigas,D. melanogaster-2 and D. melanogaster-3 sequences(data not shown). By contrast, R. pachyptila aminoacid ... GTT ACT TCC GCA GCT AGG 466–483Probe ampliﬁcation for FISHRpCAbrF TAC AAG GAT GCC ATT AGC 613–630RpCAbrR1 CGT AGC AGT ATC AGC AGT 822–839RpCAtrFprobe TAC AAA GAT CCA ATC CAG C 616–634RpCAtrRprobe ... sequenced RpCAtr (BPNJ¼ 100 and BPMP¼ 99). Fungia scutaria (FCA -a and FCA-b) and Caenorhabditis elegans (CA1 and CA2) sequences falloutside of clade I and are more closely related to eachother...

Tài liệu Báo cáo khoa học: Analysis of proteins and peptides on a chromatographic timescale by electron-transfer dissociation MS ppt

... electroninto an amide carbonyl group that is hydrogen bondedto the protonated side chain of a basic amino acid.The resulting radical anion abstracts a proton and gen-erates a radical site that triggers ... to a mass spectrometer equipped for ESI; (c)fragmentation of individual peptides by collision-acti-vated dissociation (CAD); and (d) a search of theresulting tandem mass spectra against a database ... 2007)doi:10.1111/j.1742-4658.2007.06148.xPeptide and protein sequence analysis using a combination of gas-phaseion–ion chemistry and tandem MS is described. Samples are converted tomultiply charged ions by ESI and then allowed to react...

Tài liệu Báo cáo khoa học: ATP-dependent modulation and autophosphorylation of rapeseed 2-Cys peroxiredoxin docx

... vector] as 5¢-primer and 5¢-TCTCCGTAGGGGAGACAAAAGT-3¢,5¢-ATCCCGCGGGGGAAACCTCATC-3¢ and 5¢-CTGTTTGGACGAACGCAAGATG-3¢as 3¢-primers for C53S, C175S and W88F variants, respec-tively (mutated codons ... suchas reductants and ROS. An imbalance between thesedual functions is probably associated with manyhuman pathologies, such as thyroid tumors, breast and lung cancer, Alzheimer’s disease and ... and autophosphorylationof rapeseed 2-Cys peroxiredoxinMartin Aran1, Daniel Caporaletti1, Alejandro M. Senn1, Marı a T. Tellez de In˜on2, Marı a R. Girotti1,Andrea S. Llera1and...

Tài liệu Báo cáo khoa học: "Hand-held Scanner and Translation Software for non-Native Readers" docx

... off-line)material in foreign languages. It consistsof a hand-held scanner and sophisticated parsing and translation software to providereaders a limited number of translationsselected on the basis of a ... terminological help based on a full linguisticanalysis of the source material. TwicPen uses a very similar technology, but is available on per-sonal computers (or even PDAs) and uses a hand-held scanner ... which canbe as short as one word or as long as a wholesentence or even a whole paragraph.• The text appears in the user interface of theTwicPen system and is immediately parsed and tagged...

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