measuring spatial accessibility to primary care physicians in the chicago region
Quantitative Methods and Applications in GIS - Chapter 6 pdf
... Application in Analyzing Density Patterns 111 uses the recent 2000 census data to examine the urban density patterns in the Chicago region The study area is limited to the core six-county area in Chicago ... by the elegant economic model that explains the empirical patterns In the U.S., the TIGER/line files use the CFCC code D65 to identify the location of government center in the point file The contour ... is the distance from the CBD in kilometers.6 Using the regression tool in Excel to run simple linear regressions: Make sure that the Analysis ToolPak is installed in Excel Open cnty6trtpt.dbf in...
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Báo cáo sinh học: " Genetic parameters for social effects on survival in cannibalistic layers: Combining survival analysis and a linear animal model" pdf
... will use the linear animal model including associative effects to estimate genetic parameters [8,13,20] For the remaining part of the paper, we will refer to the linear animal model including associative ... both laying houses, the 17week-old hens were allocated to laying cages, with four birds of the same line and age in a cage The individuals making up a cage were combined at random In both laying ... breeding values, with incidence matrix ZS linking observations on individuals to the associative breeding values of their group members (i.e., individuals in the same cage); and e is a vector...
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Báo cáo khoa học: "A Linear-time Model of Language Production: some psychological implications" doc
... decisions are not subJeCt to backup-="they are ~rritten in indelible ink" This is also a property of Marcus's "deterministic" parser It is intriguing to speculate that indelibility may be a key ... Regretably, the completion of this paper has been delayed in order for the author to give priority to his dissertatlon 56 References [I] Garrett M.F (1979) "Levels of Processing in Sentence Production", ... (1978) "Making subsequent references., syntactic and rhetorical constraints", TINLAP-g University of Illinois [6] (1978) "Language generation: Automatic Control of Grammatical Detail", COLING78 Bergen...
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Báo cáo sinh học: " Research Article A Double S-Shaped Bifurcation Curve for a Reaction-Diffusion Model with Nonlinear Boundary Conditions" doc
... corresponds to the case when q ρ both 1.11 and 1.12 We would then expect this to be the point at which the branch of solutions of 1.10 bifurcates into the separate cases To conclude the section, ... is evaluated for the given ρ and its unique q ρ to obtain the corresponding unique λ The result is a bifurcation diagram portraying λ versus ρ Due to the improper integrals in H ρ, q ρ , this ... is increasing on 0, ∞ and bounded above by the horizonal asymptote, y eβ Also, F u is shown in Figure We present the main theorem of this subsection followed by computational results in the...
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Báo cáo hóa học: "MULTIPLE PERIODIC SOLUTIONS FOR A DISCRETE TIME MODEL OF PLANKTON ALLELOPATHY" potx
... Fang Thus N1 (α,β,γ) (N2 (α,β,γ)) is increasing (decreasing) in the first variable, decreasing (increasing) in the second variable, increasing (decreasing) in the third variable Notice that α12 ... s =0 Now we can claim that the first inequality is Similar to the above proof, we can prove that the second inequality is valid In the following, we make the following assumptions ω −1 ω −1 ¯ ... according to Corollary 3.8, the above system has at least two positive 100-periodic solutions Similar to the proof of Theorem 3.7, we can prove the following results Theorem 3.10 In addition to...
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IMAGE PROCESSING AND SUPER RESOLUTION METHODS FOR A LINEAR 3D RANGE IMAGE SCANNING DEVICE FOR FORENSIC IMAGING
... level Another possible solution to achieve higher spatial resolution is to increase the size of the chip However, increasing the size of the chip leads to an increase in capacitance One promising ... Gaussian smoothing operator is applied to the value channel to ensure that the peak lies in the center of the laser stripe This masked value channel is then used to find the peak in intensity which ... the stepper motors power to the linear actuator This ensures the smooth motion of the carriage with extremely minimal variations in its speed 15 Figure Linear Actuator used to collect data The...
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Computational methods for a phase field model of grain growth kinetics
... allows us to determine if a given grid point is interior to a grain or not If the grid point is completely interior to a grain, we not solve the corresponding evolution equation for the order ... used in updating the iterates and residual In every iteration of the method, the inner products are found in order to update the scalars which are defined to make the sequence satisfy certain orthogonal ... distinct domains is infinetly thin In the sense of numerics, if a grid is assumed to have been superimposed on the domain, at every grid point either we have phase or phase but not a combination...
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Báo cáo khoa học: "Combining a Statistical Language Model with Logistic Regression to Predict the Lexical and Syntactic Difficulty of Texts for FFL" potx
... Because of this, they recommend using the PO model (4) In Equation 4, x is the vector containing the independent variables, αj is the intercept parameter for the jth level and β is the vector of regression ... for the baseline category (here, j = 1), α1 and β1 = Thus, when looking for the probability of a text belonging to the baseline level, it is easy to compute the numerator, since exp(0) = The ... the number of tokens in a text Deciding what is the best linguistic unit to consider The equations introduced above use 21 the “mean number of words per sentence”, we decided to also take into...
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Exergoeconomic performance optimization for a steadyflow endoreversible refrigeration model including six typical cycles
... 1998) in power engineering and engineering thermophysics from the Naval University of Engineering, P R China His work covers a diversity of topics in engineering thermodynamics, constructal theory, ... 2010) in power engineering and engineering thermophysics from the Naval University of Engineering, P R China His work covers topics in finite time thermodynamics and thermoacoustic engines He ... engineering thermodynamics, constructal theory, reliability engineering, and marine nuclear reactor engineering He is a Professor in the Department of Power Engineering, Naval University of Engineering,...
