[高等教育]写作论文之6：构造一个检索系统.doc

写作论文之6：构造一个检索系统以下给出的是某次学术会议所收到的150篇学术论文的关键词（key words），请以此为依据，将这些论文分类，并构造一个检索系统，使得当给出所要查找文献的一组关键词，例如（eigenvalue problem，inverse，solvability）或（risk perceptions，mental models，bias，synergistic risk），即可从上述150篇中找出有关的文章；所使用的方法应能适用于文献数量更大的情况。以下每行前的阿拉伯数字为文章编号，后面的英文单词为该文的关键词。除少量明显错误外，关键词（包括大小写）均原文照录。 1Drazin inverse，moore-penrose inverse，reverse order law； 2Nonlinear approximation problems，applications； 3Nonnested multilevel preconditioning method，Hermite element，Wilson element，Carey element，P1 element； 4Chebyshev-Halley type methods，2-th -condition，criterion； 5Convection-diffusion equations，upwind splitting scheme，maximum principle，stability and convergence； 6Matrix；singular value； 7Multisplitting，diagonal compensated reduction， symmetric positive definite； 8Superconvergence，mixed finite element，full discrete，compressible miscible displacement； 9Ishikawa fixed point iteration，contractive mappings，normal linear space，T-stable； 10Symmetric matrices，multiple linear systems，block Lanczos algorithm，block MINRES method； 11Linear ill-posed problems，regularization methods，posteriori parameter choice； 12Stabilization，finite element，reissner-mindlin plate； 13Sobelev equation，mixed finite element method，alternating-direction iteration； 14H1-Galerkin method，collocation method； 15Singular integrals，quadrature rule； 16nonlinear Schrodinger equation，infinite dimensional dynamic system，fully discrete spectral method，difference scheme； 17Generalized eigenvalue problem，shifted inverse power iteration，convergence，algebraic multileved method； 18Bivariate matrix Valued rational interpolation，error formula，matrix algorithms； 19nonlinear，parabolic Integrodifferential equation，alternating direction，finite element methoderror estimate； 20Relaxed preconditioning，multilevel method，relative conditioning number；21Toeplitz matrix，optimal sine transform preconditioner，sine transform operator，PCG method，image restoration； 22finite element，error estimates，integro-diffrential equations； 23Stream function，Navier-Stokes equation，nonlinear Galerkin method； 24symplectic schemes，vortex system，half plane，reflecting method； 25Friedrichs inequalities，Korns inequalities，finite element method；26Model of nuclear reactor dynamics，differential equations，difference scheme，numerical simulation，convergence，nonlinear；27Inexact linear programming，feasible and optimal solution；28mixed finite element methods，superconvergence，nonlinear hyperbolic equations；29Ishikawa iteration process，-hemicontractive mappings，-strongly accretive，q-uniformly smooth Banach spaces；30Quadratic form，Lanczos procedure，Gauss type quadrature rule，Monte Carlo simulation，condition number；31Conjugate gradient method，Fletcher-Reeves algorithm，linear search，inexact linearsearch；32finite element，quadrature scheme，elliptic projection，error estimates； 33generalized inverse，weighted generalized inverse，inverse order rule，matrix computation； 34Eigenvalue，interlace；35Resources estimation，enhanced oil recovery，semiconductor device，mathematical model，numerical method and analysis；36Conservation laws，shock wave，Godunov scheme，asymptotic stability；37Generalized Newton method，nonlinear complementarity problems；38Minors，weighted Moor-Penrose inverse，full-rank factorization；39Numerical solution for stiff ordinary equations，Lyapunov inequality，one-side Lipschitz condition，general linear method，existence and uniqueness of solution；40Inverse singular value problem，inverse eigenvalue problem；41Banach space，operator equation，Newtons method and its deformation，unified determination of convergence，third-order merit function；42space，operator equation，approximate solution；43Schrodinger equation，Ginzburg-Landau equation，global attractor，spectral method；44Singular H-matrix，multisplitting，parallel algorithm；45Mixed finite element，miscible displacement；46-hemicontraction，Ishikawa iteration process，Reichs inequality;47Wavelet，Galerkin method，Fourier approximation，singular integral equations；48Generalized diagonally dominant matrix，singular（nonsingular） M-matrix，Z-matrix，Schur complement；49Iterative method，nonlinear equation，numerical analysis；502nd-order elliptic problem，hybrid elements，nonconforming elements，stabilized finite element methods；51rational spline，cubic interpolation spline，error estimation， optimal error constant；52mixed finite element method，nonlinear，hyperbolic equation；53higher-order multivariable Euler-Bernoulli polynomial，recurrence sequence，generalized Fibonacci sequence，generalized Lucas sequence；54Interpolation method，rectangular element，shape function space of finite element，node parameter，F1-F2-test；55Normal matrix，arbitrary perturbations，eigenvalue，norm；56Optimal control problem，discretization，SQP algorithm，convergence analysis；57Prescribed pole，branched continued fraction，vector valued rational interpolation，algorithm；58Positive matrix，maximal eigenvalue，inclusive theorem，application；59Convergence，Runge-kutta methods，multidelay linear differential equation；60Extended linear programming，linear variational inequalities，decomposition algorithm；61Benchmark dose，dose-response，risk-assessment，NOAEL，noncancer endpoints；62Skin area，body weight，lognormal distribution， Monte Carlo；63Shower time，lognormal distribution，exposure assessment；64Multiplicative risk model，uncertainty，variability，logarithmic transformation，stochastic analysis，radon；65Risk assessment，exposure，inhalation，probabilistic，Monte Carlo，human activity patterns；66MMT，manganese health risks，inhalation reference concentration，benchmark dose，Bayesian