an improved redundancy elimination algorithm
Tài liệu Báo cáo khoa học: "An Improved Redundancy Elimination Algorithm for Underspecified Representations" pdf
... complete chart of a dominance graph. Thismeans we can remove eliminable splits from achart repeatedly, i.e. we can apply the following redundancy elimination algorithm: REDUNDANCY- ELIMINATION( Ch, R)1 ... we can say that there is nooverhead for redundancy elimination in practice.6 ConclusionWe presented an algorithm for redundancy elimina-tion on underspecified chart representations. This algorithm ... rela-tive scope of “the lee of” and “a small hillside.”In this paper, we present an algorithm for the redundancy elimination problem: Given an USR,compute an USR which has fewer readings,...
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Báo cáo y học: " Derivation and preliminary validation of an administrative claims-based algorithm for the effectiveness of medications for rheumatoid arthritis"
... made substantial contributions to conception and design, and to the analysis and interpretation of the data. TRM and GWC handled acquisition of data. All authors contributed to the manuscript ... comorbidity 10 - Clinically stable or improved and patient/physician satisfied, but DAS and DAS change did not meet gold standard effectiveness criteria 4 - Physician recognized inadequate response, ... addressing important intellectual content. All authors read and approved the final manuscript for publication. Acknowledgements We would like to thank Mike Connor and Sheryl Berryman at the Birmingham...
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Tài liệu Báo cáo khoa học: Biosynthesis of riboflavin Screening for an improved GTP cyclohydrolase II mutant pdf
... Biosynthesis of riboflavinScreening for an improved GTP cyclohydrolase II mutantMartin Lehmann1, Simone Degen1, Hans-Peter Hohmann1, Markus Wyss1, Adelbert Bacher2andNicholas Schramek21 DSM ... produced per year for use in human nutrition,animal husbandry and as a food colorant. In recentyears, efficient fermentation processes have replacedchemical synthesis for manufacturing the vitamin ... Switzerland). LB (Luria–Bertani)medium was from Becton Dickinson (Basel, Switzerland).Generation of mutant librariesFor the generation of the ribA mutant library, the plasmidpQE60-ribANhis...
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Tài liệu Báo cáo khoa học: "An Improved Parser for Data-Oriented Lexical-Functional Analysis" doc
... frontier nodes and deletes allsubtrees they dominate. Like Root, it alsoremoves the φ links of the deleted nodes anderases any semantic form that corresponds to anyof those nodes. For instance, if ... random from amongthe fragments that can be composed with thecurrent subanalysis. The chosen fragment iscomposed with the current subanalysis to producea new one; the process stops when an ... Category-matching and Uniqueness; and the third definitiongroups all fragments which satisfy Category-matching, Uniqueness and Coherence. Bod &Kaplan point out that the Completeness conditioncannot...
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Tài liệu Báo cáo khoa học: "AN EXTENDED LR PARSING ALGORITHM FOR GRAMMARS USING FEATURE-BASED SYNTACTIC CATEGORIES " pot
... pe,forms instanliation tit)ring parsing. Some details of the LR parsing algorithm are assumed from Aho and Ullman (1987) and Aho and Johnson (1974), and more formal definitions and notations ... AN EXTENDED LR PARSING ALGORITHM FOR GRAMMARS USING FEATURE-BASED SYNTACTIC CATEGORIES Tsuneko Nakazawa Beckman Institute for Advanced Science and Technology and Linguistics ... Pollard, Carl and Ivan A. Sag 1987. Information-Based Syntax and Semantics VoI.1. CSLI Lecture Notes 13. Stanford: CSLI. Shieber, S. 1985. "Using Restriction to Extend Parsing Algorithms...
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Báo cáo khoa học: "An Improved Heuristic for Ellipsis Processing*" ppt
... with change in person) (replacement) (expansion) (expansion) (expansion) (expansion) (expansion & repetition) In addition to appearing as answers fol- lowing questions, any of the ... Example Expansion Paths Since this is an extension to the ellipsis interpreter, combinations of repetition, replacement, and expansion can all be han- dled by the one mechanism. For instance, ... aspect, and mo- dality elements would simplify some of the transformations and expansion paths. ~aturally, semantics must play an important part in ellipsis processing. Consider the utterance...
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Arsenic fractionation in soils using an improved sequential extraction procedure
... ratio.bZeien and Brümmer [5].cHan and Banin [22].dChang and Jackson [15].as the difference between total C and the inorganiccarbon content estimated from the carbonate content.The cation exchange ... its inclusion may be usefulfor soils with abundant organically-bound Al and/orimogolite and allophanic minerals such as in volcanicAndisols and some Podsols [12].A carbonate extraction step ... Hamilton-Taylor, Anal. Chem. 57 (1985) 1944.[21] K. Saeki, S. Matsumoto, Commun. Soil Sci. Plant Anal. 25(1994) 2147.[22] F.X. Han, A. Banin, Commun. Soil Sci. Plant Anal. 26 (1995)553.[23] U. Schwertmann,...