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Fault tree synthesis from a directed graph model for a power distribution network
... 122 to 121 to 120 to I16 binations of events lead to the top event (the same top event used to generate the digraph) Starting with the topevent variable, the appropriate operators are applied ... Changes in the output variable are caused by changes in the input variable, VI On the normal edge, the strength of the relationship is reflected in the gain between the variables, and the dynamics ... +1 sors) and then connected by linking input variables from TI-M TI one model with output variables from another, following (6w the physical system topology [5] The process stops at the s0.ES system...
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Tài liệu Báo cáo " Fully parallel methods for a class of linear partial differential-algebraic equations " pptx
... 0.78 Using processors of Cluster 1350 and applying the PSU methods to the BVP (30) we observe that the total time increases together with the growth of the number N = h Table N 24 30 40 Toltal ... discretize in the spatial variable x = (x1, , xd) by choosing a mesh size h > and approximate the problem in the discrete domain Ωh by using the second order centered difference formula It leads to the ... the nonnegativity of the pencil {A, B}, we can split the IBVP (5)-(7) into the IBVP (9)-(11) and the BVP (12)-(13) Theorems 4.11 and 5.2 [4] ensure that the PFS method in the symmetric and commutative...
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Tài liệu A COMPREHENSIVE QUANTITATIVE MODEL FOR ANALYZING BOND REFUNDING DECISIONS pptx
... support tool for determining the best refunding decision DESCRIPTION OF THE MODEL There are numerous interacting variables that affect the decision to refund a bond issue as mentioned above In the ... typing values into suitably labeled spreadsheet cells The index used to determine the interest rate on the new bond is entered as a series of forecasted values The type of refunding (fixed to ... fixed to floating, floating to fixed and floating to floating) is selected from a menu under macro control which creates and lays out the output, as determined by the input data USE OF THE MODEL The...
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Tài liệu Towards a conceptual reference model for project management information systems ppt
... ‘‘reference information model” was first used by Luiten et al in 1993 when they combined their individual research activities on modelling in the architecture, engineering, and construction domain The ... of domain experts followed both the chain sampling and theoretical sampling approaches [32, p 237] Although they were identified by means of chain sampling, the interview topic was determined by ... Termination: In the termination phase, the project results are submitted to the project sponsor (Internal Project Termination) In addition, the enterprise closes the project and endeavours to...
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Tài liệu Báo cáo khoa học: "A Hybrid Hierarchical Model for Multi-Document Summarization" ppt
... of latent topics of document sets in extracting summaries In these models, the challenges of inferring topics of test documents are not addressed in detail One of the challenges of using a previously ... on topicword distributions Similarly, sim2 provides information on the similarity between the weights of the topics in each sentence They jointly effect the sentence score and are combined in ... Hierarchical topic models and the nested chinese restaurant process In In Neural Information Processing Systems [NIPS], 2003a T Joachims Making large-scale svm learning practical In In Advances in Kernel...
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Tài liệu Báo cáo khoa học: "A Unified Graph Model for Sentence-based Opinion Retrieval" pdf
... determines relevance by the query term matching, and the sentiment word from is used to express an opinion We use the word pair to maintain the associative information between the topic term and the ... bag-of-word, the sentence is split into word pairs which can maintain the contextual information On the one hand, word pair can identify the relevant opinion according to intra-sentence contextual information ... work lies in using word pairs to represent the information needs for opinion retrieval On the one hand, word pairs can identify the relevant opinion according to intra-sentence contextual information...
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Tài liệu Báo cáo khoa học: "A probabilistic generative model for an intermediate constituency-dependency representation" pptx
... the bottom the original category determined by the content word (or the original category of the conjuncts if it is a junction structure), and at the top, the derived category which relates to ... which relates to the grammatical role of the whole block in relation to the governing block In several cases we can observe a shift in the categories of a block, from the original to the derived category ... Concerning the other metrics, as the number of k-best candidates increases, the PCFG model outperforms the TDS-reranker both according to the BDS and the JDS Unfortunately, the performance of the...
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Tài liệu Báo cáo khoa học: "A Joint Statistical Model for Simultaneous Word Spacing and Spelling Error Correction for Korean" pdf
... spelling correction candidates Candidates are increased in number by inserting the blank characters on the created candidates, which cover the spacing error correction candidates We find the best ... corresponding to the beginning of the sentence When Eumjeol/Eojeol candidates are selected, the algorithm prunes the candidates according to the accumulated probabilities, doing beam search Once the best ... characters in the test corpus The experiment shows that our joint model has a flexibility of utilizing already existing blanks (spacing) in the input sentence System n-gram A n-gram B Baseline 89.35%...
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Tài liệu Báo cáo khoa học: "A Phonotactic Language Model for Spoken Language Identification" pptx
... counts to refine the contribution of each n-gram to LID We begin by normalizing the vectors representing the spoken document by making each vector of unit length Our second weighting is based on the ... training corpus from L languages Since each language has at least one document in the training corpus, we have D ≥ L d ( w) is the number of documents containing the word w Letting cw, d be the ... Analysis The fundamental idea in LSA is to reduce the dimension of a document vector, W to Q, where Q
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Tài liệu Báo cáo khoa học: "A Localized Prediction Model for Statistical Machine Translation" ppt
... decode the MT03 test set using the modied oat weights As shown in line and line there is almost no change in performance between training on the original training data in Eq or on the modied training ... the training data take about hours on a single Intel machine Although the online algorithm does not require us to so, our training procedure keeps the entire training data and the weight vector ... over % of the training data The model including the binary features is trained on the entire training data We obtain about million features of the type dened in Eq by setting the threshold Forty...
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