Tài liệu Báo cáo khoa học: "Using adaptor grammars to identify synergies in the unsupervised acquisition of linguistic structure" docx

... it gives us a way of learning theseinteracting linguistic structures simultaneously. Adaptor grammars are also interesting becausethey can be viewed as directly inferring linguistic structure. ... astheir probabilities. We present several differ-ent adaptor grammars that learn to segmentphonemic input into words by modeling dif-ferent linguistic properties of the input. One of the ... parse of thatstring with a PCFG approximation to the adaptor grammar. This PCFG contains a production for eachadapted subtree in the parses of the other strings in the training corpus. A ﬁnal...

Tài liệu Báo cáo khoa học: "Using Smaller Constituents Rather Than Sentences in Active Learning for Japanese Dependency Parsing" docx

... incrementrate of the number of support vectors in SVM in- dicates saturation of accuracy improvement dur-ing iterations of active learning(Schohn and Cohn,2000). It is interesting to examine ... examine whether the observation for SVM is also useful for supportvectors7 of the averaged perceptron. We plottedchanges of the number of support vectors in the cases of both PASSIVE and MIN in Figure ... andchanges of the number of support vectors in the case of MODSIMPLE in Figure 12. We observedthat the increment rate of support vectors mildlygets smaller. However, it is not so clear as in the case...

Tài liệu Báo cáo khoa học: An immunomodulator used to protect young in the pouch of the Tammar wallaby, Macropus eugenii pptx

... asstimulation of the proliferation of lymphocytes, activa-tion of CCK receptors stimulate production of inter-leukins and secretion of immunoglobulins on the mucosal surface of the intestine [49,50]. The ... effect of the muscarinic blocker atropine wasinvestigated. Atropine had no effect on the response of CCK-8, but substantially reduced the response to euge-nin, indicating that eugenin is indeed ... abundance to the baseline.Structure determination of eugeninBecause eugenin has an N-terminal pGlu residue,automated Edman sequencing [28] cannot be used to determine the amino acid sequence of this...

Tài liệu Báo cáo khoa học: "Using Multiple Sources to Construct a Sentiment Sensitive Thesaurus for Cross-Domain Sentiment Classiﬁcation" doc

... andwe use these values for the remainder of the experi-ments described in the paper.5.3 Combining Multiple SourcesFigure 2 shows the effect of combining multiplesource domains to build a ... u). In the remainder of the paper, we use the term base en-try to refer to a lexical element u for which its relatedlexical elements v (referred to as the neighbors of u)are listed in the thesaurus. ... element djis set to the total number of occurrences of the unigram or bigram wj in the review d. To ﬁnd the suitable candidates to expand avector d for the review d, we deﬁne a ranking scorescore(ui,...

Tài liệu Báo cáo khoa học: "USING BRACKETED PARSES TO EVALUATE A GRAMMAR CHECKING APPLICATION" ppt

... the Crossing Parenthesis Score (a count of the number of phrases in the machine produced parse which cross with one or more phrases in the hand parse), Recall (the percentage of phrases in ... hand-bracketed parses to examine both the internal and external performance of a grammar checker. The internal performance refers to the behavior of the underlying system i.e, the toke- nizer, ... aspects of the standard that require deep under- standing, e.g. the stricture against using a word in any sense other than the approved one, or the re- quirement to begin paragraphs with the topic...

Tài liệu Báo cáo khoa học: Oxidized elaﬁn and trappin poorly inhibit the elastolytic activity of neutrophil elastase and proteinase 3 pdf

... the theoretical inhibitor, regardless of the enzyme, the inhibitor and the state of oxidation of the latter, indi-cating that elastin does not simply act as a competingsubstrate but also hinders ... dissociation of the oxidized inhibitor–NE complex was slow enough to be insigniﬁcant during the 20–60 s time period used to measure the activities of the inhibitory mixtures.Therefore, the K of Eqn ... excess of inhibitorover enzyme, we observed full inhibition of both pro-teinases by the native inhibitors, but only % 80% inhi-bition of NE and 50% inhibition of Pr3 by the oxidized inhibitors.While...

Tài liệu Báo cáo khóa học: Point mutations associated with insecticide resistance in the Drosophila cytochrome P450 Cyp6a2 enable DDT metabolism doc

... CYP102A1 provided clues to the positions of the amino acids mutated in CYP6A2. These mutations werefound spatially clustered in the vicinity of the distal end of helix I relative to the substrate recognition ... obtained with the CLUSTALXsoftware. To obtain information about the spatial positions of the mutations, their similar positions were determined on the structure of CYP102A1, this protein is the ... respectively. Thesevariations of the ratios of the metabolites suggest modiﬁ-cations in the catalytic mechanism responsible for the metabolism of DDT.Substrate binding The substrate induced binding...

Tài liệu Báo cáo khoa học: "Using Cross-Entity Inference to Improve Event Extraction" docx

... measuring the similarity of the type de-scriptions. Finally, given the priori attributes of events in the training data, with the help of the en-tities of the same type, we perform the step-by-step ... distinguishing events of different types, finding the participants of an event and determin-ing the roles of the participants. The recent researches on the task show the availability of transductive ... training and testing processes. Figure 3. The frame of cross-entity inference for event extraction (including training and testing processes) In the training process, for every entity type in...

Tài liệu Báo cáo khoa học: "Using Structural Information for Identifying Similar Chinese Characters" pdf

... part of the characters in the right group in the second row in Figure 3 appears in different places in the characters. Lexicographers employ radicals of Chinese characters to organize Chinese ... listed in different sections in the dictionary. 2.2 Encoding the Chinese Characters The Cangjie‡ method is one of the most popular methods for people to enter Chinese into com-puters. The ... radicals of the characters, so we can find the characters of the same group in the same section in a Chinese dictionary. However, information about radicals as they are defined by the lexicographers...

Tài liệu Báo cáo khoa học: "Using Automatically Transcribed Dialogs to Learn User Models in a Spoken Dialog System" doc

... St. The user state consists of three bits: one bit indi-cating whether the system has correctly recognized the callee’s name, one bit indicating whether the system has correctly recognized the ... value for θ, and then generated syn-thetic dialogs by following the probabilistic processdepicted in Figure 1. In this way, we were able to create synthetic training sets of varying sizes, as ... callee they wish to beconnected to. The system then requests additional122information from the user, such as the callee’s lo-cation and type of phone (of ce, cell). Here is asmall fragment of...

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