katz estimation of probabilities from sparse data
Báo cáo khoa học: "CONTEXTUAL WORD SIMILARITY AND ESTIMATION FROM SPARSE DATA" ppt
... Publishers, Inc., San Maeio, Cali- fornia. Slava M. Katz. 1987. Estimation of probabilities from sparse data for the language model com- ponent of a speech recognizer. IEEE Transac- tions on ... application of the estimation method. This was not feasible with the size of our corpus, and the rather noisy data we had. To avoid this problem, we obtained the set of pairs with high probability from ... deleted these pairs from the data base that is used by the estimation method, forcing the method to recover their probabilities using the other pairs of the corpus. The second set, of pairs with...
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Tài liệu Báo cáo khoa học: Quantitative estimation of channeling from early glycolytic intermediates to CO2 in intact Escherichia coli pdf
... regulation of metabolism. Whereasthe usual mechanism proposed for channeling is the (often) transient inter-action of sequential pathway enzymes, many of the supporting data come from results ... highdegree of channeling of fructose 1,6-bisphosphate(Fru1,6P2)toCO2(99 16% of the ux from Fru1,6P2channeled, P ẳ 0.005). This result requiresthat all of the downstream steps from Fru1,6P2topyruvate ... rate of the evolution of 14CO2 from the earliesttime point (see Results). Also recall from the Resultsthat the CO2evolved from [14C]glucose was strictlyproportional to the total uptake of...
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Tài liệu THE ESTIMATION OF THE EFFECTIVE REPRODUCTIVE NUMBER FROM DISEASE OUTBREAK DATA pdf
... However, it is assumed that THE ESTIMATION OF R(t) FROM DISEASE OUTBREAK DATA 281Figure 7. Residuals plots from OLS estimation applied to theSEIR-generated synthetic data s et. (a) Residuals versus ... number of the matrix χ(ˆθGLS, n)TW (GLS)(GLS, n) is 9.2ì1019.Truncation of the data sets helped considerably with the GLS estimation process, THE ESTIMATION OF R(t) FROM DISEASE ... THE ESTIMATION OF R(t) FROM DISEASE OUTBREAK DATA 275Figure 5. Model fits obtained using GLS on truncated influenza data from season 1998–99, weights equal to...
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Tài liệu Fertility, Family Planning, and Reproductive Health of U.S. Women: Data From the 2002 National Survey of Family Growth doc
... behavior and reproductive health of men and women (11–13). Strengths and Limitations of the Data The data in this report come primarily from the most recent cycle of the NSFG conducted in 2002, ... numbers of pregnancies and education is also seen with number of children ever born (parity): 47 percent of college graduates 22–44 years of age were childless (nulliparous) at the date of interview ... race other than black or white. Use of Family Planning and Other Medical Services (tables 85–96) Tables 85–96 show data on a number of aspects of use of family planning services and other...
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Báo cáo " Estimation of emission factors of air pollutants from the road traffic in Ho Chi Minh City " docx
... The estimation of emissions largely depends on the quality of emission factors used for calculation. The study on the estimation of emission factors is important for calculating the emission of ... et al. [6]). The advantage of road tunnel studies is the low cost, and possibility of determining emissions not only from the engines, but also from evaporation of fuel. However, it is not ... emitted from diesel vehicles is higher than that from gasoline vehicles. In the research in HCMC, HDVs contribute only about 0.5% of the total number of vehicles, while according to results of...
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From Patient Data to Medical Knowledge The Principles and Practice of Health Informatics ppt
... permission of the publisher.First published 2006Library of Congress Cataloging-in-Publication Data Taylor, P. (Paul), Dr. From patient data to medical knowledge : the principles and practice of healthinformatics ... transformation of clinical data into various forms of medical knowledge.In the third stage, the loop is closed and the knowledge obtained from the data is used to inform the management of future ... EHR:.Integration of information across different health care organisations.The use of routinely collected data as the raw material of medical research.The development of software that can...
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Báo cáo khoa học: "Learning the Countability of English Nouns from Corpus Data" ppt
... in the ALT-J/E data, so this class was hand-checked, giving a total of 104 entries; 84 of thesewere attested in the training data. Our classification of countability is a subset of ALT-J/E’s, ... chose this be-cause of its good coverage of different usages of En-glish, and thus of different countabilities. The onlycomponent of the original annotation we make use of is the sentence tokenisation.Below, ... vs. the number of the headnouns of conjuncts (e.g. dogs and mud =PLURAL,SINGULAR)N of N constructions:2Dthe number of the targetnoun (N) vs. the type of the Nin an N of Nconstruction...