analyses，personal exposure distribution；67Salivary cotinine，environmental tobacco smoke， air nicotine，Monte Carlo modeling，passive smoking，workplace，lung cancer，heart disease，risk assessment；68Risk perception，food-related hazards，trust，effective communication；69Risk perception，objective risk calculations vs. subjective perceptions，safety attitudes，organizational factors；70Platform movements，risk perception，offshore oil personnel；71Risk perception，personal risk，risk to the environment，consumer products；72Regulation，Clean Air Act，environment risk，industrial firms，EPA；73insurance，third-party inspections，Clean Air Act，EPA；74Informational regulation，environmental risk management，transactions costs，performance-based，specification-based，private rights；75Clean Air Act，worse-case chemical release，risk management，community participation；76Clean Air Act，small firms，environmentregulations，chemical process risk，regulatory effectiveness；77Clean Air Act，risk communications，worse-case chemical release，community participation；78ISO 14000，Clean Air Act，risk management，environmental regulations；79Benzene，physiologically-based pharmacokinetic modeling，gender differences；80Water intake，distribution，pregnant and lactating women；81Exogenous risks，endogenous，accident，lethal disease，analysis，regression；82Risk perception，trust，risk communication，willingness to pay；83Accidents causes，risk perception，culture，fatalism；84Trichloroethylene，PBPK models，toxicokinetics，enterohepatic recirculation；85Probalistic，uncertainty factor，distribution，reference dose，hazard quotient；86Fish consumption，continuing survey of food intake by individuals，bootstrap interval，exposure；87Arithmetic mean，geometric mean，grouped data，epidemiological data；88False positive rates，liver carcinogens，laboratory animal carcinogenicity studies，National Toxicology Program；89Surrogate model，analysis of variance，uncertainty，variability，maximum likelihood estimator；90Developmental toxicity，risk assessment，dose-response models，benchmark dose，overdispersion，Rao-Scott transformation；91Risk perceptions，mental models，optimistic bias，radon，synergistic risk；92Risk communication，risk perception，audiences，disease，sample survey；93Comparative risk assessmnet，energy systems，air pollution；94Body fat，weight，trivariate Normal distribution，PBPK models；95Chemical risks，perceived risk，risk management，risk assessment；96Risk，Inspection，Testing，Code/regulatory implementation；97Risk-informed regulation，importance measures，fault trees，Boolean optimization；98Design，probability，safety，specifications，structural engineering；99Experts,probabilistic，seismic，hazard；100Risk managemnet，dynamic systems，probability artificial intelligence，offshore platforms，architecture；101Extreme events，nonstrationary conditions，climate change，return period，risk-based engineering；102Underground pipeline，corrosion，third-party interference，uncertainty analysis，expert judgment，risk analysis；103Vulnerability，robustness，risk factors，risk analysis，system analysis；104Threat mitigation，risk reduction，attitudes；105Relative risk，Mississippi River，tankers，expert informants；106Risk assessment，mourning doves，hunting，radionuclides，heavy metals，lead shot，cesium；107Spatial mobility，temporal mobility，activity patterns，time，homes，Iowa；108Blood level，blood concentrations，exhaled breath，PBPK，pharmacokinetic，sampling；109Power frequency magnetic fields，60 Hz fields，EMF，public perception，risk communication，inverse square law；110Exposure duration，survey data，longevity bias，angler populations.111Risk perceptons，cultural theory，psychometric paradigm；112Fish consumption，health advisories，Great Lakes，reading level，risk communication，risk ladders；113Air quality，benchmarking，best available control technology，contaminant exposure，risk assessment；114Information asymmetry，risk perception，food contamination（JEL D81，D82）；115Benchmark，mercury，risk assessment，epidemiology；116Rochy Flats，social amplification of risk，technological stigma，property values，risk perception；117Risk perceptions，cultural theory；118Lethal doses，cross-species extrapolation，dose scaling，noncancer risk assessment；119Everglades，cost-benefit，economic，ecological，entropy；120pest risk analysis，phytosanitary，quarantine；121RADTRAN，transportation risk，routing，spent nuclear fuel；122RfD，uncertainty distributions，extrapolation factors，benchmark dose，critical effect size，critical effect dose，human health risk；123Sensitivity analysis，decision making，uncertainty in model predictions；124Gender，gender theory，risk perception，risk research，methods.125Biologically-based risk assessment，coke oven emissions，lung cancer，unit risk；126macroscopic model，geometric measure theory，Hilbert expansion，Boltzmann equation；design vector，constraint function，targer function，loss function，function of quality defect，horizontal cut set，subordination level，satisfactory solution；127fuzzy mathematics，labor scheme，synthesis deciding；128assignment problem，dynamic programming；129maximum modulus principle，field，continuous function；130travelling salesman problem，heuristic，algorithm；131functional graph，functional digraph，enumeration；132Berkson-Gage procedure，censorship，follow-up，paradox；133functional differential equation，periodic solution，controllability；134fractonal additional design，quasi-level design，analysis of variance；135Mobius transformation，invariant set，fractal；136attribute measurement，attribute clustering network approach，forecasting of future price trend；137Hermitian matrix，eigenvalue，inequality on trace of the matrices；138-Matrix，differential operator，linear homogeneo