foundations of controlling uep methods for network preserving transient stability models
Báo cáo khoa học: "A Comparative Study of Parameter Estimation Methods for Statistical Natural Language Processing" potx
... algorithm model, the local models are trained jointly We call Set w0 = and wd = for d=1…D these two linear models local models because they For t = 1…T (T = the total number of iterations) dynamically ... algorithm can be viewed as a form natural for it; thus we limit the comparison to the of incremental training procedure (e.g., using sto- two kinds of ME models for CMMs Note that our chastic ... distributions for each tag given its context are ME models Following previous work (Ratnaparkhi, 1996), we assume that the tag of a word is independent of the tags of all preceding words given the tags of...
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Báo cáo khoa học: "Thematic segmentation of texts: two methods for two kinds of texts" pdf
... the thematic dimension of the texts, they have to be represented by their significant features from that point of view So, we only hold for each text the lemmatized form of its nouns, verbs and ... the number of occurrences of a descriptor Tj in a paragraph i; dfi is the number of paragraphs in which Tj occurs and 393 descriptor is added in the paragraph if absent In case of reinforcement, ... to the number of A occurrences and w k to the n u m b e r of B o c c u r r e n c e s In case of descriptor addition, the descriptor weight is set to the number of occurrences of the linked descriptor...
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Handbook of Residue Analytical Methods for Agrochemicals VOLUME 1 and VOLUME 2 doc
... Contents of Volume Validation of European standard (CEN) methods Scope and format of CEN methods CEN requirements for widely accepted multi-matrix/multi-residue methods Requirements for (newer) methods ... Introduction Evaluation of enforcement methods for food provided by manufacturers The need for enforcement methods from the applicant The problem with residue definition Elements and format of method description ... Validation procedures of the Nordic countries Validation of official methods in Germany The problem of appropriate documentation of validation data of multi-matrix/multi-residue methods Summary and...
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Handbook of Residue Analytical Methods for Agrochemicals pot
... Contents of Volume Validation of European standard (CEN) methods Scope and format of CEN methods CEN requirements for widely accepted multi-matrix/multi-residue methods Requirements for (newer) methods ... Introduction Evaluation of enforcement methods for food provided by manufacturers The need for enforcement methods from the applicant The problem with residue definition Elements and format of method description ... Validation procedures of the Nordic countries Validation of official methods in Germany The problem of appropriate documentation of validation data of multi-matrix/multi-residue methods Summary and...
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Nonlinear Stability of Finite Volume Methods for Hyperbolic Conservation Laws: and Well-Balanced Schemes for Sources ppt
... property for a scheme to preserve an invariant domain is an important issue of stability, as can be easily understood In particular, the occurrence of negative values for density of for internal ... if for any of these j-Riemann invariants, one has w(Ul ) = w(Ur ) Proof Since we have p mj linearly independent forms U wn in the orthogonal of ker (A(U ) j (U ) Id), they form a basis of this ... book, it seems that the materials concerning the subject of this book, the nonlinear stability of nite volume methods for hyperbolic systems of conservation laws, have never been put together and...
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Báo cáo khoa học: "A Framework of Feature Selection Methods for Text Categorization" potx
... numbers of features are to be selected, different combinations of the two measurements are required to provide the best performance Although a great number of FS methods is available, none of them ... strongly prefer frequency information, e.g., DF 4.3 Performances of Different FS Methods It is worth noting that learning parameters in WFO is very important for its good performance We use 9-fold ... Proceedings of ACL-04, the 42nd Meeting of the Association for Computational Linguistics E Riloff, S Patwardhan, and J Wiebe 2006 Feature subsumption for opinion analysis In Proceedings of EMNLP-06,...
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survey of appearance-based methods for object recognition
... local blobs of uniform brightness as the most salient aspects of an image and are therefore more suited for the latter Other approaches for example take into account the entropy of a region (Entropy ... Subspace Methods 4.1 Introduction In this section we discuss global appearance-based methods for object recognition In fact, the discussion is reduced to subspace methods The main idea for all of these ... contrast, for appearance-based models only the appearance is used, which is usually captured by different two-dimensional views of the object -of- interest Based on the applied features these methods...
