Báo cáo khoa học: "Estimating Upper and Lower Bounds on the Performance of Word-Sense Disambiguation Programs" docx

... Lower Bounds We could be in a better position to address the question of the relative difficulty of interest if we could establish a rough estimate of the upper and lower bounds on the level of ... reported on two new word-sense disambiguation systems, one trained on bilingual material (the Canadian Hansards) and the other trained on monolingual material (Roget's Thesaurus and Grolier's ... hand. Apparently, the literature on evaluation of word-sense disambiguation algorithms fails to offer a clear role model that we might follow in order to quantify the performance of our disambiguation...

Tài liệu Báo cáo khoa học: "From HOPE en I''''ESPERANCE On the Role of Computational Neurolinguistics in Cross-Language Studies " pptx

... depending on the input, interconnections to other information, and an automatic activity decay scheme. In addition, the decay scheme is based on the state of the information, whether it has ... result of activation of a pragmatic representation of a disambiguated word meaning. It is the in interaction of the results of these asynchronous processes that the process of comprehension ... other methods, because it enables one to develop a broader perspective of the questions within an analysis of the hypothesis in the context of a characterization of the "how" of...

Tài liệu Báo cáo khoa học: "Language Resources Factory: case study on the acquisition of Translation Memories" potx

... to continue processing the rest of the input data if the workflow is robust (i.e. makesuse of retry and parallelisation) and the error isconfined to a WS (i.e. it does not affect the rest of the ... al., 2012).Another aspect of the factory that is being eval-uated is its performance and scalabilty. They donot depend on the factory itself but on the design of the workflows and WSs. WSPs ... Proceedings of the 13th Conference of the European Chapter of the Association for Computational Linguistics, pages 1–5,Avignon, France, April 23 - 27 2012.c2012 Association for Computational LinguisticsLanguage...

Báo cáo khoa học: "Last but Definitely not Least: On the Role of the Last Sentence in Automatic Polarity-Classification" pdf

... polarity-classification, the last proposition of a given text should be of greater importance than the first one (contrary to topic-extraction). Based on preliminary investigations, we sug-gest that the DT of ... session and had an unlimited time to reflect and decide on the polarity of each text. Five seconds after a decision was made (as to whether the reviewer was in favor of the product or not), the ... that location would have been either considerably shorter or longer (de-pending on its distance from the initial location of the mouse curser at the beginning of each trial), and the mouse...

Tài liệu Báo cáo khoa học: Membrane targeting and pore formation by the type III secretion system translocon pdf

... characteristics and response to pore formation The composition of the host cell membrane appears tobe a critical point for the invasion of bacteria, insertion of translocators and functionality of the pore. ... PcrV and LcrV hamper the insertion of the translocationpore into membranes as well as its functionality [105].Thus, its position at the tip of the secretion needle and its importance in the ... formation of the Pop translocon on the eukaryotic membrane, tox-ins produced in the bacterial cytoplasm release their cognate chaperones and are injected through the translocon pore and into the...

Tài liệu Báo cáo khoa học: Structure determination and biochemical studies on Bacillus stearothermophilus E53Q serine hydroxymethyltransferase and its complexes provide insights on function and enzyme memory doc

... occupancy of 0.6 is present close to the positioncorresponding to the second conformation of the carboxylate group (Fig. 2A,B). The hydrogen bondingbetween Q53 and the second conformation of carbo-xylate ... presence of small amount of quinonoid intermediate. The for-mation of the quinonoid intermediate requires abstrac-tion of a proton from the a-carbon atom of the boundFig. 1. Conformation of residues ... respectively.Upon the addition of FTHF to the binary complex of E53QbsSHMT-Gly, the color of the solution chan-ged from yellow to pink, indicating the formation of aquinonoid intermediate. However by the...

Tài liệu Báo cáo khoa học: Endogenous expression and protein kinase A-dependent phosphorylation of the guanine nucleotide exchange factor Ras-GRF1 in human embryonic kidney 293 cells pptx

... (NM_002891,GI:24797098) gave PCR products of expected size(Fig. 1B). The primer sequences are located at the 5¢ end (ON3 61, ON3 60 and ON3 59) and in the middle (ON3 57 and ON3 58) of the human Ras-GRF1 nucleo-tide ... effect of CAI on the increased basal phosphorylation of ERK1 ⁄ 2 observedupon cotransfection with HA-Ras-GRF1 (Fig. 7A). On the other hand, the serotonin-induced phosphory-lation of HA-Ras-GRF1 ... mediates activation of Ras subsequent to the stimulation of Gi- and Gq-coupled receptors [8,9]. The main mechanism for the activation of Ras-GRF1 is the binding of Ca2+⁄ CaM to the N-terminalIQ...

Tài liệu Báo cáo khoa học: "Identifying Agreement and Disagreement in Conversational Speech: Use of Bayesian Networks to Model Pragmatic Dependencies" docx

... as:is the vector of observations and each is the index of a spurt. The probability dis-tribution associated with each state of the Markov chain only depends on the preceding tag and the local ... features:number of speakers taking the ﬂoor between A and Bnumber of spurts between A and Bnumber of spurts of speaker B between A and Bdo A and B overlap?Durational features:duration of Aif A and ... the previous/next spurt of the same speaker?is the previous/next spurt involving the same Bspeaker?Durational features:duration of the spurtseconds of overlap with any other speakerseconds...

Tài liệu Báo cáo khoa học: "Universal Grammar and Lexis for Quick Ramp-Up of MT Systems" doc

... description of the use of all of the above resources is beyond the scope of this paper, we will give a few brief illustrations. The list of English word senses seeds the acquisition of the SL ... ambiguous word senses on the one hand and the senses of other words in their context. SL syntactic information helps to guide the disambiguation process by providing additional constraints. Thus, ... environment which Boas serves allows for simplification of both system implementation and the acquisition process compared to the case of multiple SLs and TLs. First, only one text synthesis...

Báo cáo khoa học: A new and efﬁcient method for inhibition of RNA viruses by DNA interference pptx

... compilation ª 2009 FEBS 4377DNAi are the lower cost of dsDNA synthesis and the lack of necessity for further DNA modiﬁcation. Theseobservations may open a new path towards the use of dsDNA ... Inoculations were car-ried out on one-half of a fully expanded leaf of at leastthree tobacco plants for one assay by gently rubbing the leaf surface with the inoculum. The opposite half of the leafserved ... 5¢-AAGTGTACATATGCTCGTCCCCCTGTCTC-3¢ and a Silencer siRNA Con-struction Kit (Ambion, Austin, TX, USA). The sequence of the anti-TMV siDNA sequence sense strand is 5¢-AACTTCCAAAAGGAAGCATTT-3¢, and that of the antisense strand...

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