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Báo cáo khoa học: "AN OPTIMAL TABULAR PARSING ALGORITHM" pdf
... cannot handle left recursion and is generally less efficient. Nondeterministic LC parsing is the foundation of a very efficient parsing algorithm [7], related to Tomita's algorithm and ... and the right-hand side (rhs) a is an element from V*, where V denotes (NUT). P can also be seen as a relation on N × V*. We use symbols A, B, C, to range over N, symbols a, b, c, to range ... [3"/1 and a2 = [3'/2, for some '/1 and '/2, where [3 ¢ e. A recognition algorithm can be specified by means of a push-down automaton A = (T, Alph, Init, ~-, Fin), which manipulates...
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Báo cáo khoa học: "An Optimal-Time Binarization Algorithm for Linear Context-Free Rewriting Systems with Fan-Out Two" ppt
... values r(g) and f(g)are called the rank and fan-out of p, respectively,written r(p) and f(p). The rank and fan-out of G,written r(G) and f(G), respectively, are the max-imum rank and fan-out among ... loop invariant is thatX is a 2-feasible set, and that the union of all po-sition sets in X has fan-out ≤ 2: reductions cannever change the union of all sets in X , and The-orem 1 guarantees us ... has fan-out ≤ 2)and that it cannot equal ED1D2because this wouldmean that X = {D1, D2}, and by hypothesis Xhas more than two position sets. If we call thisendpoint x, this means that...
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Báo cáo khoa học: "An Improved Extraction Pattern Representation Model for Automatic IE Pattern Acquisition" ppt
... Satoshi Sekine, and Ralph Grishman.2001. Automatic Pattern Acquisition for Japanese In-formation Extraction. In Proceedings of the HumanLanguage Technology Conference (HLT2001).Roman Yangarber, ... Stage 3: Ranking Pattern CandidatesGiven the dependency trees of parsed sentences inthe relevant document set, all the possible subtreescan be candidates for extraction patterns. The rank-ing ... patterns, clas-sifies a document as retrieved if any of the patternsmatch any portion of the document, and as randomotherwise. Thus, we can get the performance of textclassification of the pattern...
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Báo cáo khoa học: "An Improved Error Model for Noisy Channel Spelling Correction" ppt
... thestring confidant, we do not really want tomodel this error as P(a | e), but rather P(ant |ent). And anticedent can more accurately bemodeled by P(anti | ante), rather than P(i | e).By ... modelgives significant performanceimprovements compared to previouslyproposed models.IntroductionThe noisy channel model (Shannon 1948)has been successfully applied to a widerange of problems, ... theoriginal formulation in (Church and Gale1991). Doing so resulted in a slightdegradation in performance. The data weare using is much cleaner than that used in(Church and Gale 1991) which probablyexplains...
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AN IMPROVED METHOD OF CONSTRUCTING A DATABASE OF MONTHLY CLIMATE OBSERVATIONS AND ASSOCIATED HIGH-RESOLUTION GRIDS docx
... misleading changes in the seasonal cycle. This risk was ameliorated bysmoothing the set of 12 correction values using a Gaussian filter and adjusting to preserve the original meanand standard deviation.Which ... inhomogeneities, rather than annual series, since some inhomo-geneities may have opposite effects in different seasons and so be undetectable in the annual mean.(The GHCN method uses annual series for ... variables other than precipitation, the adjustment used the meanx and standard deviation σ of theearlier (0) and later (1) sections. The original values x in the later section were transformed as...
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Báo cáo khoa học: "An Automatic Treebank Conversion Algorithm for Corpus Sharing" potx
... Theoretical and Methodological Issues in Machine Translation, Kyoto, Japan, July 14-16, 1993. [Chen et al. 1991] Shu-Chuan Chen, Jing-Shin Chang, Jong-Nae Wang and Keh-Yih Su, 1991. "ArchTran: ... unit pair, can be formulated by following the general corpus-based statistics- oriented transfer model for machine translation in [Chang and Su 1993]. In [Chang and Su 1993], the transfer preference ... with only one language. The mechanism used to find the transfer units and transfer rules together with the transfer score used in the above frameworks can thus be used for treebank conversion...
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the mit press an introduction to genetic algorithms feb 1996
... togoals" methods such as branch−and−bound and A*. For descriptions of these and other search methods seeWinston 1992, Glover 1989 and 1990, and Kirkpatrick, Gelatt, and Vecchi 1983. "Steepest−ascent" ... "particles" and "particle interactions" (Hanson and Crutchfield, 1992; Crutchfield andHanson 1993). This method is part of their "computational mechanics" framework for understandingcomputation ... Crutchfield and Mitchell 1994, in Das, Mitchell, and Crutchfield 1994, and in Das, Crutchfield,Mitchell, and Hanson 1995. In the last two papers, we used particles andChapter 2: Genetic Algorithms...
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