Báo cáo khoa học: " Predictive mortality models are not like fine wine" ppt

... summary, unlike fine wine, models for predicting ICU mortality do not age well. The article by Le Gall et al. providesan interesting footnote in the history of critical care mortality models. Beyond ... performance of five intensive care scoring models within a large Scottish database. Crit Care Med 2000,28:1820-1827.7. Popovich MJ: If most intensive care units are graduating withhonors, is ... rule of not includingdiagnostic variables and add a binary variable for the drugoverdose patients. In effect, they are acknowledging thatdiagnostic information is useful in mortality models. ...

Tài liệu Báo cáo khoa học: "Automatic Satire Detection: Are You Having a Laugh?" ppt

... dictionary deﬁnition marked as slang and 0if it does not. It is important to note that this measure of “in-formality” is approximate at best. We do not at-tempt, e.g., to disambiguate the sense of ... corpus showsthat this is not the case with satirical news, whichoccasionally uses profanity as a humorous device.Let P be a binary feature indicating whetheror not an article contains profanity, ... foreach article. Discrete features highi and lowi are set as:highidef={1 v >¯i + 2σ;0lowidef={1 v <¯i − 2σ;0where¯i and σ are, respectively, the mean and stan-dard deviation...

Báo cáo khoa học: Biochemical network models simpliﬁed by balanced truncation ppt

... varia-bles are hidden inside the modules. A large model issplit into subsystems, and linearization and complex-ity-reduction are applied to those ) possibly large )parts that are not in the ... ATP « ADP (where inor-ganic phosphate is not explicitly considered). Theremaining reactions are not related to ATP, ADP, orAMP. If all metabolites are modelled explicitly, theconcentrations ... permitted error size.If we are interested in preserving the passivity of the system,that is, to obtain a reduced system which cannot produceenergy internally, we have to apply another model reductionroutine...

Báo cáo khoa học: "NATURAL LANGUAGE TEXTS ARE NOT NECESSARILY GRAMMATICAL OR EVEN COMPLETE" pot

... However, it was one thing to be prepared for struc- tural diversity; it was quite another thing to be faced with the fact that our business letters are not some small to moderate subset of ... "NATURAL LANGUAGE TEXTS ARE NOT NECESSARILY GRAMMATICAL AND UNAMBIGUOUS OR EVEN COMPLETE." Lance A. Miller Behavioral ... be yet once more incomplete. But it was not only the incompleteness of the grammar (for correct sentences) that gave us trouble: many words were not recognized, sometimes sentences were...

Báo cáo khoa học: "Exemplar-Based Models for Word Meaning In Context" pptx

... etal. (2009, TDP09). The results in Table 4 comparethese models against our best previous exemplar models and show that our models outperform these models across the board.3Due to the small sizesof ... differences amongour models are not signiﬁcant, but the differencebetween them and the original EP09 model is.4OnEP08, al l differences are signiﬁcant except for actPvs. actTP.We note that both ... frequency.Comparison to other models. Many of theother models are syntax-based and are thereforeonly applicable to a subset of the LexSub data.We have re-evaluated our exemplar models on thesubsets...

báo cáo khoa học: " Multi-locus models of genetic risk of disease" pptx

... the models unlikely to be detectable in practiceSince we reject the additive and Risch models, we concen trate on the comparison of the CRisch, Odds and Probit models. We chose to compare models ... other models, so that all three models are benchmarked by K and τ. The shape of the relationship is not dependent on the choice of n and p; the τ when h2L = 0.1, 0.3, 0.5, 0.7 and 0.9 are listed ... erences between models are small (Additional ﬁ le 3) and could not be demonstrated in practice given the sampling errors of the parameters.  us, the three models could not be distinguished...

Tài liệu Báo cáo khoa học: "N Semantic Classes are Harder than Two" doc

... all high-weighted features are eitherHTML paths or query log features; these are theones that are easiest to obtain. Many of thehighest-weight HTML tree features are symmet-ric, e.g. both ... change X and Y are related and X or Y is a URL alliance; alliance.com 29.8other relationship X and Y are related in some other way ﬂagpoles; ﬂags 9.8no relationship X and Y are not related in ... peculiarities of ourdata. That is not unexpected: since words that ap-pear in WordNet are very common, features are much noisier than features associated with queryentities that are often structured within...

Tài liệu Báo cáo khoa học: "Distributional Similarity Models: Clustering Neighbors" doc

... belong mostly to the same cluster (dotted ellipse), the two nearest neighbors to A are not the nearest two neighbors to B. like to control the degree of compression of C relative to N, ... p(vln) = ~-]p(vlc)p(cln) c • nearest-cluster estimate: ~(vln) p(vlc*), where c* maximizes p(c*ln). 2.2 Nearest-neighbors averaging As noted earlier, the nearest-neighbors averaging method ... however, we are working with two models which, while representing opposite extremes in terms of generalization, share enough features to make the comparison meaningful. First, both models use...

Tài liệu Báo cáo khoa học: "Incremental Parsing Models for Dialog Task Structure" doc

... Hellocomplete-opening,Helloopening S, HelloB Yes Not( Information), shift,binary-reduce-out-of-domain Not( Information),complete-opening Not( Information), open-ingSB Um I would like to placean order pleaseRquest(Make-Order), ... with rare dialog acts, Not( Information),and the prediction of Acknowledge at the start of aturn (we did not remove grounding acts from thedata). With the shift-reduce method, some YNQacts are ... These fea-ture vectors and the associated parser actions are used to train maximum entropy models (Berger etal., 1996). These models are then used to incre-mentally incorporate the utterances...

Tài liệu Báo cáo khoa học: "Cascaded Markov Models" pptx

... partial structures are determined by additionally using Markov Models. While building the structure bottom up, parses that are unlikely according to the Markov Models are pruned. 3.2 The ... several areas 'the dismissal of the federation from several areas that was intended by the government' Figure 6: Complex German NP and chunker output (postnominal genitive and PP are not ... context-free grammar. While building the structure bottom up, parses that are unlikely according to the Markov Models are pruned. We think that a combined probability measure would improve the...

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