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Báo cáo khoa học: "Learning from evolving data streams: online triage of bug reports" potx
... Al-Kofahi, J., andNguyen, T. (2011). Fuzzy set and cache-basedapproach for bug triaging. In Proceedings of the 19th ACM SIGSOFT symposium and the13th European conference on Foundations of software ... on the analysis of concept drift in data streams and on the evaluation of learning under itsconstraints. We also show that for evolving issuetracker data, in a large majority of cases SGD Re-gression ... there are many sparse features, and is especially useful in learning from text from fast evolving data. The features suchas unigram and bigram counts that we rely on arenotoriously sparse, and...
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Báo cáo khoa học: "Similarity-Based Estimation of Word Cooccurrence Probabilities" doc
... Processing. Mercer Dekker, Inc., pages 651-699. Katz, Slava M. 1987. Estimation of probabilities from sparse data for the language model component of a speech recognizer. IEEE Transactions on ... estimating probabilities of English bigrams. Computer Speech and Language, 5:19-54. Dagan, Ido, Shaul Markus, and Shaul Markovitch. 1993. Contextual word similarity and estimation from sparse data. ... will be missing from any finite sample. Yet, the aggregate probability of all these unseen bigrams is fairly high; any new sample is very likely to contain some. Because of data sparseness, we...
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The Estimation of Mechanical Properties of Polymers from Molecular Structure ppt
... value of 13 GPa has been extrapolated from experimental data. This agreement points out the utility of this ap- proach in estimating the strength of ordered poly- mers. The effects of molecular ... densities reported from this reference are cited at the glass transition temperature. Ref. 6. Internal data of The Dow Chemical Co. ESTIMATION OF MECHANICAL PROPERTIES OF POLYMERS 1345 ... number for a series of different polymeric materials and related the brittle stress to the number of backbone bonds per unit area. Data from Vincent as well as data from this laboratory along...
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Báo cáo hóa học: " Research Article On the Empirical Estimation of Utility Distribution Damping Parameters Using Power Quality Waveform Data" pot
... 0.18Time (s)Measured data Extrapolated data (a)−4−3−2−101234kV0.14 0.15 0.16 0.17 0.18Time (s)Envelope from Hilbert transformTransient data (measured data- extrapolated data) (b)−1.5−1−0.500.511.5Ln ... damping analysisFigure 2: Data flow and process diagram of the system damping estimation. or automatically [7, 14]. Once a single event of capacitorswitching transient data, that is, three-phase ... thesteady-state value (ideally zero). Thus, only a small number of data are utilized in order to depict the exponential satis-factorily: one cycle of data from the capacitor switching in-stant is generally...
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Báo cáo hóa học: "Frequency and 2D Angle Estimation Based on a Sparse Uniform Array of Electromagnetic Vector Sensors" pptx
... University of Hong Kong as aResearch Assistant from March 2001 to July2002 and a Senior Research Associate from January 2005 to March2005. She is currently an Associate Professor in the School of ... obtained his Ph.D. degree from the University of Hagen, Germany. From 1985 to 1987, he was a Diagnostic Engi-neer with the Control Data Canada where he designed the diag-nostic software to detect the ... invariancestructure out of two t ime-delayed sets of data collected from vector sensor array. In that each incident source’s direction of arrival (D OA) coarse estimation is obtained through a vectorcross-product...
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Statistics The Art and Science of Learning from Data pot
... Science of Learning from Data Databases Most studies design experiments or surveys to collect data to answer the ques-tions of interest. Often, though, it is adequate to take advantage of existing ... The Art and Science of Learning from Data Data Files To make statistical analysis easier, large sets of data are organized in a data file . This file usually has the form of a spreadsheet. It ... orders one copy of item 3 at a cost of $8 and two copies of item 5 at a cost of $6 each. At the end of the advertising period, you create a data file containing the orders (in dollars) of the 10...
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estimation of uncertainty in predicting ground level concentrations from direct source releases in an urban area using
... InTech, Available from: http://www.intechopen.com/books/air-quality /estimation- of- uncertainty-in-predicting-ground-level-concentrations -from- direct-source-releases-in-a Estimation of uncertainty ... Source Data Meteorological Data Surface Parameters Other Data and Constants Height of stack (hs) Ambient temperature (Ta) Monin-Obukhov length (L) Downwind distance (x) Radius of ... of the results obtained at ground level from the AERMOD equations using urban area emission data with Crystal Ballđ software. 2. Methodology This section provides a detailed overview of...
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Báo cáo lâm nghiệp: "Estimation of carbon stocks in a beech forest (Fougères Forest – W. France): extrapolation from the plots to the whole forest" pps
... those of class 1 due to the large quantities of dead wood.4.3. Improvement of the estimation methodat the whole forest scaleThe determination of age classes carried out using carto-graphic data ... particular O. Quidu from InraRennes; S. Didier, L. Gelhaye and C. Hossann from Inra Nancy; andthe students from the University of Rennes-1. This work was financedby the GIP-ECOFOR and the Office National ... detailed sur-veys are often more accurate and do not require initial inter-pretation in terms of age or species.5. CONCLUSIONThe estimate of the total stocks of the whole of Fougères for-est...
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