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Báo cáo hóa học: " Comparison of four different methods for reliability evaluation of ecotoxicity data: a case study of non-standard test data used in environmental risk assessments of pharmaceutical substances" pdf
... not reported by any of the four evaluation methods: date of start of the test; method of preparation of stock solutions; the recovery efficiency of the method; the limit of quantification in ... the use of non-standard data for risk assessment purposes Method This study is divided into two parts: (1) an evaluation of the usefulness of four methods for reliability evaluation of test data ... (Summary of the evaluation of existing reliability evaluation methods and Summary of the reliability evaluation of the non-standard test data sections) Hypothesis and endpoint Usefulness of proposed...
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báo cáo hóa học:" Research Article Strong Convergence Theorems of Viscosity Iterative Methods for a Countable Family of Strict Pseudo-contractions in Banach Spaces" pot
... attained uniformly e for y ∈ S E , iv a uniformly Fr´ chet differentiable norm we also say that E is uniformly smooth , if the e limit 2.1 is attained uniformly for x, y ∈ S E × S E The modulus of convexity ... mapping or p-uniformly convex Banach space with uniformly Gˆ teaux a differentiable norm As applications, at the end of the paper, we apply our results to the problem of finding a zero of an accretive ... x, y ∈ S E , ii a uniformly Gˆ teaux differentiable norm, if for each y in S E , the limit 2.1 is a uniformly attained for x ∈ S E , iii a Fr´ chet differentiable norm, if for each x ∈ S E , the...
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Báo cáo hóa học: " Research Article Comparison of Error Protection Methods for Audio-Video Broadcast over DVB-H" potx
... of those features of H.264/AVC and its packetization format for real-time transport protocol (RTP) that are essential for the presented UEP method A brief review of some UEP methods is provided ... UEP With UEP Error rate 6.9% Without UEP With UEP Error rate 13.8% Accepted Unaccepted Figure 8: Overall acceptability rating of UEP scheme losses of reference pictures, it stopped decoding of ... UEP With UEP Error rate 6.9% 80 65% 33% 60 Sports 100 80 36% 35% 76% 40 68% 24% 60 32% 64% 65% 20 Without UEP With UEP Error rate 6.9% Without UEP With UEP Error rate 13.8% Without UEP With UEP...
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Báo cáo khoa học: "A comparison of five indirect methods for characterizing the light environment in a tropical fores" pptx
... dix arbres de la for t guyanaise, cultivés cinq niveaux d’éclairement, Ann Sci For 55 (1998) 681–706 [4] Brunner A., A light model for spatially explicit forest stand models, For Ecol Manag 107 ... seedlings of lowland tropical forest in Singapore, Biotropica 28 (1996) 636–648 [6] Chason J.W., Baldocchi D.D., Huston M.A., A comparison of direct and indirect methods for estimating forest canopy ... The impact of physical damage on canopy tree regeneration in tropical rain forest, J Ecol 79 (1991) 447–458 [12] Comeau P.G., Gendron F., Letchford T., A comparison of several methods for estimating...
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Báo cáo y học: "ISsaga is an ensemble of web-based methods for high throughput identification and semiautomatic annotation of insertion sequences in prokaryotic genomes" pdf
... transpositionrelated (for example, regulatory) gene models (provided by ISfinder) for ‘.fasta’ input files The recommended genome input file for ISsaga is the GenBank format because this file format normally ... For example, for an IS composed of two ORFs, ISsaga will extract the nucleotide sequence starting from the coordinates of the beginning of the first ORF to the coordinates of the end of the second ... Exploitation of ISsaga Genome context One useful feature of ISsaga is that it supplies the genome context (that is, flanking genes) for each annotated Page of IS, allowing identification of IS-induced...
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Báo cáo sinh học: " Power of three multitrait methods for QTL detection in crossbred populations" doc
... could not be 349 Power of QTL detection methods totally linearised because of the uncertainty of the dam genotype According to the notations of Elsen et al [2], the general form of the likelihood ... power of PCA did not decrease more than those of the other methods Second, the improvement of the power of PDA expected from FDA was null in this case The powers of PDA and FDA were similar for ... of informative parents F1 For FDA, the power of detection was clearly improved by the increase of nps Indeed, the estimation of the within-family covariance matrix was much more accurate for 250...
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Báo cáo sinh học: "Comparison of four statistical methods for detection of a major gene in a progeny test design" pptx
... be the vector of the m performances of the ith sire’s progeny: Y = i , l (Y Ti!, Yi and y the vector of realizations of Y i ), m i = of the genotypes at the major locus of the ith sire’s ... needed for the evaluation of the statistics under H Ten replicates of a sample of 10 sires and 10 progenies per sire used 640 s for the ls statistic, A 142 s for the I statistic and 48 s for the ... computation: a complex function of the 1!j must be integrated n times for each estimation of I SA Second and third methods: ME These methods (&dquo;modal estimation&dquo; of the sire effect U ), Z...
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Development of immersed boundary methods for isothermal and thermal flows 1
... boundary methods are not real immersed boundary methods and therefore fall out of the scope of the present 13 Chapter Introduction thesis 1.3 Brief review of Immersed boundary methods The ... evaluate the force term becomes a critical issue for a successful implementation of the pressure-velocity formulation-based IBM The calculation of body force depends on the characteristics of the immersed ... group of so-called non-body-conforming Cartesian grid methods have been proposed, in an attempt to overcome the weakness of the body-fitted grid methods As its name implies, the non-body-conforming...
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Development of immersed boundary methods for isothermal and thermal flows 2
... Evaluation of Body force The evaluation of the body force has long been the key issue for the IBM and a number of notable strategies have been developed 2.4.1 The Conventional IBM Early remarkable methods ... a large value of stiffness κ is often required which, unfortunately, would render a stiff system of equations and lead to a severe stability constraint However, if a lower value of κ is utilized, ... in the form of a closed curve Γ , as shown in Fig 2.1 With the use of the IBM, the immersed object is modeled as localized body forces acting on the surrounding fluid As a result, the IBM formulation...
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Development of immersed boundary methods for isothermal and thermal flows 3
... IBM following discussions For the unsteady case Re = 100 , a time step size of Δt = 0.001 is used To illustrate the capability of proposed two methods for evaluation of vorticity correction, results ... as the first case to examine the performance of the proposed stream-function-vorticity formulation-based IBM solver, where numerical simulations are performed for both steady ( Re = 40 ) and unsteady ... experimental result of Dütsch et al (1998) A dimensionless computational domain of size 24 × 24 is chosen, with the cylinder initially located at the center of the domain A uniform mesh of resolution...
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Development of immersed boundary methods for isothermal and thermal flows 4
... vicinity of bottom wall of the annulus for the case of AR = 2.5 and AR = owing to separation of strong convection flow In addition, the size of the tiny vortices is slightly larger for AR = than ... surface of the inner cylinder and top wall of the enclosure As a consequence, the heat transfer in these regions is enhanced The size of the pair of symmetric vortices formed on the upper side of ... upward For the case of AR = 1.67 , the inner circular cylinder is large and the gap between the inner and outer cylinders is small Therefore, the convective flow induces the formation of two...
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Development of immersed boundary methods for isothermal and thermal flows 5
... error of the numerical solution with respect to the mesh spacing, which indicates a slope of 2, implying the second order of spatial accuracy 5.2.2 Forced convection over a stationary isoflux ... number is exactly the reciprocal of local dimensionless temperature Therefore, for the problem of specified heat flux condition, the surface temperature is one of the important variables in the ... direct forcing method used in the work of Zhang & Zheng (2007) for isothermal flows is applied to correct the predicted temperature field to the corrected one While many extra procedures and efforts...
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Development of immersed boundary methods for isothermal and thermal flows 6
... Horizontal force coefficient (b) Vertical force coefficient Fig 6.17 Time evolution of force coefficients during two strokes (a) horizontal force (b) vertical force 202 Chapter Applications of ... at this small spacing of G = When f c / f st falls in the range of 0.9 − 1.3, the oscillating motion of the downstream cylinder takes control of the instability mechanism of the whole system and ... existence of transient peaks in lift at each half-stroke reversal Dickinson et al (1999) suggested that two mechanisms were responsible for the force peaks: wake capture mechanism at the beginning of...
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